JP7420599B2 - Leak repair jig, leak repair method - Google Patents

Leak repair jig, leak repair method Download PDF

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JP7420599B2
JP7420599B2 JP2020041749A JP2020041749A JP7420599B2 JP 7420599 B2 JP7420599 B2 JP 7420599B2 JP 2020041749 A JP2020041749 A JP 2020041749A JP 2020041749 A JP2020041749 A JP 2020041749A JP 7420599 B2 JP7420599 B2 JP 7420599B2
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clay
magnet
leakage
leak
leak repair
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JP2021143701A (en
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信二 大前
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Fuji Furukawa Engineering and Construction Co Ltd
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本発明は、配管等において、内部腐食や外部腐食等で発生した流体の漏洩を補修するための漏洩補修治具及びこれを用いた漏洩補修方法に関する。 The present invention relates to a leak repair jig for repairing fluid leaks caused by internal corrosion, external corrosion, etc. in piping, etc., and a leak repair method using the same.

例えば工場の設備等において、内部に流体が流れる配管が使用される。このような配管は、経時劣化(腐食)によりピンホールなどが生じる場合があり、この場合、内部の流体の漏洩が生じる。このような流体の漏洩に対しては、一度内部の流体を止めて、配管の交換等を行う必要がある。しかし、このような処置は生産を止めて行う必要があることから、生産等に支障があり装置を停止することが困難な場合には対応が困難であった。このため、より短時間で配管漏洩を応急的に補修する方法が望まれている。 For example, in factory equipment, piping through which fluid flows is used. Pinholes and the like may occur in such piping due to aging (corrosion), and in this case, internal fluid leaks. To prevent such fluid leakage, it is necessary to stop the internal fluid and replace the piping. However, since such a measure requires stopping production, it is difficult to deal with it when there is a problem with production or the like and it is difficult to stop the apparatus. For this reason, there is a need for a method for emergency repair of pipe leakage in a shorter time.

このような漏洩補修方法としては、例えば、FRPシートとFRPシートを配管に押さえつける押さえ板と、FRPシートを硬化させる硬化手段と、装置を配管に固定する磁石等の固定手段を用いた漏洩補修装置が提案されている(特許文献1)。 Examples of such leakage repair methods include, for example, a leakage repair device that uses an FRP sheet, a pressing plate that presses the FRP sheet against the piping, a curing device that hardens the FRP sheet, and a fixing device such as a magnet that fixes the device to the piping. has been proposed (Patent Document 1).

また、シート状の磁石と、磁石の吸着面に配置される粘着部材と、粘着部材を覆い、剥離可能な磁力抑止部材からなる噴出ガス応急遮断具が提案されている(特許文献2)。 Furthermore, an emergency blowout gas shutoff device has been proposed that includes a sheet-like magnet, an adhesive member disposed on the attraction surface of the magnet, and a magnetic force suppressing member that covers the adhesive member and is removable (Patent Document 2).

特開2010-84848号公報JP2010-84848A 特開2018-146037号公報Japanese Patent Application Publication No. 2018-146037

しかし、通常、配管の外面には細かな凹凸や、局所的な傷などが生じており、確実にこれらの凹凸を埋めて流体を遮断することは困難である。 However, the outer surface of the piping usually has fine irregularities and local scratches, and it is difficult to reliably fill in these irregularities and shut off fluid.

例えば特許文献1のように、FRPシートを用いた方法では、上記した凹凸や傷の隙間を確実に埋めることが困難である。また、硬化型のFRPシートが用いられるが、硬化後はシートが十分な柔軟性を有していないため、ガスの圧力によってシートと配管との隙間を流体が流れる恐れがある。特に、FRPシートの硬化時には多少の収縮が生じるため、仮に硬化前に配管の表面を確実に覆うことができても、硬化時に隙間が生じる恐れがある。 For example, in the method using an FRP sheet as in Patent Document 1, it is difficult to reliably fill the gaps between the above-mentioned irregularities and scratches. Further, although a hardened FRP sheet is used, since the sheet does not have sufficient flexibility after hardening, there is a risk that fluid may flow through the gap between the sheet and the piping due to gas pressure. In particular, since some shrinkage occurs when the FRP sheet hardens, even if the surface of the piping can be reliably covered before hardening, there is a risk that gaps will occur during hardening.

また、特許文献2では粘着部材が用いられ、磁石によって配管に押し当てられているが、通常、定型の粘着部材は、その変形能に限界があるため、なだらかな凹凸には追従することができても、局所的な傷までを完全に埋めることは困難である。このため、少し深い傷があれば、傷部分を伝って流体が漏れるおそれがある。 Furthermore, in Patent Document 2, an adhesive member is used and is pressed against the piping by a magnet, but a regular adhesive member usually has a limit in its deformability, so it cannot follow gentle unevenness. However, it is difficult to completely fill localized wounds. Therefore, if there is a slightly deep scratch, fluid may leak through the scratch.

このように、例えば工場の配管系統等における漏洩が生じた際に、配管等の表面の大小さまざまな凹凸に確実に追従して、即座に応急補修し装置停止による生産への影響を最小限にするとともに、時間経過によっても漏洩が生じにくい信頼性の高い漏洩補修治具が望まれている。 In this way, for example, when a leak occurs in a factory piping system, etc., it can reliably track irregularities of various sizes on the surface of the piping, etc., and perform emergency repairs immediately to minimize the impact on production due to equipment stoppages. At the same time, there is a need for a highly reliable leakage repair jig that does not easily cause leakage over time.

本発明は、このような問題に鑑みてなされたもので、簡易な方法で、確実に配管等の漏洩を補修することが可能な漏洩補修治具及びこれを用いた漏洩補修方法を提供することを目的とする。 The present invention has been made in view of such problems, and an object of the present invention is to provide a leak repair jig that can reliably repair leaks in piping, etc., in a simple manner, and a leak repair method using the same. With the goal.

前述した目的を達するために第1の発明は、流体の漏洩箇所の補修を行うための漏洩補修治具であって、漏洩箇所に密着させる非硬化性の粘土と、前記粘土を漏洩箇所に固定する固定手段と、漏洩箇所に密着する前記粘土の面と反対側の面に配置される磁石と、を具備し、前記粘土は磁性体を含み、前記磁石と吸着した状態で漏洩箇所に密着することを特徴とする漏洩補修治具である。 In order to achieve the above-mentioned object, a first invention is a leak repair jig for repairing a fluid leakage point, which comprises a non-hardening clay that is brought into close contact with the leakage point, and a fixing of the clay to the leakage point. and a magnet disposed on a surface opposite to the surface of the clay that is in close contact with the leakage location, the clay containing a magnetic material and adhering to the leakage location in a state where it is attracted to the magnet. This is a leak repair jig characterized by the following.

前記粘土の外周を囲むように配置される粘土流動規制部を具備することが望ましい。また、前記粘土流動規制部の厚みは、前記粘土の厚みよりも厚いことが望ましい。It is desirable to include a clay flow regulating section disposed so as to surround the outer periphery of the clay. Further, it is desirable that the thickness of the clay flow regulating section be thicker than the thickness of the clay.

前記磁石は、磁性体からなるケースの内部に配置され、前記磁石は、前記粘土が配置される面とは逆側の面において前記ケースと接触し、前記磁石の側面と前記ケースとの間には、非磁性体の充填材が充填され、前記磁石が前記ケースに固定されることが望ましい。 The magnet is placed inside a case made of a magnetic material, the magnet is in contact with the case on a surface opposite to the surface on which the clay is placed, and there is space between the side surface of the magnet and the case. It is desirable that the case be filled with a non-magnetic filler and that the magnet be fixed to the case.

前記磁石の前記粘土の配置される面の断面形状が、凹曲面であることが望ましい。 It is desirable that the cross-sectional shape of the surface of the magnet on which the clay is placed is a concave curved surface.

この場合、前記粘土流動規制部が発泡体であることが望ましい。 In this case, it is desirable that the clay flow regulating section is a foam.

第1の発明によれば、漏洩箇所と密着させる面に粘土が配置されるため、粘土を配管の表面の凹凸に追従させて変形させることで、配管との隙間を確実に埋めることができる。また、粘土が非硬化性であるため、硬化に伴う収縮等もなく、長期にわたって漏れを補修することができる。 According to the first invention, since the clay is placed on the surface that is to be brought into close contact with the leakage location, the gap between the pipe and the pipe can be reliably filled by making the clay follow the irregularities on the surface of the pipe and deform it. Furthermore, since the clay is non-hardening, there is no shrinkage due to hardening, and leaks can be repaired over a long period of time.

一方、漏洩箇所からは、常に内部の流体の圧力がかかった状態であるため、粘土の経時的な変形(いわゆるクリープ変形)が進行して、流体の流路が形成される恐れがある。しかし、このような変形を抑制するために粘土を硬化させてしまうと、硬化に伴う収縮等により、却って漏洩の要因となる。 On the other hand, since the pressure of the internal fluid is always applied from the leakage point, there is a risk that the clay will deform over time (so-called creep deformation) and a fluid flow path will be formed. However, if the clay is hardened in order to suppress such deformation, the shrinkage caused by hardening may actually cause leakage.

これに対し、粘土に磁性体を配合して、磁石を用いることで、粘土が磁石に吸着する。このような磁性粘土が磁石の面上に配置されと、磁力によって、磁石の面内方向への粘土の移動(変形)が妨げられる。このため、配管内部の流体の圧力によっても、粘土の経時的な変形が抑制され、長期にわたって漏洩をより確実に止めることができる。 On the other hand, by mixing clay with a magnetic material and using a magnet, the clay will be attracted to the magnet. When such magnetic clay is placed on the surface of a magnet, the magnetic force prevents the clay from moving (deforming) in the in-plane direction of the magnet. Therefore, the pressure of the fluid inside the pipe also suppresses deformation of the clay over time, making it possible to more reliably stop leakage over a long period of time.

また、粘土の外周部に粘土流動規制部を配置することで、粘土を漏洩対象に押し付けた際や、その後の流体の内圧によって粘土が過剰に変形することを抑制することができる。 Further, by arranging the clay flow regulating section on the outer periphery of the clay, it is possible to suppress the clay from being excessively deformed by the internal pressure of the fluid when the clay is pressed against a leak target or by the subsequent internal pressure of the fluid.

特に、粘土流動規制部が発泡体であれば、より確実に配管等の外周面に粘土流動規制部を密着させることができる。 In particular, if the clay flow regulating section is made of foam, the clay flow regulating section can be more reliably brought into close contact with the outer circumferential surface of the pipe or the like.

また、磁石が磁性体からなるケースの内部に配置され、磁石の側面とケースとの間に非磁性体の充填材を充填することで、磁石の吸着面の磁力を利用することができるとともに、磁石の吸着面とは逆側の磁力線がケースを通り、減衰しない状態で吸着面側に出てくるため、ケースを配管に対してより強い磁力で吸着させることができる。 In addition, by placing the magnet inside a case made of a magnetic material and filling a space between the side surface of the magnet and the case with a non-magnetic filler, it is possible to utilize the magnetic force of the attraction surface of the magnet. The lines of magnetic force on the side opposite to the attracting surface of the magnet pass through the case and emerge on the attracting surface side without being attenuated, so the case can be attracted to the piping with stronger magnetic force.

また、磁石の吸着面側の断面形状を凹曲面とすることで、配管の外形に沿って磁石を配置することができる。 Moreover, by making the cross-sectional shape of the attracting surface side of the magnet a concave curved surface, the magnet can be arranged along the outer shape of the pipe.

第2の発明は、第1の発明にかかる漏洩補修治具を用いた漏洩補修方法であって、前記漏洩補修治具の前記粘土を、漏洩箇所にあてがい、前記漏洩補修治具を補修対象へ固定することを特徴とする漏洩補修方法である。 A second invention is a leakage repair method using the leakage repair jig according to the first invention, in which the clay of the leakage repair jig is applied to a leakage location, and the leakage repair jig is applied to a repair target. This is a leakage repair method characterized by fixing the leakage.

前記漏洩補修治具を補修対象に押圧するための固定部材を用いて、前記漏洩補修治具を補修対象へ固定してもよい。 The leak repair jig may be fixed to the repair target using a fixing member for pressing the leak repair jig against the repair target.

第2の発明によれば、わずかな作業で配管等の漏洩を補修することができる。 According to the second invention, leaks in piping, etc. can be repaired with a small amount of work.

また、固定部材を用いれば、配管等が磁性体ではない場合や、磁力による吸着のみでは内部の流体の圧力を押さえられないような場合でも、漏洩を補修することができる。 Further, by using the fixing member, leakage can be repaired even when the piping or the like is not made of a magnetic material or when the pressure of the internal fluid cannot be suppressed by magnetic attraction alone.

本発明によれば、簡易な方法で、確実に配管等の漏洩を補修することが可能な漏洩補修治具及びこれを用いた漏洩補修方法を提供することができる。 According to the present invention, it is possible to provide a leak repair jig and a leak repair method using the same, which can reliably repair leaks in piping, etc., by a simple method.

漏洩補修治具1を示す斜視図。FIG. 1 is a perspective view showing a leakage repair jig 1. FIG. (a)は、図1のA-A線断面図、(b)は、図1のB-B線断面図。(a) is a sectional view taken along line AA in FIG. 1, and (b) is a sectional view taken along line BB in FIG. 漏洩補修治具1の使用状態を示す図。FIG. 3 is a diagram showing how the leakage repair jig 1 is used. 図3のC部の拡大概念図。FIG. 4 is an enlarged conceptual diagram of part C in FIG. 3. (a)、(b)は、図4のE部における漏れの進行を示す概念図。(a) and (b) are conceptual diagrams showing the progress of leakage in section E in FIG. 4. 漏洩補修治具1の他の使用状態を示す図。FIG. 7 is a diagram showing another usage state of the leakage repair jig 1. 漏洩補修治具1aを示す斜視図。FIG. 2 is a perspective view showing a leakage repair jig 1a. (a)は、図7のI-I線断面図、(b)は、図7のJ-J線断面図。(a) is a sectional view taken along line II in FIG. 7, and (b) is a sectional view taken along line JJ in FIG. 漏洩補修治具1aの使用状態を示す図。The figure which shows the usage state of the leakage repair jig 1a. (a)は、図9のK-K線断面図、(b)は、図9のL-L線断面図。(a) is a sectional view taken along line KK in FIG. 9, and (b) is a sectional view taken along line LL in FIG.

(第1の実施形態)
以下、図面を参照しながら、本発明の実施形態について説明する。図1は、漏洩補修治具1を示す斜視図であり、図2(a)は、図1のA-A線断面図、図2(b)は、図1のB-B線断面図である。漏洩補修治具1は、漏洩箇所の補修を行うための治具であり、主に、ケース3、粘土5、流動規制部7、磁石9、充填材11等から構成される。
(First embodiment)
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the leakage repair jig 1, FIG. 2(a) is a sectional view taken along the line AA in FIG. 1, and FIG. 2(b) is a sectional view taken along the line BB in FIG. be. The leakage repair jig 1 is a jig for repairing a leakage location, and is mainly composed of a case 3, clay 5, flow regulating section 7, magnet 9, filler 11, and the like.

ケース3は磁性体からなる略箱型であり、一方の面が開口する。ケース3の開口部側が、漏洩箇所に密着させる側となる。ケース3の内部には、磁石9が収容される。ケース3の開口部側においては、磁石9の表面上に粘土5が配置される。すなわち、磁石9の少なくとも一方の面には、漏洩箇所に密着させる粘土5が配置される。 The case 3 is made of a magnetic material and has a substantially box shape, and one side is open. The opening side of the case 3 is the side that is brought into close contact with the leakage location. A magnet 9 is housed inside the case 3. Clay 5 is placed on the surface of magnet 9 on the opening side of case 3 . That is, on at least one surface of the magnet 9, clay 5 is arranged to be brought into close contact with the leakage location.

粘土5には、磁性体が含まれれる。例えば、粘土5には、鉄粉等が混入されている。したがって、粘土5は、磁石9に吸着する。なお、粘土5は、時間経過とともに硬化する硬化型粘土等ではなく、時間をおいても硬化しない又は硬化しにくい非硬化型粘土(非硬化型パテ含む)である。粘土5の機能については詳細を後述する。 Clay 5 contains a magnetic material. For example, the clay 5 contains iron powder and the like. Therefore, the clay 5 is attracted to the magnet 9. Note that the clay 5 is not a hardening clay that hardens over time, but a non-hardening clay (including a non-hardening putty) that does not harden or does not harden easily over time. The function of the clay 5 will be described in detail later.

磁石9の側面とケース3の内面との間にはクリアランスが形成される。また、磁石9は、粘土5が配置される面とは逆側の面においてケース3と接触する。また、磁石9の側面とケース3の側壁との間には、非磁性体の充填材11が充填される。磁石9の断面形状は、下方に行くにつれて幅広となるため、充填材11によって磁石9がケース3に固定される。なお、充填材11は、例えばエポキシ樹脂である。なお、図示したように、粘土5は、磁石9からはみ出して、充填材11の上面にも配置されてもよい。 A clearance is formed between the side surface of the magnet 9 and the inner surface of the case 3. Moreover, the magnet 9 contacts the case 3 on the opposite surface to the surface on which the clay 5 is placed. Furthermore, a non-magnetic filler 11 is filled between the side surface of the magnet 9 and the side wall of the case 3. Since the cross-sectional shape of the magnet 9 becomes wider toward the bottom, the magnet 9 is fixed to the case 3 by the filler 11 . Note that the filler 11 is, for example, epoxy resin. Note that, as illustrated, the clay 5 may protrude from the magnet 9 and may also be placed on the upper surface of the filler 11.

ここで、磁石9は、ケース3の内部において、一方の磁極がケース3の開口部側に向き、他方の磁極がケース3の底面と接触するように配置される。例えば、図2(a)に示すように、磁石9のN極面に粘土5が配置され、S極面がケース3の底面と接触する。このように配置することで、漏洩箇所に密着させる側へN極の磁力線を出すことができるとともに、S極から出る磁力線も、ケース3を通して漏洩箇所に密着させる側へ出すことができる。このため、漏洩箇所に密着させる側へ、より強い磁力を得ることができる。なお、N極とS極とは逆であってもよい。 Here, the magnet 9 is arranged inside the case 3 so that one magnetic pole faces toward the opening of the case 3 and the other magnetic pole contacts the bottom surface of the case 3. For example, as shown in FIG. 2(a), clay 5 is placed on the N-pole surface of the magnet 9, and the S-pole surface contacts the bottom surface of the case 3. By arranging it in this way, the magnetic field lines of the north pole can be brought out to the side where it comes into close contact with the leakage point, and the magnetic field lines coming out of the south pole can also be brought out through the case 3 to the side where it comes into close contact with the leakage point. Therefore, stronger magnetic force can be obtained on the side that is brought into close contact with the leakage location. Note that the north pole and the south pole may be reversed.

粘土5の外周部には、粘土5の流動を規制するための流動規制部7が配置される。図1に示すように、流動規制部7は、粘土5の外周を囲むように配置される。流動規制部7は、例えば発泡体である。流動規制部7が発泡体であれば、より大きな変形が可能であるため、必要に応じて容易に潰れ、粘土5が漏洩箇所に密着する際の妨げとなることがない。流動規制部7の厚みは、粘土5の厚みよりも厚い。 A flow regulating section 7 for regulating the flow of the clay 5 is disposed around the outer periphery of the clay 5. As shown in FIG. 1, the flow regulating section 7 is arranged so as to surround the outer periphery of the clay 5. The flow regulating section 7 is, for example, a foam. If the flow regulating part 7 is made of foam, it can be deformed to a greater extent, so it can be easily crushed if necessary, and will not interfere with the clay 5 coming into close contact with the leakage location. The thickness of the flow regulating part 7 is thicker than the thickness of the clay 5.

なお、磁石9の粘土5が配置される面の幅方向の断面形状(図2(a)に示す断面形状)は、配管等の外形に応じて凹曲面で形成され、これと直交する方向の断面(図2(b)に示す断面形状)は略矩形である。このようにすることで、配管の外面に装着した際、磁石9と粘土5とを配管の外周面に確実に密着させることができる。すなわち、漏洩補修治具1は、漏洩対象の配管の形状や配管径等の規格に合わせてそれぞれ最適な形状に設計されることが望ましい。なお、漏洩対象は配管には限られないため、平面部の漏洩を補修する場合には、凹曲面は不要である。 Note that the cross-sectional shape in the width direction of the surface of the magnet 9 on which the clay 5 is arranged (the cross-sectional shape shown in FIG. 2(a)) is formed as a concave curved surface according to the external shape of the pipe, etc. The cross section (the cross-sectional shape shown in FIG. 2(b)) is approximately rectangular. By doing so, when attached to the outer surface of the pipe, the magnet 9 and the clay 5 can be reliably brought into close contact with the outer peripheral surface of the pipe. That is, it is desirable that the leak repair jig 1 be designed to have an optimal shape in accordance with standards such as the shape and diameter of the piping to be leaked. Note that since the target of leakage is not limited to piping, a concave curved surface is not required when repairing leakage on a flat surface.

次に、漏洩補修治具1を用いた、漏洩補修方法について説明する。図3は、漏洩補修治具1の使用状態を示す図である。なお、図示した例では、配管13の漏洩部15を補修する例を示すが、前述したように、配管13以外の漏洩であっても対応可能である。 Next, a leak repair method using the leak repair jig 1 will be explained. FIG. 3 is a diagram showing how the leak repair jig 1 is used. In the illustrated example, the leakage portion 15 of the pipe 13 is repaired, but as described above, leaks other than the pipe 13 can also be repaired.

まず、漏洩補修治具1の粘土5の露出面を、配管13の漏洩部15にあてがい、漏洩補修治具1を配管13に設置する。ここで、配管13が磁性体である場合には、磁石9の磁力によって、漏洩補修治具1を補修対象である配管13へ固定することができる。すなわち、磁石9が、粘土5を漏洩部に固定するための固定手段として機能する。この際、前述したように、ケース3によって、磁石9の両方の磁極の磁力線を利用して、漏洩補修治具1を配管13へ吸着させることで、より強力に漏洩補修治具1を配管13に吸着させることができる。 First, the exposed surface of the clay 5 of the leak repair jig 1 is applied to the leak part 15 of the pipe 13, and the leak repair jig 1 is installed on the pipe 13. Here, when the pipe 13 is a magnetic material, the leakage repair jig 1 can be fixed to the pipe 13 to be repaired by the magnetic force of the magnet 9. That is, the magnet 9 functions as a fixing means for fixing the clay 5 to the leakage part. At this time, as described above, by using the magnetic lines of force of both magnetic poles of the magnet 9 to attract the leak repair jig 1 to the pipe 13, the leak repair jig 1 is more strongly attached to the pipe 13. can be adsorbed to.

図4は、図3のC部の拡大概念図である。前述したように、粘土5は不定形であるため、配管13の外面の凹凸形状に合わせて自由に変形可能であるため、確実に配管13の表面に粘土5を密着させることができる。このため、配管13と粘土5との間に隙間が生じることを抑制することができる。 FIG. 4 is an enlarged conceptual diagram of section C in FIG. 3. As described above, since the clay 5 has an amorphous shape, it can be freely deformed to match the uneven shape of the outer surface of the pipe 13, so that the clay 5 can be reliably brought into close contact with the surface of the pipe 13. Therefore, it is possible to suppress the formation of a gap between the pipe 13 and the clay 5.

ここで、発明者らは、このような粘土5を用いた場合において、時間の経過に伴い、一度漏洩を止めた部位から、漏洩が再度発生する場合があることを知見した。この原因として、粘土5の経時的な変形が進行しているものと推定した。 Here, the inventors have found that when such clay 5 is used, leakage may occur again from a site where leakage has once stopped as time passes. The cause of this was presumed to be that the clay 5 was deformed over time.

図5(a)、図5(b)は、図4のE部の拡大概念図である。図5(a)に示すように、漏洩補修直後において粘土5によって漏洩部15が塞がれ、粘土5と配管13とが密着し、磁石9の吸着によって押さえられているため、内部の流体の漏洩を止めることができる。 5(a) and 5(b) are enlarged conceptual views of section E in FIG. 4. FIG. As shown in FIG. 5(a), immediately after the leakage repair, the leakage part 15 is blocked by the clay 5, and the clay 5 and the pipe 13 are in close contact with each other and are held down by the attraction of the magnet 9, so that the internal fluid is Leakage can be stopped.

しかし、粘土5には、内部の流体の内圧が常にかかった状態となる。発明者らは、このような力が常にかかった状態では、図5(b)に示すように、粘土5の変形が徐々に進行して(図中矢印H)、配管13と粘土5との間に、微小な流路が形成されるものと推定した。すなわち、粘土5の微小な変形が徐々に進行することで、図4に示す矢印Dのように、粘土5と配管13との隙間を伝って、流体が外部に流出するものと推定した。 However, the internal pressure of the internal fluid is always applied to the clay 5. The inventors believe that when such a force is constantly applied, the deformation of the clay 5 gradually progresses (arrow H in the figure), as shown in FIG. It was presumed that a minute channel was formed between them. That is, it was estimated that as the minute deformation of the clay 5 gradually progressed, the fluid would flow out through the gap between the clay 5 and the pipe 13, as indicated by arrow D in FIG. 4.

しかし、これに対し、粘土5を固くして変形しにくい材料を用いれば、配管13の表面の凹凸に粘土5を確実に密着させることが困難となる。そこで、発明者らは、粘土5の変形能力自体はそのままにして、前述したような経時的な変形を抑制するため、磁石9を利用する本実施形態に至ったものである。 However, on the other hand, if the clay 5 is made of a material that is hard and difficult to deform, it will be difficult to reliably make the clay 5 adhere to the irregularities on the surface of the pipe 13. Therefore, the inventors have come up with this embodiment in which the magnet 9 is used in order to suppress the deformation over time as described above while leaving the deformability of the clay 5 as it is.

本実施形態では、粘土5には、磁性体(例えば鉄粉)が配合されている。したがって、粘土5は、磁石9によって吸着される(図中矢印F)。磁性体を磁石9に吸着させると、これと垂直な方向への移動も抑制される。例えば、鉄粉は非磁性体の面上では自由に移動可能であるが、磁石の面上に配置すると、個々の鉄粉同士も磁力により引き付け合うため、面上での移動に対して抵抗力が働く。また、配管13に漏洩補修治具1を吸着させることにより、磁石9と配管13との間に磁界が発生する。このように、磁性体粒子に磁場が作用することにより鎖状構造が形成され、粘土5が半固体化して剪断抵抗が増す。これにより、粘土5の配管軸方向への移動も抑制される。このように、磁石9によって、粘土5の変形を抑制することができる。 In this embodiment, the clay 5 contains a magnetic material (for example, iron powder). Therefore, the clay 5 is attracted by the magnet 9 (arrow F in the figure). When the magnetic material is attracted to the magnet 9, movement in a direction perpendicular to this is also suppressed. For example, iron powder can move freely on the surface of a non-magnetic material, but when placed on the surface of a magnet, the individual iron powders are attracted to each other by magnetic force, so there is a resistance to movement on the surface. works. Further, by attracting the leakage repair jig 1 to the pipe 13, a magnetic field is generated between the magnet 9 and the pipe 13. In this way, a chain structure is formed by the action of a magnetic field on the magnetic particles, and the clay 5 becomes semi-solid, increasing shear resistance. This also suppresses movement of the clay 5 in the axial direction of the pipe. In this way, the magnet 9 can suppress the deformation of the clay 5.

なお、このように磁石9によって吸着させた状態でも、粘土5自体は変形能力が大きいため、配管13へ強く押し付ければ、粘土5を配管13の表面に密着させることができる。しかし、粘土5を強く押し付けすぎると、粘土5が潰れて、粘土が周囲に広ってしまう。これに対し、本実施形態では、粘土5の外周に流動規制部7が配置されるため、粘土5が広がろうとしても(図中矢印G)、流動規制部7によってこれが規制される。また、流体の内圧が大きく、磁石9による変形抑制能力を超えて粘土5が変形しようとしても、流動規制部7によって粘土5の変形(広がり)を抑制することができる。 Note that even when the clay 5 is attracted by the magnet 9 in this manner, the clay 5 itself has a large deformability, so if it is strongly pressed against the pipe 13, the clay 5 can be brought into close contact with the surface of the pipe 13. However, if the clay 5 is pressed too hard, the clay 5 will be crushed and the clay will spread to the surrounding area. On the other hand, in this embodiment, since the flow regulating part 7 is arranged around the outer periphery of the clay 5, even if the clay 5 tries to spread (arrow G in the figure), this is regulated by the flow regulating part 7. Furthermore, even if the internal pressure of the fluid is large and the clay 5 attempts to deform beyond the deformation suppressing ability of the magnet 9, the flow regulating section 7 can suppress the deformation (spreading) of the clay 5.

以上のように、磁性体が配合された粘土5を用い、これを磁石9で吸着させた状態で漏洩部15に密着させることで、確実に漏洩を止めることができるとともに、経時的な粘土5の変形に伴う漏洩の再発生を抑制することができる。 As described above, by using the clay 5 mixed with a magnetic substance and bringing it into close contact with the leakage part 15 while adsorbed by the magnet 9, leakage can be reliably stopped, and the clay 5 may deteriorate over time. The re-occurrence of leakage due to deformation can be suppressed.

なお、図3に示す例では、配管13が磁性体であり、磁石9によって漏洩補修治具1を配管13に固定した例を示したが、本発明はこれには限られない。例えば、図6に示すように、漏洩補修治具1を配管13に固定部材17を用いて固定してもよい。すなわち、粘土5を漏洩部に固定するための固定手段として、固定部材17を用いてもよい。固定部材17は、例えばクランプ等であってもよく、バンドであってもよい。 In the example shown in FIG. 3, the pipe 13 is made of a magnetic material and the leak repair jig 1 is fixed to the pipe 13 by the magnet 9, but the present invention is not limited to this. For example, as shown in FIG. 6, the leakage repair jig 1 may be fixed to the pipe 13 using a fixing member 17. That is, the fixing member 17 may be used as a fixing means for fixing the clay 5 to the leakage part. The fixing member 17 may be, for example, a clamp or the like, or a band.

このように、本実施形態において、磁石9は、配管13への固定の目的ではなく、あくまでも粘土5の変形抑制のためであるため、磁石9の吸着力のみで漏洩補修治具1を配管13へ十分に押圧可能である場合を除き、固定部材17を用いて漏洩補修治具1を配管13へ固定することができる。このため、配管13は、必ずしも磁性体でなくてもよく、配管13の内圧が極めて大きく、磁石9の吸着のみでは漏洩が止まらないような場合でも、固定部材17によって漏洩補修治具1を配管13へ強く押圧し、漏洩を補修することができる。 As described above, in this embodiment, the purpose of the magnet 9 is not to fix it to the pipe 13, but to suppress the deformation of the clay 5. Therefore, the leak repair jig 1 is attached to the pipe 13 only by the attraction force of the magnet 9. The leak repair jig 1 can be fixed to the piping 13 using the fixing member 17, except when the fixing member 17 can be sufficiently pressed. For this reason, the piping 13 does not necessarily have to be made of a magnetic material, and even in cases where the internal pressure of the piping 13 is extremely high and leakage cannot be stopped only by the attraction of the magnet 9, the leak repair jig 1 can be attached to the piping by the fixing member 17. 13 to repair the leakage.

以上説明したように、本実施形態によれば、粘土5を、漏洩部15の周囲の配管13の外周面へ押圧させることで、確実に粘土5を配管13の外表面の凹凸に追従させて密着させることができる。このため、配管13と粘土5との間の隙間を埋めることができる。また、粘土5に磁性体が配合されており、磁石9に吸着させた状態で配管13に密着されるため、粘土5の経時的な変形を抑制することができる。このため、信頼性良く、漏洩を補修することができる。 As explained above, according to the present embodiment, by pressing the clay 5 against the outer circumferential surface of the pipe 13 around the leakage portion 15, the clay 5 can be made to reliably follow the irregularities on the outer surface of the pipe 13. Can be placed in close contact. Therefore, the gap between the pipe 13 and the clay 5 can be filled. Further, since the clay 5 contains a magnetic substance and is closely attached to the pipe 13 while being attracted to the magnet 9, deformation of the clay 5 over time can be suppressed. Therefore, leakage can be repaired with high reliability.

また、流動規制部7を配置することで、粘土5の変形(広がり)を抑制することができる。このため、粘土5が潰れすぎて薄くなることや、内圧によって粘土5が押し広げられることを抑制することができる。 Further, by arranging the flow regulating portion 7, deformation (spreading) of the clay 5 can be suppressed. Therefore, it is possible to prevent the clay 5 from becoming too thin due to crushing, and from being forced and spread by internal pressure.

また、ケース3を用いることで、より強力に配管13へ漏洩補修治具1を吸着させることができる。 Further, by using the case 3, the leakage repair jig 1 can be more strongly attracted to the pipe 13.

また、漏洩補修治具1を補修対象に押圧するための固定部材17を用いることで、漏洩補修治具1を補修対象へ効率良く固定することができる。 Further, by using the fixing member 17 for pressing the leak repair jig 1 against the repair target, the leak repair jig 1 can be efficiently fixed to the repair target.

なお、例えば配管13が非磁性体である場合には、磁石9によって配管13に吸着させることができないため、漏洩補修治具1と配管13との強力な磁力による吸着は不要である。いたがって、このような場合には、必ずしもケース3は必須ではない。また、粘土5の形成範囲が十分に広い場合など、粘土5の流動を抑制する必要がない場合には、流動規制部7は必ずしも必須ではない。 Note that, for example, if the pipe 13 is made of a non-magnetic material, the magnet 9 cannot attract the pipe 13 to the pipe 13, so that the leak repair jig 1 and the pipe 13 do not need to be attracted by strong magnetic force. Therefore, in such a case, case 3 is not necessarily required. Furthermore, if there is no need to suppress the flow of the clay 5, such as when the formation range of the clay 5 is sufficiently wide, the flow regulating section 7 is not necessarily essential.

(第2の実施形態)
次に、第2の実施形態について説明する。図7は、第2の実施形態にかかる漏洩補修治具1aを示す斜視図であり、図8(a)は、図7のI-I線断面図、図8(b)は、図7のJ-J線断面図である。なお、以下の説明において、第1の実施形態と同様の機能を奏する構成については、図1~図7と同一の符号を付し、重複する説明を省略する。
(Second embodiment)
Next, a second embodiment will be described. FIG. 7 is a perspective view showing a leakage repair jig 1a according to the second embodiment, FIG. 8(a) is a sectional view taken along the line II in FIG. It is a sectional view taken along line JJ. In the following description, components that perform the same functions as those in the first embodiment are designated by the same reference numerals as in FIGS. 1 to 7, and redundant description will be omitted.

漏洩補修治具1aは、漏洩補修治具1と略同様の構成であるが、形状及び各構成の配置が異なる。漏洩補修治具1aは、一対の半割部材2がセットで使用される。なお、図7及び図8では、一方の半割部材2のみを示す。 The leak repair jig 1a has substantially the same configuration as the leak repair jig 1, but differs in shape and arrangement of each component. A pair of half-split members 2 are used as a set in the leakage repair jig 1a. Note that in FIGS. 7 and 8, only one half member 2 is shown.

半割部材2のケース3aは、半円形の断面形状を有し、一対の半割部材2を対向させて突き合せることで、略円筒形となる。ケース3aの軸方向(円筒形とした際の軸方向であって、図8(b)の左右方向)の一方の端部側(図8(b)の右側端部であって、以下「小径側」とする)は、内径が小さく内面に流動規制部7aが配置される。また、流動規制部7aと軸方向に併設する部位は、ケース3aの内径が拡径され、拡径部と接触するように磁石9が配置される。磁石9も半円状であり、一対の半割部材2を対向させた際には、磁石9が突き合せられて略リング状になる。なお、ケース3aの小径側端部の内径と、磁石9の内径は略同一である。 The case 3a of the half-split member 2 has a semicircular cross-sectional shape, and becomes approximately cylindrical by making the pair of half-split members 2 face each other and butt against each other. One end side (the right end in FIG. 8(b), hereinafter referred to as the "small diameter" The inner diameter is small and the flow regulating portion 7a is arranged on the inner surface. Further, the inner diameter of the case 3a is enlarged at a portion axially adjacent to the flow regulating portion 7a, and the magnet 9 is arranged so as to be in contact with the enlarged diameter portion. The magnets 9 are also semicircular, and when the pair of half-split members 2 are placed opposite each other, the magnets 9 butt against each other and form a substantially ring shape. Note that the inner diameter of the small-diameter end of the case 3a and the inner diameter of the magnet 9 are approximately the same.

磁石9の内面側には粘土5aが配置される。なお、小径側に配置される流動規制部7aの内径は、これと併設される粘土5aの内径よりも小さい。磁石9の小径側とは逆側に併設するように、ケース3aの内径が縮径され、縮径部に粘土5bが配置される。すなわち、粘土5a、5bが、異なる内径となるように複数段に形成される。粘土5a、5bは、前述した粘土5と同様に磁石に吸着する。なお、磁石9の表面に配置され、内径の小さな粘土5aと、これと併設され、内径の大きな粘土5bとの間には、磁石9の側端面が露出する。 Clay 5a is placed on the inner surface of the magnet 9. Note that the inner diameter of the flow regulating portion 7a disposed on the small diameter side is smaller than the inner diameter of the clay 5a provided therewith. The inner diameter of the case 3a is reduced so as to be placed on the side opposite to the small diameter side of the magnet 9, and the clay 5b is placed in the reduced diameter part. That is, the clays 5a and 5b are formed in multiple stages so as to have different inner diameters. The clays 5a and 5b are attracted to the magnet in the same way as the clay 5 described above. Note that the side end surface of the magnet 9 is exposed between the clay 5a arranged on the surface of the magnet 9 and having a small inner diameter and the clay 5b arranged side by side and having a large inner diameter.

ケース3aの軸方向であって、小径側とは逆側(以下「大径側」とする)の端部には、流動規制部7bが配置される。すなわち、ケース3aの両端部には流動規制部7a、7bが配置される。したがって、半割部材2を対向させて円筒形とした際に、流動規制部7a、7bは、粘土5a、5bの外周を囲むように配置される。なお、流動規制部7a、7bは前述した流動規制部7と同様に、例えば発泡体で構成される。また、ケース3aの大径側端部の内径と、これと併設される粘土5bの部位のケース3aの内径は略同一である。また、いずれの流動規制部7a、7bも、粘土5a、5bよりも厚みが厚い。 A flow regulating portion 7b is disposed at the end of the case 3a in the axial direction on the opposite side to the small diameter side (hereinafter referred to as the "large diameter side"). That is, flow regulating parts 7a and 7b are arranged at both ends of the case 3a. Therefore, when the half members 2 are made to face each other to form a cylindrical shape, the flow regulating portions 7a, 7b are arranged so as to surround the outer periphery of the clays 5a, 5b. Note that, like the flow regulating section 7 described above, the flow regulating sections 7a and 7b are made of, for example, a foam. Furthermore, the inner diameter of the large-diameter end of the case 3a and the inner diameter of the clay 5b portion of the case 3a that is attached thereto are substantially the same. Further, both flow regulating portions 7a and 7b are thicker than clays 5a and 5b.

次に、漏洩補修治具1aを用いた、漏洩補修方法について説明する。図9は、漏洩補修治具1aの使用状態を示す図(部分断面図)であり、図10(a)は、図9のK-K線断面図、図10(b)は、図9のL-L線断面図である。本実施形態では、配管13とエルボ19との接続部近傍における漏洩を補修する方法を示す。なお、本実施形態は、配管13と接続される対象がエルボ19であるが、フランジ部や他の継手部などとの接合部近傍にも適用可能である。 Next, a leak repair method using the leak repair jig 1a will be explained. FIG. 9 is a diagram (partial sectional view) showing how the leak repair jig 1a is used, FIG. 10(a) is a sectional view taken along the line KK in FIG. 9, and FIG. It is a sectional view taken along line LL. In this embodiment, a method for repairing leakage near the connection between the pipe 13 and the elbow 19 will be described. In this embodiment, the object to be connected to the pipe 13 is the elbow 19, but it is also applicable to the vicinity of the joint with a flange or other joint.

配管13の外周部に一対の半割部材2を対向させて配置し、バンド等の固定部材21で固定する。すなわち、一対の半割部材2を突き合せて円筒形の漏洩補修治具1aとし、これを配管13の外周に固定する。この際、小径側が配管13側となり、大径側がエルボ19側となるように配置される。したがって、小径側の流動規制部7aは、配管13の外周面に押圧され、大径側の流動規制部7bがエルボ19の外周面に押圧される。 A pair of half-split members 2 are arranged facing each other on the outer periphery of the pipe 13 and fixed with a fixing member 21 such as a band. That is, a pair of half-split members 2 are butted together to form a cylindrical leak repair jig 1a, which is fixed to the outer periphery of the pipe 13. At this time, they are arranged so that the small diameter side is on the piping 13 side and the large diameter side is on the elbow 19 side. Therefore, the flow regulating part 7a on the small diameter side is pressed against the outer circumferential surface of the pipe 13, and the flow regulating part 7b on the large diameter side is pressed against the outer circumferential surface of the elbow 19.

また、漏洩補修治具1aは、粘土5a、5bの段差部分(磁石9の側端面)が、エルボ19の端面に接触するように配置される。また、内径の小さな粘土5aは配管13の外表面に密着し、内径の大きな粘土5bはエルボ19の外表面に密着する。 Further, the leakage repair jig 1a is arranged such that the stepped portions of the clays 5a and 5b (the side end surfaces of the magnets 9) are in contact with the end surfaces of the elbows 19. Further, the clay 5a with a small inner diameter is in close contact with the outer surface of the pipe 13, and the clay 5b with a large inner diameter is in close contact with the outer surface of the elbow 19.

また、このようにして配置された漏洩補修治具1aは、粘土5a、5bを漏洩箇所に固定するための固定手段である固定部材17aによって、エルボ19に固定される。固定部材17aは、例えば、配管13に外面に配置されたアングルと、エルボ19に掛けられたU字ボルトによって構成される。この場合、アングルが漏洩補修治具1aの小径側端面と接触し、エルボ19に掛けられたU字ボルトがアングルにナットで固定される。固定部材17aによって、漏洩補修治具1a(磁石9の側端面)がエルボ19(エルボ19の端面)に押圧されるようにして、漏洩補修治具1aが固定される。 Further, the leak repair jig 1a arranged in this manner is fixed to the elbow 19 by a fixing member 17a which is a fixing means for fixing the clays 5a and 5b to the leak location. The fixing member 17a is composed of, for example, an angle disposed on the outer surface of the pipe 13 and a U-shaped bolt hung on the elbow 19. In this case, the angle comes into contact with the small-diameter end surface of the leakage repair jig 1a, and the U-shaped bolt hung on the elbow 19 is fixed to the angle with a nut. The leak repair jig 1a is fixed by the fixing member 17a so that the leak repair jig 1a (the side end surface of the magnet 9) is pressed against the elbow 19 (the end surface of the elbow 19).

このようにすることで、エルボ19との接続部近傍の段差を有する配管13に対しても、漏洩補修治具1aを固定し、漏洩を補修することができる。 By doing so, the leakage repair jig 1a can be fixed to the pipe 13 having a step near the connection part with the elbow 19, and the leakage can be repaired.

なお、エルボ19と配管13との接続部からの漏洩にも対応可能である。この場合には、粘土5a、5bの段差における磁石の側端面にも粘土5が配置されることが望ましい。また、ケース3aは、磁石9と接触するため全体として磁石となるが、粘土5bの背面側にも別途の磁石9を配置してもよい。 It is also possible to deal with leakage from the connection between the elbow 19 and the pipe 13. In this case, it is desirable that the clay 5 is also placed on the side end surface of the magnet at the step between the clays 5a and 5b. Furthermore, since the case 3a comes into contact with the magnet 9, it becomes a magnet as a whole, but a separate magnet 9 may also be placed on the back side of the clay 5b.

第2の実施形態によれば、第1の実施形態と同様の効果を得ることができる。また、漏洩補修治具1aによれば、他部材との接続部近傍における漏洩に対しても対応が可能である。 According to the second embodiment, effects similar to those of the first embodiment can be obtained. Further, according to the leakage repair jig 1a, it is possible to deal with leakage near the connection portion with other members.

以上、添付図を参照しながら、本発明の実施の形態を説明したが、本発明の技術的範囲は、前述した実施の形態に左右されない。当業者であれば、特許請求の範囲に記載された技術的思想の範疇内において各種の変更例または修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。 Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the technical scope of the present invention is not limited to the embodiments described above. It is clear that those skilled in the art can come up with various changes and modifications within the scope of the technical idea stated in the claims, and these naturally fall within the technical scope of the present invention. It is understood that it belongs.

例えば、上述した各実施形態において、粘土5、5a、5bには磁性体が配合されて、粘土5、5a、5bを磁石9によって吸着することで、粘土5、5a、5bの変形を抑制したが、漏洩部の圧力が低い場合等、粘土5、5a、5bの経時的な変形がほとんどない場合には、磁石9は不要である。すなわち、粘土5、5a、5bに磁性体を配合しなくてもよい。この場合でも、不定形の非硬化性の粘土であれば、配管等の外周部の大小さまざまな凹凸に確実に追従して変形することができるため、粘土を漏洩部に密着させて、磁石や固定部材などの固定手段で固定することで、漏洩箇所を簡易に補修することができる。 For example, in each of the embodiments described above, the clays 5, 5a, and 5b are blended with a magnetic material, and the clays 5, 5a, and 5b are attracted by the magnet 9, thereby suppressing the deformation of the clays 5, 5a, and 5b. However, if the clay 5, 5a, 5b hardly deforms over time, such as when the pressure at the leakage part is low, the magnet 9 is unnecessary. That is, it is not necessary to mix the magnetic material into the clays 5, 5a, and 5b. Even in this case, if it is an irregularly shaped non-hardening clay, it can reliably deform by following the irregularities of various sizes on the outer periphery of the pipe, etc., so the clay can be brought into close contact with the leakage part and the magnet or By fixing with a fixing means such as a fixing member, the leakage location can be easily repaired.

なお、粘土に磁性体が含まれていない場合には、粘土の変形抑制を目的とした磁石は不要であるが、固定手段として磁石や固定部材を用いる場合において、粘土の背面側に、配管等の外面に応じた凹曲面を有する部材を配置して、粘土を確実に漏洩箇所近傍の全面にほぼ均等に押圧可能であることが望ましい。 Note that if the clay does not contain a magnetic substance, there is no need for a magnet to suppress the deformation of the clay, but if a magnet or fixing member is used as a fixing means, there is no need to place piping, etc. on the back side of the clay. It is desirable to arrange a member having a concave curved surface corresponding to the outer surface of the container so that the clay can be reliably pressed almost evenly over the entire surface near the leakage point.

1、1a………漏洩補修治具
2………半割部材
3、3a………ケース
5、5a、5b………粘土
7、7a、7b………流動規制部
9………磁石
11………充填材
13………配管
15………漏洩部
17、17a………固定部材
19………エルボ
21………固定部材
1, 1a...Leakage repair jig 2...Half member 3, 3a...Case 5, 5a, 5b...Clay 7, 7a, 7b...Flow regulation part 9...Magnet 11 ......Filler 13...Piping 15...Leakage parts 17, 17a...Fixing member 19...Elbow 21...Fixing member

Claims (8)

流体の漏洩箇所の補修を行うための漏洩補修治具であって、
漏洩箇所に密着させる非硬化性の粘土と、
前記粘土を漏洩箇所に固定する固定手段と、
漏洩箇所に密着する前記粘土の面と反対側の面に配置される磁石と、を具備し、
前記粘土は磁性体を含み、前記磁石と吸着した状態で漏洩箇所に密着する
ことを特徴とする漏洩補修治具。
A leak repair jig for repairing a fluid leak location,
non-hardening clay that adheres to the leakage area;
fixing means for fixing the clay to the leakage location;
a magnet disposed on a surface opposite to the surface of the clay that is in close contact with the leakage location ;
The clay contains a magnetic material, and adheres closely to the leakage point while being attracted to the magnet.
A leakage repair jig characterized by:
前記粘土の外周を囲むように配置される粘土流動規制部を具備することを特徴とする請求項1記載の漏洩補修治具。 2. The leak repair jig according to claim 1, further comprising a clay flow regulating section arranged to surround the outer periphery of the clay . 前記粘土流動規制部の厚みは、前記粘土の厚みよりも厚いことを特徴とする請求項2記載の漏洩補修治具。3. The leakage repair jig according to claim 2, wherein the thickness of the clay flow regulating part is thicker than the thickness of the clay. 前記磁石は、磁性体からなるケースの内部に配置され、
前記磁石は、前記粘土が配置される面とは逆側の面において前記ケースと接触し、
前記磁石の側面と前記ケースとの間には、非磁性体の充填材が充填され、前記磁石が前記ケースに固定されることを特徴とする請求項に記載の漏洩補修治具。
The magnet is placed inside a case made of a magnetic material,
The magnet contacts the case on a surface opposite to the surface on which the clay is placed,
2. The leak repair jig according to claim 1 , wherein a non-magnetic filler is filled between a side surface of the magnet and the case, and the magnet is fixed to the case.
前記磁石の前記粘土の配置される面の断面形状が、凹曲面であることを特徴とする請求項1から請求項4のいずれかに記載の漏洩補修治具。 5. The leak repair jig according to claim 1, wherein a cross-sectional shape of a surface of the magnet on which the clay is placed is a concave curved surface. 前記粘土流動規制部が発泡体であることを特徴とする請求項2または請求項3に記載の漏洩補修治具。 The leak repair jig according to claim 2 or 3, wherein the clay flow regulating part is a foam. 請求項1から請求項6のいずれかに記載の漏洩補修治具を用いた漏洩補修方法であって、
前記漏洩補修治具の前記粘土を、漏洩箇所にあてがい、前記漏洩補修治具を補修対象へ固定することを特徴とする漏洩補修方法。
A leak repair method using the leak repair jig according to any one of claims 1 to 6,
A leak repair method characterized by applying the clay of the leak repair jig to the leakage location and fixing the leak repair jig to the repair target.
前記漏洩補修治具を補修対象に押圧するための固定部材を用いて、前記漏洩補修治具を補修対象へ固定することを特徴とする請求項7記載の漏洩補修方法。 8. The leak repair method according to claim 7, wherein the leak repair jig is fixed to the repair target using a fixing member for pressing the leak repair jig against the repair target.
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JP3012087U (en) 1994-12-07 1995-06-06 有限会社マツダコーポレーション Repair tool for piping
JP2000146078A (en) 1998-11-11 2000-05-26 Seibu Gas Kk Repair cover for pipe body and repairing method for pipe body
JP2018146036A (en) 2017-03-06 2018-09-20 東京瓦斯株式会社 Ejection gas emergency shut-off tool and ejection gas emergency shut-off method
JP2018146037A (en) 2017-03-06 2018-09-20 東京瓦斯株式会社 Ejection gas emergency shut-off tool and ejection gas emergency shut-off method

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Publication number Priority date Publication date Assignee Title
JPS4518305Y1 (en) * 1966-03-09 1970-07-25
JPH03296088A (en) * 1990-04-16 1991-12-26 Daido Steel Co Ltd Magnet clay
JPH053099A (en) * 1991-06-25 1993-01-08 Mitsubishi Electric Corp Shield for leakage magnetic field

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Publication number Priority date Publication date Assignee Title
JP3012087U (en) 1994-12-07 1995-06-06 有限会社マツダコーポレーション Repair tool for piping
JP2000146078A (en) 1998-11-11 2000-05-26 Seibu Gas Kk Repair cover for pipe body and repairing method for pipe body
JP2018146036A (en) 2017-03-06 2018-09-20 東京瓦斯株式会社 Ejection gas emergency shut-off tool and ejection gas emergency shut-off method
JP2018146037A (en) 2017-03-06 2018-09-20 東京瓦斯株式会社 Ejection gas emergency shut-off tool and ejection gas emergency shut-off method

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