JP2018044562A - Pipe joint with flange - Google Patents

Pipe joint with flange Download PDF

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JP2018044562A
JP2018044562A JP2016177659A JP2016177659A JP2018044562A JP 2018044562 A JP2018044562 A JP 2018044562A JP 2016177659 A JP2016177659 A JP 2016177659A JP 2016177659 A JP2016177659 A JP 2016177659A JP 2018044562 A JP2018044562 A JP 2018044562A
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pipe
opening
flange
pipe joint
flanged
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JP6820699B2 (en
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隆志 那須
Takashi Nasu
隆志 那須
武田　信義
Nobuyoshi Takeda
信義 武田
晴久 豊田
Haruhisa Toyoda
晴久 豊田
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Sumitomo Electric Industries Ltd
Asahi Yukizai Corp
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Sumitomo Electric Industries Ltd
Asahi Yukizai Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a pipe joint with a flange which can connect two pipelines with pipe axes offset from each other in a compact manner while reducing fluid leakage and reduce pressure loss.SOLUTION: A pipe joint 1 with a flange includes: a pipe part 2; and a flange part 3 which is disposed at one end of the pipe part 2 inclining relative to the pipe part 2. The pipe joint 1 further includes a passage 6 having a first opening 4 and a second opening 5 therein. The first opening 4 is disposed on a contact surface of the flange part 3, and the second opening 5 is disposed at the other end of the pipe part 2. A center axis of the passage 6 inclines relative to the first opening 4, and the pipe part 2 and the flange part 3 are integrated.SELECTED DRAWING: Figure 1

Description

本発明は、流体輸送配管が接続される配管部材に関し、特に、水、薬液等の流体を輸送する管軸のずれた二つの配管を接続するのに用いられる管継手に関する。   The present invention relates to a pipe member to which a fluid transport pipe is connected, and more particularly, to a pipe joint used to connect two pipes with shifted pipe axes for transporting fluids such as water and chemicals.

プラント設備や装置、給湯設備等の配管を施工するときに、管軸が一致していない二つの配管を接続する技術として、複数のエルボやベンドを組み合わせて管軸のずれを吸収するものがあった（例えば、特許文献１参照）。また、一つの管継手を用いて管軸が一致していない二つの管を接続する技術として、管継手の管軸を含む面で予め分割して形成された複数の部材を一体化させた管継手を用いて、管軸のずれを吸収するものがあった（例えば、特許文献２参照）。   When constructing pipes for plant equipment, equipment, hot water supply equipment, etc., there is a technique that combines two elbows and bends to absorb misalignment of the pipe axis as a technique for connecting two pipes that do not match the pipe axis. (For example, see Patent Document 1). In addition, as a technique for connecting two pipes whose pipe axes do not coincide with each other using one pipe joint, a pipe in which a plurality of members formed in advance on the surface including the pipe axis of the pipe joint are integrated. There is one that uses a joint to absorb the displacement of the tube axis (for example, see Patent Document 2).

特開平９−１４４９５２号公報Japanese Patent Laid-Open No. 9-144952 特開平７−２０５２９９号公報JP-A-7-205299

しかしながら、上記特許文献１の二つの配管を接続する技術では、複数の継手や管を組み合わせるため接続箇所が多くなる。そのため、作業工数が増加したり、接続箇所からの流体漏れが生じ易くなったりする恐れがある。また、汎用的な継手や管を組み合わせる場合は、継手の寸法が予め固定されているため、屈曲部や迂回部が多くなり易く、配管形状が大きくなったり、圧力損失が大きくなったりする恐れがある。また、上記特許文献２の管継手では、予め形成された複数の部材を一体化させて一つの管継手を形成しているため、接合箇所の接合不良による流体漏れが生じ易くなる恐れがある。   However, in the technique for connecting the two pipes in Patent Document 1, a plurality of joints and pipes are combined to increase the number of connection points. For this reason, there is a risk that the number of work steps may increase or fluid leakage from the connection portion may easily occur. In addition, when combining general-purpose joints and pipes, the dimensions of the joints are fixed in advance, so there are likely to be a large number of bends and detours, resulting in a large pipe shape and increased pressure loss. is there. Moreover, in the pipe joint of the said patent document 2, since the several member formed previously is integrated and the one pipe joint is formed, there exists a possibility that the fluid leakage by the joining defect of a joining location may arise easily.

本発明の目的は、以上のような従来技術の問題点に鑑みてなされたものであり、管軸のずれた二つの配管を、流体漏れを低減させるとともにコンパクトに接続でき、かつ圧力損失を低減できるフランジ付き管継手を提供することである。   The object of the present invention has been made in view of the above-mentioned problems of the prior art, and can reduce the fluid leakage and the compact connection between two pipes with shifted pipe axes, and reduce pressure loss. It is to provide a flanged pipe joint.

前述の目的を達成するため、本発明の第一の態様は、管部と、管部の一端に管部に対して傾斜して配設されるフランジ部と、を備え、第一開口と第二開口とを有する流路を内部に備えるフランジ付き管継手であって、第一開口がフランジ部の当接面に配設され、第二開口が管部の他端に配設され、流路の中心線が第一開口に対して傾斜しており、管部とフランジ部とが一体型であることを特徴とする。
本発明の第二の態様は、第一の態様において、管部が曲部を有することを特徴とする。
本発明の第三の態様は、第二の態様において、管部が第一直管部と第二直管部とを有し、第一直管部の一端部にフランジ部が接続されており、第一直管部の他端部と第二直管部の一端部との間に曲部を有することを特徴とする。
本発明の第四の態様は、第二の態様において、管部が曲管部と直管部とを有し、曲管部の一端部にフランジ部が接続されていることを特徴とする。
本発明の第五の態様は、第四の態様において、曲管部の中心線が一つの円弧に対応することを特徴とする。
本発明の第六の態様は、第三の態様において、第一開口を含む第一仮想平面と、第二開口を含む第二仮想平面とが直交し、第一開口の中心を含まず第二開口の中心と第二直管部の中心線とを含む第三仮想平面が、第一仮想平面及び第二仮想平面の各々と直交していることを特徴とする。
本発明の第七の態様は、第四または第五の態様において、第一開口を含む第一仮想平面と、第二開口を含む第二仮想平面とが直交し、第一開口の中心を含まず第二開口の中心と直管部の中心線とを含む第三仮想平面が、第一仮想平面及び第二仮想平面の各々と直交していることを特徴とする。
本発明の第八の態様は、第一乃至第七の態様のいずれかにおいて、管部とフランジ部との接続部に補強部を有することを特徴とする。
本発明の第九の態様は、第一乃至第八の態様のいずれかにおいて、管部とフランジ部とが射出成形により一体成形されており、射出成形用金型のパーティング面が前記管部の中心線を含む平面上にあることを特徴とする。 In order to achieve the above-mentioned object, a first aspect of the present invention includes a pipe part, and a flange part that is disposed at one end of the pipe part so as to be inclined with respect to the pipe part. A flanged pipe joint having a flow path having two openings therein, wherein the first opening is disposed on the contact surface of the flange portion, the second opening is disposed on the other end of the pipe portion, The center line is inclined with respect to the first opening, and the tube portion and the flange portion are integrated.
A second aspect of the present invention is characterized in that, in the first aspect, the pipe portion has a curved portion.
According to a third aspect of the present invention, in the second aspect, the pipe part has a first straight pipe part and a second straight pipe part, and a flange part is connected to one end of the first straight pipe part. A curved portion is provided between the other end portion of the first straight pipe portion and one end portion of the second straight pipe portion.
According to a fourth aspect of the present invention, in the second aspect, the pipe part has a curved pipe part and a straight pipe part, and a flange part is connected to one end of the curved pipe part.
According to a fifth aspect of the present invention, in the fourth aspect, the center line of the curved pipe portion corresponds to one arc.
According to a sixth aspect of the present invention, in the third aspect, the first virtual plane including the first opening and the second virtual plane including the second opening are orthogonal to each other and do not include the center of the first opening. The third virtual plane including the center of the opening and the center line of the second straight pipe portion is orthogonal to each of the first virtual plane and the second virtual plane.
According to a seventh aspect of the present invention, in the fourth or fifth aspect, the first virtual plane including the first opening and the second virtual plane including the second opening are orthogonal to each other and include the center of the first opening. The third virtual plane including the center of the second opening and the center line of the straight pipe portion is orthogonal to each of the first virtual plane and the second virtual plane.
According to an eighth aspect of the present invention, in any one of the first to seventh aspects, a connecting portion between the pipe portion and the flange portion has a reinforcing portion.
According to a ninth aspect of the present invention, in any one of the first to eighth aspects, the tube portion and the flange portion are integrally formed by injection molding, and the parting surface of the injection mold is the tube portion. It lies on a plane including the center line of

本発明によるフランジ付き管継手は、管部とフランジ部とが一体型であるので、フランジ付き管継手の外部の二つの配管にそれぞれ接続される、第一開口と第二開口とを一つの配管部材で連通できる。そのため、複数の継手や管を組み合わせた場合と比較して施工が容易になるとともに、流体漏れを低減できる。また、第一開口から第二開口までの配管形状をコンパクトにできる。   In the flanged pipe joint according to the present invention, since the pipe part and the flange part are integrated, the first opening and the second opening respectively connected to the two pipes outside the flanged pipe joint are connected to one pipe. It can communicate with members. Therefore, the construction becomes easier and fluid leakage can be reduced as compared with the case where a plurality of joints and pipes are combined. Moreover, the piping shape from the first opening to the second opening can be made compact.

さらに、本発明によるフランジ付き管継手は、流路の中心線が第一開口に対して傾斜している。これにより、流路の管部に相当する部分と、流路のフランジ部に相当する部分と、を滑らかに接続でき、流体が管部からフランジ部に差し掛かるときに、流れが無理に曲げられることがなく、圧力損失を低減できる。   Further, in the flanged pipe joint according to the present invention, the center line of the flow path is inclined with respect to the first opening. As a result, the portion corresponding to the pipe portion of the flow path and the portion corresponding to the flange portion of the flow path can be smoothly connected, and the flow is forcibly bent when the fluid reaches the flange portion from the pipe portion. In this way, pressure loss can be reduced.

本発明の第一の実施形態に係るフランジ付き管継手の斜視図（ａ）及び他の斜視図（ｂ）である。It is the perspective view (a) and other perspective view (b) of a pipe joint with a flange concerning a first embodiment of the present invention. 本発明の第一の実施形態に係るフランジ付き管継手の使用状態を示す模式図である。It is a schematic diagram which shows the use condition of the pipe joint with a flange which concerns on 1st embodiment of this invention. 本発明の第二の実施形態に係るフランジ付き管継手の斜視図（ａ）及び他の斜視図（ｂ）である。It is the perspective view (a) and other perspective view (b) of the pipe joint with a flange which concern on 2nd embodiment of this invention. 本発明の第二の実施形態に係るフランジ付き管継手の平面図（ａ）及び正面図（ｂ）である。It is the top view (a) and front view (b) of the pipe joint with a flange which concern on 2nd embodiment of this invention. 本発明の第二の実施形態に係るフランジ付き管継手の第一開口と第二開口との位置関係を示す模式図である。It is a schematic diagram which shows the positional relationship of the 1st opening and 2nd opening of the pipe joint with a flange which concerns on 2nd embodiment of this invention. 本発明の第二の実施形態の変形例に係るフランジ付き管継手の斜視図（ａ）及び他の斜視図（ｂ）である。It is the perspective view (a) and other perspective view (b) of the pipe joint with a flange which concern on the modification of 2nd embodiment of this invention. 本発明の第三の実施形態に係るフランジ付き管継手の斜視図（ａ）及び他の斜視図（ｂ）である。It is the perspective view (a) and other perspective view (b) of the pipe joint with a flange which concern on 3rd embodiment of this invention. 本発明の第三の実施形態に係るフランジ付き管継手の平面図（ａ）及び正面図（ｂ）である。It is the top view (a) and front view (b) of the pipe joint with a flange which concern on 3rd embodiment of this invention. 本発明の第三の実施形態の変形例に係るフランジ付き管継手の斜視図（ａ）及び他の斜視図（ｂ）である。It is the perspective view (a) and other perspective view (b) of the pipe joint with a flange which concerns on the modification of 3rd embodiment of this invention.

（第一の実施形態）
以下、図面を参照しつつ本発明の第一の実施形態について説明する。図１は本発明の第一の実施形態に係るフランジ付き管継手の斜視図であり、図２は本発明の第一の実施形態に係るフランジ付き管継手の使用状態を示す模式図である。 (First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a flanged pipe joint according to the first embodiment of the present invention, and FIG. 2 is a schematic view showing a use state of the flanged pipe joint according to the first embodiment of the present invention.

図１に示すフランジ付き管継手１は、硬質ポリ塩化ビニル製であって、射出成形により製作される。フランジ付き管継手１は、円形の直管状の管部２と、管部２の一端に一体的に設けられたフランジ部３と、を備えている。ここで、管部２はフランジ部３に対して傾斜して設けられている。フランジ付き管継手１の一端（フランジ部３が外部の配管部材に当接する当接面７）には楕円形状の第一開口４が配設され、他端には円形状の第二開口５が配設され、内部には第一開口４と第二開口５とを接続する流路６が形成されている。なお、流路６は図１において破線で示されている。流路６は、管部２と同様に、フランジ部３に対して傾斜して設けられているので、流路６の中心線Ｌは第一開口４に対して傾斜して設けられている。   The flanged pipe joint 1 shown in FIG. 1 is made of hard polyvinyl chloride, and is manufactured by injection molding. The flanged pipe joint 1 includes a circular straight tubular pipe part 2 and a flange part 3 provided integrally at one end of the pipe part 2. Here, the pipe portion 2 is provided to be inclined with respect to the flange portion 3. An elliptical first opening 4 is provided at one end of the flanged pipe joint 1 (abutting surface 7 where the flange portion 3 abuts an external piping member), and a circular second opening 5 is provided at the other end. A flow path 6 that connects the first opening 4 and the second opening 5 is formed inside. In addition, the flow path 6 is shown with the broken line in FIG. Since the channel 6 is provided to be inclined with respect to the flange portion 3 similarly to the pipe portion 2, the center line L of the channel 6 is provided to be inclined with respect to the first opening 4.

次に、図２を参照して、第一の実施形態のフランジ付き管継手１の作用について説明する。図２において、符号８は薬液を貯蔵する薬液槽であり、薬液槽８の上部に配設された傾斜面にはフランジ継手９が設けられている。フランジ継手９には、ガスケット（図示せず）が配置され、さらにフランジ付き管継手１のフランジ部３がボルトにより接続されている。フランジ付き管継手１の第二開口５側の端部は、外部配管のソケット継手１０に接続されている。   Next, with reference to FIG. 2, the effect | action of the pipe joint 1 with a flange of 1st embodiment is demonstrated. In FIG. 2, reference numeral 8 denotes a chemical solution tank that stores a chemical solution, and a flange joint 9 is provided on an inclined surface disposed in the upper part of the chemical solution tank 8. The flange joint 9 is provided with a gasket (not shown), and the flange portion 3 of the flanged pipe joint 1 is connected by a bolt. The end of the flanged pipe joint 1 on the second opening 5 side is connected to a socket joint 10 of external piping.

フランジ付き管継手１は、管部２とフランジ部３とが一体型であるので、それぞれ外部配管に接続される第一開口４と第二開口５とを一つの配管部材で連通できる。そのため、複数の継手や管を組み合わせた場合と比較して施工が容易になるとともに、流体漏れを低減できる。また、第一開口４から第二開口５までの配管形状をコンパクトにできる。   In the flanged pipe joint 1, the pipe portion 2 and the flange portion 3 are integrated, so that the first opening 4 and the second opening 5 connected to the external pipe can be communicated with each other by one pipe member. Therefore, the construction becomes easier and fluid leakage can be reduced as compared with the case where a plurality of joints and pipes are combined. Further, the piping shape from the first opening 4 to the second opening 5 can be made compact.

また、フランジ付き管継手１は、流路６の中心線Ｌが第一開口４に対して傾斜している。これにより、管部２における流路６とフランジ部３における流路６とを滑らかに接続できる。従って、流体が管部２とフランジ部３とを接続する部分を流れるときに、流れを無理に曲げられることがなく、圧力損失を低減できる。   In the flanged pipe joint 1, the center line L of the flow path 6 is inclined with respect to the first opening 4. Thereby, the flow path 6 in the pipe part 2 and the flow path 6 in the flange part 3 can be smoothly connected. Therefore, when the fluid flows through the portion connecting the pipe portion 2 and the flange portion 3, the flow is not forcibly bent, and the pressure loss can be reduced.

また、第一開口４の中心点と第二開口５の中心点は同一中心線上に位置している。しかしながら、第一開口４の中心線と第二開口５の中心線とは互いに傾斜しており、一致していない。第一開口４と第二開口５とがこのような位置関係にあるときは、複数の継手や管を組み合わせた場合と比較して、第一開口４から第二開口５までの配管形状をコンパクトにできる。また、第一の実施形態では、管部２が直管であるが、曲管にしてもよい。施工現場の配管条件に応じて、所望の角度や曲率の曲部を管部２に形成できる。   The center point of the first opening 4 and the center point of the second opening 5 are located on the same center line. However, the center line of the first opening 4 and the center line of the second opening 5 are inclined with each other and do not coincide with each other. When the first opening 4 and the second opening 5 are in such a positional relationship, the piping shape from the first opening 4 to the second opening 5 is compact compared to the case where a plurality of joints and pipes are combined. Can be. Moreover, in 1st embodiment, although the pipe part 2 is a straight pipe, you may make it a curved pipe. A curved part having a desired angle and curvature can be formed in the pipe part 2 according to the piping conditions at the construction site.

（第二の実施形態）
さらに図３〜図５を参照して、本発明の第二の実施形態に係るフランジ付き管継手について説明する。図３は、本発明の第二の実施形態に係るフランジ付き管継手の斜視図であり、図４は、本発明の第二の実施形態に係るフランジ付き管継手の平面図および正面図であり、図５は、本発明の第二の実施形態に係るフランジ付き管継手の第一開口と第二開口との位置関係を示す模式図である。なお、図１、図２と実質的に同じ箇所には同一の符号を付す。 (Second embodiment)
Furthermore, with reference to FIGS. 3-5, the flanged pipe joint which concerns on 2nd embodiment of this invention is demonstrated. FIG. 3 is a perspective view of a flanged pipe joint according to the second embodiment of the present invention, and FIG. 4 is a plan view and a front view of the flanged pipe joint according to the second embodiment of the present invention. FIG. 5 is a schematic diagram showing the positional relationship between the first opening and the second opening of the flanged pipe joint according to the second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the location substantially the same as FIG. 1, FIG.

図３〜図５に示すフランジ付き管継手１１は、硬質ポリ塩化ビニル製であって、射出成形により製作される。フランジ付き管継手１１は、曲部１２を有する管部２と、管部２の一端に一体的に設けられたフランジ部３と、を備えている。管部２は、第一直管部１３と、第二直管部１４と、を有している。第一直管部１３は、円形の直管状で外径および内径が一端側（第一開口４側）から他端側（第二開口５側）にかけて漸次縮径している。第二直管部１４は、円形の直管状で外径および内径が均一であり、第一直管部１３よりも長い。また、第二直管部１４の外径と内径は、第一直管部１３の他端側と同じ外径および内径である。フランジ付き管継手１１は、第一直管部１３と第二直管部１４との間に曲部１２を有する。曲部１２は、概ね直角である。また、第一直管部１３はフランジ部３に対して傾斜している。フランジ付き管継手１１は、配管応力への耐久性を向上させるために、第一直管部１３の肉厚が他端近傍部からフランジ部３にかけて漸次厚くなるように、第一直管部１３とフランジ部３との接続部に補強部１５を有する。また、フランジ付き管継手１１の一端面には、楕円形状の第一開口４が配設されており、他端面には、円形状の第二開口５が配設されており、内部には、第一開口４と第二開口５とを接続する流路６が配設されている。流路６は、管部２と同様に、フランジ部３に対して傾斜して設けられている。すなわち、流路６の中心線Ｌは第一開口４に対して傾斜して設けられている。   The flanged pipe joint 11 shown in FIGS. 3 to 5 is made of hard polyvinyl chloride, and is manufactured by injection molding. The flanged pipe joint 11 includes a pipe part 2 having a curved part 12, and a flange part 3 provided integrally at one end of the pipe part 2. The pipe part 2 has a first straight pipe part 13 and a second straight pipe part 14. The first straight pipe portion 13 is a circular straight tube, and the outer diameter and inner diameter are gradually reduced from one end side (first opening 4 side) to the other end side (second opening 5 side). The second straight pipe portion 14 is a circular straight tube having a uniform outer diameter and inner diameter, and is longer than the first straight pipe portion 13. Further, the outer diameter and inner diameter of the second straight pipe portion 14 are the same outer diameter and inner diameter as the other end side of the first straight pipe portion 13. The flanged pipe joint 11 has a curved part 12 between the first straight pipe part 13 and the second straight pipe part 14. The bend 12 is generally perpendicular. Further, the first straight pipe portion 13 is inclined with respect to the flange portion 3. In order to improve durability against piping stress, the flanged pipe joint 11 is formed so that the thickness of the first straight pipe portion 13 gradually increases from the vicinity of the other end to the flange portion 3. A reinforcing portion 15 is provided at a connection portion between the flange portion 3 and the flange portion 3. In addition, an elliptical first opening 4 is disposed on one end surface of the flanged pipe joint 11, and a circular second opening 5 is disposed on the other end surface. A flow path 6 that connects the first opening 4 and the second opening 5 is disposed. The flow path 6 is provided so as to be inclined with respect to the flange part 3 in the same manner as the pipe part 2. That is, the center line L of the flow path 6 is inclined with respect to the first opening 4.

このように、フランジ付き管継手１１の管部２は、第一直管部１３と第二直管部１４とで外径や内径の大きさが異なっていたり、第一直管部１３の外径と内径が一端側から他端側にかけて漸次縮径していたりしている。管部２と同じ形状を複数の継手や管を組み合わせて形成しようとすると、異径継手を使用する必要があり、管部２の内径が段階的に急激に変化するので、圧力損失が生じやすくなる。フランジ付き管継手１１は、第一直管部１３と第二直管部１４とが一体的に成形されるとともに、第一直管部１３の外径および内径の大きさを漸次変化させているので、圧力損失の発生を低減できる。ここで、第一直管部１３のような、外径と内径とが一端側から他端側にかけて漸次縮径する形状は、射出成形などにより形成できる。   As described above, the pipe portion 2 of the flanged pipe joint 11 has different outer diameters and inner diameters between the first straight pipe portion 13 and the second straight pipe portion 14, The diameter and the inner diameter are gradually reduced from one end side to the other end side. If it is going to form the same shape as pipe part 2 combining a plurality of joints and pipes, it is necessary to use a different diameter joint, and since the inner diameter of pipe part 2 changes rapidly in steps, pressure loss is likely to occur. Become. In the flanged pipe joint 11, the first straight pipe portion 13 and the second straight pipe portion 14 are integrally formed, and the outer diameter and the inner diameter of the first straight pipe portion 13 are gradually changed. Therefore, the generation of pressure loss can be reduced. Here, a shape in which the outer diameter and the inner diameter gradually decrease from one end side to the other end side, such as the first straight pipe portion 13, can be formed by injection molding or the like.

次に、図５を参照して、第二の実施形態に係るフランジ付き管継手１１の第一開口４と第二開口５との位置関係について説明する。フランジ付き管継手１１の第一開口４は外部配管のフランジ継手９に接続され、第二開口５は外部配管のソケット継手１０に接続されている。このとき、第一開口４は第一仮想平面Ｓ１上に配設され、第二開口５は第二仮想平面Ｓ２上に配設され、第一仮想平面Ｓ１と第二仮想平面Ｓ２は互いに直交している。そして、第二開口５の中心点Ｐ２と第二直管部１４の中心線Ｌ２は第三仮想平面Ｓ３上に有り、第三仮想平面Ｓ３は第一仮想平面Ｓ１と第二仮想平面Ｓ２との各々に直交している。第一開口４の中心点Ｐ１は第三仮想平面Ｓ３上に無い。   Next, the positional relationship between the first opening 4 and the second opening 5 of the flanged pipe joint 11 according to the second embodiment will be described with reference to FIG. The 1st opening 4 of the pipe joint 11 with a flange is connected to the flange joint 9 of external piping, and the 2nd opening 5 is connected to the socket joint 10 of external piping. At this time, the first opening 4 is disposed on the first virtual plane S1, the second opening 5 is disposed on the second virtual plane S2, and the first virtual plane S1 and the second virtual plane S2 are orthogonal to each other. ing. The center point P2 of the second opening 5 and the center line L2 of the second straight pipe portion 14 are on the third virtual plane S3, and the third virtual plane S3 is between the first virtual plane S1 and the second virtual plane S2. They are orthogonal to each other. The center point P1 of the first opening 4 is not on the third virtual plane S3.

第一開口４と第二開口５とが、このような位置関係にあるときは、複数の継手や管を組み合わせてフランジ継手９からソケット継手１０までを連通させると、配管形状が大きくなり易い。特に、フランジ継手９とソケット継手１０との間隔が狭いと、その間隔に適した配管を組むことができないことがある。フランジ付き管継手１１は、曲部１２を有する管部２と、管部２に対して傾斜しているフランジ部３とが一体型であるので、フランジ継手９とソケット継手１０とを一つの配管部材で連通できる。そのため、複数の継手や管を組み合わせた場合と比較して施工が容易になるとともに、流体漏れを低減できる。また、第一開口４から第二開口５までの配管形状をコンパクトにできる。   When the first opening 4 and the second opening 5 are in such a positional relationship, if a plurality of joints and pipes are combined to communicate from the flange joint 9 to the socket joint 10, the shape of the pipe tends to increase. In particular, if the gap between the flange joint 9 and the socket joint 10 is narrow, piping suitable for the gap may not be assembled. In the flanged pipe joint 11, the pipe part 2 having the curved part 12 and the flange part 3 inclined with respect to the pipe part 2 are integrated, so that the flange joint 9 and the socket joint 10 are connected to one pipe. It can communicate with members. Therefore, the construction becomes easier and fluid leakage can be reduced as compared with the case where a plurality of joints and pipes are combined. Further, the piping shape from the first opening 4 to the second opening 5 can be made compact.

また、フランジ付き管継手１１は、管部２が二つの直管部（第一直管部１３、第二直管部１４）で構成され、曲部１２が一つであることから、射出成形で製作するときに、金型の構造を単純かつ簡単な構造にすることができる。また、フランジ付き管継手１１のパーティングラインは、第一直管部１３と第二直管部１４との外周面と、第一直管部１３の中心線Ｌ１と第二直管部１４の中心線Ｌ２とをそれぞれ含む平面との交線上に、有するとよい（すなわち、フランジ付き管継手１１の金型のパーティング面が、第一直管部１３の中心線Ｌ１と第二直管部１４の中心線Ｌ２とをそれぞれ含む平面（図４ではＡ−Ａ断面）上にあるとよい。）。このようにすると、フランジ部３が管部２の端部に管部２に対して傾斜して配設されていても、金型の構造を単純かつ簡単な構造にできる。なお、第一直管部１３の中心線Ｌ１と第二直管部１４の中心線Ｌ２とをそれぞれ含む平面とは、厳密に平坦な面でなくてもよく、概ね平面であればよい。   In addition, the flanged pipe joint 11 is formed by injection molding because the pipe part 2 is composed of two straight pipe parts (first straight pipe part 13 and second straight pipe part 14), and the curved part 12 is one. When manufacturing with, the structure of the mold can be made simple and easy. The parting line of the flanged pipe joint 11 includes the outer peripheral surfaces of the first straight pipe portion 13 and the second straight pipe portion 14, the center line L1 of the first straight pipe portion 13, and the second straight pipe portion 14. It is good to have on the line of intersection with the plane which includes each of the center lines L2 (that is, the parting surface of the mold of the flanged pipe joint 11 is the center line L1 of the first straight pipe part 13 and the second straight pipe part. And 14 center lines L2 (which are preferably on the plane AA in FIG. 4). In this way, even if the flange portion 3 is disposed at the end portion of the tube portion 2 so as to be inclined with respect to the tube portion 2, the structure of the mold can be made simple and simple. Note that the plane including the center line L1 of the first straight pipe portion 13 and the center line L2 of the second straight pipe portion 14 may not be a strictly flat surface, but may be a substantially flat surface.

（第二の実施形態の変形例）
図６は、本発明の第二の実施形態の変形例に係るフランジ付き管継手１６の斜視図及び他の斜視図である。当該変形例では、フランジ付き管継手１６の曲部１２が鈍角である。曲部１２を鈍角にすることによって、曲部１２で生じる圧力損失を低減できる。なお、第二の実施形態の変形例における第一開口４と第二開口５との位置関係は、第二の実施形態における第一開口４と第二開口５との位置関係と同様であるので説明を省略する。第二の実施形態では曲部１２が概ね直角であり、第二の実施形態の変形例では曲部１２が鈍角であるが、曲部１２は鋭角でもよい。すなわち、曲部１２の角度は、フランジ付き管継手１１によって接続される外部配管の状況に応じて自由に設計できる。 (Modification of the second embodiment)
FIG. 6 is a perspective view and another perspective view of a flanged pipe joint 16 according to a modification of the second embodiment of the present invention. In the said modification, the curved part 12 of the pipe joint 16 with a flange is an obtuse angle. By making the curved part 12 an obtuse angle, the pressure loss produced in the curved part 12 can be reduced. Note that the positional relationship between the first opening 4 and the second opening 5 in the modification of the second embodiment is the same as the positional relationship between the first opening 4 and the second opening 5 in the second embodiment. Description is omitted. In the second embodiment, the curved portion 12 is substantially perpendicular, and in the modified example of the second embodiment, the curved portion 12 has an obtuse angle, but the curved portion 12 may be an acute angle. That is, the angle of the curved portion 12 can be freely designed according to the situation of the external piping connected by the flanged pipe joint 11.

（第三の実施形態）
続いて図７〜図８を参照して、本発明の第三の実施形態に係るフランジ付き管継手２１について説明する。図７は、本発明の第三の実施形態に係るフランジ付き管継手の斜視図である。図８は、本発明の第三の実施形態に係るフランジ付き管継手の平面図および正面図である。なお、図１、図２と実質的に同じ箇所には同一の符号を付す。ここでは、第二の実施形態との相違点を主に説明する。 (Third embodiment)
Subsequently, a flanged pipe joint 21 according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a perspective view of a flanged pipe joint according to the third embodiment of the present invention. FIG. 8 is a plan view and a front view of the flanged pipe joint according to the third embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the location substantially the same as FIG. 1, FIG. Here, differences from the second embodiment will be mainly described.

図７〜図８に示すように、フランジ付き管継手２１は、曲部２２を有する管部２と、フランジ部３と、を備えている。管部２は、断面形状が円形であって、中心線が一つの円弧に対応する曲管状の曲管部２３と、曲管部２３よりも短く、断面形状が円形で縮径部２５と短管部２６とを有する直管状の直管部２４と、を有する。縮径部２５は、曲管部２３側に配設されている。短管部２６は、均一の外径および内径を有する短管で配設されている。また、曲管部２３はフランジ部３に対して傾斜して設けられている。   As shown in FIGS. 7 to 8, the flanged pipe joint 21 includes a pipe part 2 having a curved part 22 and a flange part 3. The pipe part 2 has a circular cross-sectional shape, a curved pipe part 23 having a center line corresponding to one circular arc, and is shorter than the curved pipe part 23, and has a circular cross-sectional shape and a short diameter part 25. A straight tubular portion 24 having a tubular portion 26. The reduced diameter portion 25 is disposed on the bent tube portion 23 side. The short pipe portion 26 is disposed as a short pipe having a uniform outer diameter and inner diameter. Further, the curved pipe portion 23 is provided to be inclined with respect to the flange portion 3.

フランジ付き管継手２１の内部には、第一開口４と第二開口５とを有する流路６が配設されている。流路６は、管部２と同様に、フランジ部３に対して傾斜して設けられている。第三の実施形態における第一開口４と第二開口５との位置関係は、第二の実施形態における第一開口４と第二開口５との位置関係と同様であるので、説明を省略する。   A flow path 6 having a first opening 4 and a second opening 5 is disposed inside the flanged pipe joint 21. The flow path 6 is provided so as to be inclined with respect to the flange part 3 in the same manner as the pipe part 2. Since the positional relationship between the first opening 4 and the second opening 5 in the third embodiment is the same as the positional relationship between the first opening 4 and the second opening 5 in the second embodiment, the description thereof is omitted. .

第三の実施形態に係るフランジ付き管継手２１では、管部２に曲管部２３を備えるとともに、流路６の曲管部２３に相当する部分（流路６ａ）を流路６の直管部２４に相当する部分（流路６ｂおよび流路６ｃ）よりも殆どの部分で大径にしている。流路６ａを流路６ｂおよび流路６ｃよりも大径にすることによって、第一開口４から第二開口５に流体を流すときに、圧力損失を小さくできる。フランジ付き管継手２１の流路６は射出成形金型のスライドコアによって形成される。流路６ａは、曲管部２３と同様に、流路６ａの中心線が一つの円弧に対応する。このようにすることによって、流路６ａが曲管であっても射出成形によって形成できる。また、流路６ａと流路６ｂは同じスライドコアによって形成される。流路６ｂは、第一開口４側から第二開口５側にかけて縮径された形状であり、長さも短いので、流路６ｂを形成するスライドコアを流路６ａに干渉させることなく引き抜くことができる。また、第三の実施形態において、曲管部２３の中心線の半径の大きさや、直管部２４の長さは自由に設計できる。例えば、直管部２４は曲管部２３よりも短いが、直管部２４を曲管部２３よりも長くできる。その他のフランジ付き管継手２１の作用は、第二の実施形態と同様なので説明を省略する。   In the flanged pipe joint 21 according to the third embodiment, the pipe part 2 is provided with the curved pipe part 23, and a portion (flow path 6 a) corresponding to the curved pipe part 23 of the flow path 6 is a straight pipe of the flow path 6. The diameter is almost larger than the portion corresponding to the portion 24 (the channel 6b and the channel 6c). By making the flow path 6a larger in diameter than the flow paths 6b and 6c, the pressure loss can be reduced when the fluid flows from the first opening 4 to the second opening 5. The flow path 6 of the flanged pipe joint 21 is formed by a slide core of an injection mold. In the flow path 6a, the center line of the flow path 6a corresponds to one arc as in the curved pipe portion 23. By doing in this way, even if the flow path 6a is a curved pipe, it can be formed by injection molding. The flow path 6a and the flow path 6b are formed by the same slide core. The flow path 6b has a shape reduced in diameter from the first opening 4 side to the second opening 5 side, and has a short length, so that the slide core forming the flow path 6b can be pulled out without interfering with the flow path 6a. it can. Moreover, in 3rd embodiment, the magnitude | size of the radius of the centerline of the curved pipe part 23 and the length of the straight pipe part 24 can be designed freely. For example, the straight pipe portion 24 is shorter than the curved pipe portion 23, but the straight pipe portion 24 can be longer than the curved pipe portion 23. Since the operation of the other flanged pipe joint 21 is the same as that of the second embodiment, the description thereof is omitted.

（第三の実施形態の変形例）
図９は、本発明の第三の実施形態の変形例に係るフランジ付き管継手２１の斜視図及び他の斜視図である。当該変形例では、フランジ付き管継手２７の管部２が、内径が漸次縮径する曲管部２８と、外径および内径がそれぞれ均一な径を有する直管部２９と、を含む。曲管部２８はその内径が第一開口４から第二開口５に向かって漸次縮径されている。また、直管部２９は、その内径および外径が曲管部２８の第二開口５側端面の外径および内径とそれぞれ同じ径を有する。なお、第三の実施形態の変形例における第一開口４と第二開口５との位置関係は、第二の実施形態における第一開口４と第二開口５との位置関係と同様であるので、説明を省略する。 (Modification of the third embodiment)
FIG. 9 is a perspective view and another perspective view of a flanged pipe joint 21 according to a modification of the third embodiment of the present invention. In the modification, the pipe part 2 of the flanged pipe joint 27 includes a curved pipe part 28 whose inner diameter gradually decreases, and a straight pipe part 29 having an outer diameter and an inner diameter that are uniform. The inner diameter of the curved pipe portion 28 is gradually reduced from the first opening 4 toward the second opening 5. Further, the straight pipe portion 29 has the same inner diameter and outer diameter as the outer diameter and inner diameter of the end surface on the second opening 5 side of the curved pipe portion 28. Note that the positional relationship between the first opening 4 and the second opening 5 in the modification of the third embodiment is the same as the positional relationship between the first opening 4 and the second opening 5 in the second embodiment. The description is omitted.

第一の実施形態乃至第三の実施形態において、いずれも管部２の一端部のみにフランジ部３が配設されているが、管部２の他端部にもフランジ継手やソケット継手などの各種の継手を配置できる。また、第一の実施形態乃至第三の実施形態において、第二開口５と流路６の中心線Ｌとはいずれも直交しているが、第二開口５と流路６の中心線Ｌとの角度は自由に設計できる。   In each of the first to third embodiments, the flange portion 3 is disposed only at one end portion of the pipe portion 2, but a flange joint or a socket joint is also provided at the other end portion of the pipe portion 2. Various joints can be arranged. Further, in the first to third embodiments, the second opening 5 and the center line L of the flow path 6 are orthogonal to each other, but the second opening 5 and the center line L of the flow path 6 are The angle of can be designed freely.

本発明において、フランジ付き管継手１、１１、２１の材質は硬質ポリ塩化ビニルに制限されることはなく、フランジ付き管継手１、１１、２１の使用条件や流体の性質に応じて自由に選択できる。例えば、ポリプロピレンやポリフッ化ビニリデン、ポリテトラフルオロエチレンなどの樹脂、鉄やアルミニウム、ステンレス鋼などの金属、ガラス、陶器などが好適な材質として挙げられる。   In the present invention, the material of the flanged pipe joints 1, 11, 21 is not limited to rigid polyvinyl chloride, and can be freely selected according to the use conditions of the flanged pipe joints 1, 11, 21 and the nature of the fluid. it can. Examples of suitable materials include resins such as polypropylene, polyvinylidene fluoride, and polytetrafluoroethylene, metals such as iron, aluminum, and stainless steel, glass, and ceramics.

本発明において、フランジ付き管継手１、１１、２１の製造方法は射出成形に制限されることはなく、フランジ付き管継手１、１１、２１の形状や材質などに応じて自由に選択できる。例えば、圧縮成形や鋳造、切削加工、三次元プリンタによる成形などが好適な製造方法として挙げられる。   In the present invention, the manufacturing method of the flanged pipe joints 1, 11, and 21 is not limited to injection molding, and can be freely selected according to the shape and material of the flanged pipe joints 1, 11, and 21. Examples of suitable manufacturing methods include compression molding, casting, cutting, and molding with a three-dimensional printer.

本発明の好ましい実施形態は上記のとおりであるが、本発明はそれらのみに限定されるものではない。本発明の趣旨と範囲から逸脱することのない様々な実施形態が他になされる。さらに、本実施形態において述べられる作用および効果は一例であり、本発明を限定するものではない。   Preferred embodiments of the present invention are as described above, but the present invention is not limited to them. Various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, the operations and effects described in this embodiment are merely examples, and do not limit the present invention.

１、１１、１６、２１、２７ フランジ付き管継手
２ 管部
３ フランジ部
４ 第一開口
５ 第二開口
６ 流路
７ 当接面
８ 薬液槽
９ フランジ継手
１０ ソケット継手
１２、２２ 曲部
１３ 第一直管部
１４ 第二直管部
１５ 補強部
２３、２８ 曲管部
２４、２９ 直管部
２５ 縮径部
２６ 短管部
Ｌ 中心線
Ｌ１ 第一直管部の中心線
Ｌ２ 第二直管部の中心線
Ｓ１ 第一仮想平面
Ｓ２ 第二仮想平面
Ｓ３ 第三仮想平面
Ｐ１ 第一開口の中心点
Ｐ２ 第二開口の中心点 1, 11, 16, 21, 27 Flanged pipe joint 2 Pipe part 3 Flange part 4 First opening 5 Second opening 6 Flow path 7 Contact surface 8 Chemical solution tank 9 Flange joint 10 Socket joint 12, 22 Curved part 13 First Straight pipe part 14 Second straight pipe part 15 Reinforcement part 23, 28 Curved pipe part 24, 29 Straight pipe part 25 Reduced diameter part 26 Short pipe part L Center line L1 Center line of the first straight pipe part L2 Second straight pipe Center line S1 first virtual plane S2 second virtual plane S3 third virtual plane P1 first opening center point P2 second opening center point

Claims (9)

管部と、前記管部の一端に前記管部に対して傾斜して配設されるフランジ部と、を備え、第一開口と第二開口とを有する流路を内部に備えるフランジ付き管継手であって、
前記第一開口がフランジ部の当接面に配設され、前記第二開口が管部の他端に配設され、前記流路の中心線が前記第一開口に対して傾斜しており、前記管部と前記フランジ部とが一体型であることを特徴とするフランジ付き管継手。 A flanged pipe joint comprising: a pipe part; and a flange part disposed at one end of the pipe part so as to be inclined with respect to the pipe part, and having a flow path having a first opening and a second opening therein Because
The first opening is disposed on the contact surface of the flange portion, the second opening is disposed on the other end of the pipe portion, and the center line of the flow path is inclined with respect to the first opening; The pipe joint with a flange characterized by the above-mentioned. 前記管部が曲部を有することを特徴とする請求項１に記載のフランジ付き管継手。   The flanged pipe joint according to claim 1, wherein the pipe part has a curved part. 前記管部が第一直管部と第二直管部とを有し、前記第一直管部の一端部に前記フランジ部が接続されており、前記第一直管部の他端部と前記第二直管部の一端部との間に前記曲部を有することを特徴とする請求項２に記載のフランジ付き管継手。   The pipe part has a first straight pipe part and a second straight pipe part, the flange part is connected to one end part of the first straight pipe part, and the other end part of the first straight pipe part The flanged pipe joint according to claim 2, wherein the bent portion is provided between one end portion of the second straight pipe portion. 前記管部が曲管部と直管部とを有し、前記曲管部の一端部に前記フランジ部が接続されていることを特徴とする請求項２に記載のフランジ付き管継手。   The flanged pipe joint according to claim 2, wherein the pipe part has a curved pipe part and a straight pipe part, and the flange part is connected to one end of the curved pipe part. 前記曲管部の中心線が一つの円弧に対応することを特徴とする請求項４に記載のフランジ付き管継手。   The flanged pipe joint according to claim 4, wherein a center line of the bent pipe portion corresponds to one arc. 前記第一開口を含む第一仮想平面と、前記第二開口を含む第二仮想平面とが直交し、前記第一開口の中心を含まず前記第二開口の中心と前記第二直管部の中心線とを含む第三仮想平面が、前記第一仮想平面及び第二仮想平面の各々と直交していることを特徴とする請求項３に記載のフランジ付き管継手。   The first virtual plane including the first opening and the second virtual plane including the second opening are orthogonal to each other, and does not include the center of the first opening and the center of the second opening and the second straight pipe portion. The flanged pipe joint according to claim 3, wherein a third virtual plane including a center line is orthogonal to each of the first virtual plane and the second virtual plane. 前記第一開口を含む第一仮想平面と、前記第二開口を含む第二仮想平面とが直交し、前記第一開口の中心を含まず前記第二開口の中心と前記直管部の中心線とを含む第三仮想平面が、前記第一仮想平面及び第二仮想平面の各々と直交していることを特徴とする請求項４または請求項５に記載のフランジ付き管継手。   The first virtual plane including the first opening and the second virtual plane including the second opening are orthogonal to each other, do not include the center of the first opening, and the center line of the second opening and the straight pipe portion. 6. The flanged pipe joint according to claim 4, wherein a third virtual plane including the second virtual plane is orthogonal to each of the first virtual plane and the second virtual plane. 前記管部と前記フランジ部との接続部に補強部を有することを特徴とする請求項１乃至７のいずれか一項に記載のフランジ付き管継手。   The flanged pipe joint according to any one of claims 1 to 7, further comprising a reinforcing part at a connection part between the pipe part and the flange part. 前記管部と前記フランジ部とが射出成形により一体成形されており、射出成形用金型のパーティング面が前記管部の中心線を含む平面上にあることを特徴とする請求項１乃至８のいずれか一項に記載のフランジ付き管継手。   9. The pipe part and the flange part are integrally formed by injection molding, and a parting surface of an injection mold is on a plane including a center line of the pipe part. A flanged pipe joint according to any one of the above.
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