JPH0415391A - Flow passage structure - Google Patents

Abstract

PURPOSE:To accelerate the mixing of two kinds of fluid in a convergence pipe by connecting the axis centers so that at least one between the axis centers cross with the inner wall surface of the convergence pipe in a noncrossing state. CONSTITUTION:Pipes 1 and 2 are connected with a convergence pipe 3 so that a noncrossing state in which the axis centers P1 and P2 are in a torsion position relation is generated, and the axis centers P1 and P2 are connected so as to cross with the inner wall surface 4 of the convergence pipe 3. Further, the inner wall surface 4 is formed to a guide surface 5 for generating a turning force along the stream direction of the convergence pipe 3 on the fluid supplied from the pipes 1 and 2 which collide with the inner wall surface 4. Accordingly, even if the primary pressure of two kinds of fluid is equal or a difference is generated, two kinds of fluid can be mixed uniformly with the flow rate based on the primary pressure, and the mixed fluid having a stable flow rate can be supplied.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、管と管とを合流管に接続して合流させる流路
構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a flow path structure for connecting pipes to a merging pipe and merging them.

〔従来の技術］ 従来、この種の流路構造としては、第４図に示すように
、Ｔ型、又は、Ｙ型の継ぎ手構造を用いて管と管とを接
続するものがあった。[Prior Art] Conventionally, as shown in FIG. 4, this type of channel structure has been known to connect pipes using a T-type or Y-type joint structure.

例えば、上水道において用いられるような、水と湯を混
合して供給する混合湯栓では、前記Ｔ型の継ぎ手構造を
採っており、水と湯の搬送管の接合部には、夫々の管か
らの速度水頭を緩衝させる当て板（６）を設けているも
のがあった。For example, a mixing faucet that mixes and supplies water and hot water, such as those used in waterworks, adopts the T-shaped joint structure described above, and at the joint of the water and hot water conveying pipes, there is a connection from each pipe. Some were equipped with a backing plate (6) to buffer the velocity water head.

［発明が解決しようとする課題］ しかし、上記従来技術による流路構造にあっては、夫々
の管からの流体が合流する箇所で、流体同士が前記当て
板（６）以外の箇所で必ず緩衝するような構成であった
ために、緩衝による乱流が生じて合流方向への流れが不
安定となり、その結果、夫々の管の１次圧にも影響を及
ぼし、それがさらに合流方向への流れを不安定にすると
いう欠点があった。[Problems to be Solved by the Invention] However, in the flow path structure according to the above-mentioned prior art, at the point where the fluids from the respective pipes join, the fluids are always buffered at a point other than the backing plate (6). As a result, turbulent flow occurs due to buffering, making the flow in the merging direction unstable.As a result, the primary pressure of each pipe is also affected, which further increases the flow in the merging direction. This had the disadvantage of making it unstable.

例えば、上述の混合湯栓では、合流の結果供給される温
水の流量が変動したり、水と湯の混合比率の変化により
温度が変動したり、水と湯の不十分な混合により温度に
むらが生じたりするといった欠点があった。For example, in the above-mentioned mixing tap, the flow rate of hot water supplied may fluctuate as a result of merging, the temperature may fluctuate due to changes in the mixing ratio of water and hot water, or the temperature may vary due to insufficient mixing of water and hot water. There were drawbacks such as the occurrence of

本発明の目的は上述した従来欠点を解消する点にある。An object of the present invention is to eliminate the above-mentioned conventional drawbacks.

〔課題を解決するための手段〕[Means to solve the problem]

この目的を達成するため、本発明による流路構造の特徴
構成は、前記管夫々の軸芯を非交差状態で、且つ、前記
軸芯の少なくとも一方が前記合流管の内壁面と交差する
ように接続して構成してあることにある。In order to achieve this object, the characteristic configuration of the flow path structure according to the present invention is such that the axes of the respective pipes do not intersect, and at least one of the axes intersects with the inner wall surface of the merging pipe. It is because it is connected and configured.

前記内壁面を、前記内壁面に当たる少なくとも一方の管
からの流体に、前記合流管の流れ方向に沿って旋回力を
生じさせる案内面に構成してあることが好ましい。Preferably, the inner wall surface is configured as a guide surface that generates a swirling force along the flow direction of the merging pipe in the fluid from at least one of the pipes that comes into contact with the inner wall surface.

〔作　用〕[For production]

つまり、管と管とを合流管に接続するにあたり、管夫々
の軸芯を非交差状態で接続することで、夫々の管からの
流体が合流する箇所で流体同士が緩衝することを無くし
て、一方の流体の１次圧が他方の流体の１次圧に影響を
及ぼすことを避けると供に、前記軸芯の少なくとも一方
が前記合流管の内壁面と交差するように接続することで
、その内壁面に流体を衝突させて、前記合流管内での二
つの流体の混合を促進させるのである。In other words, when connecting pipes to a converging pipe, by connecting the axes of each pipe in a non-crossing state, it is possible to eliminate buffering between the fluids at the point where the fluids from each pipe join, The primary pressure of one fluid is prevented from affecting the primary pressure of the other fluid, and at least one of the axes is connected so as to intersect with the inner wall surface of the merging pipe. The fluid collides with the inner wall surface to promote mixing of the two fluids within the merging pipe.

更に、前記内壁面を、前記内壁面に衝突する流体に、前
記合流管の流れ方向に沿って旋回力を与えるように案内
する案内面に構成することで、その案内面に沿って流体
が旋回して、流体同士の攪拌を促進するのである。Furthermore, by configuring the inner wall surface as a guide surface that guides the fluid colliding with the inner wall surface so as to apply a swirling force along the flow direction of the merging pipe, the fluid swirls along the guide surface. This promotes agitation between fluids.

（発明の効果〕 従って、本発明による流路構造によれば、管からの流体
を合流するにあたり、二つの流体の１次圧が等しい場合
でも差がある場合でも、それぞれの１次圧に基づく流量
で均一に混合され、しかも、安定した流量の混合流体を
供給することが可能となった。(Effects of the Invention) Therefore, according to the flow path structure according to the present invention, when merging fluids from the pipes, regardless of whether the primary pressures of the two fluids are equal or different, the flow path structure is based on the primary pressure of each fluid. It has become possible to supply a mixed fluid that is uniformly mixed at a flow rate and has a stable flow rate.

［実施例］ 以下に本発明の実施例を図面に基づいて説明する。[Example] Embodiments of the present invention will be described below based on the drawings.

第１図（イ）乃至（ニ）に示すように、水を搬送する円
筒の管（１）と湯を搬送する円筒の管（２）とを、断面
が長円形状で短径が前記管（１）、　（２）の径より大
なる円筒の合流管（３）に接続して流路構造を構成して
ある。As shown in FIGS. 1(a) to (d), a cylindrical pipe (1) for transporting water and a cylindrical pipe (2) for transporting hot water are connected to each other, with an oval cross section and a short diameter of the pipe. It is connected to a cylindrical confluence pipe (3) whose diameter is larger than that of (1) and (2) to form a flow path structure.

夫々の管（１）、（２＞の上流側には流量を制御する弁
体（図示せず）を設けである。A valve body (not shown) for controlling the flow rate is provided on the upstream side of each of the pipes (1) and (2>).

前記管（１）、（２）は、夫々の軸芯（ＰＩ）　、　（
Ｐ２）がねしれの位！関係である非交差状態となるよう
に前記合流管（３）に接続してあり、且つ、前記軸芯（
ＰＬ）　、　（Ｐ２＞が前記合流管（３）の内壁面（４
）と交差するように接続してある。The tubes (1) and (2) have their respective axes (PI), (
P2) It’s the best! It is connected to the merging pipe (3) so as to be in a non-intersecting state, and the axis (
PL), (P2> is the inner wall surface (4) of the confluence pipe (3)
) are connected to intersect.

前記合流管（３）は、接続部での断面形状が長円形で下
流側での断面形状が円形で、下流側に先細りに形成して
ある。The merging pipe (3) has an oval cross-sectional shape at the connecting portion, a circular cross-sectional shape at the downstream side, and is tapered toward the downstream side.

つまり、前記管（１）　、　（２）を前記合流管（３）
へ接続するに、前記管（１）、（２）を接続部の縦断面
形状が長円形をなすその長径方向に、互いに重なること
がないようにずらせて配置してあり、それぞれの１次圧
が、前記合流管（３）の下流方向に作用するようにして
、互いの１次圧に作用することがないようにしてある。In other words, the pipes (1) and (2) are connected to the confluence pipe (3).
In order to connect the pipes (1) and (2) to each other, the pipes (1) and (2) are arranged so as to be staggered in the long diameter direction of the connecting part, which has an oval longitudinal cross-sectional shape, so as not to overlap with each other. However, they act in the downstream direction of the merging pipe (3) so that they do not act on each other's primary pressures.

更に、前記内壁面（４）を、前記内壁面（４）に当たる
前記管（１）　、　（２）からの流体に、前記合流管（
３）の流れ方向に沿って旋回力を生じさせる案内面（５
）に構成してある。Furthermore, the inner wall surface (4) is connected to the fluid from the pipes (1) and (2) that are in contact with the inner wall surface (4), and the confluence pipe (
3) guide surface (5) that generates a swirling force along the flow direction.
).

前記案内面（５）に衝突した水及び湯は、前記合流管（
３）の内壁面に沿って同方向に旋回して撹拌しながら下
流に流れていく。The water and hot water that collided with the guide surface (5) flow into the confluence pipe (
3), it swirls in the same direction along the inner wall surface and flows downstream while being stirred.

尚、前記混合湯栓を水平に配置する場合には、前記合流
管（３）に接続される管（１）　、　（２）の内下方に
位置する管（１）に湯を、上方に位置する管（２）に水
を対応させることで、対流による温度の均一化を図るこ
とができる。In addition, when the mixing hot water tap is arranged horizontally, the hot water is poured into the pipe (1) located at the lower side of the pipes (1) and (2) connected to the above-mentioned merging pipe (3), and the hot water is placed at the upper part. By making water correspond to the pipe (2), it is possible to equalize the temperature by convection.

〔別実施例］ 以下に本発明の別実施例を説明する。[Another example] Another embodiment of the present invention will be described below.

先の実施例では、合流管（３）の接続部での断面形状を
長円形に形成していたが、第２図（イ）乃至（ハ）に示
すように、合流管（３）の接続部での断面形状は円形で
あってもよい。この場合、旋回ムこよる撹拌効率はより
高くなる。In the previous embodiment, the cross-sectional shape at the connection part of the confluence pipe (3) was formed into an oval shape, but as shown in FIGS. The cross-sectional shape at the portion may be circular. In this case, the stirring efficiency due to the swirling force becomes higher.

先の実施例では合流管（３）へ接続される管（１）。In the previous embodiment, the pipe (1) is connected to the confluence pipe (3).

（２）の軸芯は共に合流管（３）の内壁面（４）と交差
するように配置してあるが、第３図（（）　、　（［１
）に示すように、いずれか一方の軸芯が合流管（３）の
軸芯と平行となるように管を配置してもよい。The axes of (2) are both arranged so as to intersect the inner wall surface (4) of the confluence pipe (3).
), the tubes may be arranged so that the axis of either one is parallel to the axis of the merging tube (3).

先の実施例では、案内面（５）を構成するに、前記合流
管の内壁面（４）の一部をそのまま用いているが、案内
面（５）としては、前記内壁面（４）の一部に流体を流
れ方向に沿って旋回させる螺旋の案内溝を形成してもよ
い。In the previous embodiment, a part of the inner wall surface (4) of the merging pipe is used as it is to constitute the guide surface (5), but as the guide surface (5), a part of the inner wall surface (4) is used as the guide surface (5). A spiral guide groove may be formed in a part of the tube to swirl the fluid along the flow direction.

先の実施例では、混合湯栓について述べたが、流路構造
としてはこれに限定するものではなく、水辺外の流体、
例えば、油等を混合するための流路構造であってもよい
。In the previous embodiment, a mixing faucet was described, but the flow path structure is not limited to this, and fluids outside the waterside,
For example, it may be a channel structure for mixing oil or the like.

尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

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

図面は本発明に係る流路構造の実施例を示し、第１図（
イ）は流路構造の切欠き正面図、第１図（ロ）は第１図
（イ）におけるＢ−８’線断面図、第１図（ハ）は平面
図、第１図（ニ）は側面図であり、第２［Ｎ（イ）乃至
（ハ）、及び第３図（イ）、（ロ）は別実施例を示し、
第２図（イ）は流路構造の切欠き正面図、第２図（σ）
は第２図（イ）における８−８’線断面図であり、第２
図（ハ）は同側面図、第３図（イ）は切欠き正面図、第
３図（ロ）は断面図であり、第４図は従来例を示す断面
図である。 （１）・・・・・・管、（２）・・・・・・管、（３）
・・・・・・合流管、（４）・・・・・・内壁面、（５
）・・・・・・案内面、（Ｐｌ）・・・・・・軸芯、（
Ｐ２）・・・・・・軸芯。The drawings show an embodiment of the flow path structure according to the present invention, and FIG.
A) is a cutaway front view of the channel structure, FIG. 1(B) is a sectional view taken along line B-8' in FIG. 1(A), FIG. 1(C) is a plan view, and FIG. 1(D) is a side view, and 2nd [N (a) to (c) and 3rd figures (a) and (b) show another embodiment,
Figure 2 (a) is a cutaway front view of the channel structure, Figure 2 (σ)
is a sectional view taken along line 8-8' in FIG.
FIG. 3(C) is a side view, FIG. 3(A) is a cutaway front view, FIG. 3(B) is a sectional view, and FIG. 4 is a sectional view showing a conventional example. (1)...Tube, (2)...Tube, (3)
... Merging pipe, (4) ... Inner wall surface, (5
)...Guide surface, (Pl)... Axis core, (
P2)...Axis core.

Claims (1)

【特許請求の範囲】 １、管（１）と管（２）とを合流管（３）に接続して合
流させる流路構造であって、前記管（１）、（２）夫々
の軸芯（Ｐ１）、（Ｐ２）を非交差状態で、且つ、前記
軸芯（Ｐ１）、（Ｐ２）の少なくとも一方が前記合流管
（３）の内壁面（４）と交差するように接続して構成し
てある流路構造。 ２、前記内壁面（４）を、前記内壁面（４）に当たる少
なくとも一方の前記管（１）、（２）からの流体に、前
記合流管（３）の流れ方向に沿って旋回力を生じさせる
案内面（５）に構成してある請求項１記載の流路構造。[Claims] 1. A flow path structure in which a pipe (1) and a pipe (2) are connected to a merging pipe (3) and merged, the axial center of each of the pipes (1) and (2) (P1) and (P2) are connected in a non-intersecting state, and at least one of the axes (P1) and (P2) intersects with the inner wall surface (4) of the merging pipe (3). The flow path structure. 2. The inner wall surface (4) generates a swirling force in the fluid from at least one of the pipes (1), (2) that hits the inner wall surface (4) along the flow direction of the merging pipe (3). 2. The flow path structure according to claim 1, wherein the flow path structure is configured on a guide surface (5).