JP2004316744A - Tube for removing impurities - Google Patents

Tube for removing impurities Download PDF

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Publication number
JP2004316744A
JP2004316744A JP2003109956A JP2003109956A JP2004316744A JP 2004316744 A JP2004316744 A JP 2004316744A JP 2003109956 A JP2003109956 A JP 2003109956A JP 2003109956 A JP2003109956 A JP 2003109956A JP 2004316744 A JP2004316744 A JP 2004316744A
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JP
Japan
Prior art keywords
inclined surface
contaminant
pipe
tube
main body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003109956A
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Japanese (ja)
Inventor
Toshiyuki Sato
敏之 佐藤
Tamotsu Yamashita
保 山下
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Suiken KK
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Suiken KK
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Filing date
Publication date
Application filed by Suiken KK filed Critical Suiken KK
Priority to JP2003109956A priority Critical patent/JP2004316744A/en
Publication of JP2004316744A publication Critical patent/JP2004316744A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a tube for removing impurities capable of having a simple structure and reducing costs and easily and quickly performing piping works. <P>SOLUTION: The tube for removing impurities comprises a tube body 7 capable of connecting flowing water tubes 3a and 3b, and a removing portion 8 having a discharging outlet 9a so as to remove impurities flowing inside the tube body 7. The removing portion 8 is integrally expanded on the tube body 7. The removing portion 8 comprises an impurities trap 10 expanded downward so as to be getting smaller in width in proportion to an outward direction on the diameter of the tube body 7, and a discharging portion 9 having the discharging outlet 9a which is formed on a lower end of the impurities trap 10. The angle α1 of an inclined surface 10a at an upstream side of the impurities trap 10 is set to be large in comparison with an angle α2 of an inclined surface 10b at a lower side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、流水管内を流れる流水中に含まれる夾雑物を除去するための夾雑物除去用管に関する。
【0002】
【従来の技術】
一般に、例えば、ダクタイル鋳鉄管等を使用した流水管においては、該管内面に錆止めのためにモルタルライニングが施されており、各家庭等に供給する水質を保障しているのが一般的である。
【0003】
【発明が解決しようとする課題】
上記水道管のように既設又は新設の流水管は、必要に応じて枝管を取り出すため、この流水管に孔穿け工事、さらには流水管の切断工事が施される。これら工事過程等が原因で、砂、錆粉や金属粉等の夾雑物が混入し、流水管内を流体と一緒に流れるという問題があった。
【0004】
そこで、流水中のこのような夾雑物を除去するためのフィルター部材を備えた装置が開発されている。しかし、この装置は、管とは別体の専用のものであるため、装置が複雑となり、コストが高くなると共に、配管現場での取り付け作業が煩雑となる問題があった。
【0005】
本発明は、このような問題点に着目してなされたもので、構造が簡単で且つコストの低減を図ることができ、しかも、配管工事を容易且つ迅速に行える夾雑物除去用管を提供することを課題とする。
【0006】
【課題を解決するための手段】
本発明は、前記課題を解決するためになされたもので、その技術的手段は、流水管3a,3b間に接続可能な管本体7と、該管本体7内を流れる夾雑物を除去するための排出口9aを有する除去部8を備えた夾雑物除去用管において、前記除去部8は管本体7に一体的に膨出成形され、前記除去部8は、管本体7の径外方に行くに従い幅小となるように下方に膨出した夾雑物捕集部10と、該夾雑物捕集部10の下端に形成された前記排出口9aを有する排出部9とを備え、前記夾雑物捕集部10の上流側の傾斜面10aの角度α1は、下流側の傾斜面10bの角度α2に比し、大きく設定されていることにある。
【0007】
そして、上流側の流水管3aから管本体7に流体と共に入った夾雑物は、比重差により下向きに設けられた除去部8の内面を伝って下方に移動するため、下流側の流水管3bを流れる流体と分離され、排出口9aを介して排出される。特に、傾斜角度が急な上流側の傾斜面10aにおいて、流速が急に減速するので、流水管3a内の底面と連続する上流側の傾斜面10aを伝って夾雑物が下方に落下し易くなり、夾雑物を確実に捕集することができる。
【0008】
更に、流水管3a,3b間に接続可能な管本体7と、該管本体7内を流れる夾雑物を除去するための排出口9aを有する除去部8を備えた夾雑物除去用管において、前記除去部8は管本体7に一体的に膨出成形され、前記除去部8は、管本体7の径外方に行くに従い幅小となるように下方に膨出した夾雑物捕集部10と、該夾雑物捕集部10の下端に形成された前記排出口9aを有する排出部9とを備え、前記夾雑物捕集部10の上流側の傾斜面10aと、下流側の傾斜面10bは同等に設定され、前記傾斜面10a、10bは、夾雑物の入り口側から第1傾斜面10a1、10b1と、排出部9側の第2傾斜面10a2、10b2の複数段階に設けられ、第1傾斜面10a1、10b1の角度α1a、α2aは、第2傾斜面10a2、10b2の角度α1b、α2bよりも大きくなっていることにある。かかる場合には、流体の流れ方向とは無関係に取り付けることができ、上下流側(取り付け勝手)を確認する必要がないため、現場での取り付け作業が簡単になる。
【0009】
【発明の実施の形態】
以下、本発明に係る夾雑物除去用管の実施の形態を図面に基づいて詳細に説明する。図1〜図3は本発明の第一実施の形態を示し、同図において1は、一対の流水管3a,3bの間に接続される夾雑物除去用管を示す。該夾雑物除去用管1は、両端に前記流水管3a,3bに水密状に外嵌される膨出状の連結部5、5aをそれぞれ有する管本体7と、該管本体7内を流れる夾雑物を除去するための除去部8とが、ダクタイル鋳鉄又は合成樹脂等から一体的に成形されている。
【0010】
尚、管本体7の下流側の他端は、連結部が設けられていていなくてもよいが、かかる他端は、下流側の流水管3bに水密状に連結される。また、管本体7は全長にわたって同一直径のものであっても良い。
【0011】
前記除去部8は、管本体7の径外方に行くに従い幅小(テーパー状)となるように下方に膨出した夾雑物捕集部10を有し、この夾雑物捕集部10により、夾雑物を溜めるのに適した空間を形成している。そして、夾雑物捕集部10の下端に下向きの排出口9aを有する排出部9が一体成形されている。
【0012】
具体的には、夾雑物捕集部10の水平方向に対する上流側の傾斜面10aの角度α1は、下流側の傾斜面10bの角度α2に比し、大きく設定されている。また、下流側の傾斜面10bの一端(上端)と排出部9の中心Oまでの距離Lは、200mm以上であるのが好ましい。更に好ましくは、下流側の傾斜面10bのの一端と排出部9の中心0までの距離Lは、管本体7の内径d以上に設定されている。
【0013】
前記排出部9の下端には、前記夾雑物捕集部10に溜まった夾雑物を排出するための排出用配管又はパイプ等の連結手段12が適宜接続されている。連結手段12は、例えば図示省略の消火栓に接続されている。夾雑物は、排出用配管12を介して排出可能である。
【0014】
次に、前記流水管を流体(水)と一緒に流れる夾雑物を捕集するメカニズムについて説明する。
砂や金属粉等の水よりも比重の大きい夾雑物は、上流側の流水管3a内の底面を転がりながら飛ぶようにして(跳ねるようにして)流れて運ばれてくる。本実施の形態では、夾雑物捕集部10の上流側の傾斜面10aが、下流側の傾斜面10bに比し、管軸方向に短くなっている。すなわち、夾雑物が跳ねるようにして流れてきても、流速が夾雑物捕集部10で急に減速するので、流水管3a内の底面と連続する上流側の傾斜面10aを伝って夾雑物が下方に落下する。特に比重の大きな夾雑物を確実に捕集することができる。
【0015】
尚、下流側の傾斜面10bの一端と排出部9の中心Oまでの距離Lは、200mm以上で、且つ、管本体7の内径d以上に設定されている場合には、流体が水道水である場合のその流速等を考慮すると、上流側の傾斜面10aを伝って落下しなかった夾雑物は、傾斜が緩やかな傾斜面10bに当接し、該傾斜面10bに沿って下方に落下し易くなり、最も効率よく夾雑物を捕集できることが実験的に確認された。
【0016】
前記夾雑物捕集部10に捕集された夾雑物は、排出部9を介して排出用配管12に蓄積されるが、水道水を放出して消火栓を定期的に点検する際に、排出用配管12に蓄積された夾雑物を水と共に外部に排出することができる。
前記第一実施の形態の夾雑物除去用管は、夾雑物捕集部10の上流側の傾斜面10aが、下流側の傾斜面10bに比し、管軸方向に短くなっているため、夾雑物除去用管の全長を可及的に短くできる利点がある。
【0017】
図4及び図5は、本発明の第二実施の形態を示し、前記第一実施の形態と同一部材は同一符号を付して、その説明を省略する。具体的には、前記管本体7の下面側で且つ傾斜面10aの上流位置(上端)には、第一突出部15が管本体7の周方向に設けられている。該突出部15の長さ(周長)L1は、図5に示す如く夾雑物捕集部10の基部の幅(周長)Wよりも長く設定されている。また、突出部15の高さは、流体の流量及び流速や、夾雑物の種類によって適宜設定されると共に、その上面には、下流に向けて次第に高くなる方向に傾斜する傾斜面15aが形成されているのが好ましい。また、下流側の傾斜面10bの下流位置にも、第二突出部16が設けられている。尚、突出部15,16は、管本体7と一体に成形しても、別体のものを固定しても良い。
【0018】
前記第一突出部15を管本体7の周方向に設けることにより、夾雑物を巻き込むようにして下方の傾斜面10aに効果的に導くことができる。また、第二突出部16は、管本体7を流体が逆流する場合に効果的であり、第一突出部15と同様の効果が期待できる。
【0019】
図6は、本発明の第三実施の形態を示す。即ち本実施の形態は、夾雑物捕集部10の一方側の傾斜面10aと、他方側の傾斜面10bをそれぞれ同等に設けたものである。具体的には、各傾斜面10a、10bは、夾雑物の入り口側から第1傾斜面10a1、10b1と、排出部9側の第2傾斜面10a2、10b2の2段階に設けられている。第1傾斜面10a1、10b1の角度α1a、α2aは、第2傾斜面10a2、10b2の角度α1b、α2bよりも大きくなっている。
【0020】
かかる夾雑物除去用管1は、流体の流れ方向とは無関係に取り付けることができ、上下流側(取り付け勝手)を確認する必要がないため、現場での取り付け作業が簡単になる。また、夾雑物捕集部10の開口部の断面が大きくできるので、夾雑物を確実に回収できる。尚、前記第二実施の形態で示した突出部15を採用することも可能である。かかる場合には、図3に仮想線で示し如く、同一形状の突出部15が一対設けられることとなる。
【0021】
本発明は上記実施の形態に限定されるものではなく、例えば、排出部9を介して除去された夾雑物を所定量蓄えておいて、自動的に排出できるようにしても良い。また、流水管は水道管等の任意のものが採用可能であり、例えば既設の流水管内を流れる流体は、水道水の他の液体であっても本発明の範囲に含まれる。
【0022】
しかも、2本の流水管3a,3bの直径は同じものに限らず、相違するもの同士の接続にも採用可能である。かかる場合には、管本体7の一方と他方の内径(口径)が相違することとなる。また、管本体7の断面形状は、円筒状以外に角筒状等のように任意の形状のものが可能である。
【0023】
【発明の効果】
以上のように、本発明は、除去部が管本体に一体的に膨出成形され、前記除去部は、管本体の径外方に行くに従い幅小となるように下方に膨出した夾雑物捕集部と、該夾雑物捕集部の下端に形成された前記排出口を有する排出部とを備えているので、構造が簡単で且つコストの低減を図ることができる利点があると共に、配管現場においては、除去部を管本体へ取り付ける手間が省け、配管作業を容易且つ迅速に行える。しかも、夾雑物捕集部の上流側の傾斜面の角度は、下流側の傾斜面の角度に比し、大きく設定されているので、特に比重の大きい夾雑物を確実に捕集することができる。
【0024】
前記夾雑物捕集部の上流側の傾斜面と、下流側の傾斜面は同等に設定され、前記傾斜面は、夾雑物の入り口側から第1傾斜面と、排出部側の第2傾斜面の2段階に設けられ、第1傾斜面の角度は、第2傾斜面の角度よりも大きくなっていることにある。かかる場合には、流体の流れ方向とは無関係に取り付けることができ、上下流側(取り付け勝手)を確認する必要がないため、現場での取り付け作業が簡単になる。
【図面の簡単な説明】
【図1】本発明の第一実施の形態を示す一部断面を含む正面図である。
【図2】同図1のA−A線矢視断面図である。
【図3】同全体斜視図である。
【図4】本発明の第二実施の形態を示す一部断面を含む正面図である。
【図5】同図4のB−B線矢視断面図である。
【図6】本発明の第三実施の形態を示す断面正面図である。
【符号の説明】
3a,3b…流水管、7…管本体、8…除去部、9a…排出口、10…夾雑物捕集部、10a…上流側の傾斜面、10b…下流側の傾斜面、15,16…突出部、α1…上流側の傾斜面の角度、α2…下流側の傾斜面の角度
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a contaminant removal pipe for removing contaminants contained in running water flowing in a running water pipe.
[0002]
[Prior art]
Generally, for example, in a running water pipe using a ductile cast iron pipe or the like, a mortar lining is applied to the inner surface of the pipe to prevent rust, and it is general that the quality of water supplied to each household or the like is guaranteed. .
[0003]
[Problems to be solved by the invention]
Existing or new water pipes such as the above-mentioned water pipes are subjected to drilling work and cutting of the water pipes in order to take out branch pipes as necessary. Due to these construction processes, contaminants such as sand, rust powder and metal powder are mixed, and there is a problem that they flow together with the fluid in the water pipe.
[0004]
Therefore, an apparatus having a filter member for removing such contaminants in running water has been developed. However, since this device is a dedicated device separate from the pipe, the device becomes complicated, the cost increases, and there is a problem that the mounting work at the piping site becomes complicated.
[0005]
SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and provides a pipe for removing contaminants that has a simple structure and can be reduced in cost, and that can perform piping work easily and quickly. That is the task.
[0006]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problem, and its technical means is to remove a foreign matter flowing through the pipe main body 7 which can be connected between the flowing water pipes 3a and 3b. In the tube for removing contaminants provided with the removing portion 8 having the discharge port 9a, the removing portion 8 is formed so as to be bulged integrally with the tube main body 7, and the removing portion 8 is provided radially outward of the tube main body 7. A contaminant collecting part 10 swelling downward so as to become smaller in width as it goes, and a discharge part 9 having the discharge port 9a formed at a lower end of the contaminant collecting part 10; The angle α1 of the inclined surface 10a on the upstream side of the collection unit 10 is set to be larger than the angle α2 of the inclined surface 10b on the downstream side.
[0007]
Then, the contaminants entering the pipe main body 7 together with the fluid from the upstream flowing water pipe 3a move downward along the inner surface of the removing section 8 provided downward due to the specific gravity difference. It is separated from the flowing fluid and discharged through the discharge port 9a. In particular, since the flow velocity is abruptly reduced on the upstream inclined surface 10a having a steep inclination angle, impurities easily fall down along the upstream inclined surface 10a continuous with the bottom surface in the water pipe 3a. In addition, impurities can be reliably collected.
[0008]
Further, in the foreign matter removing pipe having a pipe main body 7 connectable between the flowing water pipes 3a and 3b and a removing portion 8 having a discharge port 9a for removing foreign substances flowing through the pipe main body 7, The removing portion 8 is formed integrally with the tube body 7 by bulging and forming. The removing portion 8 includes a contaminant collecting portion 10 bulging downward so as to become smaller in width toward the outside of the tube body 7. A discharge section 9 having the discharge port 9a formed at a lower end of the foreign substance collecting section 10, and an upstream inclined surface 10a and a downstream inclined surface 10b of the foreign substance collecting section 10 are provided. The inclined surfaces 10a and 10b are provided at a plurality of stages of the first inclined surfaces 10a1 and 10b1 from the entrance side of the contaminants and the second inclined surfaces 10a2 and 10b2 on the discharge unit 9 side. The angles α1a, α2a of the surfaces 10a1, 10b1 are equal to the second inclined surfaces 10a2, 10b. 2 are larger than the angles α1b and α2b. In such a case, the mounting can be performed irrespective of the flow direction of the fluid, and it is not necessary to check the upstream and downstream sides (installation easiness).
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a contaminant removal pipe according to the present invention will be described in detail with reference to the drawings. 1 to 3 show a first embodiment of the present invention, in which 1 denotes a contaminant removal pipe connected between a pair of flowing water pipes 3a and 3b. The contaminant removal pipe 1 includes a pipe main body 7 having swelling connecting portions 5 and 5a respectively fitted on both ends of the water pipes 3a and 3b in a watertight manner, and a contaminant flowing in the pipe main body 7. A removing portion 8 for removing the object is integrally formed of ductile cast iron, synthetic resin, or the like.
[0010]
Note that the other end on the downstream side of the pipe main body 7 may not be provided with a connecting portion, but the other end is connected to the downstream flowing water pipe 3b in a watertight manner. The pipe body 7 may have the same diameter over the entire length.
[0011]
The removing section 8 has a foreign substance collecting section 10 swelling downward so as to become smaller in width (tapered shape) toward the outside of the pipe main body 7. It forms a space suitable for storing impurities. A discharge section 9 having a downward discharge port 9a is integrally formed at the lower end of the impurity collecting section 10.
[0012]
Specifically, the angle α1 of the inclined surface 10a on the upstream side with respect to the horizontal direction of the impurity collecting unit 10 is set to be larger than the angle α2 of the inclined surface 10b on the downstream side. The distance L between one end (upper end) of the downstream inclined surface 10b and the center O of the discharge unit 9 is preferably 200 mm or more. More preferably, the distance L between one end of the downstream inclined surface 10b and the center 0 of the discharge portion 9 is set to be equal to or larger than the inner diameter d of the pipe main body 7.
[0013]
A connecting means 12 such as a discharge pipe or a pipe for discharging contaminants accumulated in the contaminant collection part 10 is connected to a lower end of the discharge part 9 as appropriate. The connecting means 12 is connected to, for example, a fire hydrant (not shown). Impurities can be discharged through the discharge pipe 12.
[0014]
Next, a description will be given of a mechanism for collecting foreign substances flowing through the water pipe together with the fluid (water).
Contaminants having a specific gravity larger than water, such as sand and metal powder, flow and are carried while rolling (bouncing) on the bottom surface in the upstream flowing water pipe 3a. In the present embodiment, the upstream inclined surface 10a of the contaminant collection unit 10 is shorter in the pipe axis direction than the downstream inclined surface 10b. That is, even if the foreign matter flows in a bouncing manner, the flow velocity is rapidly reduced in the foreign matter collecting unit 10, so that the foreign matter travels on the upstream inclined surface 10a continuous with the bottom surface in the water pipe 3a. Fall down. In particular, it is possible to reliably collect impurities having a large specific gravity.
[0015]
When the distance L between one end of the downstream inclined surface 10b and the center O of the discharge portion 9 is 200 mm or more and is set to be equal to or more than the inner diameter d of the pipe main body 7, the fluid is tap water. In consideration of the flow velocity and the like in a certain case, the contaminants that did not fall along the upstream inclined surface 10a abut the gentle inclined surface 10b, and easily fall downward along the inclined surface 10b. Thus, it was experimentally confirmed that contaminants can be collected most efficiently.
[0016]
The contaminants collected by the contaminant collection unit 10 are accumulated in the discharge pipe 12 through the discharge unit 9, and are discharged when tap water is discharged and the fire hydrant is regularly inspected. Impurities accumulated in the pipe 12 can be discharged to the outside together with water.
The contaminant removal pipe of the first embodiment has a configuration in which the inclined surface 10a on the upstream side of the contaminant collecting unit 10 is shorter in the pipe axis direction than the inclined surface 10b on the downstream side. There is an advantage that the overall length of the object removing tube can be reduced as much as possible.
[0017]
4 and 5 show a second embodiment of the present invention. The same members as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Specifically, a first protruding portion 15 is provided in the circumferential direction of the pipe main body 7 on the lower surface side of the pipe main body 7 and at an upstream position (upper end) of the inclined surface 10a. The length (perimeter) L1 of the protruding portion 15 is set to be longer than the width (perimeter) W of the base of the contaminant collector 10 as shown in FIG. The height of the protruding portion 15 is appropriately set depending on the flow rate and flow velocity of the fluid and the type of impurities, and on the upper surface thereof, an inclined surface 15a that is inclined in a direction gradually increasing toward the downstream is formed. Is preferred. Further, a second protruding portion 16 is provided at a position downstream of the downstream inclined surface 10b. The protrusions 15 and 16 may be formed integrally with the tube body 7 or may be fixed separately.
[0018]
By providing the first projecting portion 15 in the circumferential direction of the pipe main body 7, foreign substances can be effectively led to the lower inclined surface 10a so as to be involved. Further, the second projecting portion 16 is effective when the fluid flows backward through the pipe body 7, and the same effect as the first projecting portion 15 can be expected.
[0019]
FIG. 6 shows a third embodiment of the present invention. That is, in the present embodiment, the inclined surface 10a on one side and the inclined surface 10b on the other side of the contaminant collector 10 are provided equally. Specifically, each of the inclined surfaces 10a and 10b is provided in two stages of first inclined surfaces 10a1 and 10b1 from the entrance side of the contaminant and second inclined surfaces 10a2 and 10b2 on the discharge unit 9 side. The angles α1a and α2a of the first inclined surfaces 10a1 and 10b1 are larger than the angles α1b and α2b of the second inclined surfaces 10a2 and 10b2.
[0020]
The contaminant removal pipe 1 can be attached irrespective of the flow direction of the fluid, and there is no need to check the upstream and downstream sides (installation convenience), so that the attachment work on site is simplified. In addition, since the cross section of the opening of the impurity collecting unit 10 can be enlarged, the impurity can be reliably collected. Incidentally, it is also possible to employ the protruding portion 15 shown in the second embodiment. In such a case, as shown by a virtual line in FIG. 3, a pair of protrusions 15 having the same shape is provided.
[0021]
The present invention is not limited to the above-described embodiment. For example, a predetermined amount of impurities removed via the discharge unit 9 may be stored and automatically discharged. In addition, any type of water pipe such as a water pipe can be adopted. For example, a fluid flowing through an existing water pipe is another liquid of tap water, and is included in the scope of the present invention.
[0022]
In addition, the diameters of the two flowing water pipes 3a and 3b are not limited to the same, but can be adopted for connecting different pipes. In such a case, the inner diameter (diameter) of one and the other of the pipe main body 7 is different. The cross-sectional shape of the tube body 7 can be any shape such as a rectangular tube shape other than the cylindrical shape.
[0023]
【The invention's effect】
As described above, according to the present invention, the removal portion is formed integrally with the pipe body by bulging, and the removal portion is a contaminant that bulges downward so as to become narrower toward the outside of the pipe body. Since it has a collecting part and a discharge part having the discharge port formed at the lower end of the contaminant collecting part, there is an advantage that the structure is simple and the cost can be reduced, and piping is provided. At the site, the trouble of attaching the removing unit to the pipe main body can be omitted, and the piping work can be performed easily and quickly. In addition, since the angle of the inclined surface on the upstream side of the impurity collecting section is set to be larger than the angle of the inclined surface on the downstream side, it is possible to reliably collect the impurity having a particularly large specific gravity. .
[0024]
The upstream inclined surface and the downstream inclined surface of the contaminant collecting unit are set to be equal, and the inclined surface is a first inclined surface from the entrance side of the contaminant and a second inclined surface from the discharge unit side. And the angle of the first inclined surface is larger than the angle of the second inclined surface. In such a case, the mounting can be performed irrespective of the flow direction of the fluid, and it is not necessary to check the upstream and downstream sides (installation easiness).
[Brief description of the drawings]
FIG. 1 is a front view including a partial cross section showing a first embodiment of the present invention.
FIG. 2 is a sectional view taken along the line AA of FIG. 1;
FIG. 3 is an overall perspective view of the same.
FIG. 4 is a front view including a partial cross section showing a second embodiment of the present invention.
FIG. 5 is a sectional view taken along line BB of FIG. 4;
FIG. 6 is a sectional front view showing a third embodiment of the present invention.
[Explanation of symbols]
3a, 3b: running water pipe, 7: pipe main body, 8: removing section, 9a: discharge port, 10: contaminant collecting section, 10a: upstream inclined surface, 10b: downstream inclined surface, 15, 16 ... Projection, α1 ... Angle of upstream slope, α2 ... Angle of downstream slope

Claims (2)

流水管(3a),(3b)間に接続可能な管本体(7)と、該管本体(7)内を流れる夾雑物を除去するための排出口(9a)を有する除去部(8)を備えた夾雑物除去用管において、前記除去部(8)は管本体(7)に一体的に膨出成形され、前記除去部(8)は、管本体(7)の径外方に行くに従い幅小となるように下方に膨出した夾雑物捕集部(10)と、該夾雑物捕集部(10)の下端に形成された前記排出口(9a)を有する排出部(9)とを備え、前記夾雑物捕集部(10)の上流側の傾斜面(10a)の角度(α1)は、下流側の傾斜面(10b)の角度(α2)に比し、大きく設定されていることを特徴とする夾雑物除去用管。A removing part (8) having a pipe body (7) connectable between the flowing water pipes (3a) and (3b) and a discharge port (9a) for removing impurities flowing through the pipe body (7). In the contaminant removing tube provided, the removing portion (8) is formed so as to be bulged integrally with the tube main body (7), and the removing portion (8) moves outward from the pipe main body (7). A contaminant collecting part (10) bulging downward so as to have a small width; and a discharge part (9) having the discharge port (9a) formed at a lower end of the contaminant collection part (10). The angle (α1) of the inclined surface (10a) on the upstream side of the contaminant collector (10) is set to be larger than the angle (α2) of the inclined surface (10b) on the downstream side. A tube for removing contaminants, comprising: 流水管(3a),(3b)間に接続可能な管本体(7)と、該管本体(7)内を流れる夾雑物を除去するための排出口(9a)を有する除去部(8)を備えた夾雑物除去用管において、前記除去部(8)は管本体(7)に一体的に膨出成形され、前記除去部(8)は、管本体(7)の径外方に行くに従い幅小となるように下方に膨出した夾雑物捕集部(10)と、該夾雑物捕集部(10)の下端に形成された前記排出口(9a)を有する排出部(9)とを備え、前記夾雑物捕集部(10)の上流側の傾斜面(10a)と、下流側の傾斜面(10b)は同等に設定され、前記傾斜面(10a)、(10b)は、夾雑物の入り口側から第1傾斜面(10a1)、(10b1)と、排出部(9)側の第2傾斜面(10a2)、(10b2)の複数段階に設けられ、第1傾斜面(10a1)、(10b1)の角度(α1a)、(α2a)は、第2傾斜面(10a2)、(10b2)の角度(α1b)、(α2b)よりも大きくなっていることを特徴とする夾雑物除去用管。A removing part (8) having a pipe body (7) connectable between the flowing water pipes (3a) and (3b) and a discharge port (9a) for removing impurities flowing through the pipe body (7). In the contaminant removing tube provided, the removing portion (8) is formed so as to be bulged integrally with the tube main body (7), and the removing portion (8) moves outward from the pipe main body (7). A contaminant collecting part (10) bulging downward so as to have a small width; and a discharge part (9) having the discharge port (9a) formed at a lower end of the contaminant collection part (10). The inclined surface (10a) on the upstream side of the contaminant collector (10) and the inclined surface (10b) on the downstream side are set to be equal, and the inclined surfaces (10a) and (10b) are contaminated. A plurality of steps of a first inclined surface (10a1) and (10b1) from the entrance side of the object and a second inclined surface (10a2) and (10b2) on the discharge unit (9) side. The angles (α1a) and (α2a) of the first inclined surfaces (10a1) and (10b1) are larger than the angles (α1b) and (α2b) of the second inclined surfaces (10a2) and (10b2). A tube for removing contaminants, comprising:
JP2003109956A 2003-04-15 2003-04-15 Tube for removing impurities Pending JP2004316744A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009008617A (en) * 2007-06-29 2009-01-15 Hitachi Ltd Nuclear power plant
KR100943937B1 (en) 2008-03-14 2010-02-24 황인중 The waterworks tube leads and the impurities removalsystem
JP2015140686A (en) * 2014-01-27 2015-08-03 株式会社東芝 Steam turbine pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009008617A (en) * 2007-06-29 2009-01-15 Hitachi Ltd Nuclear power plant
JP4625484B2 (en) * 2007-06-29 2011-02-02 株式会社日立製作所 Nuclear power plant
KR100943937B1 (en) 2008-03-14 2010-02-24 황인중 The waterworks tube leads and the impurities removalsystem
JP2015140686A (en) * 2014-01-27 2015-08-03 株式会社東芝 Steam turbine pipe

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