JPH0874303A - Drainage of building - Google Patents
Drainage of buildingInfo
- Publication number
- JPH0874303A JPH0874303A JP20981394A JP20981394A JPH0874303A JP H0874303 A JPH0874303 A JP H0874303A JP 20981394 A JP20981394 A JP 20981394A JP 20981394 A JP20981394 A JP 20981394A JP H0874303 A JPH0874303 A JP H0874303A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- air
- ventilation
- drainage
- drain pipe
- 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
Links
Landscapes
- Sink And Installation For Waste Water (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は建物の排水装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage system for buildings.
【0002】[0002]
【従来の技術と発明が解決しようとする課題】マンショ
ン、ホテル等の高層建築物においては、図3に示すよう
に、各階、各部屋の器具に接続された排水管1を建物の
上下方向に配管された排水立て管2に接続し、その立て
管2の下端に脚部曲管3を介して横走り管4を接続して
いる。2. Description of the Related Art In high-rise buildings such as condominiums and hotels, as shown in FIG. 3, drain pipes 1 connected to appliances on each floor and each room are installed in the vertical direction of the building. It is connected to a drainage vertical pipe 2 which is piped, and a lateral running pipe 4 is connected to the lower end of the vertical pipe 2 via a leg bent pipe 3.
【0003】上記の立て管2内に流入した排水は、重力
の加速度により高速で落下し、脚部曲管3の付近に到達
すると空気抵抗により大きく減速される。しかし、脚部
曲管3において横走り管4の方向に向きを変える際に慣
性により激しく跳跳し、かつ内壁面に沿って旋回する。
この現象は、一般に「ジャンピング現象」と呼ばれる
(図中、符号aで示す太い矢印がその現象を概念的に示
している)。The drainage flowing into the vertical pipe 2 drops at a high speed due to the acceleration of gravity, and when it reaches the vicinity of the leg bent pipe 3, it is greatly decelerated by the air resistance. However, in the leg bent pipe 3, when it changes its direction toward the lateral running pipe 4, it jumps violently due to inertia and turns along the inner wall surface.
This phenomenon is generally called “jumping phenomenon” (in the figure, a thick arrow indicated by a symbol conceptually indicates the phenomenon).
【0004】これに対し、横走り管4内の空気は、ジャ
ンピング現象を生起しながら流動する排水と衝突して強
く圧縮され、その圧縮が極限に達すると排水中を逆方向
に強行突破する。符号bで示す細い矢印がその圧縮空気
の反発状況を示している。On the other hand, the air in the lateral running pipe 4 collides with the flowing drainage while causing a jumping phenomenon and is strongly compressed, and when the compression reaches the limit, it rushes through the drainage in the opposite direction. The thin arrow indicated by the symbol b indicates the repulsive condition of the compressed air.
【0005】このとき、その空気が排水中の洗剤や界面
活性剤に取り囲まれて発砲し、その泡が立て管2内を上
昇し、上層階の器具の封水を破って溢れ出る。At this time, the air is fired while being surrounded by the detergent and the surfactant in the drainage, and the bubbles rise in the rising pipe 2 and break the sealing water of the equipment on the upper floors and overflow.
【0006】一方、横走り管4の下流側では、空気は逃
げ場を求めて排水していない他の管路内に流入し、その
上層階の器具のトラップの封水を破って溢れる。また、
前記排水の通過が完了すると、今度はトラップの封水を
吸引し、その際に不快な騒音を発生する。On the other hand, on the downstream side of the laterally running pipe 4, air flows into another pipe which is not drained in search of an escape place, and overflows by breaking the sealing water of the trap of the device on the upper floor. Also,
When the passage of the waste water is completed, the trap water in the trap is sucked, which causes an unpleasant noise.
【0007】このような問題を解決するために、図3に
一点鎖線で示すように、立て管2の最低部(脚部曲管3
の上部)に通気管5を設けることが知られている。この
通気管5により立て管2の最低部における空気圧縮を緩
和しようとするものである。In order to solve such a problem, as shown by the alternate long and short dash line in FIG.
It is known to provide the ventilation pipe 5 in the upper part of the. This ventilation pipe 5 is intended to alleviate air compression at the lowest part of the vertical pipe 2.
【0008】しかしながら、立て管2内の高速落下水
は、脚部曲管3の上流で激しい空気抵抗を受けて混合流
体を生じ、その混合流体が通気管5に吹き込み(図の一
点鎖線矢印参照)、短期間でこれを閉塞させるに至り、
空気圧縮を緩和させようとする所期の目的を達成するこ
とができない。However, the high-speed falling water in the vertical pipe 2 is subjected to severe air resistance upstream of the leg curved pipe 3 to generate a mixed fluid, and the mixed fluid is blown into the ventilation pipe 5 (see the one-dot chain line arrow in the figure). ), It came to occlude this in a short period of time,
The intended purpose of mitigating air compression cannot be achieved.
【0009】また、横走り管4に通気管を立上げる手段
もある。これによると、横走り管4内の空気圧の変動は
小さくなるが、立て管2内を落下する排水の速度が増
し、上層階の器具の排水トラップの封水が吸引され、封
水機能が失われる問題がある。There is also a means for raising a ventilation pipe on the laterally running pipe 4. According to this, the fluctuation of the air pressure in the lateral running pipe 4 becomes small, but the speed of the drainage falling in the vertical pipe 2 increases, the sealing water of the drain trap of the equipment on the upper floor is sucked, and the sealing function is lost. There is a problem.
【0010】この発明は以上のごとき問題点を合理的に
解消し、排水の立て管から横走り管に流入した排水が、
上層階の器具に影響を与えることなく、円滑に横走り管
下流へ排出できるようにすることを目的とする。The present invention rationally solves the above problems, and the drainage flowing from the drainage standpipe into the lateral running pipe is
The objective is to enable smooth horizontal running and discharge to the downstream of the pipe without affecting the equipment on the upper floors.
【0011】[0011]
【課題を解決するための手段】上記の目的を達成するた
めに、この発明は、図1に示すように、排水立て管2の
下端部をこれより大径の脚部曲管3の上端部に挿入し、
該脚部曲管3の上端と立て管2外周面との間を閉塞し
て、立て管2の挿入部分の外周と脚部曲管3の内周面と
の間に気流誘引隙間6を形成する。また脚部曲管3の上
端部側面に、上記気流誘引隙間6に通じた通気環流部7
を設ける。In order to achieve the above-mentioned object, according to the present invention, as shown in FIG. 1, the lower end portion of the drainage vertical pipe 2 is connected to the upper end portion of a leg bent pipe 3 having a larger diameter than that. Insert into
The upper end of the leg bend pipe 3 and the outer peripheral surface of the stand pipe 2 are closed to form an air flow guide gap 6 between the outer periphery of the insertion portion of the stand pipe 2 and the inner peripheral surface of the leg bend pipe 3. To do. Further, on the side surface of the upper end portion of the leg bent pipe 3, a ventilation circulating portion 7 communicating with the air flow guide gap 6 is formed.
To provide.
【0012】上記の脚部曲管3の下端に横走り管4を連
結し、その横走り管4に通気始点部8を設け、この通気
始点部8と前記の通気環流部7との間に帰還通気管9を
設ける。上記の通気始点部8は、脚部曲管3の下端から
2〜3mの範囲内に設けられる。A lateral running pipe 4 is connected to the lower end of the leg bent pipe 3 and a ventilation starting point 8 is provided in the lateral running pipe 4. Between the ventilation starting point 8 and the ventilation circulating part 7. A return ventilation pipe 9 is provided. The ventilation starting point portion 8 is provided within a range of 2 to 3 m from the lower end of the leg curved pipe 3.
【0013】[0013]
【作用】上記の構成によると、排水管1から立て管2に
入った排水が立て管2の下端から抜け出る際に気流誘引
隙間6の空気を誘引し、その隙間6及びこれに通じた通
気環流部7の近辺を負圧にする。脚部曲管3を経て横走
り管4に流入した排水は、従来と同様にジャンピング現
象を生起するが、横走り管4内で圧縮された空気は、通
気始点部8から帰還通気管9に入り、通気環流部7近辺
の負圧に引かれて再び脚部曲管3内に戻る。以後空気は
上記の帰還通気管9を経て循環し、立て管2上方、及び
横走り管4下流へ圧縮空気は抜けることを防止する。According to the above-mentioned structure, when the drainage that has entered the standpipe 2 from the drainage pipe 1 escapes from the lower end of the standpipe 2, the air in the airflow-inducing gap 6 is attracted, and the gap 6 and the ventilation recirculation flowing therethrough. A negative pressure is applied to the vicinity of the part 7. The drainage flowing into the lateral running pipe 4 through the leg curved pipe 3 causes a jumping phenomenon as in the conventional case, but the air compressed in the lateral running pipe 4 flows from the ventilation start point 8 to the return ventilation pipe 9. It enters and is pulled by the negative pressure in the vicinity of the ventilation circulation portion 7 and returns to the leg curved pipe 3 again. Thereafter, the air circulates through the return ventilation pipe 9 to prevent the compressed air from escaping above the stand pipe 2 and downstream of the lateral running pipe 4.
【0014】なお、立て管2の下端は、通気環流部7よ
りも下方に達するように挿入されているので、立て管2
から排出された排水と空気の混合流体が帰還通気管9へ
吹き込むことは防止される。Since the lower end of the stand pipe 2 is inserted so as to reach below the ventilation circulation part 7, the stand pipe 2
It is possible to prevent the mixed fluid of the waste water and the air discharged from the air blown into the return ventilation pipe 9.
【0015】[0015]
【実施例】図2は実施例であり、この場合は、脚部曲管
3の上端部内径が、その上端部に挿入された立て管2の
外径に適合する径に形成され、脚部曲管3のフランジ1
1の内側において立て管2に装着したパッキン12を押
し輪13で締付けて閉塞している。EXAMPLE FIG. 2 shows an example. In this case, the inner diameter of the upper end portion of the leg bent tube 3 is formed to a diameter that matches the outer diameter of the stand tube 2 inserted into the upper end portion, and the leg portion is formed. Flange 1 of bent tube 3
The packing 12 attached to the vertical pipe 2 inside 1 is tightened by a push ring 13 to close it.
【0016】脚部曲管3の側面には、側方に突出した分
岐継手部14が設けられ、前述の通気環流部7を構成し
ている。A branch joint portion 14 projecting laterally is provided on the side surface of the leg bent pipe 3, and constitutes the above-mentioned ventilation circulation portion 7.
【0017】上記分岐継手管12より低い位置におい
て、脚部曲管3内周面と立て管2の外周面との間に気流
誘引隙間6が設けられている。At a position lower than the branch joint pipe 12, an airflow guide gap 6 is provided between the inner peripheral surface of the leg bent pipe 3 and the outer peripheral surface of the stand pipe 2.
【0018】脚部曲管3の下端には、2〜3m程度の中
継管15が連結され、更にその中継管15に横走り本管
16が連結される。この中継管15と横走り本管16と
により、前述の横走り管4を構成している。A relay pipe 15 having a length of about 2 to 3 m is connected to the lower end of the leg bent pipe 3, and a lateral running main pipe 16 is further connected to the relay pipe 15. The relay pipe 15 and the laterally running main pipe 16 constitute the laterally running pipe 4 described above.
【0019】上記の横走り本管16の中継管15に近い
部分に上向きの分岐継手部17が設けられ、これにより
前述の通気始点部8を構成している。この分岐継手部1
7と前記の分岐継手部4との間にそれぞれ継手バンド1
9、20により帰還通気管9を連結している。An upward branch joint portion 17 is provided at a portion of the laterally running main pipe 16 near the relay pipe 15, whereby the above-described ventilation start point portion 8 is constituted. This branch joint 1
7 and the branch joint part 4 described above, respectively, joint band 1
The return ventilation pipe 9 is connected by 9 and 20.
【0020】なお、中継管15を2〜3mの長さに設定
したのは、中継管15の終端部の近辺が最も空気圧力の
変動が顕著な部分であり、その部分の空気を帰還させる
ためである。The reason why the length of the relay pipe 15 is set to be 2 to 3 m is that the vicinity of the end portion of the relay pipe 15 is the portion where the air pressure fluctuation is most remarkable, and the air in that portion is returned. Is.
【0021】[0021]
【発明の効果】この発明は以上のごときものであるか
ら、横走り管内の圧縮空気を立て管下端部の気流誘引隙
間に帰還させるようにしたので、横走り管内の圧縮空気
が排水を突き抜けて立て管に入ったり、或いは横走り管
下流の他の配管内に入ることがない。従って、上層階の
器具への影響が無く、排水は円滑に横走り管を流下す
る。Since the present invention is as described above, the compressed air in the laterally running pipe is returned to the airflow guiding gap at the lower end of the vertical pipe, so that the compressed air in the laterally running pipe penetrates the drainage. It will not enter the standpipe or traverse the other pipe downstream of the pipe. Therefore, there is no effect on the equipment on the upper floors, and the drainage runs horizontally and flows down the pipe.
【0022】また、気流誘引隙間の部分において、立て
管下端が通気環流部より低い位置にあるように挿入され
ているので、立て管から排出される排水と気体の混合流
体が帰還通気管に吹き込むことがなく、圧縮空気の帰還
・循環作用を円滑ならしめる。Further, since the lower end of the vertical pipe is inserted in the airflow guide gap so as to be located at a position lower than the ventilation circulation part, the mixed fluid of the waste water and the gas discharged from the vertical pipe is blown into the return ventilation pipe. And smooth the return and circulation of compressed air.
【図1】この発明の基本構成図FIG. 1 is a basic configuration diagram of the present invention.
【図2】この発明の実施例の断面図FIG. 2 is a sectional view of an embodiment of the present invention.
【図3】従来例の概略図FIG. 3 is a schematic view of a conventional example.
1 排水管 2 立て管 3 脚部曲管 4 横走り管 5 通気管 6 気流誘引隙間 7 通気環流部 8 通気始点部 9 帰還通気管 11 フランジ 12 パッキン 13 押し輪 14 分岐継手部 15 中継管 16 横走り本管 17 分岐継手部 19、20 継手バンド 1 Drain pipe 2 Vertical pipe 3 Leg bend pipe 4 Lateral running pipe 5 Ventilation pipe 6 Airflow guide gap 7 Ventilation return part 8 Ventilation start point 9 Return ventilation pipe 11 Flange 12 Packing 13 Push ring 14 Branch joint part 15 Relay pipe 16 Horizontal Running main 17 Branch joints 19 and 20 Joint band
Claims (2)
走り管を接続してなる建物の排水装置において、上記立
て管の下端部を脚部曲管の上端部に挿入し、両者の間に
気流誘引隙間を設け、上記脚部曲管上端部に上記気流誘
引隙間に通じた通気環流部を設け、上記横走り管に設け
た通気始点部と上記通気環流部との間に帰還通気管を設
けたことを特徴とする建物の排水装置。1. In a drainage device for a building, wherein a horizontal running pipe is connected to a lower end of a drainage vertical pipe through a leg curved pipe, a lower end of the vertical pipe is inserted into an upper end of the leg curved pipe, An airflow guide gap is provided between the two, a ventilation circulation part communicating with the airflow guide gap is provided at the upper end of the leg bent pipe, and a ventilation start point provided in the laterally running pipe and the ventilation circulation part are provided. A drainage system for buildings, which is equipped with a return ventilation pipe.
〜3mの範囲内に設けたことを特徴とする請求項1に記
載の建物の排水装置。2. The ventilation starting point is 2 from the lower end of the leg bent pipe.
The drainage system for a building according to claim 1, wherein the drainage system is provided within a range of 3 m.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20981394A JPH0874303A (en) | 1994-09-02 | 1994-09-02 | Drainage of building |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20981394A JPH0874303A (en) | 1994-09-02 | 1994-09-02 | Drainage of building |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0874303A true JPH0874303A (en) | 1996-03-19 |
Family
ID=16579040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20981394A Pending JPH0874303A (en) | 1994-09-02 | 1994-09-02 | Drainage of building |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0874303A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008267040A (en) * | 2007-04-23 | 2008-11-06 | Kubota Corp | Piping structure for drainage |
KR101272643B1 (en) * | 2012-04-02 | 2013-06-10 | 주식회사 에브윈 | Positive air pressure attenuation device for drainage systems |
CN103290893A (en) * | 2013-07-03 | 2013-09-11 | *** | Double-hole drainage pipe |
KR101949791B1 (en) * | 2018-09-07 | 2019-02-19 | 이처례 | Dual structure fluid ejection device |
KR20210055569A (en) * | 2019-11-07 | 2021-05-17 | (주) 에이에이브이 | Drainage system using pressure relief device for drain pie |
-
1994
- 1994-09-02 JP JP20981394A patent/JPH0874303A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008267040A (en) * | 2007-04-23 | 2008-11-06 | Kubota Corp | Piping structure for drainage |
KR101272643B1 (en) * | 2012-04-02 | 2013-06-10 | 주식회사 에브윈 | Positive air pressure attenuation device for drainage systems |
CN103290893A (en) * | 2013-07-03 | 2013-09-11 | *** | Double-hole drainage pipe |
CN103290893B (en) * | 2013-07-03 | 2014-09-17 | *** | Double-hole drainage pipe |
KR101949791B1 (en) * | 2018-09-07 | 2019-02-19 | 이처례 | Dual structure fluid ejection device |
KR20210055569A (en) * | 2019-11-07 | 2021-05-17 | (주) 에이에이브이 | Drainage system using pressure relief device for drain pie |
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