JPH07268936A - Inverted siphon of vacuum type sewage - Google Patents
Inverted siphon of vacuum type sewageInfo
- Publication number
- JPH07268936A JPH07268936A JP5906794A JP5906794A JPH07268936A JP H07268936 A JPH07268936 A JP H07268936A JP 5906794 A JP5906794 A JP 5906794A JP 5906794 A JP5906794 A JP 5906794A JP H07268936 A JPH07268936 A JP H07268936A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- vacuum sewer
- vacuum
- sewer pipe
- valve
- 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.)
- Granted
Links
Landscapes
- Sewage (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は真空式下水道の伏越に係
り、特に、通気管内からドレンを容易に排出できるよう
にした真空式下水道の伏越に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the sewerage of a vacuum sewer system, and more particularly to the sewerage of a vacuum sewer system in which drainage can be easily discharged from a ventilation pipe.
【０００２】[0002]
【従来の技術及び先行技術】真空式下水道は、下水管内
を真空（完全な真空ではなく、減圧状態を指称する。）
にし、大気との圧力差を利用して汚水を収集するシステ
ムである。この真空式下水道システムにおいては、家庭
や工場等の衛生設備から排出される排水は、真空弁ユニ
ット（中継ユニット）から真空下水管を経て真空ステー
ションへ送られ、その後、下水処理施設へ送られる。2. Description of the Related Art Vacuum sewers have a vacuum inside the sewer pipe (not a complete vacuum but a depressurized state).
It is a system that collects sewage by utilizing the pressure difference with the atmosphere. In this vacuum sewer system, wastewater discharged from sanitary facilities such as homes and factories is sent from a vacuum valve unit (relay unit) to a vacuum station via a vacuum sewer pipe, and then to a sewage treatment facility.
【０００３】このような真空式下水道システムにおい
て、真空下水管路に登り勾配がある場合、その勾配にお
ける揚程は、真空ステーションで発生した真空度を消費
し、真空度の低下要因となり、搬送可能範囲を狭める原
因となる。In such a vacuum-type sewer system, when the vacuum sewer pipeline has an ascending slope, the lift at that slope consumes the vacuum degree generated at the vacuum station and causes a decrease in the vacuum degree, which makes it possible to transfer the material. Cause narrowing.
【０００４】そこで、汚水発生源から真空ステーション
までの真空下水管路に障害物が形成される場合におい
て、該障害物の揚程による真空度の低下を防止し、汚水
搬送可能範囲の拡大を図る伏越として、第２図に示す如
く、障害物（図では河川）１の一側に設けられた上流側
真空下水管２と、障害物（河川）１の他側に設けられた
下流側真空下水管３とを接続する真空式下水道の伏越で
あって、前記障害物１の下側をくぐり前記上流側真空下
水管２と下流側真空下水管３とを接続する通水管４と、
前記障害物１の上側を跨ぎ前記上流側真空下水管２と下
流側真空下水管３とを接続する通気管５とを備えてなる
真空式下水道の伏越が提案された（例えば、特開平４−
２５８４２４号、特開平５−１５６６９２〜１５６６９
５号公報）。Therefore, when an obstacle is formed in the vacuum sewer pipe from the source of sewage to the vacuum station, the degree of vacuum is prevented from lowering due to the lift of the obstacle, and the range in which sewage can be conveyed is expanded. As shown in FIG. 2, an upstream vacuum sewer pipe 2 provided on one side of an obstacle (river) 1 and a downstream vacuum sewer provided on the other side of the obstacle (river) 1 as shown in FIG. A sewer of a vacuum sewer connecting the water pipe 3, and a water pipe 4 that passes under the obstacle 1 and connects the upstream vacuum sewer pipe 2 and the downstream vacuum sewer pipe 3;
It has been proposed that the sewer of a vacuum sewer system comprises a ventilation pipe 5 that straddles the upper side of the obstacle 1 and connects the upstream side vacuum sewer pipe 2 and the downstream side vacuum sewer pipe 3 (for example, Japanese Patent Laid-Open No. Hei 4). −
No. 258424, JP-A-5-156692 to 15669.
No. 5).
【０００５】なお、第２図において、６は通気管５に設
けられた弁であり、１０は上流側真空下水管２から立ち
上げられた大気連通管であり、この大気連通管１０には
弁９が設けられている。また、１１は気液分離器であ
り、上流側真空下水管２から通気管５に水が流入するこ
とを防いでいる。通気管５はこの気液分離器１１の上部
に接続されている。In FIG. 2, reference numeral 6 is a valve provided in the ventilation pipe 5, 10 is an atmosphere communication pipe raised from the upstream vacuum sewer pipe 2, and this atmosphere communication pipe 10 has a valve. 9 is provided. Further, 11 is a gas-liquid separator which prevents water from flowing from the upstream side vacuum sewer pipe 2 into the ventilation pipe 5. The ventilation pipe 5 is connected to the upper part of the gas-liquid separator 11.
【０００６】このように構成された第２図の真空式下水
道の伏越において、通常時にあっては弁６は開弁され、
弁９は閉弁されている。そして上流側真空下水管２内を
流れてきた汚水は、通水管４を水頭ＨA に従って自然流
下する如くしてくぐり抜けて下流側真空下水管３に達
し、該下流側真空下水管３内をさらに下流に向って流れ
る。一方、下流側真空下水管３内の真空は通気管５を経
て上流側真空下水管２に伝達され、これによって上流側
真空下水管２に設けられている揚程（図示略）において
エアリフト作用が行なわれる。In the construction of the vacuum sewer shown in FIG. 2 constructed as above, the valve 6 is normally opened,
The valve 9 is closed. Then, the sewage flowing through the upstream vacuum sewer pipe 2 passes through the water pipe 4 in accordance with the head H A of the wastewater, passes through the downstream vacuum sewer pipe 3, and reaches the downstream vacuum sewer pipe 3 further. Flows downstream. On the other hand, the vacuum in the downstream side vacuum sewer pipe 3 is transmitted to the upstream side vacuum sewer pipe 2 via the ventilation pipe 5, whereby an air lift action is performed in the lift (not shown) provided in the upstream side vacuum sewer pipe 2. Be done.
【０００７】このような真空式下水道の伏越であれば、
下流側真空下水管３と上流側真空下水管２とを連通する
通気管５により、真空ステーションで発生した負圧を常
時、真空下水管内に伝えているので、真空ステーション
で発生した負圧が、この障害物をくぐる際の真空下水管
における揚水のためには消費されず、この負圧が他箇所
での揚程に有効に利用される。[0007] With such a vacuum sewer system,
Since the negative pressure generated at the vacuum station is always transmitted to the inside of the vacuum sewer pipe by the ventilation pipe 5 that connects the downstream side vacuum sewer pipe 3 and the upstream side vacuum sewer pipe 2, the negative pressure generated at the vacuum station is It is not consumed for pumping water in the vacuum sewer pipe when passing through this obstacle, and this negative pressure is effectively used for pumping at other locations.
【０００８】なお、汚水の通水と共に通水管４に堆積物
がたまった場合には、この堆積物を次のようにして排出
する。即ち、流下水量の少ない夜間や休業日などにまず
弁６を閉じ、次いで上流側真空下水管２側の弁９を開け
る等して上流側真空下水管２内にエアを吸入させると共
に、下流側真空下水管３内を真空ステーションにより減
圧する。そうすると、通水管４内がエアブローされ、堆
積物が下流側真空下水管３へ排出されるが、その際、エ
アリフト効果により、通水管４内の堆積物が効率的に下
流側真空下水管３側へ押し流されて排出される。When deposits are accumulated in the water pipe 4 as the sewage is passed, the deposits are discharged as follows. That is, the valve 6 is first closed on the night or holidays when the amount of flowing water is small, and then the valve 9 on the upstream vacuum sewer pipe 2 side is opened to suck air into the upstream vacuum sewer pipe 2 and at the same time, to the downstream side. The inside of the vacuum sewer pipe 3 is depressurized by a vacuum station. Then, the inside of the water pipe 4 is air-blown and the deposit is discharged to the downstream side vacuum sewer pipe 3. At that time, the air lift effect causes the deposit in the water pipe 4 to efficiently reach the downstream side vacuum sewer pipe 3 side. Is washed away and discharged.
【０００９】[0009]
【発明が解決しようとする課題】上記公知の真空式下水
道の伏越においては、通水管のブローアウトを行なうに
当り弁６を閉、弁９を開としたときに、上流側真空下水
管２側へも大気が流入し、上流側真空下水管２の上流の
方が負圧の強い状態となり、上流側真空下水管２内にお
いて逆流現象が生じる。In the above-mentioned known sewer of the vacuum type sewer, when the valve 6 is closed and the valve 9 is opened to blow out the water pipe, the upstream vacuum sewer pipe 2 is opened. The atmosphere also flows into the upstream side, and the upstream side of the upstream vacuum sewer pipe 2 has a stronger negative pressure, and a backflow phenomenon occurs in the upstream vacuum sewer pipe 2.
【００１０】本発明は上記従来の問題点を解決し、通水
管のブローアウト操作時における上流側真空下水管内の
逆流が防止される真空式下水道の伏越を提供することを
目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and to provide a sewage system for a vacuum sewer system in which backflow in the upstream side vacuum sewer pipe is prevented during blowout operation of the water pipe.
【００１１】[0011]
【課題を解決するための手段】請求項１の真空式下水道
の伏越は、障害物の一側に設けられた上流側真空下水管
と、障害物の他側に設けられた下流側真空下水管とを接
続する真空式下水道の伏越であって、前記障害物の下側
をくぐり前記上流側真空下水管と下流側真空下水管とを
接続する通水管と、前記下流側真空下水管と上流側真空
下水管とを連通しており、該下流側真空下水管の負圧を
上流側真空下水管に伝達するための通気管と、を備えて
なる真空式下水道の伏越において、該上流側真空下水管
内における逆流を阻止する弁を設けたことを特徴とす
る。According to the first aspect of the present invention, the sewer of a vacuum sewer system comprises an upstream vacuum sewer pipe provided on one side of an obstacle and a downstream vacuum sewer provided on the other side of the obstacle. A concealment of a vacuum sewer connecting a water pipe, a water pipe connecting the upstream vacuum sewer pipe and a downstream vacuum sewer pipe under the obstacle, and the downstream vacuum sewer pipe. In the concealment of the vacuum sewer system, which is in communication with the upstream side vacuum sewer pipe, and which comprises a ventilation pipe for transmitting the negative pressure of the downstream side vacuum sewer pipe to the upstream side vacuum sewer pipe, A valve is provided to prevent backflow in the side vacuum sewer pipe.
【００１２】[0012]
【作用】本発明の真空式下水道の伏越においては、上流
側真空下水管における逆流が弁によって阻止される。In the sewerage of the vacuum sewer according to the present invention, the valve prevents backflow in the upstream vacuum sewer pipe.
【００１３】[0013]
【実施例】以下に図面を参照して本発明の実施例につい
てより具体的に説明する。第１図は本発明の真空式下水
道の伏越の一実施例を示す断面図である。Embodiments of the present invention will be described more specifically below with reference to the drawings. FIG. 1 is a cross-sectional view showing one embodiment of the sewer of the vacuum sewer according to the present invention.
【００１４】本実施例では、上流側真空下水管２に、下
流側へ向う流水のみを許容する逆止弁８が設けられてい
る。その他の構成は第２図と同一である。In this embodiment, the upstream side vacuum sewer pipe 2 is provided with a check valve 8 which allows only the flowing water flowing toward the downstream side. Other configurations are the same as those in FIG.
【００１５】このように構成された真空式下水道の伏越
において、第１図の通り、通常時にあっては、三方弁１
３は気液分離器１２と通気管５とを連通し、通気管５と
大気との連通は阻止している。上流側真空下水管２内を
流れてきた汚水Ｗは、通水管４を自然流下する如くして
くぐり抜け下流側真空下水管３に達し、該下流側真空下
水管３内をさらに下流に向って流れる。下流側真空下水
管３内の真空は通気管５を経て上流側真空下水管２に伝
達され、これによって上流側真空下水管２に設けられて
いる揚程（図示略）においてエアリフト作用が行なわれ
る。In the sewer of the vacuum type sewer constructed in this way, as shown in FIG. 1, in the normal time, the three-way valve 1
Reference numeral 3 connects the gas-liquid separator 12 and the ventilation pipe 5, and blocks the communication between the ventilation pipe 5 and the atmosphere. The sewage W that has flowed in the upstream vacuum sewer pipe 2 passes through the water pipe 4 as it naturally flows, reaches the downstream vacuum sewer pipe 3, and flows further downstream in the downstream vacuum sewer pipe 3. . The vacuum in the downstream side vacuum sewer pipe 3 is transmitted to the upstream side vacuum sewer pipe 2 via the ventilation pipe 5, whereby an air lift action is performed in the lift (not shown) provided in the upstream side vacuum sewer pipe 2.
【００１６】弁６を閉、弁９を開とすると、上流側真空
下水管２内が大気に連通すると共に、下流側真空下水管
３内の負圧がすべて通水管４にかかるため、通水管４内
の水は下流側真空下水管３へ吸い出され、これにより通
水管４のブローアウトが行なわれる。When the valve 6 is closed and the valve 9 is opened, the inside of the upstream vacuum sewer pipe 2 communicates with the atmosphere, and all the negative pressure in the downstream vacuum sewer pipe 3 is applied to the water pipe 4, so the water pipe The water in 4 is sucked out to the downstream vacuum sewer pipe 3, whereby the water pipe 4 is blown out.
【００１７】このブローアウト時においても、逆止弁８
により、該逆止弁１２よりも上流側における汚水の逆流
が防止される。Even at this blowout, the check valve 8
As a result, backflow of dirty water on the upstream side of the check valve 12 is prevented.
【００１８】第３図は本発明の別の実施例に係る真空式
下水道の伏越の要部（気液分離器部分）の構成を示す断
面図である。FIG. 3 is a cross-sectional view showing the construction of the main portion (gas-liquid separator portion) of the sewer of the vacuum sewer system according to another embodiment of the present invention.
【００１９】本実施例においても、河川１の一方の側に
上流側真空下水管２が配設され、他方の側に下流側真空
下水管３が配設され、これらが通水管４及び通気管５を
介して接続されている。上流側真空下水管２と通水管４
とは気液分離器１２を介して接続されており、この気液
分離器１２はマンホール１３内に設置されている。Also in this embodiment, the upstream vacuum sewage pipe 2 is arranged on one side of the river 1, and the downstream vacuum sewage pipe 3 is arranged on the other side, which are the water passage pipe 4 and the ventilation pipe. It is connected via 5. Upstream vacuum sewer pipe 2 and water passage pipe 4
Are connected to each other via a gas-liquid separator 12, and this gas-liquid separator 12 is installed in a manhole 13.
【００２０】この気液分離器１２は、下方が窄まった形
状の略円筒形のドラム１４と、このドラム１４の側周面
に設けられた流入口１５と、下端に設けられた流出口１
６と、上部に設けられた筒状部１７等を備えて構成され
ている。流入口１５には仕切弁１８を介して前記上流側
真空下水管２が接続され、流出口１６にはフランジ１９
を介して通水管４が接続されている。１８ａは仕切弁１
８のハンドルである。The gas-liquid separator 12 has a substantially cylindrical drum 14 with a downwardly constricted shape, an inflow port 15 provided on the side peripheral surface of the drum 14, and an outflow port 1 provided at the lower end.
6 and a tubular portion 17 and the like provided on the upper portion. The upstream vacuum sewer pipe 2 is connected to the inflow port 15 via a sluice valve 18, and the outflow port 16 is provided with a flange 19.
The water pipe 4 is connected via. 18a is a gate valve 1
8 handles.
【００２１】このドラム１４の側周面を貫通するように
してダクト２０が設置されており、該ダクト２０にフラ
ンジ２１を介して通気管５が接続されている。A duct 20 is installed so as to penetrate the side peripheral surface of the drum 14, and a ventilation pipe 5 is connected to the duct 20 via a flange 21.
【００２２】前記筒状部１７には、シャフト２２の外周
面の雄螺子が螺合した雌螺子孔２３が設けられており、
シャフト２２が上下方向に螺進可能に設けられている。
このシャフト２２の下端には弁体２４が設けられてお
り、前記ダクト２０の上端の弁座２５と筒状部１７の下
端の弁座２６に対しこの弁体２４が着座可能とされてい
る。シャフト２２の上端にはハンドル２７が設けられて
いる。筒状部１７の側周面には通気口２８が設けられて
いる。The tubular portion 17 is provided with a female screw hole 23 into which a male screw on the outer peripheral surface of the shaft 22 is screwed.
The shaft 22 is provided so as to be vertically movable.
A valve body 24 is provided at the lower end of the shaft 22, and the valve body 24 can be seated on the valve seat 25 at the upper end of the duct 20 and the valve seat 26 at the lower end of the tubular portion 17. A handle 27 is provided on the upper end of the shaft 22. A vent hole 28 is provided on the side peripheral surface of the tubular portion 17.
【００２３】このマンホール１３には蓋２９が被せられ
ている。この蓋２９には通気筒３０が立設され、この通
気筒３０には通気口３１が開口されている。The manhole 13 is covered with a lid 29. A through cylinder 30 is erected on the lid 29, and a vent hole 31 is opened in the through cylinder 30.
【００２４】このように構成された真空式下水道の伏越
において、仕切弁１８を開弁しておくと共に、弁体２４
を上側の弁座２６に着座させておくと、従来の伏越と同
様に、上流側真空下水管２を流れてきた水は、気液分離
器１２において気液分離され、水が通水管４を介して下
流側真空下水管３に送られる。また、下流側真空下水管
３内の真空圧は、通気管５を介して上流側真空下水管２
に伝達される。When the vacuum sewer constructed as described above is installed, the sluice valve 18 is opened and the valve body 24 is opened.
When the valve seat 26 is seated on the upper side, the water that has flowed through the upstream vacuum sewer pipe 2 is separated into gas and liquid in the gas-liquid separator 12, and the water is passed through the water passage pipe 4 as in the case of the conventional cover. And is sent to the downstream vacuum sewer pipe 3 via. Further, the vacuum pressure in the downstream side vacuum sewer pipe 3 is increased by the vacuum pressure in the upstream side vacuum sewer pipe 2 via the ventilation pipe 5.
Be transmitted to.
【００２５】通水管４をブローアウトするときには、仕
切弁１８を閉弁すると共に、第３図に示す如く、弁体２
４を下側の弁座２５に着座させる。そうすると、気液分
離器１２と上流側真空下水管２とが遮断され、且つ通気
管５が遮閉された状態となる。また、気液分離器１２内
は、通気口２８，３１を介して大気に連通した状態とな
る。これにより、気液分離器１２内に大気が流入し、通
水管４内の水は下流側真空下水管３内の真空圧によって
吸引され、下流側真空下水管３内に吸い出され、ブロー
アウトが行なわれる。ブローアウト終了後は、再び弁体
２４を上側の弁座２６に着座させるようにハンドル２７
を回すと共に、仕切弁１８を開く。When the water pipe 4 is blown out, the sluice valve 18 is closed and, as shown in FIG.
4 is seated on the lower valve seat 25. Then, the gas-liquid separator 12 and the upstream vacuum sewer pipe 2 are shut off, and the ventilation pipe 5 is shut off. Further, the inside of the gas-liquid separator 12 is in a state of communicating with the atmosphere through the vent holes 28 and 31. As a result, the atmosphere flows into the gas-liquid separator 12, the water in the water pipe 4 is sucked by the vacuum pressure in the downstream vacuum sewer pipe 3, is sucked into the downstream vacuum sewer pipe 3, and is blown out. Is performed. After the blowout is completed, the handle 27 is set so that the valve body 24 is seated on the upper valve seat 26 again.
And the sluice valve 18 is opened.
【００２６】この第３図の伏越においては、通気管５を
遮断する機構や、仕切弁１８あるいは上流側真空下水管
２を大気に連通させる機構がすべて気液分離器１２に一
体に設けられており、ハンドル１８ａ及び２７を操作す
るだけで通常の下水収集作動状態と、ブローアウト作動
とを行なわせることができる。また、これらの流路切替
用の機構が気液分離器１２と共にひとまとめにされてマ
ンホール１３内に設置されており、設置作業が容易であ
る。加えて、このマンホール１３が蓋２９で覆われ、気
液分離器１２やそれに付属する機構が悪戯を受けるおそ
れがまったくない。In the concealment shown in FIG. 3, a mechanism for shutting off the ventilation pipe 5 and a mechanism for communicating the sluice valve 18 or the upstream side vacuum sewer pipe 2 to the atmosphere are all provided integrally with the gas-liquid separator 12. Therefore, the normal sewage collection operation state and the blowout operation can be performed only by operating the handles 18a and 27. In addition, these flow path switching mechanisms are collectively installed together with the gas-liquid separator 12 in the manhole 13, and the installation work is easy. In addition, since the manhole 13 is covered with the lid 29, there is no possibility that the gas-liquid separator 12 and the mechanism attached thereto will be mischievous.
【００２７】上記実施例では、ハンドル１８ａ，２７を
回して仕切弁１８の開閉及び弁体２４の上下を行なうよ
うにしているが、本発明ではこれらを電動式あるいは真
空駆動式とし、遠隔操作するようにしても良い。In the above embodiment, the handles 18a and 27 are turned to open and close the sluice valve 18 and move the valve body 24 up and down. However, in the present invention, these are electrically operated or vacuum driven and are operated remotely. You may do it.
【００２８】上記実施例では、通気管５は障害物（河川
１）の上側に配設されているが、障害物の下側に配設し
ても良い。Although the ventilation pipe 5 is arranged above the obstacle (river 1) in the above embodiment, it may be arranged below the obstacle.
【００２９】[0029]
【発明の効果】以上詳述した通り、本発明の真空式下水
道の伏越は、通水管のブローアウト時における上流側真
空下水管内の汚水の逆流が確実に防止される。また、こ
のため、ブローアウト終了後、真空下水道を早期に定常
運転状態に復帰させることができる。As described above in detail, in the sewerage of the vacuum sewer according to the present invention, the backflow of dirty water in the upstream side vacuum sewer pipe is surely prevented when the water pipe is blown out. Therefore, the vacuum sewer can be quickly returned to the steady operation state after the blowout is completed.
【図１】本発明の真空式下水道の伏越の一実施例を示す
断面図である。FIG. 1 is a cross-sectional view showing an embodiment of a sewer of a vacuum sewer according to the present invention.
【図２】従来の真空式下水道の伏越を示す断面図であ
る。FIG. 2 is a cross-sectional view showing the concealment of a conventional vacuum sewer system.
【図３】別の実施例に係る伏越の要部を示す断面図であ
る。FIG. 3 is a cross-sectional view showing a main part of a sheet cloth according to another embodiment.
１ 河川 ２ 上流側真空下水管 ３ 下流側真空下水管 ４ 通水管 ５ 通気管 ８ 逆止弁 １１，１２ 気液分離器 １３ 三方弁 １８ 仕切弁 1 River 2 Upstream vacuum sewer pipe 3 Downstream vacuum sewer pipe 4 Water passage pipe 5 Vent pipe 8 Check valve 11, 12 Gas-liquid separator 13 Three-way valve 18 Gate valve
フロントページの続き (72)発明者 下舞 寿郎 東京都世田谷区深沢１−32−３−201 (72)発明者 山中 潤一 愛知県常滑市鯉江本町５丁目１番地 株式 会社イナックス内 (72)発明者 大串 和弘 東京都江東区豊洲二丁目１番１号 石川島 播磨重工業株式会社内 (72)発明者 村木 良民 大阪府高槻市宮田町１−１−８ 株式会社 酉島製作所内Front Page Continuation (72) Inventor Juro Shimomai 1-32-3-201 Fukasawa, Setagaya-ku, Tokyo (72) Inventor Jun-ichi Yamanaka 5-1-1, Koiemotocho, Tokoname City, Aichi Prefecture Inax Corporation (72) Invention Kazuhiro Ogushi 2-1-1, Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Co., Ltd. (72) Inventor Yoshimin Muraki 1-1-8 Miyatacho, Takatsuki-shi, Osaka Prefecture Torishima Manufacturing Co., Ltd.
Claims (1)
水管と、障害物の他側に設けられた下流側真空下水管と
を接続する真空式下水道の伏越であって、 前記障害物の下側をくぐり前記上流側真空下水管と下流
側真空下水管とを接続する通水管と、 前記下流側真空下水管と上流側真空下水管とを連通して
おり、該下流側真空下水管の負圧を上流側真空下水管に
伝達するための通気管と、を備えてなる真空式下水道の
伏越において、 該上流側真空下水管内における逆流を阻止する弁を設け
たことを特徴とする真空式下水道の伏越。1. A concealment of a vacuum sewer system, which connects an upstream vacuum sewer pipe provided on one side of an obstacle and a downstream vacuum sewer pipe provided on the other side of the obstacle, wherein: A water pipe that passes through the lower side of an obstacle and connects the upstream vacuum sewer pipe and the downstream vacuum sewer pipe, and connects the downstream vacuum sewer pipe and the upstream vacuum sewer pipe to the downstream vacuum A vent pipe for transmitting a negative pressure of the sewer pipe to the upstream vacuum sewer pipe, and a valve for blocking backflow in the upstream vacuum sewer pipe in the concealment of the vacuum sewer system. The vacuum sewer sewer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05906794A JP3265809B2 (en) | 1994-03-29 | 1994-03-29 | Sewage of vacuum sewer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05906794A JP3265809B2 (en) | 1994-03-29 | 1994-03-29 | Sewage of vacuum sewer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07268936A true JPH07268936A (en) | 1995-10-17 |
| JP3265809B2 JP3265809B2 (en) | 2002-03-18 |
Family
ID=13102642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05906794A Expired - Fee Related JP3265809B2 (en) | 1994-03-29 | 1994-03-29 | Sewage of vacuum sewer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3265809B2 (en) |
-
1994
- 1994-03-29 JP JP05906794A patent/JP3265809B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3265809B2 (en) | 2002-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6243887B1 (en) | Sewer system | |
| JPH07268936A (en) | Inverted siphon of vacuum type sewage | |
| CN216552215U (en) | Cavity suction type vacuum sewage discharge system | |
| JP2002201690A (en) | Trap device with auxiliary seal water supply mechanism | |
| JP2001262655A (en) | Ventilation apparatus for drainage | |
| JPH07268934A (en) | Inverted siphon of vacuum type sewage | |
| JPH07229191A (en) | Inverted siphon of vacuum type sewage | |
| WO1992014889A1 (en) | Inverted siphon of vacuum type sewerage | |
| JPH1018394A (en) | Aqueduct bridge of vacuum type sewerage and water pouring method | |
| JPH09144119A (en) | Inverted siphon for vacuum type sewerage | |
| JPH05156692A (en) | Laying of vacuum sewerage | |
| JPH07268933A (en) | Inverted siphon of vacuum type sewage | |
| JP2566698B2 (en) | Emergency sewer outlet for vacuum sewer | |
| JP3792332B2 (en) | Vacuum sewer system and manhole pump unit | |
| JP3513347B2 (en) | Check valve for vacuum drain | |
| JP2526427B2 (en) | Shugetsu of vacuum sewer | |
| JP2869696B2 (en) | Air intake device for vacuum sewage collection system | |
| JP2639261B2 (en) | Shugetsu of vacuum sewer | |
| JPH07229192A (en) | Inverted siphon of vacuum type sewage | |
| JP3186402B2 (en) | How to clean the underground water pipe of a vacuum sewer | |
| JP2002194807A (en) | Vacuum type sewerage | |
| JP2715836B2 (en) | Sewage of vacuum sewer | |
| JP3265808B2 (en) | Sewage of vacuum sewer | |
| JP2768105B2 (en) | Vacuum sewer aqueduct | |
| JP4013400B2 (en) | Fushie structure of vacuum sewer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| R370 | Written measure of declining of transfer procedure |
Free format text: JAPANESE INTERMEDIATE CODE: R370 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090111 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 7 Free format text: PAYMENT UNTIL: 20090111 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100111 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20110111 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 10 Free format text: PAYMENT UNTIL: 20120111 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 10 Free format text: PAYMENT UNTIL: 20120111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130111 Year of fee payment: 11 |
|
| LAPS | Cancellation because of no payment of annual fees |