JPH0979383A - Water sealing device - Google Patents
Water sealing deviceInfo
- Publication number
- JPH0979383A JPH0979383A JP24125995A JP24125995A JPH0979383A JP H0979383 A JPH0979383 A JP H0979383A JP 24125995 A JP24125995 A JP 24125995A JP 24125995 A JP24125995 A JP 24125995A JP H0979383 A JPH0979383 A JP H0979383A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water storage
- storage chamber
- pressure
- sealing device
- 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
- Sealing Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は気密室内で生じた水分を
気密室の気密性を保ちつつ外部に排出あるいは気密室内
に要する水分を気密性を保ちつつ外部より供給するよう
にした水封装置に関するもので、頻繁に内外気圧変動を
受け、かつ装置の高さ方向や重量に制約のある高速鉄道
車両等に好適なものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-sealing device for discharging water generated in an airtight chamber to the outside while maintaining the airtightness of the airtight chamber or supplying water required for the airtight chamber from the outside while maintaining the airtightness. The present invention is suitable for high-speed railway vehicles and the like, which are frequently subject to internal and external atmospheric pressure fluctuations and have restrictions in the height direction and weight of the device.
【０００２】[0002]
【従来の技術】高速で走行する車両においてはトンネル
の通過や車両のすれ違いにより外部圧力が数百ｍｍＡｑ
変動するが、これが室内に伝わると乗客に不快感を与え
るので室内を気密化している。気密室内において水分を
生じる場合、これを外部に排出する装置として気密の度
合いが比較的低い場合は貯水室内の水頭を利用した水封
装置が使用されている。たとえば、室内からは冷房装置
のドレンや洗面所の排水などを生じるので、これを気密
室外に排出する部分に前述の水封装置を使用している。2. Description of the Related Art In a vehicle running at a high speed, an external pressure of several hundred mmAq is caused by passing through a tunnel or passing each other.
Although it fluctuates, if this is transmitted to the room, it will make passengers uncomfortable, so the room is made airtight. When water is generated in the airtight chamber, a water sealing device that uses the water head in the water storage chamber is used as a device for discharging the water to the outside when the degree of airtightness is relatively low. For example, since the drainage of the cooling device and the drainage of the washroom are generated from the inside of the room, the above-mentioned water sealing device is used in the part for discharging this to the outside of the airtight room.
【０００３】車両用の水封装置としては、流入貯水室と
流出貯水室をサイフォン管で連結した構成のサイフォン
式水封装置がある（特公昭５４−１１４５３号公報）。As a water sealing device for a vehicle, there is a siphon type water sealing device in which an inflow water storage chamber and an outflow water storage chamber are connected by a siphon pipe (Japanese Patent Publication No. 54-11453).
【０００４】[0004]
【発明が解決しようとする課題】従来のサイフォン式水
封装置の耐気圧変動量はサイフォン管の高さ寸法とサイ
フォン管の下端から排水管の上端までの高さ寸法とによ
って定まる。このため、耐気圧性を向上させるには高さ
寸法を大きくする必要がある。The atmospheric pressure fluctuation amount of the conventional siphon type water sealing device is determined by the height dimension of the siphon tube and the height dimension from the lower end of the siphon tube to the upper end of the drainage pipe. Therefore, it is necessary to increase the height dimension in order to improve the atmospheric pressure resistance.
【０００５】一方、鉄道車両の場合は、水封装置をとり
つけられる高さに限界があり、さらなる車両の高速化に
よってより高い耐気圧変動量が要求される場合には、従
来の水封装置では対応できない。On the other hand, in the case of a railway vehicle, there is a limit to the height at which the water sealing device can be mounted, and when a higher atmospheric pressure fluctuation amount is required due to further speeding up of the vehicle, the conventional water sealing device cannot I can not cope.
【０００６】本発明の目的は高さ寸法の小い高耐圧の水
封装置を提供することにある。An object of the present invention is to provide a high pressure resistant water sealing device having a small height dimension.
【０００７】[0007]
【課題を解決するため手段】本発明は、上端側がそれぞ
れ開口したＵ字管を少なくとも２つ備え、一方のＵ字管
の一端は流入口に、他端は他方のＵ字管の一端に接続し
ており、他方のＵ字管の他端は排出口に接続しており、
それぞれのＵ字管の上端側同士を小さな穴で連通させて
いること、を特徴とする。According to the present invention, at least two U-shaped pipes each having an open upper end are connected. One end of one U-shaped pipe is connected to an inlet and the other end is connected to one end of another U-shaped pipe. And the other end of the other U-shaped tube is connected to the outlet,
It is characterized in that the upper end sides of the respective U-shaped tubes are communicated with each other by a small hole.
【０００８】[0008]
【作用】２つのＵ字管を直列に接続しているので、各Ｕ
字管の耐気密高さの２倍まで圧力差に対応できる。この
ため、装置の高さを小さくできる。また、それぞれのＵ
字管を小さな穴で連通させているので、気密室内の空気
の一部を気密室内の気圧に変動を及ぼさない微量の範囲
で外部に逃す（負圧の場合は取り入れる）ことができ
る。このため、圧力が加わった状態で排水を継続でき
る。[Function] Since two U-shaped tubes are connected in series, each U-shaped tube
It can handle pressure difference up to twice the airtightness of the character tube. Therefore, the height of the device can be reduced. Also, each U
Since the character tubes are communicated with each other through a small hole, a part of the air in the airtight chamber can be released to the outside (in the case of a negative pressure, take in) in a minute range that does not affect the atmospheric pressure in the airtight chamber. Therefore, the drainage can be continued with the pressure applied.
【０００９】[0009]
【実施例】以下本発明の一実施例を図１〜図４によって
説明する。図１はＵ字管を２連に配置した例を示してお
り、貯水室内には水が充満している状態を示している。
貯水室６には気密室に通ずる流入管４を設け、貯水室６
と貯水室７とはＵ字管を形成している。また、貯水室６
と貯水室７とは水路に対して充分に高い位置においてオ
リフィス１によっても結合している。つまり、貯水室６
と貯水室７とはＵ字管の水路の上端を空気路のオリフィ
ス１で結合されていることになる。貯水室８と貯水室９
は堰１２によって区切られており水は堰１２を乗り越え
て貯水室８に入る。貯水室８と貯水室９とは貯水室６と
貯水室７と同様にＵ字管とオリフィス２で結合されてい
る。これによって２連のＵ字管を構成している。オリフ
ィス２の形状及び断面積はオリフィス１と等しくする。
オリフィス１，２の穴径は６ｍｍ程度である。最終的に
水は貯水室９より排水管１４により外部に排出される。
貯水室６，７，８，９のそれぞれの容積はほぼ同一であ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows an example in which two U-shaped pipes are arranged, and shows a state in which the water storage chamber is filled with water.
The water storage chamber 6 is provided with an inflow pipe 4 communicating with the airtight chamber,
The water storage chamber 7 and the water storage chamber 7 form a U-shaped pipe. Also, the water storage room 6
The water storage chamber 7 and the water storage chamber 7 are also connected by the orifice 1 at a position sufficiently high with respect to the water channel. That is, the water storage room 6
The water storage chamber 7 and the water storage chamber 7 are connected by the orifice 1 of the air passage at the upper end of the U-shaped water passage. Water storage room 8 and water storage room 9
Are separated by a weir 12, and the water passes over the weir 12 and enters the water storage chamber 8. Like the water storage chamber 6 and the water storage chamber 7, the water storage chamber 8 and the water storage chamber 9 are connected by a U-shaped tube and an orifice 2. This forms two U-shaped tubes. The shape and cross-sectional area of the orifice 2 are the same as those of the orifice 1.
The hole diameter of the orifices 1 and 2 is about 6 mm. Finally, the water is discharged from the water storage chamber 9 to the outside by the drain pipe 14.
The volumes of the water storage chambers 6, 7, 8 and 9 are almost the same.
【００１０】図２は気密室内に対し外部の圧力が低くな
り気密が破れる直前の状態を示している。すなわち貯水
室６上部の圧力をＰ１（内圧）、貯水室７、貯水室８上
部の圧力をＰ２、貯水室９上部の圧力をＰ３（外圧）、
とする。オリフィス１、オリフィス２の作用により、 Ｐ２＝（Ｐ１＋Ｐ３）／２----式１ の関係が成り立つ。つまり、図１の如く２連Ｕ字管式の
場合 Ｐ１−Ｐ２＝ （Ｐ１−Ｐ３）／２----式２ の関係が成り立つ。FIG. 2 shows a state immediately before the airtightness is broken due to a lower external pressure in the airtight chamber. That is, the pressure above the water storage chamber 6 is P1 (internal pressure), the pressure above the water storage chamber 7 and the water storage chamber 8 is P2, and the pressure above the water storage chamber 9 is P3 (external pressure).
And Due to the actions of the orifices 1 and 2, the relationship of P2 = (P1 + P3) / 2 ---- Equation 1 is established. That is, as shown in FIG. 1, in the case of the double U-tube type, the relationship of P1-P2 = (P1-P3) / 2 ---- Equation 2 is established.
【００１１】この場合の水頭Ｈ＝ｈ１＋ｈ２となる。例
えばＵ字管１本当たりの水頭を５００ｍｍＡｑとすると
装置全体では５００×２＝１０００ｍｍＡｑとなる。こ
のため、装置の高さ寸法を小さくしておおきな水頭が得
られるものである。In this case, the water head H = h1 + h2. For example, assuming that the water head per U-shaped tube is 500 mmAq, the whole apparatus has 500 × 2 = 1000 mmAq. Therefore, a large head can be obtained by reducing the height of the device.
【００１２】図３にその後、圧力差が無くなりＰ１＝Ｐ
２となった状態を示す。その際にオリフィス１、２の作
用によりＰ１＝Ｐ２＝Ｐ３となる。そして水位はＵ字管
の作用で貯水室６と貯水室７が等しくなり、貯水室８と
貯水室９が等しくなる。After that, in FIG. 3, the pressure difference disappears and P1 = P
The state becomes 2. At that time, P1 = P2 = P3 due to the action of the orifices 1 and 2. With respect to the water level, the water storage chamber 6 and the water storage chamber 7 become equal, and the water storage chamber 8 and the water storage chamber 9 become equal, due to the action of the U-shaped pipe.
【００１３】この状態で注水口より注水されれば、貯水
室６の水位上昇に伴って貯水室７の水位も上昇する。貯
水室７の水位が上昇すると、貯水室７貯水室８の上部空
気層が圧縮されオリフィスがない場合、圧力上昇を招
く。この圧力上昇が水路抵抗となり貯水室６に水頭が立
ち、排水ができないことになる。ところが本実施例によ
れば、貯水室７、８の上部にオリフィス１、２が設けて
あり、オリフィス１、２により貯水室６、７、８、９の
水位と無関係にＰ１＝Ｐ２＝Ｐ３となる。つまり、圧力
上昇による水路抵抗は発生しない。注水が続行され、貯
水室７が満水となると堰１２を乗り越えて貯水室８と貯
水室９も満水状態になる。そして排水口１４から排水さ
れる。When water is injected from the water injection port in this state, the water level in the water storage chamber 6 rises as the water level in the water storage chamber 6 rises. When the water level in the water storage chamber 7 rises, the upper air layer of the water storage chamber 7 and the water storage chamber 8 is compressed, resulting in an increase in pressure if there is no orifice. This increase in pressure causes water channel resistance, which causes the head of water to rise in the water storage chamber 6 and drainage cannot be performed. However, according to this embodiment, the orifices 1 and 2 are provided above the water storage chambers 7 and 8, and P1 = P2 = P3 by the orifices 1 and 2 irrespective of the water level in the water storage chambers 6, 7, 8, and 9. Become. In other words, waterway resistance due to pressure increase does not occur. When the water injection is continued and the water storage chamber 7 becomes full, the weir 12 is overcome and the water storage chamber 8 and the water storage chamber 9 are also filled. Then, it is drained from the drain port 14.
【００１４】図４には逆に気密室内に対し外部の圧力が
高くなり、気密が破れる直前の状態を示している。オリ
フィス１、オリフィス２の作用により、前記式１が成立
し、式３が成立する。On the contrary, FIG. 4 shows a state immediately before the airtightness is broken due to an increase in the external pressure in the airtight chamber. By the action of the orifice 1 and the orifice 2, the equation 1 is established and the equation 3 is established.
【００１５】Ｐ２−Ｐ１＝（Ｐ３−Ｐ１）／２----式３ の関係が成り立つ。The relation of P2-P1 = (P3-P1) / 2 ---- Equation 3 holds.
【００１６】鉄道車両において、高速でトンネルに突入
したり、トンネル内で対向車両にすれちがった場合にお
いては、車外の圧力が正圧の方向に大きくなったり、負
圧の方向に大きくなったりする。これによって社内圧も
大きく変化する。この圧力変化に対して水封装置は水封
することが必要である。前記の鉄道車両において、車内
と車外の圧力差が最大の時から通常の圧力状態に戻るま
での時間は約２０秒程度である。When a railway vehicle rushes into a tunnel at a high speed or passes by an oncoming vehicle in the tunnel, the pressure outside the vehicle increases in the positive pressure direction or in the negative pressure direction. This also changes the company pressure. It is necessary for the water sealing device to seal against this pressure change. In the above railroad vehicle, the time from when the pressure difference between the inside and the outside of the vehicle is maximum to return to the normal pressure state is about 20 seconds.
【００１７】前記実施例ではオリフィス１，２によって
水封作用を破壊するようにしている。このため、オリフ
ィス１，２の径は前記約２０秒間において良好な排水が
行なわれるような径に定める。また、通常の圧力状態か
ら最大圧力に変化する場合に通常の水封装置として作用
するようにオリフィス１，２の径を定める。つまり、車
内の乗客に耳ツン等の障害外を発生しないように定め
る。In the above embodiment, the water sealing action is destroyed by the orifices 1 and 2. For this reason, the diameters of the orifices 1 and 2 are determined so that good drainage is performed in the above-mentioned approximately 20 seconds. Further, the diameters of the orifices 1 and 2 are determined so that the orifices 1 and 2 act as a normal water sealing device when the normal pressure state changes to the maximum pressure. In other words, the passengers in the car should not be out of the obstacle such as ear ears.
【００１８】図５は高耐圧を求めるために、Ｕ字管を３
連に配置した例を示しており貯水室内に水が充満してい
る状態を示している。貯水室６には気密室に通ずる流入
管２を設け、貯水室６と貯水室７はＵ字管を形成してい
る。貯水室６と貯水室７とは水路に対して充分に高い位
置にオリフィス１により結合されている。貯水室７と貯
水室８は堰１２によって区切られており水は堰１２を乗
り越えて貯水室８に入る。同様の構造のＵ字管とオリフ
ィス併用の貯水室が３個直列につながっている。最終的
に水は貯水室１１より排水管１４を通って外部に排出さ
れる。FIG. 5 shows a U-shaped tube with three
An example of arranging them in series is shown, and the water storage chamber is filled with water. The water storage chamber 6 is provided with an inflow pipe 2 communicating with the airtight chamber, and the water storage chamber 6 and the water storage chamber 7 form a U-shaped pipe. The water storage chamber 6 and the water storage chamber 7 are connected by an orifice 1 at a position sufficiently high with respect to the water channel. The water storage chamber 7 and the water storage chamber 8 are separated by a weir 12, and the water passes through the weir 12 and enters the water storage chamber 8. Three U-shaped tubes of similar structure and three water storage chambers with orifices are connected in series. Finally, the water is discharged from the water storage chamber 11 to the outside through the drain pipe 14.
【００１９】図６は気密室内に対し外部の圧力が低くな
り気密が破れる直前の状態を示している。すなわち貯水
室１の圧力をＰ１（内圧）、貯水室２、貯水室３の圧力
をＰ２、貯水室４、貯水室５の圧力をＰ３とする。外部
の圧力をＰ４とするとオリフィスの作用により、３個つ
ながったＵ字管の上部にある各空気部の圧力は、 Ｐ２＝（２×Ｐ１＋Ｐ４）／３----式４ Ｐ３＝（Ｐ１＋２×Ｐ４）／３----式４ の関係が成り立つ。つまり、図５に如く３連Ｕ字管の場
合差圧を考えると、 Ｐ１−Ｐ２＝ （Ｐ１−Ｐ４）／３----式５ Ｐ２−Ｐ３＝ （Ｐ１−Ｐ４）／３----式６ の関係が成り立つ。FIG. 6 shows a state immediately before the airtightness is broken due to a lower external pressure in the airtight chamber. That is, the pressure of the water storage chamber 1 is P1 (internal pressure), the pressure of the water storage chamber 2 and the water storage chamber 3 is P2, and the pressure of the water storage chamber 4 and the water storage chamber 5 is P3. Assuming that the external pressure is P4, due to the action of the orifice, the pressure of each air part above the three U-shaped pipes is: P2 = (2 × P1 + P4) / 3 ---- Equation 4 P3 = (P1 + 2 × The relationship of P4) / 3 ---- Equation 4 holds. That is, considering the differential pressure in the case of a triple U-shaped pipe as shown in FIG. 5, P1-P2 = (P1-P4) / 3 ---- Equation 5 P2-P3 = (P1-P4) / 3 --- -Equation 6 holds.
【００２０】この場合の水頭Ｈ＝ｈ１＋ｈ２＋ｈ３とな
る。例えばＵ字管１本当たりの水頭を５００ｍｍＡｑと
すると装置全体では５００×３＝１５００ｍｍＡｑとな
る。本図の様にＵ字管の本数を直列に増して行けば理論
上はいかなる高さの要求水頭にでも対応可能な水封装置
の提供が可能である。In this case, the water head H = h1 + h2 + h3. For example, assuming that the water head per U-shaped tube is 500 mmAq, the whole apparatus has 500 × 3 = 1500 mmAq. If the number of U-shaped tubes is increased in series as shown in the figure, it is theoretically possible to provide a water sealing device that can meet the required head of any height.
【００２１】[0021]
【発明の効果】本発明によれば、従来のサイフォン式水
封装置と同様に、可動部分がないため保守に手間がかか
らず、目つまりが少ないという利点をそのまま有し、し
かも短い寸法の装置でより大きい耐圧力変動量を有する
水封装置を得ることができる。According to the present invention, similar to the conventional siphon type water sealing device, since there are no moving parts, maintenance is easy and there is little clogging. It is possible to obtain a water sealing device having a larger amount of pressure resistance fluctuation in the device.
【図１】本発明の一実施例である２連Ｕ字管式水封装置
の満水時の断面図である。FIG. 1 is a cross-sectional view of a double U-tube water sealing device according to an embodiment of the present invention when it is full of water.
【図２】図１の水封装置の流入側の圧力が高く気密が破
れる直前の図である。FIG. 2 is a diagram immediately before the pressure on the inflow side of the water sealing device of FIG. 1 is high and the airtightness is broken.
【図３】図１の水封装置の流入側と流出側の圧力がつり
あった時の図である。FIG. 3 is a diagram when the pressures on the inflow side and the outflow side of the water sealing device of FIG. 1 are balanced.
【図４】図１の水封装置の流出側の圧力が高く気密が破
れる直前の図である。FIG. 4 is a diagram immediately before the pressure on the outlet side of the water sealing device of FIG. 1 is high and the airtightness is broken.
【図５】本発明の一実施例である３連Ｕ字管式水封装置
の満水時の断面図である。FIG. 5 is a cross-sectional view of a triple U-tube water sealing device according to an embodiment of the present invention when the water is full.
【図６】図５の水封装置の流入側の圧力が高く気密が破
れる直前の図である。6 is a diagram immediately before the pressure on the inflow side of the water sealing device of FIG. 5 is high and the airtightness is broken.
１，２，３…オリフィス、４…流入管、６，７，８，
９，１０，１１…貯水室、１２，１３…堰、１４…排出
管。1, 2, 3, ... Orifice, 4 ... Inflow pipe, 6, 7, 8,
9, 10, 11 ... Water storage chamber, 12, 13 ... Weir, 14 ... Discharge pipe.
Claims (1)
とも２つ備え、一方のＵ字管の一端は流入口に、他端は
他方のＵ字管の一端に接続しており、他方のＵ字管の他
端は排出口に接続しており、それぞれのＵ字管の上端側
同士を小さな穴で連通させていること、を特徴とする水
封装置。1. At least two U-shaped pipes each having an open upper end, one end of one U-shaped pipe being connected to an inlet, the other end being connected to one end of the other U-shaped pipe, and the other U-shaped pipe being connected. The water sealing device is characterized in that the other end of the U-shaped pipe is connected to a discharge port, and the upper ends of the U-shaped pipes are communicated with each other through a small hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24125995A JP3552809B2 (en) | 1995-09-20 | 1995-09-20 | Water sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24125995A JP3552809B2 (en) | 1995-09-20 | 1995-09-20 | Water sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0979383A true JPH0979383A (en) | 1997-03-25 |
| JP3552809B2 JP3552809B2 (en) | 2004-08-11 |
Family
ID=17071591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24125995A Expired - Fee Related JP3552809B2 (en) | 1995-09-20 | 1995-09-20 | Water sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3552809B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009257429A (en) * | 2008-04-15 | 2009-11-05 | Nippon Sharyo Seizo Kaisha Ltd | Water sealing device |
| CN106932189A (en) * | 2017-04-01 | 2017-07-07 | 山西泫氏实业集团有限公司 | A kind of method and system for measuring water seal arrangement dynamic trap seal loss |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748663B (en) * | 2019-10-22 | 2021-09-03 | 山东中车华腾环保科技有限公司 | Vacuum transfer type excrement collection anti-reverse-spraying control valve, excrement collection system and anti-reverse-spraying method |
-
1995
- 1995-09-20 JP JP24125995A patent/JP3552809B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009257429A (en) * | 2008-04-15 | 2009-11-05 | Nippon Sharyo Seizo Kaisha Ltd | Water sealing device |
| CN106932189A (en) * | 2017-04-01 | 2017-07-07 | 山西泫氏实业集团有限公司 | A kind of method and system for measuring water seal arrangement dynamic trap seal loss |
| CN106932189B (en) * | 2017-04-01 | 2023-04-18 | 山西泫氏实业集团有限公司 | Method and system for measuring dynamic water seal loss of water seal device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3552809B2 (en) | 2004-08-11 |
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