JP2000186690A - High pump head intake/discharge device of liquid and solid-liquid mixture - Google Patents
High pump head intake/discharge device of liquid and solid-liquid mixtureInfo
- Publication number
- JP2000186690A JP2000186690A JP36614598A JP36614598A JP2000186690A JP 2000186690 A JP2000186690 A JP 2000186690A JP 36614598 A JP36614598 A JP 36614598A JP 36614598 A JP36614598 A JP 36614598A JP 2000186690 A JP2000186690 A JP 2000186690A
- Authority
- JP
- Japan
- Prior art keywords
- recovery tank
- valve
- liquid
- solid
- 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.)
- Granted
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【0001】[0001]
【発明の技術分野】本発明は、例えばシールド工法にお
けるセグメントのインバートの泥水処理等に供せられ
る、液体および固液混合体の高揚程吸排装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-head suction / discharge device for a liquid / solid-liquid mixture, which is used for muddy water treatment of inverts of segments in a shield method, for example.
【0002】[0002]
【従来技術とその問題点】図2に示すよう、真空ポンプ
113の吸引作用により吸排タンク102内へ回収され
た液体または固液混合体を排水ポンプ116の吐出作用
によって排送させるという吸排装置は公知である。しか
し高揚程の吸排は困難であり、また、回収物中に固分が
多く含まれている場合には液分のみが排出され、固分が
吸排タンク102内に残存したり、揚水管108内で固
分による閉塞が生じることになる。2. Description of the Related Art As shown in FIG. 2, a suction / discharge device for discharging a liquid or a solid-liquid mixture collected into a suction / discharge tank 102 by a suction operation of a vacuum pump 113 by a discharge operation of a drain pump 116 is provided. It is known. However, it is difficult to suck and discharge at a high head, and when a large amount of solids is contained in the collected material, only the liquid is discharged, and the solids remain in the suction / discharge tank 102 or the pumping pipe 108 In this case, blockage due to solid components occurs.
【0003】それを解決する対策として、吸込管路10
4中に固分回収タンク101を脱着可能に介装させてお
き、真空ポンプ113の吸引作用により吸引された固液
混合体を一旦固分回収タンク101内へ収容させ、重力
により分離した液分のみを吸排タンク102内へ移送し
て排水ポンプ116の吐出作用で揚水管108を通じて
排送させ、固分が満杯となった固分回収タンク101は
吸込管路104中から取り外して坑外へ引き揚げ、固分
を排出したのち再び坑内へ固分回収タンク101を降下
させて吸込管路104に接続させるという手段が講じら
れている。しかしこのような繁雑な作業に多大の労力を
必要とするばかりでなく、その間吸排作業を中断しなけ
ればならないという欠点がある。[0003] As a countermeasure to solve this, a suction pipe 10
4, the solid component recovery tank 101 is detachably interposed, and the solid-liquid mixture sucked by the suction action of the vacuum pump 113 is temporarily stored in the solid component recovery tank 101, and the liquid component separated by gravity is removed. Only the solids are transferred into the suction / discharge tank 102 and discharged through the water pump 108 by the discharge action of the drain pump 116. The solids recovery tank 101, which is full of solids, is removed from the suction pipe 104 and pulled out of the pit. After the solids are discharged, means for lowering the solids recovery tank 101 again into the pit and connecting it to the suction pipe 104 is taken. However, such a complicated work requires not only a great deal of labor but also a drawback that the suction and discharge work must be interrupted during that time.
【0004】[0004]
【発明の目的】本発明の目的は、上記従来の欠点を払拭
して回収物中に固分が多く含まれている場合でも揚送管
路を通じての排出が強力かつ円滑に行われ、吸排タンク
内に固分が残存することな、かつ揚送管路内に閉塞を生
じさせることなく作業性に優れ、高濃度スラリーの高揚
程吸排にも使用し得る装置を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the drawbacks of the prior art, and to discharge strongly and smoothly through a discharge pipe even when a large amount of solids is contained in a collected material. It is an object of the present invention to provide an apparatus which does not leave solids therein, has excellent workability without causing clogging in a pumping line, and can be used for high head suction and discharge of high concentration slurry.
【0005】[0005]
【発明の構成】本発明に係る液体および固液混合体の高
揚程吸排装置においては、上方に位置する一次回収タン
クの下底部が下方に位置する二次回収タンクと切換弁を
介して導通せられ、一次回収タンクから導出された吸込
管の先端部が液体または固液混合体の供給源へ開口さ
れ、一次回収タンクの上方部は吸気管路により真空発生
装置の吸込口へ連通され、二次回収タンクの上方部には
圧力センサが付設されると共に下方部からは圧送用開閉
弁を介して揚送管路が導延せられ、コンプレッサから導
出された送気管が分岐されてその一路は加圧排出用開閉
弁を介して二次回収タンク内へ開口され、送気管の他の
一路は加圧圧送用開閉弁を介して圧送用開閉弁の二次側
より揚送管路内へ開口せられ、二次回収タンクの上方部
と一次回収タンクの上方部とが連通用開閉弁を介して通
気管により導通されている。In the high-head suction and discharge device for a liquid and solid-liquid mixture according to the present invention, the lower bottom portion of the upper primary recovery tank is in communication with the lower secondary recovery tank via a switching valve. The leading end of the suction pipe led out from the primary recovery tank is opened to the supply source of the liquid or solid-liquid mixture, and the upper part of the primary recovery tank is connected to the suction port of the vacuum generator by the suction pipe, and A pressure sensor is attached to the upper part of the next recovery tank, and a lifting pipe is extended from the lower part via a pressure-feeding on-off valve, and an air pipe led out of the compressor is branched. Opened into the secondary recovery tank via a pressurized discharge on-off valve, and another path of the air supply pipe is opened from the secondary side of the pressure feed on-off valve through the pressurized pressure on-off valve into the lifting line. The upper part of the secondary collection tank and the primary collection tank. And square portion is conducted by the vent pipe via the connecting-class-off valve.
【0006】[0006]
【実施例】以下本発明実施例の図1により説明をする。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
【0007】1は一次回収タンク、2は二次回収タンク
であって、上方に位置する一次回収タンク1の下底部が
下方に位置する二次回収タンク2と切換弁3を介して導
通されている。4は一次回収タンク1から導出された吸
込管であり、その導出先端部は泥水や浚渫物などの供給
源へ開口される。5は一次回収タンク1の上方部から導
出されて真空発生装置6の吸込口と連通する吸気管路、
7は二次回収タンク2の上方部に付設された圧力セン
サ、8は二次回収タンク2内の下方部から導出せられ圧
送用開閉弁9を介して導延される揚送管、10は二次回
収タンク2の上方部と一次回収タンク1の上方部とを導
通させる通気管であり、連通用開閉弁11が介装されて
いる。12はコンプレッサ13から導出された送気管
で、二路に分岐されてその一路12Aは加圧排出用開閉
弁14を介して二次回収タンク2内へ開口され、他の一
路12Bは加圧圧送用開閉弁15を介して圧送用開閉弁
9の二次側より揚送管路8内へ開口されている。Reference numeral 1 denotes a primary recovery tank, and reference numeral 2 denotes a secondary recovery tank. The lower bottom of the primary recovery tank 1 located above is electrically connected to the secondary recovery tank 2 located below via the switching valve 3. I have. Reference numeral 4 denotes a suction pipe led out of the primary recovery tank 1 and its leading end is opened to a supply source such as muddy water or dredged material. 5 is an intake pipe drawn out from the upper part of the primary recovery tank 1 and communicating with the suction port of the vacuum generator 6;
7 is a pressure sensor attached to the upper part of the secondary recovery tank 2, 8 is a lifting pipe led out from a lower part in the secondary recovery tank 2 and extended through an on-off valve 9 for pressure feeding, 10 is This is a ventilation pipe that connects the upper part of the secondary recovery tank 2 and the upper part of the primary recovery tank 1, and is provided with a communication on-off valve 11. Reference numeral 12 denotes an air supply pipe derived from the compressor 13, which is branched into two paths, one path 12A of which is opened into the secondary recovery tank 2 via a pressurizing / discharging on-off valve 14, and another path 12B which is pressurized and fed. The opening / closing valve 15 is opened from the secondary side of the on-off valve 9 for pressure feed into the lifting line 8.
【0008】[0008]
【作用】真空発生装置6が駆動し、切換弁3と連通開閉
弁11が開状態で、加圧排出用開閉弁14が閉状態にあ
るとき、一次回収タンク1内および二次回収タンク2内
は減圧される。従って吸込管4の導出先端部を泥水や浚
渫物などの供給源へ開口させれば、吸引された回収物は
一次回収タンク1内から切換弁3を通過して二次回収タ
ンク2内へ流入し二次回収タンク2内に貯留された固分
はタイマーにより適時排出されるが、切換弁3および連
通用開閉弁11が閉成することで一次回収タンク1と二
次回収タンク2とは遮蔽され、一次回収タンク1内の減
圧状態は維持されているので供給源からの回収作用は継
続される。そして加圧圧送用開閉弁15が閉じ圧送用開
閉弁9および加圧排出用開閉弁14が開となることで、
二次回収タンク2内の貯留物は圧縮空気により一気に排
出されるが、二次回収タンク2内の圧力が予め定めた所
定値まで低下すれば、圧力センサ7の検知作用で二次回
収タンク2内の貯留物の排出が終了したものと判断す
る。それまでの間上記供給源からの回収物は一時的に一
次回収タンク1内に貯留され、上記二次回収タンク2内の
貯留物排出終了すなわち加圧排出用開閉弁14の閉作動
をまって加圧圧送用開閉弁15を開とし、揚送管8に残
存するスラリー閉塞を抑制しながら連通用開閉弁11が
開となることにより二次回収タンク2内を一次回収タン
ク1内と同様の減圧状態となしたのち、切換弁3が開と
なり一次回収タンク1内の貯留物が二次回収タンク2内へ
流下する。When the vacuum generator 6 is driven, the switching valve 3 and the communication on-off valve 11 are open, and the pressurizing / discharging on-off valve 14 is closed, the inside of the primary recovery tank 1 and the inside of the secondary recovery tank 2 Is decompressed. Therefore, if the leading end of the suction pipe 4 is opened to a supply source such as muddy water or dredged material, the sucked collected matter flows from the primary collection tank 1 through the switching valve 3 into the secondary collection tank 2. The solids stored in the secondary recovery tank 2 are discharged at appropriate times by a timer, but the switching valve 3 and the communication on-off valve 11 are closed to shield the primary recovery tank 1 and the secondary recovery tank 2. Since the reduced pressure state in the primary recovery tank 1 is maintained, the recovery operation from the supply source is continued. Then, the on-off valve 15 for pressurized pressure feed is closed, and the on-off valve 9 for pressure feed and the on-off valve 14 for pressurized discharge are opened.
The stored material in the secondary recovery tank 2 is discharged at a stretch by compressed air. However, when the pressure in the secondary recovery tank 2 decreases to a predetermined value, the secondary recovery tank 2 is detected by the pressure sensor 7. It is determined that the discharge of the stored material has been completed. Until then, the collected material from the above-mentioned supply source is temporarily stored in the primary recovery tank 1, and the discharge of the stored material in the secondary recovery tank 2 is completed, that is, the closing operation of the pressurized discharge on-off valve 14 is stopped. The opening / closing valve 15 for pressurized pressure feed is opened, and the opening / closing valve 11 for communication is opened while suppressing the blockage of the slurry remaining in the pumping pipe 8, so that the inside of the secondary recovery tank 2 is the same as that in the primary recovery tank 1. After the pressure is reduced, the switching valve 3 is opened, and the stored material in the primary recovery tank 1 flows down into the secondary recovery tank 2.
【0009】上述の作動を1サイクルとしてこれを反復
継続させることにより、液体または固液混合体の連続的
な回収と間欠的な排出作用が円滑かつ強力に行われるこ
とになる。なお、加圧圧送用開閉弁15は常時開状態と
しておいてもよい。By repeatedly performing the above-described operation as one cycle, continuous recovery and intermittent discharge of the liquid or solid-liquid mixture can be smoothly and strongly performed. In addition, the on-off valve 15 for pressurized pressure feed may be always in an open state.
【0010】[0010]
【発明の効果】本発明吸排装置によれば、真空発生装置
の吸引作用によって回収された液体や固液混合体の排送
作用が、コンプレッサから二次回収タンク内に加えられ
る加圧排出作用と揚送管路内に加えられる加圧圧送作用
と両々相まって極めて強力に行われる。従って回収物中
に固分が多く含まれいる場合でも、回収タンク内に残存
することなく確実に排出せられ、高濃度スラリーの高揚
程吸排用としても使用が可能である。また、構造簡潔で
小型に構成し得るため狭隘な作用現場、例えばシールド
工法における立坑および斜坑内に搬入して使用するのに
適している。According to the suction and discharge device of the present invention, the discharge operation of the liquid or the solid-liquid mixture recovered by the suction operation of the vacuum generator is performed by the pressurization and discharge operation applied from the compressor into the secondary recovery tank. It is extremely powerful in combination with the pressurizing and pumping action applied in the lifting line. Therefore, even when a large amount of solids is contained in the collected matter, the solid matter is reliably discharged without remaining in the collection tank, and can be used for suction and discharge of a high-concentration slurry at a high head. In addition, since it is simple in structure and can be configured in a small size, it is suitable to be used by being carried into a narrow working site, for example, a shaft and a shaft in a shield method.
【図1】本発明吸排装置における管路系統を示した説明
図である。FIG. 1 is an explanatory diagram showing a pipeline system in a suction / discharge device of the present invention.
【図2】従来の吸排装置における管路系統を例示した説
明図である。FIG. 2 is an explanatory view exemplifying a pipeline system in a conventional suction / discharge device.
1 一次回収タンク 2 二次回収タンク 3 切換弁 4 吸込管 5 吸気管路 6 真空発生装置 7 圧力センサ 8 揚送管 9 圧送用開閉弁 10 通気管 11 連通用開閉弁 12 送気管 12A 送気管の分岐された一路 12B 送気管の分岐された他の一路 13 コンプレッサ 14 加圧排出用開閉弁 15 加圧圧送用開閉弁 DESCRIPTION OF SYMBOLS 1 Primary collection tank 2 Secondary collection tank 3 Switching valve 4 Suction pipe 5 Intake pipeline 6 Vacuum generator 7 Pressure sensor 8 Lifting pipe 9 Pressure opening / closing valve 10 Vent pipe 11 Communication opening / closing valve 12 Air supply pipe 12A Air supply pipe Branched one path 12B Other branched path of the air supply pipe 13 Compressor 14 Pressurized discharge opening / closing valve 15 Pressurized pressure feeding opening / closing valve
フロントページの続き (72)発明者 高比良 博志 大阪府大阪市鶴見区鶴見4丁目16番40号 株式会社鶴見製作所内 (72)発明者 金谷 秀明 大阪府大阪市鶴見区鶴見4丁目16番40号 株式会社鶴見製作所内 Fターム(参考) 2D054 AC01 DA12 DA35 GA33 GA37 GA58 GA63 GA81 GA95 Continued on the front page (72) Inventor Hiroshi Takahira 4-16-40, Tsurumi-ku, Tsurumi-ku, Osaka-shi, Osaka Inside Tsurumi Seisakusho (72) Inventor Hideaki Kanaya 4--16-40, Tsurumi-ku, Tsurumi-ku, Osaka-shi, Osaka Stock Company Tsurumi Works F term (reference) 2D054 AC01 DA12 DA35 GA33 GA37 GA58 GA63 GA81 GA95
Claims (1)
が下方に位置する二次回収タンクと切換弁を介して導通
せられ、一次回収タンクから導出された吸込管の先端部
が液体または固液混合体の供給源へ開口され、一次回収
タンクの上方部は吸気管路により真空発生装置の吸込口
へ連通され、二次回収タンクの上方部には圧力センサが
付設されると共に下方部からは圧送用開閉弁を介して揚
送管路が導延せられ、コンプレッサから導出された送気
管が分岐されてその一路は加圧排出用開閉弁を介して二
次回収タンク内へ開口され、送気管の他の一路は加圧圧
送用開閉弁を介して圧送用開閉弁の二次側より揚送管路
内へ開口せられ、二次回収タンクの上方部と一次回収タ
ンクの上方部とが連通用開閉弁を介して通気管により導
通されていることを特徴とする、液体および固液混合体
の高揚程吸排装置。1. A lower bottom portion of a primary recovery tank located above is communicated with a secondary recovery tank located below via a switching valve, and a tip of a suction pipe led out of the primary recovery tank is liquid or solid. It is opened to the supply source of the liquid mixture, the upper part of the primary recovery tank is connected to the suction port of the vacuum generator by an intake pipe, and a pressure sensor is attached to the upper part of the secondary recovery tank and it is connected from the lower part. , The pumping line is extended via the on-off valve for pressure feed, the air supply pipe derived from the compressor is branched, and one of the lines is opened into the secondary recovery tank via the on-off valve for pressurized discharge, The other path of the air supply pipe is opened from the secondary side of the pressure-feeding on-off valve to the pumping line via the pressure-pressure on-off valve, and is opened into the upper part of the secondary recovery tank and the upper part of the primary recovery tank. Is connected to the vent pipe via the open / close valve for communication. Characterized by a high head suction and discharge device for liquid and solid-liquid mixtures.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP36614598A JP4601090B2 (en) | 1998-12-24 | 1998-12-24 | High-lift suction and discharge device for liquid and solid-liquid mixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP36614598A JP4601090B2 (en) | 1998-12-24 | 1998-12-24 | High-lift suction and discharge device for liquid and solid-liquid mixture |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000186690A true JP2000186690A (en) | 2000-07-04 |
JP4601090B2 JP4601090B2 (en) | 2010-12-22 |
Family
ID=18486035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP36614598A Expired - Lifetime JP4601090B2 (en) | 1998-12-24 | 1998-12-24 | High-lift suction and discharge device for liquid and solid-liquid mixture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4601090B2 (en) |
-
1998
- 1998-12-24 JP JP36614598A patent/JP4601090B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP4601090B2 (en) | 2010-12-22 |
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