CN101892705B - Intercepting deep well self-siphoning hydraulic desilting device - Google Patents
Intercepting deep well self-siphoning hydraulic desilting device Download PDFInfo
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- CN101892705B CN101892705B CN2010102355912A CN201010235591A CN101892705B CN 101892705 B CN101892705 B CN 101892705B CN 2010102355912 A CN2010102355912 A CN 2010102355912A CN 201010235591 A CN201010235591 A CN 201010235591A CN 101892705 B CN101892705 B CN 101892705B
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- siphon
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Abstract
The invention discloses an intercepting deep well self-siphoning hydraulic desilting device, which comprises a siphoning water inlet pipe, a siphoning bent pipe and a siphoning drainage pipe, wherein a suction opening is arranged at the position of the water inlet of the siphoning water inlet pipe; a siphoning destruction hole is formed in the siphoning inlet pipe; and the siphoning bent pipe is provided with a siphoning auxiliary pipe and a siphoning suction pipe. The device of the invention can change the flow state in the intercepting deep well and an upstream bearing pipe by changing the original continuous small flow into intermittent instantaneous heavy flow, so that the suspended materials in sewage are unlikely to settle down, and sludge settled onto the bottom of the pipes and the well can be washed and carried into an intercepting main pipe. The device does not need power, is simple in structure and convenient to install, and has a better desilting and siltation preventing effect.
Description
Technical field
The present invention relates to catchpit hydraulic desilting device field, especially relate to a kind of intercepting sewer absolute altitude greater than the combined system system intercepting deep well self-siphoning hydraulic desilting device under the soil pipe situation.
Background technology
The shutoff type combined drainage system is delivered to Wastewater Treatment Plant's processing with dry flow sewage and initial rainfall runoff through the main that dams; The rainfall runoff that surpasses interception ratio then enters water body through the overflow weir overflow; Therefore; The shutoff type combined drainage system is that a kind of investment economizes, and environmental benefit is drainage system preferably.Yet because combined drainage system needs to collect simultaneously to carry dry flow sewage and rainfall runoff, caliber is bigger; Under the drought stream operating mode; Dry flow sewage is difficult to reach the requirement of design minimum flow velocity, and suspended materials a large amount of in the sewage very easily are deposited in pipeline and the inspection shaft, causes the pipeline alluvial to be stopped up.And when rainfall, a large amount of rainfall runoff imports combined drainage system, washes away and sweeps along the deposit overflow to enter receiving water body, and huge instantaneous pollution impact load very easily causes water quality to deceive smelly deterioration.Therefore, the deposit problem is one of drawback of combined drainage system.Especially be higher than the intercepting deep well when becoming a mandarin soil pipe when the intercepting sewer absolute altitude; Dry flow sewage gets into intercepting sewer through the upward flow overflow; Make a large amount of alluvial of suspended organic matter in the dry flow sewage in the intercepting deep well shaft bottom, make that into the organic suspension thing content of Sewage Plant is extremely low.
The sweep-out method of traditional combined drainage system deposit mainly adopts mechanical desilting method, high-pressure water jet desilting method, water to wash away the desilting method; Though these methods adopt special-purpose desilting equipment; Improved desilting efficiency data; But equipment cost is high, and operating cost is big, can't fundamentally solve pipeline alluvial problem.In addition, the main dredging method that method also is some urban discharging pipelines is drawn in manual work clearly, and artificial dredging method efficient is low, and work under bad environment also can't effectively ensure the normal operation of combined drainage system.Deficiency to machinery and artificial dredging method; Some novel hydropower automatic desilting devices been have also have been researched and developed abroad accordingly; Wash away system etc. like
and
vacuum; But these auto hydraulic desiltings can't be applicable to flowing full pressure-bearing pipeline section or need power-equipment; Therefore, also can't popularize in an all-round way.
Summary of the invention
In order to overcome the alluvial problem of present combined system intercepting deep well and upper reaches pressure-bearing pipeline section; The invention provides a kind of self-siphoning hydraulic desilting device of combined system intercepting deep well; The dominant mechanism of this device is that the low discharge that originally continues is changed over instantaneous big flow intermittently, changes the fluidised form of intercepting deep well and upper reaches pressure-bearing pipeline section, makes the suspension in the sewage be difficult to sedimentation; Also make the mud that is deposited in the pipe end, shaft bottom can be washed and coerced into the main that dams, deliver to Wastewater Treatment Plant and handle.
A kind of combined system system intercepting deep well self-siphoning hydraulic desilting device comprises siphon inlet pipe, siphon bend and siphon drainage pipe.The water inlet of siphon inlet pipe bottom is equipped with pump orifice, and pump orifice and horizontal direction are 45～60 ° of angles, and pump orifice is mainly used in and improves suction flow field, bottom, promotes the removing of shaft bottom mud.
The siphon inlet pipe is provided with the siphon destructive hole, and the absolute altitude in siphon destructive hole can confirm that when water level was reduced to absolute altitude place, siphon destructive hole, siphon destructive avoided producing lasting siphon according to primary rainbow water absorption and siphon generation frequency optimization.
The two ends of siphon bend connect siphon inlet pipe and siphon drainage pipe respectively; The installed inside of siphon bend has auxiliary siphon tube, and the position of the connected entrance between auxiliary siphon tube and the siphon bend on siphon bend is near this side of siphon inlet pipe, and this connected entrance is a funnel type; Can improve the drowning efficient of auxiliary siphon tube; Help the effect of bleeding of siphon exhaust tube, promote the moment of siphon to produce, it highly is lower than the top of siphon bend inner arc; Also anti-blocking guard can be installed on the connected entrance, prevent that floating thing from stopping up auxiliary siphon tube.The outside of siphon bend is communicated with an end of siphon exhaust tube, and the other end of siphon exhaust tube is connected to the auxiliary siphon tube upper end near the siphon bend place.Siphon exhaust tube and auxiliary siphon tube all are used to assist the generation of siphon; Avoid when low discharge, producing weir flow in the pipe; Utilize the effect of bleeding of the draining generation of auxiliary siphon tube,, assist to produce fast siphon through the air on siphon exhaust tube suction siphon bend top.
During practical engineering application; The siphon inlet pipe is installed in the catch basin that connects upper reaches soil pipe indoor; It is indoor that siphon drainage pipe, auxiliary siphon tube and siphon exhaust tube are installed in the catchpit limit that is connected the main that dams, and siphon inlet pipe and siphon drainage pipe are communicated with through siphon bend.The sewage that continues low discharge along with upper reaches sewage conduct flows into, and the chamber water level raises gradually in the catchpit, and the water level in the siphon inlet pipe also rises gradually; When water level rose to auxiliary siphon tube upper end nozzle position, water continued to wander from auxiliary siphon tube, aspirated the air on siphon bend top simultaneously through the siphon exhaust tube; After causing certain vacuum, siphon produces, and the instantaneous big flow suction of the water in shaft bottom is got into chamber, intercepting deep well limit; Chamber drawdown in the intercepting deep well, after water level is reduced to the siphon destructive hole, siphon destructive; Siphonic process stops, and rises to next siphonic process gradually until water level and produces.
The water-head and the self-siphoning hydraulic desilting device section area of chamber and chamber, catchpit limit are relevant in the anti-silt effect of the desilting of self-siphoning hydraulic desilting device and the catchpit; During design and installation; Can calculate the section area of rational self-siphoning hydraulic desilting device according to both water-heads, to reach best dredging effect.
Under the rainfall operating mode; Because the inflow upper reaches soil pipe of a large amount of rainfall runofves in the upper reaches far surpasses the siphon flow, indoor water level rises rapidly in the intercepting deep well; Enter overflow well after surpassing overflow weir; Directly be discharged into receiving water body through row river pipe, therefore, the installation of self-siphoning hydraulic desilting device does not produce any influence to draining safety in rainy season.
Compare with existing hydraulic desilting device, the present invention has the following advantages and good effect:
1, this apparatus structure is simple, and cost is lower, need not power, and maintenance is convenient;
2, this device can be removed the alluvial of intercepting deep well bottom and upper reaches pressure-bearing pipeline section, simultaneously, through the intermittent flow of current, prevents the alluvial of suspension in intercepting deep well and pressure-bearing pipeline section in the sewage.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is the auxiliary siphon tube of apparatus of the present invention and the local enlarged diagram of the connected entrance between the siphon bend.
Fig. 3 is the scheme of installations of apparatus of the present invention in intercepting deep well.
Description of reference numerals is following:
1 siphon inlet pipe, 2 siphon destructive holes, 3 siphon exhaust tubes
4 auxiliary siphon tubes 5 chamber, main 6 catchpit limit of damming
8 overflow wells, 9 overflow weirs in chamber in 7 catchpits
11 upper reaches soil pipes, 12 siphon bends are managed in 10 row rivers
13 pump orifices, 14 siphon drainage pipes, 15 anti-blocking guards
The specific embodiment
As shown in Figure 1; Combined system of the present invention system intercepting deep well self-siphoning hydraulic desilting device; Comprise siphon inlet pipe 1, siphon destructive hole 2, siphon exhaust tube 3, auxiliary siphon tube 4, pump orifice 13, siphon drainage pipe 14 and siphon bend 12; Auxiliary siphon tube 4 is 15～25cm with the caliber of siphon exhaust tube 3, less than the caliber of siphon inlet pipe 1 and siphon drainage pipe 14.Pump orifice 13 is installed on the water inlet of siphon inlet pipe 1 bottom, with level to being 45 °, the setting of pump orifice 13 is mainly used in and improves suction flow field, bottom, promotes the removing of shaft bottom mud.Auxiliary siphon tube 4 is installed in siphon bend 12 inboards, near siphon inlet pipe 1 one sides.Connected entrance between auxiliary siphon tube 4 and the siphon bend 12 adopts funnel type; Can improve the drowning efficient of auxiliary siphon tube 4, help the effect of bleeding of siphon exhaust tube 3, promote the moment of siphon to produce; Anti-blocking guard 15 is installed on it, prevents that floating thing from stopping up auxiliary siphon tube 4.One end of siphon exhaust tube 3 is communicated with siphon bend 12 outsides; The other end is communicated with near siphon bend 12 places with auxiliary siphon tube 4 upper ends; Siphon exhaust tube 3 and auxiliary siphon tube 4 all are used to assist the generation of siphon, avoid when low discharge, producing weir flow in the pipe, the effect of bleeding of the draining generation through auxiliary siphon tube 4; Utilize the air on siphon exhaust tube 3 suction siphon bends 12 tops, assist to produce fast siphon.Siphon destructive hole 2 is installed on the siphon inlet pipe 1, and when water level was reduced to 2 absolute altitude places, siphon destructive hole, siphon destructive avoided producing lasting siphon, and the absolute altitude in siphon destructive hole 2 can be confirmed according to primary rainbow water absorption and siphon generation frequency optimization.
As shown in Figure 3; Siphon inlet pipe 1 is installed in the catchpit that connects upper reaches soil pipe 11 in the chamber 7; Siphon drainage pipe 14, auxiliary siphon tube 4 and siphon exhaust tube 3 are installed in the chamber, catchpit limit 6 that is connected the main 5 that dams, and the setting height(from bottom) of pump orifice 13 is at the bottom 10～20cm of chamber 7 in catchpit, and the port of export of siphon drainage pipe 14 need be submerged in the water; The mouth of pipe is 5～10cm below the water surface, and siphon inlet pipe 1 is communicated with through siphon bend 12 with siphon drainage pipe 14.Under the non-irrigated stream operating mode, dry flow sewage continues to flow into chamber 7 in the catchpit with low discharge, and in the catchpit rise with siphon inlet pipe 1 interior water level gradually in chamber 7; When water level rose to auxiliary siphon tube 4 tops, auxiliary siphon tube 4 began to fall into water, through siphon exhaust tube 3; Lasting the falling into water of auxiliary siphon tube 4 can be taken the gases in the siphon bend 12 away; Because siphon drainage pipe 14 ports of export are submerged in the water, cause the siphon bend 12 inner certain vacuum degree that form, impelled the formation of siphonage in the siphon bend 12.After siphonage produced, siphon inlet pipe 1 produced swabbing action through 13 pairs of shaft bottoms of pump orifice, has promoted the removing of bottom sludge, simultaneously, had also strengthened the flow velocity in the upper reaches soil pipe 11, prevented in the upper reaches soil pipe 11 sedimentation of suspension with harden.After siphon effect produced, the water levels in the catchpit in the chamber 7 descended rapidly, when water level is reduced to siphon destructive hole 2 absolute altitudes when following; Siphonage is destroyed; Siphon finishes, and along with 7 water levels of chamber in the intercepting deep well rise once more, siphon forms again; Go round and begin again, the desilting of 7 shaft bottoms, chamber and upper reaches soil pipe 11 is become silted up with anti-in the assurance intercepting deep well.The water-head and the self-siphoning hydraulic desilting device section area of chamber 7 and chamber, catchpit limit 6 are relevant in the anti-silt effect of the desilting of self-siphoning hydraulic desilting device and the catchpit; During design and installation; Can calculate the section area of rational self-siphoning hydraulic desilting device according to both water-heads, to reach best dredging effect.
Under the rainfall operating mode; Because a large amount of rainfall runofves in the upper reaches flow into upper reaches soil pipe 11, far surpass the siphon flow, chamber 7 interior water levels rise rapidly in the intercepting deep well; Enter overflow well 8 after surpassing overflow weir 9; Directly be discharged into receiving water body through row river pipe 10, therefore, the installation of self-siphoning hydraulic desilting device does not produce any influence to draining safety in rainy season.
Claims (5)
1. an intercepting deep well self-siphoning hydraulic desilting device comprises siphon inlet pipe (1), siphon bend (12) and siphon drainage pipe (14), it is characterized in that: the two ends of siphon bend (12) connect siphon inlet pipe (1) and siphon drainage pipe (14) respectively; The water inlet of described siphon inlet pipe (1) bottom is equipped with pump orifice (13), and siphon inlet pipe (1) is provided with siphon destructive hole (2); The installed inside of described siphon bend (12) has auxiliary siphon tube (4); Connected entrance between auxiliary siphon tube (4) and the siphon bend (12) is near siphon inlet pipe (1) one side; The outside of siphon bend (12) is equipped with siphon exhaust tube (3); Described siphon exhaust tube (3) one ends connect siphon bend (12) outside, and the other end is connected to auxiliary siphon tube (4) upper end and locates near siphon bend (12).
2. intercepting deep well self-siphoning hydraulic desilting device according to claim 1 is characterized in that: described pump orifice (13) and level are to being 45～60 ° of angles.
3. intercepting deep well self-siphoning hydraulic desilting device according to claim 1 is characterized in that: described connected entrance is a funnel type.
4. according to claim 1 or 3 described intercepting deep well self-siphoning hydraulic desilting devices, it is characterized in that: anti-blocking guard (15) is installed on the described connected entrance.
5. intercepting deep well self-siphoning hydraulic desilting device according to claim 1 is characterized in that: described connected entrance is lower than the top of siphon bend (12) inner arc.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102355912A CN101892705B (en) | 2010-07-23 | 2010-07-23 | Intercepting deep well self-siphoning hydraulic desilting device |
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| CN2010102355912A CN101892705B (en) | 2010-07-23 | 2010-07-23 | Intercepting deep well self-siphoning hydraulic desilting device |
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| CN101892705A CN101892705A (en) | 2010-11-24 |
| CN101892705B true CN101892705B (en) | 2012-09-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102720266A (en) * | 2012-06-18 | 2012-10-10 | 上海市城市建设设计研究总院 | Siphon type dredging device for water storage and drainage tunnel |
| CN106638932A (en) * | 2016-11-28 | 2017-05-10 | 中冶天工集团有限公司 | Utility tunnel rainwater cabin vacuum flushing device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102840A (en) * | 1987-04-18 | 1988-11-02 | 让-克劳德·格莱 | Be used for device to the drainage of soil of underground depths |
| DE8902878U1 (en) * | 1988-03-25 | 1989-05-03 | Nill, Werner, Winterthur, Ch | |
| DE9016513U1 (en) * | 1990-01-24 | 1991-02-21 | Nill, Werner, Winterthur, Ch | |
| CN101191349A (en) * | 2006-11-23 | 2008-06-04 | 王亨利 | Pollution discharging device for pond |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100348526B1 (en) * | 2000-04-04 | 2002-08-14 | 고수부 | a siphon |
| CN201850643U (en) * | 2010-07-23 | 2011-06-01 | 浙江大学 | Closure deep well self-siphon hydraulic dredging device |
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2010
- 2010-07-23 CN CN2010102355912A patent/CN101892705B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102840A (en) * | 1987-04-18 | 1988-11-02 | 让-克劳德·格莱 | Be used for device to the drainage of soil of underground depths |
| DE8902878U1 (en) * | 1988-03-25 | 1989-05-03 | Nill, Werner, Winterthur, Ch | |
| DE9016513U1 (en) * | 1990-01-24 | 1991-02-21 | Nill, Werner, Winterthur, Ch | |
| CN101191349A (en) * | 2006-11-23 | 2008-06-04 | 王亨利 | Pollution discharging device for pond |
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| CN101892705A (en) | 2010-11-24 |
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