CN105369880B - A kind of vertical draining drop well - Google Patents
A kind of vertical draining drop well Download PDFInfo
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- CN105369880B CN105369880B CN201510663798.2A CN201510663798A CN105369880B CN 105369880 B CN105369880 B CN 105369880B CN 201510663798 A CN201510663798 A CN 201510663798A CN 105369880 B CN105369880 B CN 105369880B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
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- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The present invention relates to a kind of vertical draining drop well, it mainly includes drop well, it is characterised in that：Described drop well includes being arranged on well room and the puddle of bottom, the direct vertical connection of the puddle of well room and bottom on top on drop well top, and well room is provided with water inlet pipe and outlet pipe and ventilative well lid.The present invention complies with the development trend of saving land of drainage system, embody that function is efficient, technique clear, the technical characterstic of simple structure, well room and the direct waterpower insertion of puddle, make full use of water cushioning effect in itself in puddle, the Dissipation of Energy of drop well is solved, is easy in the build-up region application that land used is nervous, pipe network is intensive.
Description
Technical field
The technical field of drainage pipeline networks of the present invention involved by municipal works and environmental engineering, and in particular to municipal administration
A kind of vertical draining drop well of drainage pipeline networks.
Background technology
Municipal drainage pipeline mainly includes sewage conduct, storm sewer and rainwater, sewage interflow pipeline.Three kinds of pipelines are related to
And the arrangement of inspection shaft.According to《Code for design of outdoor sewerage engineering（GB 50014-2006 <Version in 2014>）》（Abbreviation outdoor drainage
Design specification, similarly hereinafter）, " position of inspection shaft should be located at pipeline intersection, turning, caliber or gradient change, at drop
And locate at a certain distance on straight line pipeline section.”
Drop well is a kind of important composition form of inspection shaft.At drop, as drop depth h >=5m, current will
Great impulsive force is produced, is formed for pipe network and inspection shaft and significantly washed away, and then high risks drainage pipeline networks is safe and stable
Operation.Therefore,《Code for design of outdoor sewerage engineering》Regulation：" when pipeline drop head is 1.0 ~ 2.0m, preferably set drop well；Drop water
When head is more than 2.0m, drop well should be set.Drop well should not be set at pipeline turning "；" the water inlet pipe caliber of drop well is not more than
During 200mm, the head height that once drops cannot be greater than 6m；When caliber is 300mm ~ 600mm, once dropping head height should not be big
In 4m.Drop mode can use vertical tube or rectangle vertical slot.When caliber is more than 600mm, its once drop head height and drop side
Formula should determine according to water force.But ",《Code for design of outdoor sewerage engineering》In not yet clear and definite caliber be more than 600mm when, once fall
The hydraulic calculation method of water head height and drop mode.
Moreover, with the continuous quickening of Urbanization in China, city is faced with huge and deep change.Give
Water, draining（Including rainwater, sewage, interflow etc.）, it is reclaimed water, electric power, cable, combustion gas, fuel oil, heating power, fire-fighting, illumination, communication, wide
The substantial amounts of underground utilities such as electricity are distributed on town road, cause the extreme of Subsurface crowded.Urban drainage pipe network leads to
Normal caliber is larger, and generally requires the conduit slope needed for ensureing gravity stream, while in order to avoid other pipelines, drainage pipeline networks
Buried depth often can be larger, inspection shaft（Containing drop well）Depth also accordingly increase.
At present,《Drainage inspection well》Atlas（02（03）S515）Included 3 kinds of drop wells, respectively riser type drop well,
Vertical slot formula drop well and staged drop well.Wherein riser type drop well is applied to and falls the caliber no more than cast iron pipe of 200mm,
It is the sewage pipe of 1 ~ 6m to fall difference；Vertical slot formula drop well is applied to and falls caliber for 200 ~ 600mm, and it is the rain sewage of 1 ~ 4m to fall difference
Pipe；Staged drop well is applied to and falls caliber for 700 ~ 1650mm, and it is the rainfall and sewage pipes of 1 ~ 2m to fall difference.Above-mentioned three classes drop
The well difference that most slumps is only 6m, and 6m corresponding cast iron sewage pipes for being only to be not more than 200mm when falling poor, it is difficult to meet drainage pipeline networks
The need for latest development.For the situation of larger water inlet pipe caliber, above-mentioned figure mainly by the way of falling step by step, floor space
It is larger, according to 700 ~ 1650mm of caliber, to fall and differ from 1 ~ 2m, inspection shaft inside dimension length needs 2.5 ~ 4m, and width needs 1.8 ~
2.75m。
In sum, the draining drop well with the effect that saves land that research is applied to the poor scope that relatively slumps is needed badly.
The content of the invention
It is an object of the invention to provide a kind of vertical draining drop well, what is be not directed in the traditional drop well of solution slumps
Poor Dissipation of Energy, is tight land used while providing the computational methods and application case of the vertical drop well with the effect that saves land
, in the intensive build-up region of pipe network the design of back drop reference is provided.
To achieve these goals, the technical scheme is that：A kind of vertical draining drop well, it mainly includes falling
Well, it is characterised in that：Described drop well includes being arranged on well room and the puddle of bottom on drop well top, the well room on top
With the direct vertical connection of the puddle of bottom, well room is provided with water inlet pipe and outlet pipe and ventilative well lid.
The puddle of bottom is completely filled with water during operation, and the water inlet of water inlet pipe is directly fallen in puddle, by with puddle in
Row buffering is entered in the collision of water, so as to reach the purpose of energy dissipating.
According to a preferred embodiment of the invention, the depth of puddle is
Wherein：H is the minimum-depth of bottom puddle（m）；
H is drop depth（m）；
dcIt is water inlet pipe critical depth of water（m）, when water inlet is for full-section pipe-flow, dcEqual to water inlet pipe caliber.
The scope of application of the invention is that Inlet and outlet water caliber is 0.6m ＜ d≤3m, and drop depth is the drop well of 1 ~ 15m.Fall
Well is preferably provided in round, and the diameter D of well room is no less than 2 times of water inlet pipe caliber, and minimum no less than 1.5m.Work as drop
When depth is more than 5m, the diameter of well room should also suitably amplify.When water inlet pipe caliber is larger, well room also contemplates for the side of being set to
Shape, its side long is no less than 2 times of water inlet pipe caliber, and short side is no less than water inlet pipe caliber, and both sides minimum is no less than
1.5m, and meet other functions demand.
Ventilative well lid should ensure that the smooth discharge of gas that drop is produced, and well lid perforated area is preferably in the range of 10 ~ 50%.
When draining drop well is with draining-off sewage as main, should also with due regard to deodorant problem during exhaust.As drop depth ＞ 10m, well
Interior should set cut-off, form exhaust chamber.It is straight that the distance of the cut-off horizontal plane distance between center line water inlet pipe side borehole wall is preferably well room
2/3 times of footpath D, 1/3 times of borehole wall diameter D is preferably apart from the distance of the outlet pipe side borehole wall, separates top edge and water inlet pipe pipe
Top is concordant, and lower edge is concordant with outlet pipe ttom of pipe, and the wall thickness of cut-off is by structure determination.The size positions of exhaust chamber should also be by water
The fluidised form that power model carries out draining drop well is verified.
Cardinal principle of the invention is：Due to the presence of pool, the water of certain depth is formed in drop bottom.Enter
The water inlet of water pipe is directly fallen in puddle, and row buffering is entered by the collision with water in puddle, so as to reach the purpose of energy dissipating.
The gas that collision is produced is dissipated in air by ventilative well lid (can be realized by controlling well lid perforated area).Water after energy dissipating
Stream is flowed out by drainpipe.The present invention complies with the development trend of saving land of drainage system, embody that function is efficient, technique clear,
The technical characterstic of simple structure, well room and the direct waterpower insertion of puddle, make full use of water cushioning effect in itself in puddle, solution
Determine the Dissipation of Energy of drop well, be easy in the build-up region application that land used is nervous, pipe network is intensive.
Brief description of the drawings
Fig. 1 is generalized section of the invention.
Generalized section when Fig. 2 is present invention setting exhaust chamber.
Fig. 3 is the generalized section of one embodiment of the invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
A kind of vertical draining drop well of the invention, it mainly includes drop well, it is characterised in that：Described drop well
Including two major parts, the well room 1 on drop well top and the puddle 2 of bottom, the well room 1 on top and the puddle 2 of bottom are direct
Vertical connection, well room 1 is provided with water inlet pipe 3 and outlet pipe 4 and ventilative well lid 5.In order to exclude because of the gas that drop is produced, drop
Well needs supporting ventilative top cover.The puddle of bottom is completely filled with water during operation, and the well room on top is partially filled with according to flow of inlet water
Water.The water inlet of water inlet pipe is directly fallen in puddle, and row buffering is entered by the collision with water in puddle, reaches the mesh of energy dissipating
's.
According to a preferred embodiment of the invention, the depth of puddle is
Wherein：H is the minimum-depth of bottom puddle（m）；
H is drop depth（m）；
dcIt is water inlet pipe critical depth of water（m）, when water inlet is for full-section pipe-flow, dc is equal to water inlet pipe caliber.
The scope of application of the invention is that Inlet and outlet water caliber is 0.6m ＜ d≤3m, and drop depth is the drop well of 1 ~ 15m.Fall
Well is preferably provided in round, and the diameter D of well room is no less than 2 times of water inlet pipe caliber, and minimum no less than 1.5m.Work as drop
When depth is more than 5m, the diameter of well room should also suitably amplify.When water inlet pipe caliber is larger, well room also contemplates for the side of being set to
Shape, its side long is no less than 2 times of water inlet pipe caliber, and short side is no less than water inlet pipe caliber, and both sides minimum is no less than
1.5m, and meet other functions demand.
Ventilative well lid should ensure that the smooth discharge of gas that drop is produced, and well lid perforated area is preferably in the range of 10 ~ 50%.
When draining drop well is with draining-off sewage as main, should also with due regard to deodorant problem during exhaust.As drop depth ＞ 10m, well
Interior should set cut-off 7, and exhaust chamber 6 is formed near outlet pipe side.The cut-off horizontal plane distance between center line water inlet pipe side borehole wall
Distance be preferably 2/3 times of well chamber diameter D, be preferably 1/3 times of borehole wall diameter D, cut-off apart from the distance of the outlet pipe side borehole wall
Top edge is concordant with water inlet pipe pipe top, and lower edge is concordant with outlet pipe ttom of pipe, and the wall thickness of cut-off is by structure determination.The chi of exhaust chamber
The fluidised form that very little position should also carry out draining drop well by hydraulic model is verified.
Water inlet pipe critical depth of water 1m in application examples, drop depth 10m, diameter of outflow tube 1m, is calculated according to above-mentioned formula, water
Pool minimum-depth is about 1.3m, and circular well chamber diameter is not less than 2m.Consider that drop depth is larger simultaneously, well chamber diameter is drunk appropriate
It is amplified to 3.5m.Its specific features is as follows：
1st, vertical drop well well room and the direct waterpower insertion of puddle, make full use of water buffering in itself in puddle to make
With, solve the Dissipation of Energy of drop well, the mode compared to staged energy dissipating can substantially save occupation of land, be easy to land used it is nervous,
The intensive build-up region application of pipe network.
2nd, vertical drop well complies with the development trend of saving land of drainage system, and simple structure, computational methods are clear；
3rd, drop well is equipped with has ventilative well lid, and well lid perforated area can be excluded effectively because drop is produced between 10 ~ 50%
Raw gas；
4th, puddle bottom and the inspection shaft borehole wall carry out appropriate bottom treatment as needed, increase the use longevity of drop well puddle
Life.
5th, for sewage drop well, it is considered as discharging the deodorant problem of gas, while should also clear up deep according to the fixed cycle
The drift of pool bottom.
The sewage treatment process that features described above of the invention is constituted has significant technical characterstic：
First, embodying, function is efficient, technique is clear, the technical characterstic of simple structure, supplements the difference that traditionally slumps of knowing clearly
The vacancy of drop well method for designing；
Second, simple, the effective formula construction that directly falls falls the effect that ensure that save land to greatest extent compared to staged, have
Using the effective application in the nervous completed region of the city of land used.
Third, be same as that flow is larger, the drop well that to fall depth larger, there is provided exhaust chamber, is easy to effective row of gas
Remove, the realization for contributing to air water to balance.
Claims (4)
1. a kind of vertical draining drop well, it mainly includes drop well, it is characterised in that：Described drop well includes being arranged on
The well room on drop well top and the puddle of bottom, the direct vertical connection of the puddle of well room and bottom on top, well room is provided with into water
Pipe and outlet pipe and the ventilative well lid positioned at well ceiling portion, the puddle of bottom is completely filled with water, the water inlet of water inlet pipe during operation
Directly fall in puddle, row buffering is entered by the collision with water in puddle, reach the purpose of energy dissipating, the depth of puddle is：；
Wherein：H is the minimum-depth of bottom puddle；
H is drop depth；
dcIt is water inlet pipe critical depth of water.
2. a kind of vertical draining drop well according to claim 1, it is characterised in that：Drop well is circular well room, well
The diameter D of room is no less than 2 times of water inlet pipe caliber, and minimum no less than 1.5m.
3. a kind of vertical draining drop well according to claim 1, it is characterised in that：Ventilative well lid perforated area preferably exists
In the range of 10 ~ 50%.
4. a kind of vertical draining drop well according to claim 1, it is characterised in that：As drop depth ＞ 10m, well
Indoor setting cut-off, forms exhaust chamber, and the distance of the cut-off horizontal plane distance between center line water inlet pipe side borehole wall is well chamber diameter D's
2/3 times, 1/3 times of borehole wall diameter D is preferably apart from the distance of the outlet pipe side borehole wall, separates top edge and water inlet pipe Guan Dingping
Together, lower edge is concordant with outlet pipe ttom of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510663798.2A CN105369880B (en) | 2015-10-15 | 2015-10-15 | A kind of vertical draining drop well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510663798.2A CN105369880B (en) | 2015-10-15 | 2015-10-15 | A kind of vertical draining drop well |
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| Publication Number | Publication Date |
|---|---|
| CN105369880A CN105369880A (en) | 2016-03-02 |
| CN105369880B true CN105369880B (en) | 2017-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510663798.2A Active CN105369880B (en) | 2015-10-15 | 2015-10-15 | A kind of vertical draining drop well |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108104242B (en) * | 2017-12-29 | 2019-01-11 | 河海大学 | Reduce the single flow drop structure of sucking gas flow |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2149958C1 (en) * | 1998-11-16 | 2000-05-27 | Курский государственный технический университет | Sewerage drop structure |
| CN101324084A (en) * | 2008-07-29 | 2008-12-17 | 四川大学 | Silo bottom rectifying energy dissipator |
| CN102767164A (en) * | 2012-08-16 | 2012-11-07 | 华北水利水电学院 | Bidirectional inflow whirling current type shaft facility for flood discharge and energy dissipation in dam |
| CN102787588A (en) * | 2012-08-16 | 2012-11-21 | 华北水利水电学院 | Shaft with vertical eddy-flow energy dissipaters of hole stoppers |
| CN203684178U (en) * | 2013-12-17 | 2014-07-02 | 浙江省电力设计院 | High water head and mass flow flood discharge and energy dissipation pool |
| CN204023521U (en) * | 2014-05-22 | 2014-12-17 | 中国电建集团成都勘测设计研究院有限公司 | For the drain cavern structure of rotational flow silo |
| CN104372844A (en) * | 2014-11-25 | 2015-02-25 | 洛阳城市建设勘察设计院有限公司 | Turn-back type stepped drop well |
-
2015
- 2015-10-15 CN CN201510663798.2A patent/CN105369880B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2149958C1 (en) * | 1998-11-16 | 2000-05-27 | Курский государственный технический университет | Sewerage drop structure |
| CN101324084A (en) * | 2008-07-29 | 2008-12-17 | 四川大学 | Silo bottom rectifying energy dissipator |
| CN102767164A (en) * | 2012-08-16 | 2012-11-07 | 华北水利水电学院 | Bidirectional inflow whirling current type shaft facility for flood discharge and energy dissipation in dam |
| CN102787588A (en) * | 2012-08-16 | 2012-11-21 | 华北水利水电学院 | Shaft with vertical eddy-flow energy dissipaters of hole stoppers |
| CN203684178U (en) * | 2013-12-17 | 2014-07-02 | 浙江省电力设计院 | High water head and mass flow flood discharge and energy dissipation pool |
| CN204023521U (en) * | 2014-05-22 | 2014-12-17 | 中国电建集团成都勘测设计研究院有限公司 | For the drain cavern structure of rotational flow silo |
| CN104372844A (en) * | 2014-11-25 | 2015-02-25 | 洛阳城市建设勘察设计院有限公司 | Turn-back type stepped drop well |
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| CN105369880A (en) | 2016-03-02 |
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