CN103590484B - Automatic hydraulic control leaping weir initial rainwater catch basin and flow closure method - Google Patents

Automatic hydraulic control leaping weir initial rainwater catch basin and flow closure method Download PDF

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Publication number
CN103590484B
CN103590484B CN201310584247.8A CN201310584247A CN103590484B CN 103590484 B CN103590484 B CN 103590484B CN 201310584247 A CN201310584247 A CN 201310584247A CN 103590484 B CN103590484 B CN 103590484B
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China
Prior art keywords
weir
flow
influent stream
stream pipe
weir plate
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Expired - Fee Related
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CN201310584247.8A
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Chinese (zh)
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CN103590484A (en
Inventor
付国楷
陈水平
张梦玲
吴越
陆颂
徐官安
雷莉
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Chongqing University
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Chongqing University
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Abstract

The invention discloses an automatic hydraulic control leaping weir initial rainwater catch basin and a flow closure method. The automatic hydraulic control leaping weir initial rainwater catch basin and the flow closure method are suitable for the improvement of a bypass flow rainwater pipeline. The catch basin comprises a catch basin body, a flow inlet pipe, a water closure pipe, an automatic hydraulic control weir body, four limiting blocks, a floating cylinder, sector flow side baffles, flow discharging small holes, a separation wall, an overflowing pipe, a manhole, steps, a weir plate shaft and the like. The flow closure method is conducted by the catch basin and when it rains, flow of the water inlet pipe is enlarged along with the enlargement of rainfall. When the flow of the water inlet pipe is enlarged to a certain degree, a flow-jetting outer curve crosses the automatic control weir. According to the automatic control weir, a weir plate is opened under the buoyancy of the floating cylinder and the water flow in the flow inlet pipe is completely abandoned until the amount of the water flow of the flow inlet pipe is nearly zero. Due to the flow discharging action of the flow discharging small holes, the floating cylinder descends, the weir plate is reset, and clean rainwater can enter a water receiving body at the later period. The catch basin is completely controlled through hydraulic power, other control devices are not needed, operation is stable, maintenance is simple, and management is convenient.

Description

What a kind of hydraulic automatism controlled jumps over weir primary rainwater closure well and closure method
Technical field
The present invention relates to rain-water drainage treatment technology, especially relate to a kind of can retain early-stage rainwater and completely abandoned stream later stage rainwater retain technology.
Background technology
Due to the development of human civilization, the attention degree of people to environment increases gradually, also there is deep change in urban sewerage and drainage system, combined sewer systems is towards interceptive combined system system and separate flow system development, and separate flow system rainwater discharges water body completely nearby.But the production of the mankind, life make a large amount of pollutants be discharged in the middle of environment, receiving water body is entered by rain drop erosion, cause the severe contamination of environment, if rainwater is all collected and enters Sewage Plant process, huge impact will be caused to the stable operation of Sewage Plant, also can cause the serious waste of Sewage Plant scale drought period.Early-stage rainwater drip washing air, and wash away the pollutant of underlying surface, make in early-stage rainwater runoff containing a large amount of pollutants such as organic matter, pathogen, grease, suspended solid, therefore the degree of contamination of early-stage rainwater is higher, the most serious part is polluted often in rainfall runoff, and later stage rainwater is relatively cleaner, enters water body and can not cause serious pollution.Entering Sewage Plant carry out processing discharging again if therefore retained by early-stage rainwater runoff, is a kind of method preferably.Traditional weir formula or groove weir formula catchpit are due to the effect on weir, the smooth discharge of current in rain pipe can be hindered, slot type, groove weir formula, weir formula and jump over weir formula catchpit and all there is later stage clean rainwater and can not realize the problems such as abandoned stream (front 3 kinds of problems of also depositing combined closure system instability, during big yield, actual combined closure system can increase considerably).In addition, the shortcomings such as traditional Electronic control weir plate lifting realizes damming, and to have operation with flow abandoning apparatus stable not, complicated structure, difficult in maintenance.
Such as China patent No. 200910191015.X once disclosed a kind of early-stage rainwater stream abandoning device, it is primarily of room, shunting overflow weir, formation such as shunting diversion chamber, time delay automatic-discharging mechanism etc. after charge for remittance room, abandoned stream partition, abandoned stream water service pipe, water flow control mechanism, abandoned stream cup, abandoned stream.Although this device can realize early-stage rainwater stream abandoning, but apparatus structure is complicated, cost intensive, simultaneously clean in rainwater discharge because the existence of delays time to control room can cause early stage part early-stage rainwater to remain in the inside and then be mingled in the later stage, the arranging of gutter can cause having the clean rainwater in-line arrangement water pipe of part all the time and enter into the outer discharge pipe of early-stage rainwater, therefore it is poor to there is separating effect, be separated halfway defect.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention is: how to provide a kind of structure simple, is convenient to implement, and what the with low cost and hydraulic automatism of good separating effect controlled jumps over weir primary rainwater closure well and closure method.
In order to solve the problems of the technologies described above, in the present invention, have employed following technical scheme:
What a kind of hydraulic automatism controlled jumps over weir primary rainwater closure well, comprise well body, be positioned at influent stream pipe and the outflow tube of well body sidewall, its feature is, described well body bottom is also provided with automatic control weir influent stream pipe and outflow tube separated, automatic control weir is along being vertically installed in influent stream pipe front lower place, the borehole wall of bottom, automatic control weir is provided with intercepting sewer with influent stream pipe homonymy, just breach is provided with to influent stream pipe position in the middle of top, described automatic control weir, breach is provided with the weir plate with breach coupling away from influent stream pipe side, weir plate lower end is rotatably connected to breach soffit by rotating shaft, side weir plate deviating from influent stream pipe is also fixedly connected with a floating drum by the connecting rod of a bending downwards, floating drum is positioned at one by the ponding space automatically controlling weir and compartment wall and surround, described compartment wall is lower than automatic control height of weir degree and bottom has the discharge orifice that level is communicated to the well intracoelomic cavity space in outflow tube direction, described outflow tube is positioned at well intracoelomic cavity space bottom position.
The catchpit of this programme can be used in primary rainwater closure makes it flow out from intercepting sewer, and the later stage, clean rainwater was all flowed out by outflow tube, and the automatic control achieving rainwater is separated.Its structure is only made up of simple structures such as overflow weir, weir plate, compartment wall and floating drums simultaneously, has structure simple, is convenient to implement, feature with low cost.
As optimization, upper notch two side, described automatic control weir is also respectively provided with one near position, influent stream pipe direction and protruding connects stream limited block, connect stream limited block and remain for support limit weir plate the water receiving state that upper end tilts to influent stream pipe direction; Upper notch two side, described automatic control weir is also respectively provided with a protruding reset limited block near position, outflow tube direction, and reset limited block is used for the spacing closure state remained straight up when weir plate resets.
After such optimization, for the unlatching of weir plate and reset provide fulcrum, be conducive to the accurate opening and closing of weir plate, and avoid water impact to the destruction of weir plate.
As optimization, weir plate both sides are respectively fixedly connected with along the direction away from influent stream pipe the fan-shaped baffle side plate that a top is arc-shaped side.Waterpower can be prevented so to be again back in cut-off groove from weir plate.
As optimization, the cylindrical shell of floating drum is placed in the side of weir plate, avoids the impact failure of current.
What the invention also discloses the control of a kind of hydraulic automatism jumps over weir primary rainwater closure method, its feature is, what the hydraulic automatism that have employed said structure controlled jumps over weir primary rainwater closure well, and after making the early-stage rainwater needing to dam enter well intracoelomic cavity from influent stream pipe, directly drop into influent stream pipe because the water yield is less and automatically to control in the well body cavity between weir and flow to Wastewater Treatment Plant through intercepting sewer to process, along with the flow of influent stream pipe increases, jet external curve is crossed control weir plate top automatically and is entered in the ponding space automatically between control weir and compartment wall, in ponding space, water level goes up and drives floating drum to float, and then drive weir plate upper end to rotate to be open mode toward influent stream pipe direction, weir plate is abutted against stream limited block and keeps that angle of inclination is stable makes later stage rainwater cross weir plate after opening, the rainwater making the later stage clean is all arranged outward by outflow tube.When rain stop or be reduced to be not suitable for directly outer row drizzle after, when the influent stream pipe water yield is reduced to lower than discharge orifice flow, the ponding in ponding space is discharged by the discharge orifice below compartment wall, makes floating drum increase to drive weir plate to have resetted a work period.
In the present invention, the flow of the water inlet pipe of described catchpit increases along with the increase of rainfall, and when increasing to a certain degree, jet external curve is crossed and automatically controlled weir, automatic control weir is due to float buoyancy effect, weir plate is opened, and the current of influent stream pipe are completely by abandoned stream, until the influent stream pipe water yield is almost nil, due to the earial drainage effect of discharge orifice, floating drum declines, and weir plate resets, and achieves later stage cleaner rainwater and enters receiving water body.Described catchpit adopts waterpower to control completely, without the need to other control appliances, stable, safeguards simple, convenient management.
In the present invention, after influent stream pipe current cross weir plate, the region ponding of weir plate and compartment wall centre, weir plate is towards the direction Unscrew of influent stream pipe under the backwater effect of float buoyancy, and current are completely by abandoned stream.When weir plate is in the state opened completely, the jet inner curve of influent stream pipe also can surmount weir crest, does not dam completely so can realize the later stage.Invention fully achieves waterpower to control, device is simple, convenient management.What the weir plate that the present invention is arranged realized is rotarily open, and rotates flexibly.In the present invention, in catchpit well body, be provided with compartment wall, in the middle of body of wall, near bottom, earial drainage aperture be set, for the effect of floating drum creates condition.Be provided with 4 limited blocks on weir plate both sides in the present invention, for the unlatching of weir plate and reset provide fulcrum, be conducive to the accurate opening and closing of weir plate, and avoid water impact to the destruction of weir plate.In the present invention, weir plate is symmetrical about influent stream pipe vertical section, and both sides width is preferably more than internal diameter of the pipeline 5-10 centimetre, and both sides install baffle side plate additional, avoids current and gets back in cut-off groove from weir plate.
In the present invention, the rotation of weir plate achieves two effects, a distance being the reduction of weir and influent stream pipe, and two height being reduction of crest of weir, two kinds of effects, are all conducive to current and jump over weir plate, realize abandoned stream.
The catchpit structure that the present invention adopts is simple, and functional realiey process is simple, overcomes the problem that conventional vertical ascending/decending weir plate easily breaks down
In the present invention, earial drainage aperture is preferably arranged on the position near bottom in the middle of compartment wall, and its bore is by calculating using compartment wall height as acting head and later stage minimum controlling flux, and simultaneously due to the impact of current, aperture is difficult to blocked.
In sum, the present invention can enter Sewage Plant by polluting in rainfall runoff more serious primary rainwater closure, and later stage cleaner rainwater realizes complete abandoned stream, effectively reduces building size and the environmental protection of Sewage Plant, and runs Non-energy-consumption, safeguards simple.Meanwhile, there is catchpit structure simple, be convenient to implement, the with low cost and advantage of good separating effect.
Accompanying drawing explanation
Fig. 1 is the floor map of catchpit of the present invention.
Fig. 2 is B-B cross-sectional view in Fig. 1.
Fig. 3 is C-C cross-sectional view in Fig. 1.
Fig. 4 is A-A cross-sectional view in Fig. 1.
Fig. 5 is the little water yield situation of A-A cross-sectional view in Fig. 1.
Fig. 6 is water yield situation in the early stage of A-A cross-sectional view in Fig. 1.
Fig. 7 is the flow namely needing compared with big yield to control the early stage of A-A cross-sectional view in Fig. 1, the situation before floating drum effect.
Fig. 8 is the comparatively big yield of A-A cross-sectional view in Fig. 1, the situation after floating drum effect.
Fig. 9 is the later stage comparatively low discharge situation of A-A cross-sectional view in Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, structure of the present invention is described in further detail.
During concrete enforcement, as shown in Fig. 1-Fig. 9, what a kind of hydraulic automatism controlled jumps over weir primary rainwater closure well, comprise well body, be positioned at the influent stream pipe 1 of well body sidewall and outflow tube 9(and bleed off pipe), described well body bottom is also provided with automatic control weir influent stream pipe 1 and outflow tube 9 separated, automatic control weir is along being vertically installed in influent stream pipe 1 front lower place, the borehole wall of bottom, automatic control weir is provided with intercepting sewer 2 with influent stream pipe homonymy, just breach is provided with to influent stream pipe position in the middle of top, described automatic control weir, breach is provided with the weir plate 3 with breach coupling away from influent stream pipe side, weir plate 3 lower end is rotatably connected to breach soffit by rotating shaft 13, side weir plate 3 deviating from influent stream pipe 1 is also fixedly connected with a floating drum 5 by the connecting rod of a bending downwards, floating drum 5 is positioned at one by the ponding space automatically controlling weir and compartment wall 8 and surround, described compartment wall 8 is lower than automatic control height of weir degree and bottom has the discharge orifice 7 that level is communicated to the well intracoelomic cavity space in outflow tube 9 direction, described outflow tube 9 is positioned at well intracoelomic cavity space bottom position.Upper notch two side, described automatic control weir is also respectively provided with one near position, influent stream pipe direction and protruding connects stream limited block 4, connect stream limited block 4 and remain for support limit weir plate 3 the water receiving state that upper end tilts to influent stream pipe direction; Upper notch two side, described automatic control weir is also respectively provided with a protruding reset limited block 12 near position, outflow tube direction, the spacing closure state remained straight up when reset limited block 12 resets for weir plate 3.Weir plate both sides are respectively fixedly connected with along the direction away from influent stream pipe the fan-shaped baffle side plate 6 that a top is arc-shaped side.Number in the figure 10 is manhole, and label 11 is step, goes into the well to facilitate on personnel.
What a kind of hydraulic automatism controlled jumps over weir primary rainwater closure method, what have employed above-mentioned hydraulic automatism control jumps over weir primary rainwater closure well, and after making the early-stage rainwater needing to dam enter well intracoelomic cavity from influent stream pipe, directly drop into influent stream pipe because the water yield is less and automatically to control in the well body cavity between weir and flow to Wastewater Treatment Plant through intercepting sewer to process, along with the flow of influent stream pipe increases, jet external curve is crossed control weir plate top automatically and is entered in the ponding space automatically between control weir and compartment wall, in ponding space, water level goes up and drives floating drum to float, and then drive weir plate upper end to rotate to be open mode toward influent stream pipe direction, weir plate is abutted against stream limited block and keeps that angle of inclination is stable makes later stage rainwater cross weir plate after opening, the rainwater making the later stage clean is all arranged outward by outflow tube.
Specifically, after catchment occurs, underlying surface rainwater catchment enters in the storm sewer system of segregation system, by Cemented filling to catchpit place, according to the change of the water yield, when the water yield is larger, weir plate realizes automatically opening abandoned stream, rainfall terminates rear and after the disappearance of bore stream, weir plate resets, and enters the holding state of next catchment.
As Fig. 5 and Fig. 6, the flow of influent stream pipe is less than the flow that needs dam, and jet external curve is within weir plate dams scope, and weir plate can be in vertical state, and the water yield enters intercepting sewer completely, is delivered in downstream factory or storage pond.
As shown in Figure 7, the flow of influent stream pipe is larger, jet curved portion has crossed weir plate top, fall the region of weir plate and compartment wall centre, because discharge orifice vent flow is less than the flow entered, the region ponding of weir plate and compartment wall centre, water level rises, promote floating drum and act on weir plate, weir plate opens (as Fig. 8), and the flow of influent stream pipe is entirely across weir plate abandoned stream.Because the weir plate after opening can make jet inner curve cross weir plate, so as long as there is flow (as Fig. 9) in the later stage, floating drum will produce effect, and weir plate will be in opening, exercising result is the later stage cleaner whole overflow of rainwater.
After the runoff stopping of a rainfall generation, the water of weir plate and compartment wall mid portion can slowly release by discharge orifice, and floating drum declines, and weir plate gets back to state shown in Fig. 4 along with floating drum resets, and a work period is complete, enters the holding state of next cycle.

Claims (4)

1. what a hydraulic automatism controlled jumps over weir primary rainwater closure well, comprise well body, be positioned at influent stream pipe and the outflow tube of well body sidewall, it is characterized in that, described well body bottom is also provided with automatic control weir influent stream pipe and outflow tube separated, automatic control weir is along being vertically installed in influent stream pipe front lower place, the borehole wall of bottom, automatic control weir is provided with intercepting sewer with influent stream pipe homonymy, just breach is provided with to influent stream pipe position in the middle of top, described automatic control weir, breach is provided with the weir plate with breach coupling away from influent stream pipe side, weir plate lower end is rotatably connected to breach soffit by rotating shaft, side weir plate deviating from influent stream pipe is also fixedly connected with a floating drum by the connecting rod of a bending downwards, floating drum is positioned at one by the ponding space automatically controlling weir and compartment wall and surround, described compartment wall is lower than automatic control height of weir degree and bottom has the discharge orifice that level is communicated to the well intracoelomic cavity space in outflow tube direction, described outflow tube is positioned at well intracoelomic cavity space bottom position, weir plate is symmetrical about influent stream pipe vertical section, and both sides width is for exceeding internal diameter of the pipeline 5-10 centimetre.
2. what hydraulic automatism as claimed in claim 1 controlled jumps over weir primary rainwater closure well, it is characterized in that, upper notch two side, described automatic control weir is also respectively provided with one near position, influent stream pipe direction and protruding connects stream limited block, connect stream limited block and remain for support limit weir plate the water receiving state that upper end tilts to influent stream pipe direction; Upper notch two side, described automatic control weir is also respectively provided with a protruding reset limited block near position, outflow tube direction, and reset limited block is used for the spacing closure state remained straight up when weir plate resets.
3. what hydraulic automatism as claimed in claim 1 or 2 controlled jumps over weir primary rainwater closure well, it is characterized in that, weir plate both sides are respectively fixedly connected with along the direction away from influent stream pipe the fan-shaped baffle side plate that a top is arc-shaped side.
4. what a hydraulic automatism controlled jumps over weir primary rainwater closure method, it is characterized in that, what have employed hydraulic automatism as claimed in claim 3 control jumps over weir primary rainwater closure well, and after making the early-stage rainwater needing to dam enter well intracoelomic cavity from influent stream pipe, directly drop into influent stream pipe because the water yield is less and automatically to control in the well body cavity between weir and flow to Wastewater Treatment Plant through intercepting sewer to process, along with the flow of influent stream pipe increases, jet external curve is crossed control weir plate top automatically and is entered in the ponding space automatically between control weir and compartment wall, in ponding space, water level goes up and drives floating drum to float, and then drive weir plate upper end to rotate to be open mode toward influent stream pipe direction, weir plate is abutted against stream limited block and keeps that angle of inclination is stable makes later stage rainwater cross weir plate after opening, the rainwater making the later stage clean is all arranged outward by outflow tube.
CN201310584247.8A 2013-11-20 2013-11-20 Automatic hydraulic control leaping weir initial rainwater catch basin and flow closure method Expired - Fee Related CN103590484B (en)

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CN104047359B (en) * 2014-07-09 2015-11-04 合肥市市政设计院有限公司 Jump weir formula cuts dirty inlet for stom water
CN104782447B (en) * 2015-04-17 2017-05-24 浙江大学 Agricultural land initial stage runoff collection irrigation system and method thereof
CN105155665B (en) * 2015-10-11 2017-06-23 济源职业技术学院 A kind of municipal drainage system
CN105863031A (en) * 2016-04-06 2016-08-17 重庆大学 Efficient rainwater hydraulic drop discarding water collecting device
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