CN102383489A - Hydraulic automatic control type method for distributing initial rainwater - Google Patents
Hydraulic automatic control type method for distributing initial rainwater Download PDFInfo
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- CN102383489A CN102383489A CN2011102404735A CN201110240473A CN102383489A CN 102383489 A CN102383489 A CN 102383489A CN 2011102404735 A CN2011102404735 A CN 2011102404735A CN 201110240473 A CN201110240473 A CN 201110240473A CN 102383489 A CN102383489 A CN 102383489A
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Abstract
The invention discloses a hydraulic automatic control type method for distributing initial rainwater, which comprises the following specific steps of: arranging an initial rainwater distribution well (4) communicated with a rainwater inspection well (7) beside the rainwater inspection well (7); arranging a hydraulic automatic control type gate automatic opening-closing mechanism consisting of a distribution pipe gate (11), a connecting rod (12) and a buoy (13) which are sequentially connected by a hinge inside the initial rainwater distribution well (4); driving the distribution pipe gate (11) to be opened or closed by the buoy (13) according to the variation condition of water level in the initial rainwater distribution well to form hydraulic automatic control type distribution of the initial rainwater; and automatically draining the initial rainwater required to be subjected to distribution treatment in a rainwater pipeline (8) in a sewage pipeline so as to reduce the pollution of the initial rainwater on a water body. The hydraulic automatic control type method has the beneficial effects that the flow of the initial rainwater is controlled and the distribution pipe gate is opened and closed, so that the initial rainwater is automatically distributed and enters the sewage pipeline system; and the hydraulic automatic control type method has the advantages of energy saving, simple structure, convenience in management, wide application range and the like.
Description
Technical field
The present invention relates to municipal water supply and sewerage pipeline systems technology field, particularly relate to a kind of early-stage rainwater shunt method that utilizes waterpower self-controlling device the early-stage rainwater branch to be flowed into sewer system.
Background technology
Early-stage rainwater carries a large amount of pollutants, then is prone to cause severe contamination as directly entering water body, therefore sewer system is held back and entered to early-stage rainwater, and discharging again after Wastewater Treatment Plant handles is the effective way that reduces water pollution.Though the early-stage rainwater period is not long; But run-off is bigger; The maximum diameter flow can reach tens times more than of the fine sewage quantity of equal drainage area, if early-stage rainwater all is diverted to sewage network, not only increase substantially sewer system investment; And can bring extraordinary water yield load impact to Wastewater Treatment Plant, influence its treatment effect.Therefore can not be with processing of all damming of all early-stage rainwaters, and should inquire into the early-stage rainwater amount that needs to shunt processing according to pollution of area source reduction rate index, and early-stage rainwater is entered sewer system through part flow arrangement.
The early rainwater automatic flow abandoning control device of having developed at present, automatic control inflation (or water-filling) rubber dam generally are used for the shunting of roofing and river course early-stage rainwater, can not be used for the sewerage system in sub-district or urban district, and the extent of spreading amd application is little; And exist equipment to control automatically and require the shortcoming high, that management expectancy is tight.
The development trend of early-stage rainwater shunting both at home and abroad is: develop energy-conservation, simple structure, convenient management, widely applicable small-sized early-stage rainwater shunting device, be used for the sewerage system in sub-district or urban district.But do not see as yet at present through the waterpower self-control mode and realize the early-stage rainwater report of shunting automatically.
Summary of the invention
Technical problem to be solved by this invention is: in order to overcome the deficiency that little, the automatic control requirement of the existing early-stage rainwater part flow arrangement scope of application is high, management expectancy is tight; A kind of waterpower self-control type early-stage rainwater shunt method is provided; This method can not only be shunted the early-stage rainwater in sub-district or the urban district storm sewer system automatically and enter sewage conduct; And can regulate the shunting amount of rainfall according to pollution of area source reduction rate index and the early-stage rainwater amount that needs shunting to handle, alleviate the pollution of early-stage rainwater to water body.
The present invention solves its technical problem and adopts following technical scheme:
Waterpower self-control type early-stage rainwater shunt method provided by the invention; Specifically: at the other early-stage rainwater shunting well that is communicated with it that is provided with of rainwater inspection well; The inside of the well of rainwater shunting in the early stage is provided with the waterpower self-control type gate automatic open and close mechanism that isocon gate, connecting rod, a floating drum that is linked to each other successively by hinge constitutes; Floating drum drives the keying of isocon gate according to the up-down situation of water level in the early-stage rainwater shunting well; Promptly form waterpower self-control type early-stage rainwater shunting, the early-stage rainwater that automatically storm sewer need be shunted processing enters sewage conduct through isocon, to alleviate the pollution of early-stage rainwater to water body.
On the linked hole that is communicated with the place of rainwater inspection well and early-stage rainwater shunting well, the hyperbolic screen cloth is set,, avoids scum silica frost to get in the early-stage rainwater shunting well with the scum silica frost in the interception rainwater.
Described early-stage rainwater shunting well, its top is the pools zone, and the bottom is a mud accumulation area, and isocon stretches into early-stage rainwater and shunts the top that the part of well is located at mud accumulation area.
The part that said isocon stretches into early-stage rainwater shunting well becomes the angle less than 90 degree with ground, the pipe top mark of isocon is high identical with the bottom absolute altitude of rainwater inspection well.
Described connecting rod can be adopted by two joint straight-bars and be threaded.
It is 0.04～0.06 meter spilled water hole that described isocon gate center is provided with diameter, and screen filtration impurity is installed.
On the borehole wall of rainwater inspection well and early-stage rainwater shunting well, cat ladder is set respectively.
The gate pole that the borehole wall of two ends and early-stage rainwater shunting well links to each other is set, in case gate falls into the mud accumulation area that early-stage rainwater is shunted well during drawdown in the shunting well in isocon gate bottom; Two floating drum poles that link to each other with the borehole wall of early-stage rainwater shunting well are set, obstruction isocon when preventing in the floating drum rain shunting in the early stage well drawdown above isocon.
Waterpower self-control type early-stage rainwater shunt method provided by the invention, it is used for the early-stage rainwater shunting of the sewerage system of urban district or sub-district.During application, according to the early-stage rainwater flow that need shuntings is handled, the length of regulating connecting rod, the up-down through floating drum comes automatic open and close isocon gate, and the early-stage rainwater shunting of storm sewer system is entered sewage conduct, alleviates the pollution of early-stage rainwater to water body.
When the present invention used, its step comprised:
1. according to local pollution of area source reduction rate index, inquire into the early-stage rainwater amount that needs shunting to handle, the maximum height that floating drum should rise when closing the isocon gate by the hydraulic calculation formula calculating of isocon free discharge, and then the length of regulating connecting rod; The hydraulic calculation formula of this isocon free discharge is:
In the formula:
μ c Discharge coefficient for piping; π is a pi;
DBe the caliber of isocon, unit rice;
gBe acceleration of gravity, 9.8 meters of values
2/ second; The maximum height at the H end that is floating drum in the isocon pipe, unit rice;
2. during rainfall, rainfall runoff gets into early-stage rainwater shunting well through storm sewer, rainwater inspection well, hyperbolic screen cloth;
3. at the rainfall initial stage, owing to come the water yield less, water level is lower in the early-stage rainwater shunting well, and this moment, the isocon gate was in opening; Rainwater can flow into sewer system through isocon smooth the branch in the well;
4. along with coming the water yield to increase, cause that water level raises in the early-stage rainwater shunting well, floating drum rises, and drives the isocon gate and closes gradually, and then rainwater no longer gets into sewage conduct through early-stage rainwater shunting well, but directly flows away through storm sewer;
5. after rainfall reduced and finishes, the water level in rainwater inspection well and the early-stage rainwater shunting well progressively descended, and the water in the early-stage rainwater shunting well enters sewer system through spilled water hole; Promote the drawdown in the early-stage rainwater shunting well; Floating drum also descends thereupon, rests during lowest order on the floating drum pole, and the isocon gate is opened under action of gravity automatically; Rest during lowest order on the gate pole, the early-stage rainwater shunting during for rainfall is next time prepared.
The present invention compared with prior art has following major advantage:
Conventional cities and towns sewerage system comprises storm sewer system and sewer system; This method is not destroyed original two cover sewerage systems; Only need to set up corresponding early-stage rainwater and shunt well on the rainwater inspection well side of storm sewer system; In the well of rainwater shunting in the early stage the waterpower self-control type gate headstock gear that is made up of isocon, gate, connecting rod and floating drum etc. is set; By the early-stage rainwater flow-control and open and close the isocon gate, early-stage rainwater in the storm sewer system is divided automatically flow into sewer system, thereby reduce the pollution of early-stage rainwater water body.This method can be used for the cities and towns sewerage system in sub-district or vast urban district; Compare conventional sewerage system; Only increased early-stage rainwater shunting well construction, operation does not at ordinary times need power cost, has energy-conservation, simple structure, convenient management, widely applicable advantage.
Description of drawings
Fig. 1 is the structural representation of the waterpower self-control type early-stage rainwater part flow arrangement that the present invention adopted.
Fig. 2 is the sectional view of the A-A of Fig. 1.
Among the figure: 1. isocon; 2. gate pole; 3. floating drum pole; 4. early-stage rainwater is shunted well; 5. cat ladder; 6. hyperbolic screen cloth; 7. rainwater inspection well; 8. storm sewer; 9. mud accumulation area; 10. spilled water hole; 11. isocon gate; 12. connecting rod; 13. floating drum.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described further, but is not limited to following said content.
Waterpower self-control type early-stage rainwater shunt method provided by the invention; Utilize waterpower self-control type early-stage rainwater part flow arrangement to realize; The structure of this device is as depicted in figs. 1 and 2: at the rainwater inspection well 7 other early-stage rainwater shunting wells 4 that are provided with; On the linked hole of their intersections bottom, hyperbolic screen cloth 6 is set,, avoids scum silica frost to get in the early-stage rainwater shunting well with the scum silica frost in the interception rainwater.The top of early-stage rainwater shunting well 4 is the pools zone; The bottom is a mud accumulation area 9; Be provided with isocon 1 on mud accumulation area 9 tops, the part that isocon 1 stretches into early-stage rainwater shunting well 4 becomes the angle less than 90 degree with ground, and the pipe top mark of isocon 1 is high identical with the bottom absolute altitude of rainwater inspection well 7.Be provided with the waterpower self-control type gate automatic open and close mechanism that isocon gate 11, connecting rod 12, a floating drum 13 that is linked to each other successively by hinge constitutes on mud accumulation area 9 tops; Wherein the center of isocon gate 11 is provided with the spilled water hole 10 of band filter screen, and isocon gate 11 bottoms link to each other with the isocon bottom hinge.
The diameter of said spilled water hole 10 is 0.04～0.06 meter.At spilled water hole 10 places filter screen being installed mainly is for impurity screening.After stopping rain, the water in the early-stage rainwater shunting well 4 is discharged through spilled water hole 10, and water level and floating drum 13 descend in the promotion well, open isocon gate 11, for shunting next time is prepared.
The height of said mud accumulation area 9 is 0.4～0.6 meter.Mud accumulation area is set, and its effect is the influence to avoid deposition that isocon gate 11 is opened and closed.
Said isocon gate 11 is supported by gate pole 2, in case fall into mud accumulation area 9 in the isocon gate 11 rainwater shunting in the early stage well 4 during drawdown.The two ends of this gate pole link to each other with early-stage rainwater shunting well 4 boreholes wall.
Said floating drum 13 is supported by two floating drum poles 3, stops up isocon 1 when preventing in the floating drum rainwater shunting in the early stage well 4 drawdown; These two floating drum poles are positioned at the top that isocon 1 stretches into the part of early-stage rainwater shunting well.Floating drum 13 promptly forms the shunting of waterpower self-control type early-stage rainwater according to the keying of fluctuation in stage drive isocon gate 11 in the shunting well, will shunt the early-stage rainwater of handling automatically and enter sewage conduct through isocon 11, alleviates the pollution of early-stage rainwater to water body.
Said connecting rod 12 is adopted by two joint straight-bars and is threaded, and adjustable link length is so that the maximum height that floating drum 13 should rise when confirming to close isocon gate 11 according to the minimum early-stage rainwater amount of required shunting.
The part that said isocon 1 stretches into early-stage rainwater shunting well becomes the angle less than 90 degree with ground, be convenient to the keying of isocon gate 11.Can rely on gravity to flow into sewer system for ease of early-stage rainwater, when the municipal drainage pipe network is set, should make the invert elevation (IE) of sewage conduct be lower than the invert elevation (IE) of parallel with it storm sewer from storm sewer system branch; The pipe top mark of isocon 1 is high identical with the bottom absolute altitude of rainwater inspection well 7 simultaneously.
Said isocon 1, parameters such as its diameter and the gradient are calculated by pipe flowing full hydraulic calculation formula (for example steel concrete pipe flowing full hydraulic calculation formula) according to the minimum early-stage rainwater amount of intending shunting.This pipe flowing full hydraulic calculation formula comprises:
In the formula:
vBe flow velocity (meter per second),
nBe the roughness coefficient (being 0.013 during concrete reinforced pipe),
DBe in caliber (rice) that i is a hydraulic slope, π is pi (3.14), and Q is flow (a cube meter per second).
Whenever across a certain distance (for example 200～300 meters); At the rainwater inspection well 7 other early-stage rainwater shunting wells 4 that are provided with; And the borehole wall of rainwater shunting well 4 and rainwater inspection well 7 is respectively equipped with cat ladder 5 in the early stage, so that regularly rainwater inspection well 7 and the mud and the sediment of early-stage rainwater shunting well 4 bottoms are cleared up.
Waterpower self-control type early-stage rainwater shunt method provided by the invention; It is the early-stage rainwater flow that shunting is handled according to need; Regulate length of connecting rod; Buoy lifting through in the early-stage rainwater shunting well comes automatic open and close isocon gate, and the shunting of the early-stage rainwater in the storm sewer system is entered sewage conduct, alleviates the pollution of early-stage rainwater to water body.Its step comprises:
1. according to local pollution of area source reduction rate index, inquire into the early-stage rainwater amount that needs shunting to handle, the maximum height that floating drum 13 should rise when closing isocon gate 11 by the hydraulic calculation formula calculating of short tube free discharge, and then the length of regulating connecting rod 12.The hydraulic calculation formula of this short tube free discharge is:
In the formula:
μ c Be the discharge coefficient of piping, π is pi (3.14),
DBe the caliber (rice) of isocon 1,
gBe (9.8 meters of acceleration of gravity
2/ second), H is that floating drum 13 is apart from the isocon 1 pipe maximum height (rice) at the interior end.
2. during rainfall, rainfall runoff gets into early-stage rainwaters shunting wells 4 through storm sewer 8, rainwater inspection well 7, hyperbolic screen cloth 6.
3. at the rainfall initial stage, owing to come the water yield less, water level is lower in the early-stage rainwater shunting well 4, and isocon gate 11 is in opening at this moment; Rainwater can flow into sewer system through isocon 1 smooth the branch in the well.
4. along with coming the water yield to increase, cause that water level raises in the early-stage rainwater shunting well 4, floating drum 13 rises, and drives isocon gate 11 and closes gradually, and then rainwater no longer gets into sewage conduct through early-stage rainwater shunting well 4, but directly flows away through storm sewer.
5. after rainfall reduced and finishes, the water level in rainwater inspection well 7 and the early-stage rainwater shunting well 4 progressively descended, and the water in the early-stage rainwater shunting well 4 enters sewer system through spilled water hole 10; Promote the drawdown in the early-stage rainwater shunting well; Floating drum 13 also descends thereupon, rests during lowest order on the floating drum pole 3, and isocon gate 11 is opened under action of gravity automatically; Rest during lowest order on the gate pole 2, the early-stage rainwater shunting during for rainfall is next time prepared.
6. after the operation regular period, be prone to settled sludge and sediment, can arrange the workman regularly through 5 times desiltings of cat ladder to the shaft bottom at rainwater inspection well 7 and early-stage rainwater shunting well 4 bottoms.
Claims (10)
1. waterpower self-control type early-stage rainwater shunt method; It is characterized in that: at the other early-stage rainwater shunting well (4) that is communicated with it that is provided with of rainwater inspection well (7); The inside of rainwater shunting well (4) is provided with the waterpower self-control type gate automatic open and close mechanism that isocon gate (11), connecting rod (12), a floating drum (13) that is linked to each other successively by hinge constitutes in the early stage; Floating drum (13) drives the keying of isocon gate (11) according to the up-down situation of water level in the early-stage rainwater shunting well; Promptly form the shunting of waterpower self-control type early-stage rainwater; Automatically the early-stage rainwater that needs shunting to handle storm sewer (8) enters sewage conduct through isocon (1), to alleviate the pollution of early-stage rainwater to water body.
2. waterpower self-control type early-stage rainwater shunt method according to claim 1; It is characterized in that: on the linked hole that is communicated with the place of rainwater inspection well (7) and early-stage rainwater shunting well (4), hyperbolic screen cloth (6) is set; With the scum silica frost in the interception rainwater, avoid scum silica frost to get in the early-stage rainwater shunting well (4).
3. waterpower self-control type early-stage rainwater shunt method according to claim 1; It is characterized in that: the top of early-stage rainwater shunting well (4) is the pools zone; The bottom is mud accumulation area (9), and isocon (1) stretches into early-stage rainwater and shunts the top that the part of well (4) is located at mud accumulation area (9).
4. waterpower self-control type early-stage rainwater shunt method according to claim 1; It is characterized in that: the part that isocon (1) stretches into early-stage rainwater shunting well (4) becomes the angle less than 90 degree with ground, and the pipe top mark of isocon (1) is high identical with the bottom absolute altitude of rainwater inspection well (7).
5. waterpower self-control type early-stage rainwater shunt method according to claim 1 is characterized in that: connecting rod (12) is adopted by two joint straight-bars and is threaded.
6. waterpower self-control type early-stage rainwater shunt method according to claim 1 is characterized in that: it is 0.04～0.06 meter spilled water hole (10) that isocon gate (11) center is provided with diameter, and screen filtration impurity is installed.
7. waterpower self-control type early-stage rainwater shunt method according to claim 1 is characterized in that: on the borehole wall of rainwater inspection well (7) and early-stage rainwater shunting well (4), cat ladder (5) is set respectively.
8. waterpower self-control type early-stage rainwater shunt method according to claim 1; It is characterized in that: the gate pole (2) that the borehole wall of two ends and early-stage rainwater shunting well (4) links to each other is set, in isocon gate (11) bottom in case gate (11) falls into the mud accumulation area (9) that early-stage rainwater is shunted well (4) during drawdown in shunting well (4); Two floating drum poles (3) that link to each other with the borehole wall of early-stage rainwater shunting well (4) are set in isocon (1) top, stop up isocon (1) when rain is shunted the interior drawdown of well (4) in the early stage to prevent floating drum (13).
9. the purposes of arbitrary said method in the claim 1 to 8 is characterized in that said method is used for the early-stage rainwater shunting of the sewerage system of urban district or sub-district; During application; According to the early-stage rainwater flow that need shuntings is handled, the length of regulating connecting rod (12), the up-down through floating drum (13) comes automatic open and close isocon gate (11); The early-stage rainwater shunting of storm sewer system is entered sewage conduct, alleviate the pollution of early-stage rainwater water body.
10. purposes according to claim 9, when it is characterized in that using, its step comprises:
1). according to local pollution of area source reduction rate index; Inquire into the early-stage rainwater amount that needs shunting to handle; The maximum height that floating drum (13) should rise when closing isocon gate (11) by the hydraulic calculation formula calculating of isocon (1) free discharge, and then the length of regulating connecting rod (12); The hydraulic calculation formula of this isocon free discharge is:
，
In the formula:
μ c Discharge coefficient for piping; π is a pi;
DBe the caliber of isocon (1), unit rice;
gBe acceleration of gravity, 9.8 meters of values
2/ second; H is that floating drum (13) is apart from isocon (1) the pipe maximum height at the interior end, unit rice;
2). during rainfall, rainfall runoff gets into early-stage rainwater shunting well (4) through storm sewer (8), rainwater inspection well (7), hyperbolic screen cloth (6);
3). at the rainfall initial stage, owing to come the water yield less, the interior water level of early-stage rainwater shunting well (4) is lower, and isocon gate this moment (11) is in opening; Rainwater can flow into sewer system through isocon (1) the smooth branch in the well;
4). along with coming the water yield to increase; Cause that the interior water level of early-stage rainwater shunting well (4) raises, floating drum (13) rises, and drives isocon gate (11) and closes gradually; Then rainwater no longer gets into sewage conduct through early-stage rainwater shunting well (4), but directly flows away through storm sewer (8);
5). after rainfall reduces and finishes; Water level in rainwater inspection well (7) and the early-stage rainwater shunting well (4) progressively descends; Water in the early-stage rainwater shunting well (4) enters sewer system through spilled water hole (10), promotes the drawdown in the early-stage rainwater shunting well, and floating drum (13) also descends thereupon; Rest during lowest order on the floating drum pole (3); Isocon gate (11) is opened under action of gravity automatically, rests during lowest order on the gate pole (2), and the early-stage rainwater shunting during for rainfall is next time prepared.
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| CN104196117A (en) * | 2014-09-09 | 2014-12-10 | 河北农业大学 | Rainwater and sewage flow converging and intercepting device |
| CN104878826A (en) * | 2014-02-28 | 2015-09-02 | 段昌和 | Urban road rainwater storage and drainage system and urban road rainwater storage and drainage method |
| CN104878824A (en) * | 2014-02-28 | 2015-09-02 | 段昌和 | Initial rainwater and later-stage rainwater diversion, storage and drainage system and storage and drainage method |
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| CN104878826A (en) * | 2014-02-28 | 2015-09-02 | 段昌和 | Urban road rainwater storage and drainage system and urban road rainwater storage and drainage method |
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| CN109797830A (en) * | 2019-03-28 | 2019-05-24 | 西北农林科技大学 | A kind of rain sewage diversion device |
| CN109797830B (en) * | 2019-03-28 | 2024-05-28 | 西北农林科技大学 | Rain and sewage diversion device |
| CN113931123A (en) * | 2021-10-20 | 2022-01-14 | 北京华能新锐控制技术有限公司 | Hydroelectric power generation river course reposition of redundant personnel floodgate |
| CN114293634A (en) * | 2021-12-29 | 2022-04-08 | 中冶南方城市建设工程技术有限公司 | Initial rainwater pollution control system |
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Application publication date: 20120321 |