CN111335437A - Shunt system for controlling sewage and initial rainwater pollution - Google Patents

Shunt system for controlling sewage and initial rainwater pollution Download PDF

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Publication number
CN111335437A
CN111335437A CN202010113108.7A CN202010113108A CN111335437A CN 111335437 A CN111335437 A CN 111335437A CN 202010113108 A CN202010113108 A CN 202010113108A CN 111335437 A CN111335437 A CN 111335437A
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CN
China
Prior art keywords
sewage
outlet
pipeline
rainwater
flow dividing
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Pending
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CN202010113108.7A
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Chinese (zh)
Inventor
丁程成
崔益斌
戴建华
王曙东
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Jiangsu Jinheshui Environment Technology Co ltd
Nanjing Institute of Environmental Sciences MEE
Original Assignee
Jiangsu Jinheshui Environment Technology Co ltd
Nanjing Institute of Environmental Sciences MEE
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Application filed by Jiangsu Jinheshui Environment Technology Co ltd, Nanjing Institute of Environmental Sciences MEE filed Critical Jiangsu Jinheshui Environment Technology Co ltd
Priority to CN202010113108.7A priority Critical patent/CN111335437A/en
Publication of CN111335437A publication Critical patent/CN111335437A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F3/00Sewer pipe-line systems
    • E03F3/02Arrangement of sewer pipe-lines or pipe-line systems
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/101Dedicated additional structures, interposed or parallel to the sewer system
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F7/00Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/02Shut-off devices
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F2201/00Details, devices or methods not otherwise provided for
    • E03F2201/10Dividing the first rain flush out of the stormwater flow

Abstract

The invention relates to a split-flow system for controlling sewage and initial rainwater pollution, which comprises a rainwater pipeline, a sewage pipeline and split-flow control units, wherein the rainwater pipeline is parallel to the sewage pipeline; the flow dividing control unit comprises a flow dividing well, a first inlet is arranged on one side of the flow dividing well, a first outlet is arranged on the flow dividing well on the other side corresponding to the first inlet, and the first inlet and the first outlet are respectively connected with rainwater pipelines on two sides of the flow dividing well; a second outlet is arranged at one side of the flow dividing well close to the sewage pipeline; the shunt control unit is provided with a passage control unit, and the passage control unit is used for controlling the opening degree of the second outlet; the invention creatively adopts the rainwater pipeline shunting mode to avoid rainwater in the early stage of rainfall, ground cleaning and sewage and rainwater mixed drainage to pollute the natural water body.

Description

Shunt system for controlling sewage and initial rainwater pollution
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a split-flow system for controlling sewage and initial rainwater pollution.
Background
Urban municipal drainage systems are mainly divided into combined drainage systems and split drainage systems. The earliest combined drainage system mixes sewage, industrial wastewater and rainwater in the same canal, and directly discharges the sewage, industrial wastewater and rainwater into a water body nearby without any treatment, so that the received water body suffers from serious pollution, and the mode is almost adopted in many old cities at home and abroad. A shut-off type combined flow drainage system is now commonly used.
The intercepting type combined drainage system is basically identical in structure to a conventional combined drainage system, and is different from the intercepting type combined drainage system in that a intercepting well is arranged between a municipal combined main pipe and a sewage treatment plant. During the work of the shutoff type combined drainage system, sewage discharged by residents and rainwater collected by rainwater openings all enter the municipal combined main pipe through the combined pipeline, rainwater collected by the rainwater openings along the municipal road also enters the municipal combined main pipe, and a shutoff well is arranged at the tail end of the main pipe. In sunny days, all sewage is conveyed to a sewage plant and is discharged to natural water after being treated. During rainfall, sewage and rainwater in the early stage of rainfall are also conveyed to a sewage plant, and are discharged to a natural water body after being treated. However, with the increase of rainfall, the runoff of rainwater also increases, and when the flow of the mixed sewage exceeds the water delivery capacity of the intercepting main pipe, part of the mixed sewage overflows and directly enters the natural water body.
When the existing combined drainage system is used for intercepting a natural rainwater flow, the intercepting times are not enough, so that the intercepting well cannot intercept surface source pollutants, the surface source pollutants directly enter a natural water body and pollute the natural water body, ② if the surface source pollutants are controlled, the size of the intercepting well is increased, the capacity of a sewage plant is increased, the interception of the intercepting well is controlled in a coarse mode, the initial rainwater cannot be accurately intercepted, the split drainage system is divided into two drainage systems of a complete split drainage system and an incomplete split drainage system according to different rainwater removal modes, the complete split drainage system is used for completely separating rainwater from sewage, industrial sewage, the rainwater is conveyed by different pipelines, the sewage discharged by residents enters a sewage main sewage pipe, and then is conveyed to a sewage water main pipeline after the sewage water enters a sewage treatment area, the sewage water main pipeline enters a sewage drainage balcony, the sewage water main pipeline is conveyed to a sewage water drainage area, the sewage water drainage system is used for directly, the sewage water drainage system for intercepting the natural rainwater and the sewage, the rainwater enters a sewage water drainage pipeline for the natural rainwater, the sewage is conveyed by a sewage treatment area, the sewage water drainage pipeline, the sewage water main sewage water drainage system is also used for collecting sewage, the sewage water drainage pipeline for the natural rainwater, the sewage is divided sewage water drainage pipeline for the natural rainwater drainage system for collecting sewage, the natural rainwater drainage pipeline for the natural rainwater drainage system for the natural rainwater drainage of the natural rainwater drainage, the natural rainwater drainage pipeline for the natural rainwater drainage system is divided sewage, the natural rainwater drainage pipeline for the natural rainwater drainage of the natural intercepting well, the natural intercepting pipeline for the sewage drainage of the natural intercepting well, the sewage drainage of the natural intercepting well, the sewage drainage of the rainwater drainage of the sewage drainage of the natural intercepting well, the sewage drainage of the natural intercepting well, the sewage drainage of the natural intercepting is not used for the natural intercepting well, the sewage drainage of the natural intercepting well, the natural intercepting system is not used for the natural rainwater drainage of the sewage drainage of the natural rainwater drainage of the natural intercepting system is not used for the sewage of the natural intercepting well, the sewage of the natural intercepting, the sewage is not used for the natural intercepting well, the sewage of the natural intercepting, the sewage is not used for the natural rainwater drainage of the sewage is not used for the natural rainwater drainage of the natural intercepting well, the natural intercepting, the natural sewage of the natural intercepting well, the natural intercepting, the natural rainwater drainage of the natural rainwater drainage.
In general, the current drainage system has the following problems: first, control of surface source contamination is not possible; secondly, the control is extensive, and the sewage and initial rainwater cannot be accurately controlled; thirdly, the pipelines are connected in a mixed mode, and sewage is directly discharged to a natural water body; fourth, for areas with tight land, end management cannot be effectively implemented.
The invention discloses a Chinese invention patent with the publication number of CN105625545A and the invention name of 'a regional fragmented rainwater treatment system based on a shunt pipe network', and provides a new pipe network division method to solve the problems. According to the application, the whole pipe network is divided into a plurality of latticed areas according to the area, an independent online rainwater treatment facility is arranged in each area, and rainwater in the areas is comprehensively treated through the online rainwater treatment facilities in the areas. However, after a large number of experiments, the inventor finds that the tail end treatment thought improves the rainwater treatment efficiency and degree in the corresponding area to a certain extent, and controls the non-point source pollution in the area; however, the problem that surface runoff collection is difficult to control accurately still exists, and the time difference exists between the collection of the initial rain at the farthest end and the nearest end of the online rainwater treatment facility, and the collection of the initial rain and surface source pollution cannot be controlled accurately, so that accurate management cannot be achieved. In addition, due to the problem of urban planning, the division of the urban pipe network into grid-shaped areas has a lot of interferences and very high implementation difficulty, which causes great troubles to the urban pipe network arrangement mode of the mode.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a split-flow system for controlling pollution of sewage and initial rainwater, which can solve the problems of rainwater at the initial stage of rainfall, ground cleaning, and mixed drainage of sewage and rainwater to pollute natural water.
The invention realizes the purpose through the following technical scheme:
a split-flow system for controlling sewage and initial rainwater pollution comprises a rainwater pipeline, a sewage pipeline and split-flow control units, wherein the rainwater pipeline is parallel to the sewage pipeline, a plurality of split-flow control units are arranged on the rainwater pipeline, and the split-flow control units are connected with the sewage pipeline through split-flow pipelines;
the flow dividing control unit comprises a flow dividing well, a first inlet is arranged on one side of the flow dividing well, a first outlet is arranged on the flow dividing well on the other side corresponding to the first inlet, and the first inlet and the first outlet are respectively connected with rainwater pipelines on two sides of the flow dividing well;
a second outlet is arranged on one side of the flow dividing well close to the sewage pipeline, the second outlet is connected with the inlet end of the flow dividing pipeline, and the outlet end of the flow dividing pipeline is connected with the sewage pipeline;
the height of the first outlet is greater than that of the second outlet and is positioned above the second outlet;
the flow dividing control unit is provided with a passage control unit which is used for controlling the opening degree of the second outlet.
As a further optimization scheme of the invention, a plurality of sewage wells are arranged on the sewage pipeline, and inlets connected with the diversion pipeline are arranged on the sewage wells.
As a further refinement of the invention, the sewage conduit is finally connected to a sewage treatment plant.
As a further optimization scheme of the invention, the access control unit comprises a dynamic power transmission mechanism, a lifting mechanism, an opening and closing mechanism and a reset mechanism, wherein the dynamic power transmission mechanism is connected with the opening and closing mechanism through the lifting mechanism, and the opening and closing mechanism is arranged on the second outlet to control the opening degree of the second outlet; the reset mechanism is connected with the lifting mechanism to drive the opening and closing mechanism to reset;
the dynamic power transmission mechanism comprises an impeller, an input shaft, a reversing transmission mechanism and an output shaft;
the lifting mechanism comprises a gear and a rack;
the opening and closing mechanism comprises a valve plate and a sliding seat;
the reset mechanism comprises a tension spring;
in the rainwater pipeline of first import one side was located to the impeller, the fixed lower extreme of locating the input shaft of impeller, the one end of output shaft is connected through switching-over drive mechanism in the upper end of input shaft, the other end fixed connection gear of output shaft, gear and rack toothing, the lower extreme fixed connection valve plate of rack, valve plate and slide sliding connection, be equipped with the extension spring between the top of valve plate and the slide.
Rainwater in the rainwater pipeline impacts the impeller to drive the impeller to rotate, the impeller rotates to drive the input shaft to rotate, the input shaft rotates to drive the output shaft to rotate through transmission of the transmission mechanism, the output shaft rotates to drive the gear to rotate, the gear drives the rack to move up and down, the valve plate is further driven to move up and down, the covering area of the second outlet is changed by the relative position of the valve plate moving and the second outlet, and the opening degree of the valve plate is adjusted.
As a further optimization scheme of the invention, the reversing transmission mechanism is a bevel gear transmission mechanism and comprises a driving bevel gear and a driven bevel gear, the driving bevel gear and the driven bevel gear are respectively and fixedly connected with an input shaft and a driven shaft, and the driving bevel gear is meshed with the driven bevel gear.
As a further optimization scheme of the invention, sleeves are arranged outside the input shaft and the output shaft, a bearing is arranged between the input shaft and the sleeves, and a bearing is arranged between the output shaft and the sleeves. The sleeve isolates the mechanical structure from the soil on one hand and supports the input shaft and the output shaft on the other hand.
As a further optimization scheme of the invention, the output shaft is connected with a limiting mechanism, the limiting mechanism comprises a ratchet wheel, a pawl, a spring, a sliding block, a sliding rail, a connecting rod and a floating ball, the ratchet wheel is fixedly arranged on the output shaft, the ratchet wheel is matched with the pawl, the pawl is connected with the sliding block through a pin shaft, the spring is arranged between the bottom of the pawl and the sliding block, the sliding block is connected with the sliding rail in the shunt well in a sliding manner, the bottom of the sliding block is fixedly connected with the upper end of the connecting rod, and the.
As a further optimization scheme of the invention, the access control unit is an electric valve, the electric valve is connected with a control system, the control system comprises a controller, a power supply unit and a rainfall sensor, the controller is connected with the rainfall sensor and the electric valve, and both the electric valve and the controller are connected with the power supply unit.
As a further optimization scheme of the invention, the electric valve comprises a motor and a valve, an output shaft of the motor is connected with a valve rod of the valve, the motor is connected with a power supply unit through a driver, and a signal input end of the driver is connected with a signal output end of the controller.
The invention has the beneficial effects that:
1) the invention creatively adopts a rainwater pipeline shunting mode, the shunting control unit is arranged to be controllably communicated with the sewage pipeline, sewage with great pollution, such as initial rainwater, ground cleaning water, balcony sewage and the like, is discharged into the sewage pipeline, the second outlet is closed in a later rainfall period of the initial rainfall period, the rainwater is normally discharged into a natural water body, and meanwhile, the normal function of the rainwater pipeline is kept;
2) the passage control unit creatively adopts a pure mechanical structure, can obtain power through flowing water in the pipeline, does not need an external power source, can be linked with the flow of rainwater in the pipeline and dynamically synchronous, and achieves the effect of dynamically controlling the valve plate through the flow of the rainwater in the pipeline, thereby solving the problem of pollution discharge of initial rain.
Drawings
FIG. 1 is a schematic diagram of a system according to the present invention in a first embodiment;
fig. 2 is a schematic diagram of a shunt control unit according to the present invention in a first embodiment on sunny days;
FIG. 3 is a schematic diagram of the flow distribution control unit according to the first embodiment of the present invention during the initial rain, ground cleaning and mixed drainage of rainwater and sewage;
FIG. 4 is a schematic view of the shunt control unit of the present invention in a rainy day according to one embodiment;
fig. 5 is a schematic structural diagram of a shunt control unit according to the second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a shunt control unit according to a third embodiment of the present invention;
FIG. 7 is a schematic view showing the structure of the ratchet and pawl of the present invention in the third embodiment.
In the figure: the system comprises a rainwater pipeline 1, a sewage pipeline 2, a flow dividing control unit 3, a flow dividing well 4, a first inlet 5, a first outlet 6, a second outlet 7 and a passage control unit 8;
a dynamic power transmission mechanism 81, a lifting mechanism 82, an opening and closing mechanism 83 and a reset mechanism 84;
an impeller 811, an input shaft 812, a reversing transmission mechanism 813, and an output shaft 814;
gear 821, rack 822;
valve plate 831, slide 832;
a tension spring 841;
ratchet 851, pawl 852, spring 853, slider 854, slide 855, link 856, and float 857.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example one
As shown in fig. 1-4, a split-flow system for controlling sewage and initial rainwater pollution comprises a rainwater pipeline 1, a sewage pipeline 2 and split-flow control units 3, wherein the rainwater pipeline 1 is parallel to the sewage pipeline 2, a plurality of split-flow control units 3 are arranged on the rainwater pipeline 1, and the split-flow control units 3 are connected with the sewage pipeline 2 through split-flow pipelines;
the flow dividing control unit 3 comprises a flow dividing well 4, a first inlet 5 is arranged on one side of the flow dividing well 4, a first outlet 6 is arranged on the flow dividing well 4 on the other side corresponding to the first inlet 5, and the first inlet 5 and the first outlet 6 are respectively connected with rainwater pipelines 1 on two sides of the flow dividing well 4;
a second outlet 7 is arranged at one side of the flow dividing well 4 close to the sewage pipeline 2, the second outlet 7 is connected with the inlet end of the flow dividing pipeline, and the outlet end of the flow dividing pipeline is connected with the sewage pipeline 2;
the height of the first outlet 6 is greater than that of the second outlet 7, and the first outlet is positioned above the second outlet 7;
the flow dividing control unit 3 is provided with a passage control unit 8, and the passage control unit 8 is used for controlling the opening degree of the second outlet 7;
for rainfall, rainwater enters the rainwater pipeline 1 from the ground well cover in the early stage of rainfall and then is discharged into the sewage pipeline 2 from the diversion pipeline, the second outlet 7 is closed by the access control unit 8 after the early stage of rainfall, and the rainwater is discharged from the first outlet 6 and finally discharged into natural water bodies such as rivers.
For ground cleaning, the water is directly discharged from the second outlet 7 into the sewage pipeline 2 and not discharged into the natural water body due to the small water amount.
For mixed drainage of sewage and rainwater, although balcony sewage and the like are drained into the rainwater pipeline 1, the sewage is directly drained from the second outlet 7 and enters the sewage pipeline 2 without being drained into a natural water body due to small discharge capacity.
Preferably, the sewer pipe 2 is provided with a plurality of sewer wells, and the sewer wells are provided with inlets connected with the diversion pipes.
Preferably, the sewage pipe 2 is finally connected to a sewage treatment plant.
In order to solve the problem that in the prior art, initial rainwater, ground cleaning water, sewage, rainwater mixed drainage and other phenomena cause that sewage with large pollution such as initial rainwater, ground cleaning water, balcony sewage and the like enters a natural water body and is controllably communicated with a sewage pipeline 2 through a split-flow control unit 3, the initial rainwater, the ground cleaning water, the balcony sewage and other sewage with large pollution are drained into the sewage pipeline 2, a second outlet 7 is sealed in a precipitation period after the initial precipitation period, and the rainwater is normally drained into the natural water body.
Example two
As shown in fig. 5, as a specific embodiment, the pathway control unit 8 includes a dynamic power transmission mechanism 81, a lifting mechanism 82, an opening and closing mechanism 83, and a reset mechanism 84, wherein the dynamic power transmission mechanism 81 is connected to the opening and closing mechanism 83 through the lifting mechanism 82, and the opening and closing mechanism 83 is disposed on the second outlet 7 to control the opening degree of the second outlet 7; the reset mechanism 84 is connected with the lifting mechanism 82 to drive the opening and closing mechanism 83 to reset;
the dynamic power transmission mechanism 81 comprises an impeller 811, an input shaft 812, a reversing transmission mechanism 813 and an output shaft 814;
the lifting mechanism 82 includes a gear 821 and a rack 822;
the opening and closing mechanism 83 includes a valve plate 831 and a slider 832;
the reset mechanism 84 includes a tension spring 841;
impeller 811 is located in the rainwater pipeline 1 of first import 5 one side, and impeller 811 is fixed to be located the lower extreme of input shaft 812, and the one end of output shaft 814 is connected through switching-over drive mechanism 813 in the upper end of input shaft 812, and the other end fixed connection gear 821 of output shaft 814, gear 821 and rack 822 meshing, the lower extreme fixed connection valve plate 831 of rack 822, valve plate 831 and slide 832 sliding connection, be equipped with extension spring 841 between the top of valve plate 831 and slide 832.
Rainwater in the rainwater pipeline 1 impacts the impeller 811 to drive the impeller 811 to rotate, the impeller 811 rotates to drive the input shaft 812 to rotate, the input shaft 812 rotates to drive the output shaft 814 to rotate through transmission of the transmission mechanism, the output shaft 814 rotates to drive the gear 821 to rotate, the gear 821 drives the rack 822 to move up and down, the valve plate 831 is further driven to move up and down, the covering area of the second outlet 7 is changed by the relative position of the valve plate 831 with the second outlet 7, and the opening degree of the valve plate 831 is adjusted.
Preferably, the reversing transmission mechanism 813 is a bevel gear 821 transmission mechanism, and includes a driving bevel gear 821 and a driven bevel gear 821, the driving bevel gear 821 and the driven bevel gear 821 are respectively and fixedly connected with the input shaft 812 and the driven shaft, and the driving bevel gear 821 and the driven bevel gear 821 are engaged with each other.
Preferably, sleeves are arranged outside the input shaft 812 and the output shaft 814, a bearing is arranged between the input shaft 812 and the sleeves, and a bearing is arranged between the output shaft 814 and the sleeves. The sleeve isolates the mechanical structure from contact with the soil on one hand and supports the input shaft 812 and the output shaft 814 on the other hand.
The working principle of the invention is as follows: in sunny days, the impeller 811 cannot be driven to rotate due to the fact that the flow rate in the rainwater pipeline 1 is small and the liquid level is low, so that the valve plate 831 is kept at a high position due to the action of the tension spring 841, and the second outlet 7 is in a normally open state;
when the rainfall falls, the initial rainfall water flow drives the impeller 811 to rotate so as to drive the input shaft 812 to rotate, the input shaft 812 drives the output shaft 814 to rotate through the reversing transmission mechanism 813, and then the lifting mechanism 82 drives the valve plate 831 to descend, the process is a continuous process and is not a transient process, the process that the valve plate 831 descends until the second outlet 7 is completely closed has a certain time T, the rotating speed of the impeller 811 is basically unchanged, so that the mechanical transmission ratio of the dynamic power transmission mechanism 81 and the lifting mechanism 82 can be changed to adjust the time T, the second outlet 7 is still in an open state within the time T, the initial rainfall at the initial rainfall period is discharged into the sewage pipeline 2 from the second outlet 7, the natural water body is prevented from being polluted, the diversion of the rainfall is realized, the second outlet 7 is closed after the time T, and the rainwater is discharged into the natural water body from the first outlet 6.
Even if the impeller 811 rotates due to the ground cleaning, the second outlet 7 is not closed because the drainage time is short due to the ground cleaning, and therefore, the sewage from the ground cleaning is discharged into the sewage port through the second outlet 7, which does not cause the problem that the ground cleaning water is mistakenly discharged into the natural water body.
EXAMPLE III
As shown in fig. 6-7, as an optimization of the second embodiment, the output shaft 814 is connected to a limiting mechanism, the limiting mechanism includes a ratchet 851, a pawl 852, a spring 853, a slider 854, a slide rail 855, a connecting rod 856 and a floating ball 857, the ratchet 851 is fixedly disposed on the output shaft 814, the ratchet 851 is matched with the pawl 852, the pawl 852 is connected to the slider 854 through a pin, the spring 853 is disposed between the bottom of the pawl 852 and the slider 854, the slider 854 is slidably connected to the slide rail 855 in the shunt well 4, the bottom of the slider 854 is fixedly connected to the upper end of the connecting rod 856, and the lower end of the connecting rod 856 is fixedly connected to the floating ball 857.
The floating ball 857 is influenced by the liquid level in the diversion well 4, the floating ball 857 is positioned at a low position due to no liquid level or low liquid level in sunny days, the sliding block 854 and the pawl 852 are also positioned at the low position, and the pawl 852 is separated from the ratchet 851;
the liquid level in the diversion well 4 rises in rainy days, drives floater 857 and pawl 852 to rise, and pawl 852 cooperates with ratchet 851, makes ratchet 851 unidirectional rotation, and output shaft 814 drives ratchet 851 unidirectional rotation and drives valve plate 831 decline this moment, because the effect of pawl 852, extension spring 841 can not drive valve plate 831 and reset (output shaft 814 reversal), keeps the state that valve plate 831 can only descend.
When the liquid level in the shunt well 4 descends in sunny days, the floating ball 857 and the pawl 852 are driven to descend to be separated from the ratchet 851, the unidirectional limiting of the ratchet 851 is relieved, and the tension spring 841 can drive the valve plate 831 to reset to reopen the second outlet 7.
A spring 853 is provided at the bottom of the pawl 852 and the spring 853 is capable of maintaining the engagement of the pawl 852 with the ratchet 851 to prevent gravity from causing the pawl 852 to fail to engage the ratchet 851.
The height of the floating ball 857 is 1/4 of the height of the first outlet 6 in sunny days. So that the float 857 can rise earlier to drive the pawl 852 to engage with the ratchet 851.
Example four
As another embodiment with higher cost, the access control unit 8 is an electric valve, the electric valve is connected with a control system, the control system comprises a controller, a power supply unit and a rainfall sensor, the controller is connected with the rainfall sensor and the electric valve, and both the electric valve and the controller are connected with the power supply unit.
Preferably, the controller internally comprises a circuit module, and the circuit module is connected with the power supply unit. The circuit module can convert the power supply of the power supply unit into a low-voltage power supply for the controller.
Preferably, the electrically operated valve comprises a motor and a valve, wherein an output shaft 814 of the motor is connected with a valve rod of the valve, the motor is connected with the power supply unit through a driver, and a signal input end of the driver is connected with a signal output end of the controller.
Preferably, the power supply unit adopts a solar battery. The solar energy is adopted for power supply, the arrangement is flexible, and a common storage battery and commercial power can be adopted for power supply.
The embodiment is more automatic, the electric valve is closed to close the second outlet 7 only when the rainfall sensor detects rainfall, the second outlet 7 is opened at other moments, and sewage with high pollution, such as ground cleaning water, balcony sewage and the like, is discharged into the sewage pipeline 2;
when the valve is detected to be closed in a delaying way, the initial rainwater in the delaying stage can still enter the sewage pipeline 2 through the second outlet 7, and the clean rainwater is finally discharged into the natural water body through the first outlet 6 after the valve is closed.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (9)

1. The utility model provides a control sewage and initial stage rainwater pollution's reposition of redundant personnel system which characterized in that: the rainwater pipeline is parallel to the sewage pipeline, a plurality of shunt control units are arranged on the rainwater pipeline, and the shunt control units are connected with the sewage pipeline through shunt pipelines;
the flow dividing control unit comprises a flow dividing well, a first inlet is arranged on one side of the flow dividing well, a first outlet is arranged on the flow dividing well on the other side corresponding to the first inlet, and the first inlet and the first outlet are respectively connected with rainwater pipelines on two sides of the flow dividing well;
a second outlet is arranged on one side of the flow dividing well close to the sewage pipeline, the second outlet is connected with the inlet end of the flow dividing pipeline, and the outlet end of the flow dividing pipeline is connected with the sewage pipeline;
the height of the first outlet is greater than that of the second outlet and is positioned above the second outlet;
the flow dividing control unit is provided with a passage control unit which is used for controlling the opening degree of the second outlet.
2. The shunt system for controlling polluted water and initial rainwater according to claim 1, wherein: the sewage pipeline is provided with a plurality of sewage wells, and the sewage wells are provided with inlets connected with the diversion pipeline.
3. The shunt system for controlling polluted water and initial rainwater according to claim 1, wherein: the sewer pipe is finally connected to a sewage treatment plant.
4. The shunt system for controlling polluted water and initial rainwater according to claim 1, wherein: the access control unit comprises a dynamic power transmission mechanism, a lifting mechanism, an opening and closing mechanism and a reset mechanism, the dynamic power transmission mechanism is connected with the opening and closing mechanism through the lifting mechanism, and the opening and closing mechanism is arranged on the second outlet and controls the opening degree of the second outlet; the reset mechanism is connected with the lifting mechanism to drive the opening and closing mechanism to reset;
the dynamic power transmission mechanism comprises an impeller, an input shaft, a reversing transmission mechanism and an output shaft;
the lifting mechanism comprises a gear and a rack;
the opening and closing mechanism comprises a valve plate and a sliding seat;
the reset mechanism comprises a tension spring;
in the rainwater pipeline of first import one side was located to the impeller, the fixed lower extreme of locating the input shaft of impeller, the one end of output shaft is connected through switching-over drive mechanism in the upper end of input shaft, the other end fixed connection gear of output shaft, gear and rack toothing, the lower extreme fixed connection valve plate of rack, valve plate and slide sliding connection, be equipped with the extension spring between the top of valve plate and the slide.
5. The shunt system for controlling polluted water and initial rainwater according to claim 4, wherein: the reversing transmission mechanism is a bevel gear transmission mechanism and comprises a driving bevel gear and a driven bevel gear, the driving bevel gear and the driven bevel gear are respectively and fixedly connected with an input shaft and a driven shaft, and the driving bevel gear is meshed with the driven bevel gear.
6. The shunt system for controlling polluted water and initial rainwater according to claim 4, wherein: the outer portions of the input shaft and the output shaft are both provided with sleeves, bearings are arranged between the input shaft and the sleeves, and bearings are arranged between the output shaft and the sleeves.
7. The shunt system for controlling polluted water and initial rainwater according to claim 4, wherein: the output shaft is connected with the limiting mechanism, the limiting mechanism comprises a ratchet wheel, a pawl, a spring, a sliding block, a sliding rail, a connecting rod and a floating ball, the ratchet wheel is fixedly arranged on the output shaft, the ratchet wheel is matched with the pawl, the pawl is connected with the sliding block through a pin shaft, the spring is arranged between the bottom of the pawl and the sliding block, the sliding block is slidably connected with the sliding rail in the shunt well, the bottom of the sliding block is fixedly connected with the upper end of the connecting rod, and the lower end of.
8. The shunt system for controlling polluted water and initial rainwater according to claim 1, wherein: the passage control unit is an electric valve, the electric valve is connected with a control system, the control system comprises a controller, a power supply unit and a rainfall sensor, the controller is connected with the rainfall sensor and the electric valve, and the electric valve and the controller are both connected with the power supply unit.
9. The shunt system for controlling polluted water and initial rainwater according to claim 8, wherein: the electric valve comprises a motor and a valve, an output shaft of the motor is connected with a valve rod of the valve, the motor is connected with a power supply unit through a driver, and a signal input end of the driver is connected with a signal output end of the controller.
CN202010113108.7A 2020-02-24 2020-02-24 Shunt system for controlling sewage and initial rainwater pollution Pending CN111335437A (en)

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