Low-carbon intelligent water body intercepting device for urban sewage pipe network

Abstract

The utility model discloses a low-carbon intelligent water body intercepting device for an urban sewage pipe network, which comprises an intercepting well, a sewage well is arranged on one side of the intercepting well, a weir wall is arranged in the intercepting well, a rotary hydraulic weir gate is arranged on the weir wall, and the inside of the intercepting well is divided into a sewage discharge cavity and an intercepting cavity by the weir wall and the rotary hydraulic weir gate. A first ultrasonic liquid level device is arranged in the sewage discharging cavity, and a second ultrasonic liquid level device is arranged in the intercepting cavity. A filtering mechanism and a flow limiting hole communicated with the sewage well are arranged at the output end of the confluence water inlet pipe in the sewage discharging cavity, a flow limiting valve is arranged at the position of the flow limiting hole, a dry season water inlet pipe communicated with the sewage well and a rainy season water inlet pipe communicated with the sewage discharging cavity of the intercepting well are arranged on the confluence water inlet pipe, and an isolation mechanism is arranged at the output end of the rainy season water inlet pipe. The input end of the confluence water outlet pipe is communicated with the intercepting cavity. By closing the rotary hydraulic weir gate and opening the flow limiting hole at the initial stage of rainfall, the first rain is sent to a sewage treatment plant for treatment, so that the first rain and sewage are intercepted and prevented from overflowing into a natural water body, and the pollution of the first rain to the water environment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water treatment technical field, more particularly to a kind of urban sewage pipe network low-carbon intelligent water body intercepting device. BACKGROUND

[0002] Drainage pipeline system is composed of pipeline and its accessory structures for collecting and transporting urban sewage, sewage flows into the main pipe from branch pipe, and then flows into the main pipe, and finally flows into sewage treatment plant, the pipeline is small to large, and is distributed like river, in a dendritic shape.

[0003] At present, there are two main forms of urban drainage system, namely combined sewer system and separate sewer system. New urban areas in China adopt separate sewer system, but many old urban areas still use combined sewer system.

[0004] Combined sewer system mainly plays the role of transporting domestic sewage in dry season, and in rainy season, the initial rainwater refers to the rainwater in the initial stage of rainfall, generally refers to the rainfall in the initial stage of 15min-30min or the surface runoff of 10mm-15mm thick formed on the ground.

[0005] Because the initial rainwater dissolves a large amount of acidic gases, automobile exhaust, factory waste gas and other polluting gases in the air, and then washes the roof and road, the initial rainwater contains a large amount of pollutants.

[0006] Investigation shows that the toxic and harmful substances carried by the initial rainwater are more than domestic sewage, the pollution degree of the initial rainwater is high, mainly including SS, COD, insoluble inorganic matter, etc., in the form of mud, leaves, cigarette butts, plastic products, oil, food residues, etc., and the water quality even exceeds the pollution degree of ordinary urban sewage.

[0007] To solve this problem, the current solution is to set an intercepting device, which can effectively improve the river pollution problem and solve the pollution problem of the initial rainwater by using the intercepting device to separate and discharge sewage and rainwater.

[0008] However, the current popular intercepting device mostly determines whether it rains by using a liquid level meter, so as to realize the interception of initial rainwater, but for some coastal areas, areas with high groundwater level and areas with large water consumption, the flow of combined pipe is large, and the pipe is usually operated at high water level, and the pipe fullness is greater than the design fullness. When the flow exceeds the capacity of combined sewer system, part of the rain and sewage will overflow into natural water body, causing overflow pollution.

[0009] With the acceleration of urbanization, the overflow pollution problem of urban combined sewer pipe has become increasingly serious, and part of the rain and sewage mixed water overflows into river without treatment, causing serious water pollution, which has become one of the main factors restricting the improvement of water quality in some cities. Utility model content

[0010] The utility model discloses a kind of urban sewage pipe network low-carbon intelligent water body intercepting devices, to solve the problems presented in the above background art.

[0011] To achieve the above object, the utility model provides the following technical scheme: a kind of urban sewage pipe network low-carbon intelligent water body intercepting devices, including intercepting well, the intercepting well side is equipped with sewage well, weir wall is equipped in the intercepting well, and rotating hydraulic weir door is equipped on the weir wall, the weir wall and rotating hydraulic weir door will be separated into sewage cavity and intercepting cavity in intercepting well, first ultrasonic liquid level gauge is equipped in the sewage cavity, and second ultrasonic liquid level gauge is equipped in the intercepting cavity, filter mechanism is equipped in the sewage cavity corresponding to the output end of confluent inlet pipe, flow limiting hole that communicates with sewage well is equipped in the sewage cavity, and flow limiting valve is equipped at flow limiting hole, confluent inlet pipe is equipped with dry season inlet pipe that communicates with sewage well and rain season inlet pipe that communicates with the sewage cavity of intercepting well on the confluent inlet pipe, isolating mechanism is equipped at the output end of rain season inlet pipe, confluent outlet pipe is equipped on the intercepting cavity, and the input end of confluent outlet pipe is connected with the intercepting cavity.

[0012] Preferably, the isolating mechanism includes a isolating plate hinged to the output end of the rain season inlet pipe, the isolating plate side is connected to the side wall of the output end of the rain season inlet pipe through the telescopic spring and telescopic guide column, and the isolating plate can control the opening or closing of the output end of the rain season inlet pipe through the telescopic spring and telescopic guide column.

[0013] Preferably, a guide rail is arranged in the sewage cavity, the guide rail is arranged along the height direction of the sewage cavity, and a sliding block is arranged on the filter mechanism and can be clamped into the guide rail and slide along the arrangement direction of the guide rail, and the filter mechanism includes a basket grid.

[0014] Preferably, a lifting ring is arranged on the top of the filter mechanism, and the filter mechanism is connected with the chain through the lifting ring.

[0015] Preferably, a intercepting inlet pipe is arranged in the intercepting well, and the output end of the intercepting inlet pipe extends into the sewage well, a intercepting outlet pipe is arranged on the sewage well, and the input end of the intercepting outlet pipe is connected with the sewage well.

[0016] Preferably, a solar panel, a rain gauge and a control station are arranged on the top of the intercepting well and the sewage well.

[0017] Preferably, a movable cover plate is arranged on the top of the sewage well, the sewage cavity and the intercepting cavity, and an anti-falling net is arranged on the bottom of the movable cover plate.

[0018] Preferably, an inspection hole is arranged below the movable cover plate.

[0019] Preferably, the movable cover is provided with an exhaust hole, and the exhaust hole is provided with a gas filtering device.

[0020] Preferably, the sewage well, the sewage discharging cavity and the interception cavity are internally provided with a footboard.

[0021] The technical effects and advantages of the city sewage pipe network low-carbon intelligent water interception device are as follows:

[0022] 1. The rain gauge, the first ultrasonic liquid level meter and the second ultrasonic liquid level meter can jointly determine whether rainfall occurs, the rotary liquid dynamic weir door is closed and the flow limiting hole is opened in the early stage of rainfall, the initial rainwater can be sent to the sewage treatment plant for treatment, the rotary liquid dynamic weir door is opened and the flow limiting hole is closed in the middle and later stages of rainfall, the unpolluted rainwater in the middle and later stages of rainfall is sent to the rainwater collection and utilization system through the combined outflow pipe, the problem of the initial rainwater being seriously polluted can be solved, interception of the initial rainwater and sewage is realized, overflow into the natural water body is avoided, the pollution of the initial rainwater to the water environment is reduced, and the rainwater resources are better utilized.

[0023] 2. The isolation mechanism is provided, interception and flow separation in different seasons of dry season and rainy season can be realized, a large amount of rainwater and sewage in the rainy season impacts the isolation mechanism, the impact force of the isolation mechanism is no longer sealed at the output end of the rainy season water inlet pipe, the rainwater and sewage are discharged to the sewage treatment plant through the output end of the rainy season water inlet pipe for treatment, the rainwater and sewage backflow impact the isolation mechanism, the rainwater and sewage backflow cannot overflow to the natural water body through the rainy season water inlet pipe, one-way flow of the rainwater and sewage is realized, overflow pollution of the rainwater and sewage is avoided, and pollution to the natural water body is avoided.

[0024] 3. The filtering mechanism is provided, the initial rainwater and overflow sewage can be blocked and filtered, the working efficiency of the interception well for sewage treatment is improved, the burden of the sewage treatment plant can be reduced in the early stage of rainfall, the collection and treatment of the sewage by the sewage treatment plant are facilitated, the sewage and pollutants are avoided from directly flowing into the water area, the ecological environment is improved, when impurities accumulated in the filtering mechanism are too much, the maintenance personnel can open the movable cover to lift the entire filtering mechanism on a sunny day, the filtered impurities can be cleaned in time, the phenomenon of blockage can be avoided, and continuous drainage performance is ensured.

[0025] 4. Due to the setting of the interception water inlet pipe and the interception water outlet pipe, the interception well can be used in series, and the sewage treatment capacity is increased. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 It is a structure top view drawing of the utility model;

[0027] Fig. 2 It is an internal structure schematic view of the utility model;

[0028] Fig. 3The utility model discloses a sectional view.

[0029] In the drawing: 1, sewage well; 2, intercepting well; 3, combined inflow pipe; 4, filtering mechanism; 5, isolation mechanism; 6, combined outflow pipe; 7, intercepting inflow pipe; 8, intercepting outflow pipe; 11, rain gauge; 12, control station; 13, movable cover plate; 14, pedal; 15, solar panel; 21, weir wall; 22, rotary hydraulic weir door; 23, sewage discharge cavity; 24, intercepting cavity; 25, first ultrasonic liquid leveler; 26, second ultrasonic liquid leveler; 27, flow limiting hole; 28, flow limiting valve; 31, dry season inflow pipe; 32, rainy season inflow pipe; 41, guide rail; 42, sliding block; 51, isolation plate; 52, extension spring; 53, extension guide column. DETAILED DESCRIPTION

[0030] The utility model discloses an embodiment of the utility model will be combined with the drawings in the embodiment of the utility model below Figs. 1-3 The technical scheme in the embodiment of the utility model is described clearly and completely, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of the utility model protection.

[0031] The embodiment provides a kind of urban sewage pipe network low-carbon intelligent water body intercepting device as shown in Figs. 1-3 In the embodiment of the utility model, the shape of the intercepting well 2 and the sewage well 1 is a cube or a cuboid.

[0032] The intercepting well 2 is provided with a sewage well 1 at the side, and the shape of the intercepting well 2 and the sewage well 1 is a cube or a cuboid in the utility model.

[0033] The intercepting well 2 is provided with a weir wall 21, and the weir wall 21 is provided with a rotary hydraulic weir door 22, and the weir wall 21 is provided with a weir gate, and the rotary hydraulic weir door 22 can cover the weir gate.

[0034] The weir wall 21 and the rotary hydraulic weir door 22 divide the intercepting well 2 into a sewage discharge cavity 23 and an intercepting cavity 24, the first ultrasonic liquid leveler 25 is arranged in the sewage discharge cavity 23, and the second ultrasonic liquid leveler 26 is arranged in the intercepting cavity 24.

[0035] Inside the sewage cavity 23, the outlet of the combined sewer inlet pipe 3 is connected with the filtering mechanism 4. Through the setting of the filtering mechanism 4, the initial rainwater and overflow sewage can be blocked and filtered, the working efficiency of the intercepting well 2 for sewage treatment is improved, the burden of the sewage treatment plant can be reduced in the initial stage of rainfall, the collection and treatment of sewage by the sewage treatment plant are facilitated, so that the sewage and pollutants are avoided from directly flowing into water areas, the ecological environment is improved, and when the impurities accumulated in the filtering mechanism 4 are too much, the maintenance personnel can open the movable cover plate 13 to lift the entire filtering mechanism 4 in a sunny day, the filtered impurities can be cleaned in time, the phenomenon of blockage can be avoided, and the continuous drainage performance is ensured.

[0036] The sewage cavity 23 is provided with a flow limiting hole 27 communicated with the sewage well 1, and a flow limiting valve 28 is arranged at the flow limiting hole 27.

[0037] In the embodiment, the flow limiting valve 28 is an electric signal controlled flow limiting valve 28, so that the flow limiting valve 28 has simple structure, small space occupation, convenient installation, is not easy to be blocked, and is easy to maintain, and good economic benefit and environmental benefit can be achieved.

[0038] In the embodiment, the flow limiting valve 28 is made of stainless steel, and in addition, the overall size and space structure of the flow limiting valve 28 need to be designed according to the actual hydraulic conditions and after hydraulic calculation.

[0039] The combined sewer inlet pipe 3 is provided with a dry season water inlet pipe 31 communicated with the sewage well 1 and a rain season water inlet pipe 32 communicated with the sewage cavity 23 of the intercepting well 2, and the outlet of the rain season water inlet pipe 32 is provided with the isolation mechanism 5. When it is dry season, the water flowing into the combined sewer inlet pipe 3 is mainly domestic sewage, the water inflow of the combined sewer inlet pipe 3 is small, the impact force of the sewage cannot open the isolation mechanism 5, and the sewage in the dry season is less mixed with garbage, and the sewage can be directly discharged into the sewage well 1 through the dry season water inlet pipe 31.

[0040] Specifically, the isolation mechanism 5 includes an isolation plate 51 hinged with the outlet of the rain season water inlet pipe 32, side edges of the isolation plate 51 are connected with side walls of the outlet of the rain season water inlet pipe 32 through telescopic springs 52 and telescopic guide columns 53, the telescopic springs 52 are located outside the telescopic guide columns 53, and the isolation plate 51 can control the opening or closing of the outlet of the rain season water inlet pipe 32 through the telescopic springs 52 and the telescopic guide columns 53.

[0041] When heavy rain occurs in the rainy season, the inflow of the combined inlet pipe 3 is large, and a large amount of rainwater and sewage will impact the isolation plate 51. After being impacted, the isolation plate 51 moves, and the extension spring 52 and the extension guide column 53 are elongated due to the pressure. At this time, the isolation plate 51 is away from the output end of the rainy season inlet pipe and no longer seals the output end of the rainy season inlet pipe. The rainwater and sewage will first pass through the isolation mechanism 5 for filtration and then enter the sewage chamber 23, and then be discharged to the sewage treatment plant through the flow limiting hole 27 for treatment.

[0042] When the rainwater and sewage in the sewage chamber 23 are excessive, the rainwater and sewage will backflow and impact the isolation plate 51. At this time, the isolation plate 51 is always in close contact with the output end of the rainy season inlet pipe 32, so that the backflow of rainwater and sewage cannot overflow through the output end of the rainy season inlet pipe 32. The one-way flow of rainwater and sewage can be achieved, avoiding the overflow of rainwater and sewage to the outside natural water body, so that the interception effect is good, avoiding the overflow pollution of rainwater and sewage, and avoiding the pollution of natural water bodies.

[0043] Specifically, the sewage chamber 23 is provided with a guide rail 41, and the filter mechanism 4 is provided with a sliding block 42 that can be clamped into the guide rail 41 and slide along the setting direction of the guide rail 41. The guide rail 41 is located above the rainy season inlet pipe 32, and a lifting ring is arranged on the top of the filter mechanism 4. The filter mechanism 4 is connected with the chain through the lifting ring. By pulling the chain, the filter mechanism 4 can be displaced upward along the guide rail 41 through the sliding block 42. When the filter mechanism 4 is displaced, the guide rail 41 plays a guiding role, making the displacement of the filter mechanism 4 more smooth and stable.

[0044] In this embodiment, when the filter mechanism 4 accumulates too much impurities, the maintenance personnel can open the movable cover plate 13 on a sunny day to lift the entire filter mechanism 4, which can clean the filtered impurities in time, avoid the phenomenon of blockage, and ensure the continuous drainage performance.

[0045] Specifically, the filter mechanism 4 includes a basket grid for intercepting floating sludge, garbage and other floating objects. The basket grid can be regularly cleaned and maintained, and the barrier effect of the basket grid can pretreat the sewage, thereby effectively reducing the floating pollutants.

[0046] In this embodiment, an anticorrosive coating can be coated on the grid plate of the basket grid. The anticorrosive coating can be epoxy resin. The addition of the epoxy resin anticorrosive coating can make the grid plate of the basket grid have good corrosion resistance and prolong the service life of the grid plate.

[0047] In this embodiment, the distance between the adjacent grid plates of the basket grid is 10-20 mm. The distance between the adjacent grid plates can also be adjusted according to the actual situation, which can intercept larger suspended or floating objects in the overflow sewage.

[0048] Specifically, the first ultrasonic liquid level meter 25 is used to detect the liquid level in the sewage chamber 23, and the second ultrasonic liquid level meter 26 is used to detect the liquid level in the interception chamber 24. The liquid levels in the sewage chamber 23 and the interception chamber 24 are detected and compared by the first ultrasonic liquid level meter 25 and the second ultrasonic liquid level meter 26. When the liquid level in the interception chamber 24 is greater than the liquid level in the sewage chamber 23, the rotary hydraulic weir gate 22 remains closed to prevent backflow.

[0049] Specifically, the interception chamber 24 is provided with a combined outflow pipe 6, and the input end of the combined outflow pipe 6 is connected with the interception chamber 24.

[0050] Specifically, the interception well 2 is provided with an interception inflow pipe 7, and the output end of the interception inflow pipe 7 extends into the sewage well 1. The sewage well 1 is provided with an interception outflow pipe 8, and the input end of the interception outflow pipe 8 is connected with the sewage well 1. In this embodiment, the interception inflow pipe 7 and the interception outflow pipe 8 are symmetrical. The interception inflow pipe functions to connect the sewage wells of adjacent interception devices, so that the sewage can flow along the pipeline. The interception outflow pipe functions to connect the sewage in the sewage well with the next sewage well or sewage treatment plant.

[0051] Specifically, the top of the interception well 2 and the sewage well 1 is provided with a solar panel, a rain gauge 11 and a control station 12.

[0052] In this embodiment, the solar panel can provide power for the rain gauge 11, the rotary hydraulic weir gate 22, the first ultrasonic liquid level meter 25, the second ultrasonic liquid level meter 26 and the flow limiting valve 28, so that the device is more low-carbon and environmentally friendly.

[0053] In this embodiment, the rain gauge 11 can accurately measure the precipitation in a region over a period of time. The rain gauge 11 can monitor ground precipitation data, so as to combine the data with the water level monitoring data of the first ultrasonic liquid level meter 25 and the second ultrasonic liquid level meter 26, and realize the opening and closing of the rotary hydraulic weir gate 22 through data analysis, further realize accurate diversion, and establish the data relationship between rainfall and water level. In this way, the rainfall stage can be accurately judged, the initial rainfall can be accurately intercepted, and the risk of sewage and initial rain overflowing into natural water bodies can be avoided.

[0054] In this embodiment, the protection level of the control station 12 is not less than IP55. The control station 12 is provided with a reserved remote control interface and communication equipment, which can measure and store related information such as liquid level and structural height of the rotary hydraulic weir gate 22 in real time.

[0055] In the embodiment, the rotary hydraulic weir gate 22 can control the opening and closing of the sewage chamber 23 and the interception chamber 24 according to the situation, the rotary hydraulic weir gate 22 is closed and the flow limiting hole 27 is opened in the early stage of rainfall, the initial rainwater can be sent to the sewage treatment plant for treatment, the rotary hydraulic weir gate 22 is opened and the flow limiting hole 27 is closed in the middle and late stage of rainfall, the unpolluted rainwater in the middle and late stage of rainfall is sent to the rainwater collection and utilization system through the combined outflow pipe 6, the problem of the initial rainwater being seriously polluted can be solved, and the initial rainwater and sewage can be intercepted.

[0056] Specifically, the sewage well 1, the sewage chamber 23 and the interception chamber 24 are each provided with a movable cover plate 13, a maintenance hole is arranged below the movable cover plate 13, the movable cover plate 13 can be manually lifted, maintenance personnel can conveniently maintain and repair the inside of the sewage well 1, the sewage chamber 23 and the interception chamber 24, and a fall-preventing net is arranged at the bottom of the movable cover plate 13, the arrangement of the fall-preventing net can prevent the movable cover plate 13 from being lost or play a temporary protection role when the movable cover plate 13 is damaged, and prevent pedestrians or maintenance personnel from falling into the sewage well 1 or the interception well 2 and being injured.

[0057] In the embodiment, an exhaust hole can be arranged on the movable cover plate 13 as required, the arrangement of the exhaust hole is used for diffusing toxic gas and odor gas in the sewage well 1, the sewage chamber 23 and the interception chamber 24, and preventing the maintenance personnel from being poisoned when entering the inside of the sewage well 1, the sewage chamber 23 and the interception chamber 24 for maintenance and repair.

[0058] In the embodiment, a gas filtering device can be arranged on the exhaust hole as required, to avoid that the toxic gas or odor gas is directly discharged into the air to cause air pollution.

[0059] Specifically, the sewage well 1, the sewage chamber 23 and the interception chamber 24 are each provided with a pedal 14, the pedal 14 is a telescopic pedal 14, which facilitates maintenance personnel to enter the sewage well 1, the sewage chamber 23 and the interception chamber 24 for repair and sludge cleaning.

[0060] Working principle: in different stages of rainy days, the sewage treatment and storage operation mode of the urban sewage pipe network low-carbon intelligent water interception device is as follows:

[0061] In the dry season sunny stage: the rotary hydraulic weir gate 22 and the flow limiting hole 27 are closed, since the garbage mixed in the sewage in the dry season is less, the water inflow of the combined inflow pipe 3 is mainly domestic sewage, the water inflow of the combined inflow pipe 3 is small, the sewage impact force cannot open the isolation mechanism 5, and the sewage is directly discharged into the sewage well 1 through the dry season inflow pipe 31 and then discharged to the sewage treatment plant for treatment.

[0062] In the early stage of the rainy season: the rotating liquid weir gate 22 is closed, the flow limiting hole 27 is opened, because the early rain dissolves a large amount of acidic gas, automobile exhaust, factory exhaust and other polluting gases in the air, and after falling to the ground, because of the scouring of the roof, road and the like, the early rain contains a large amount of pollutants, the combined inflow pipe 3 has a large amount of inflow, a large amount of rainwater will impact and open the isolation mechanism 5, and the rainwater will first pass through the isolation mechanism 5 into the filter mechanism 4 in the sewage chamber 23 to perform primary filtration, and then pass through the flow limiting hole 27 into the sewage chamber 23 and be discharged to the sewage treatment plant for treatment.

[0063] In the middle and late stage of the rainy season: the rotating liquid weir gate 22 is opened, the flow limiting hole 27 is closed, because of the scouring of the rain in the early stage, with the extension of the rainfall duration and the increase of the rainfall, a large amount of pollutants and floating matter has been washed away, so when the rainfall increases in the middle and late stage of the rainy season, a large amount of rainwater enters the combined inflow pipe 3 and will impact and open the isolation mechanism 5, and the rainwater will directly pass through the weir wall 21 and pass through the combined outflow pipe 6 to directly discharge the rainwater into the river or lake, reduce the treatment pressure of the sewage treatment plant, and realize effective rainwater and sewage separation.

[0064] In the blowdown stage: when the rain stops, the floating matter such as scum and garbage will be intercepted in the filter mechanism 4, the maintenance personnel can open the movable cover plate 13 to lift the entire filter mechanism 4, and clean the impurities in the filter mechanism 4, so that the phenomenon of blockage can be avoided, and the continuous drainage performance is ensured.

[0065] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A low-carbon intelligent water interception device for a municipal sewage network, comprising an interception well (2), characterized in that: A sewage well (1) is provided on one side of the intercepting well (2), a weir wall (21) is provided in the intercepting well (2), a rotary hydraulic weir gate (22) is provided on the weir wall (21), the weir wall (21) and the rotary hydraulic weir gate (22) divide the interior of the intercepting well (2) into a sewage chamber (23) and an intercepting chamber (24), a first ultrasonic level sensor (25) is provided in the sewage chamber (23), a second ultrasonic level sensor (26) is provided in the intercepting chamber (24), and a filter is provided in the sewage chamber (23) corresponding to the output end of the combined inflow pipe (3). The sewage discharge chamber (23) is provided with a flow limiting hole (27) connected to the sewage well (1), and a flow limiting valve (28) is provided at the flow limiting hole (27). The combined water inlet pipe (3) is provided with a dry season water inlet pipe (31) connected to the sewage well (1) and a rainy season water inlet pipe (32) connected to the sewage discharge chamber (23) of the intercepting well (2). The output end of the rainy season water inlet pipe (32) is provided with an isolation mechanism (5). The intercepting chamber (24) is provided with a combined water outlet pipe (6), and the input end of the combined water outlet pipe (6) is connected to the intercepting chamber (24).

2. A low-carbon intelligent water interception device for urban sewage pipe network according to claim 1, characterized in that: The isolation mechanism (5) comprises an isolation plate (51) hinged to the output end of the rainy season water inlet pipe (32); the side of the isolation plate (51) is connected to the side wall of the output end of the rainy season water inlet pipe (32) via a telescopic spring (52) and a telescopic guide column (53); the isolation plate (51) can control the opening or closing of the output end of the rainy season water inlet pipe (32) via the telescopic spring (52) and the telescopic guide column (53).

3. The low-carbon intelligent water interception device for urban sewage pipe network according to claim 1 is characterized by: A guide rail (41) is provided in the sewage discharge chamber (23), and the guide rail (41) is arranged along the height direction of the sewage discharge chamber (23). A slider (42) is provided on the filter mechanism (4) and can be inserted into the guide rail (41) and slide along the direction in which the guide rail (41) is arranged. The filter mechanism (4) includes a basket grille.

4. The low-carbon intelligent water interception device for urban sewage pipe network according to claim 3 is characterized by: A hanging ring is provided on the top of the filtering mechanism (4), and the filtering mechanism (4) is connected to a chain via the hanging ring.

5. The low-carbon intelligent water interception device for urban sewage pipe network according to claim 1 is characterized by: An intercepting inlet pipe (7) is provided in the intercepting well (2), and the output end of the intercepting inlet pipe (7) extends into the sewage well (1). An intercepting outlet pipe (8) is provided on the sewage well (1), and the input end of the intercepting outlet pipe (8) is connected to the sewage well (1).

6. The low-carbon intelligent water interception device for urban sewage pipe network according to claim 1, characterized in that: A solar panel (15), a rain gauge (11) and a control station (12) are provided on the top of the intercepting well (2) and the sewage well (1).

7. The low-carbon intelligent water interception device for urban sewage pipe network according to claim 1, characterized in that: The tops of the sewage well (1), the sewage discharge chamber (23) and the intercepting chamber (24) are all provided with movable covers (13), and the bottom of the movable cover (13) is provided with an anti-falling net.

8. The low-carbon intelligent water interception device for urban sewage pipe network according to claim 7, characterized in that: An inspection hole is provided below the movable cover plate (13).

9. The low-carbon intelligent water interception device for urban sewage pipe network according to claim 7, characterized in that: An exhaust hole is provided on the movable cover plate (13), and a gas filtering device is provided on the exhaust hole.

10. The low-carbon intelligent water interception device for urban sewage pipe network according to claim 1, characterized in that: Pedals (14) are provided inside the sewage well (1), the sewage discharge chamber (23) and the interception chamber (24).

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