A smart urban sewage discharge system

Abstract

This invention discloses a smart urban sewage discharge system, including a sewage discharge terminal, a sewage branch pipe, a manifold branch pipe, and a manifold main pipe. One end of the sewage discharge terminal is connected to the sewage branch pipe, and the other end of the sewage branch pipe is connected to the manifold branch pipe, which in turn is connected to the manifold main pipe. The sewage discharge terminal includes a pretreatment device for solid-liquid separation of the sewage. The device in this invention effectively separates solids and liquids in the sewage. The cutting device cuts solid impurities, preventing them from clogging the pipes. Furthermore, it eliminates the need for separate treatment of the separated solid impurities, effectively saving processing time and improving treatment efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of drainage, and particularly relates to a city intelligent sewage drainage system. BACKGROUND

[0002] City sewage is mainly composed of domestic sewage. A traditional city sewage drainage method is to set a lifting pump at a low-lying place, connect a gravity flow concrete pipeline to a sewage treatment plant for treatment. This method has a large sewage discharge pipe, large engineering quantity, high construction difficulty, and is prone to rainwater and sewage mixing, which aggravates the burden of the sewage treatment plant.

[0003] In the prior art, for example, the technical scheme disclosed in the application with the application number of “CN201810587363.8” and the title of “A city sewage purification device” is as follows: “A city sewage purification device, comprising a settling tank, a support frame is fixedly connected to the bottom of the settling tank, a water inlet pipe is communicated with the top of the settling tank, a motor is fixedly installed on the top of the settling tank, an output shaft of the motor is fixedly connected with a rotating shaft, a stirring blade is sleeved on the surface of the rotating shaft, a material blocking sieve plate is fixedly connected to the inner wall of the settling tank below the rotating shaft, an inclined sieve plate is fixedly connected to the inner wall of the settling tank, and a discharge port is fixedly installed at the bottom of the settling tank.” In this technical scheme, solid impurities in sewage need to be crushed. Although this treatment method can treat some solid impurities (such as soil and excrement), it cannot treat another type of solid impurities (for example, plastic bags and ropes), which can easily cause pipe blockage when discharged through a pipeline.

[0004] In the prior art, for example, the technical scheme disclosed in the application with the application number of “CN202111115661.5” and the title of “A high-efficiency city sewage solid-liquid separation device” is as follows: “A high-efficiency city sewage solid-liquid separation device, which improves the solid-liquid separation effect by improving the existing technology of the grid, and separates the sewage by setting double-layer filter plates. The upper filter plate is used to filter out large impurities such as plastic bags and ropes, and the lower filter plate is used to filter out small impurities such as small stones and most of the silt. A partition plate is arranged to store sewage and sludge.” In this technical scheme, although the solid impurities in the sewage are filtered and separated, manual treatment is still required after the filtration and separation, which increases the treatment process and makes the treatment more complex. SUMMARY

[0005] The present application aims to provide an urban intelligent sewage discharge system to solve the problems of the prior art that some solid impurities (for example, plastic bags, ropes) cannot be treated, which easily causes pipe blockage when being discharged through the pipe, and that the solid impurities in the sewage need to be manually treated after being filtered and separated, resulting in more treatment procedures and more complex treatment.

[0006] To solve the above technical problems, the technical solution adopted by the present application is:

[0007] An urban intelligent sewage discharge system, comprising a sewage discharge terminal, a sewage discharge branch pipe, a flow collection branch pipe and a flow collection main pipe; wherein the sewage discharge terminal is connected with one end of the sewage discharge branch pipe, the other end of the sewage discharge branch pipe is connected with the flow collection branch pipe, and the flow collection branch pipe is connected with the flow collection main pipe, through which the sewage is discharged into a sewage treatment plant;

[0008] The sewage discharge terminal comprises a sewage discharge pipe, a sewage pool, a lifting pump and a pretreatment device; the sewage discharge pipe is connected with the sewage pool for discharging sewage into the sewage pool; a lifting pipe is arranged in the sewage pool, one end of the lifting pipe is connected with the lifting pump, and the other end of the lifting pump is connected with the pretreatment device through a connecting pipe; the pretreatment device is used for solid-liquid separation treatment of the sewage; a liquid level sensor is arranged in the sewage pool; a pressure gauge is arranged on the sewage discharge branch pipe; wherein the liquid level sensor is electrically connected with the control lifting pump; the pressure gauge is electrically connected with the lifting pump, and is used for detecting the pressure in the sewage discharge branch pipe to determine whether the sewage discharge branch pipe is blocked;

[0009] The pretreatment device comprises a sewage pipe, a treatment pipe, a solid waste pipe and a separation device; wherein the upper end of the sewage pipe is connected with the connecting pipe, and the lower end of the sewage pipe is connected with the sewage discharge branch pipe; the two ends of the solid waste pipe are respectively connected with the sewage pipe and the treatment pipe; the separation device is arranged in the solid waste pipe; the separation device is used for separating the solid in the sewage; a cutting device is further arranged in the treatment pipe, and is used for cutting the solid impurities discharged into the treatment pipe.

[0010] According to the above technical solution, the separation device comprises a shell, a through hole is arranged on the side wall of the shell, and the through hole is used for filtering the sewage; a rotating shaft is further arranged in the shell, and the rotating shaft is rotatably connected with the shell; a transmission blade is fixed on the rotating shaft, and the separation device transmits the filtered solid impurities to the treatment pipe through the transmission blade.

[0011] According to the above technical solution, an inlet pipe and an outlet pipe are arranged at the two ends of the shell, wherein the upper end of the inlet pipe is arranged in the sewage pipe, and the lower end of the inlet pipe is communicated with the shell; one end of the outlet pipe is connected with the shell, and the other end of the outlet pipe extends into the treatment pipe and is communicated with the treatment pipe through an impurity outlet.

[0012] According to the above technical solution, an impeller is installed below the inlet pipe. The impeller is fixedly mounted on the rotating shaft and is used to drive the rotating shaft to rotate.

[0013] According to the above technical solution, the outlet pipe includes a movable plate, a mounting plate, and an impurity outlet; wherein, the movable plate is slidably disposed inside the outlet pipe, a rotating shaft passes through the movable plate and is connected to the mounting plate, a spring is disposed between the mounting plate and the movable plate, the spring is sleeved on the rotating shaft, and the impurity outlet is connected to the outlet pipe by the movement of the movable plate.

[0014] A collection pipe is installed below the outlet pipe. The upper end of the collection pipe is connected to the solid waste pipe, and the lower end of the collection pipe is connected to the sewage branch pipe.

[0015] According to the above technical solution, a guide plate is provided at the upper end of the collection pipe, and a guide hole is provided on the guide plate, and the guide plate is inclined downward.

[0016] According to the above technical solution, an air compressor is also installed on the sewage branch pipe, which is used to inject compressed air into the sewage branch pipe.

[0017] According to the above technical solution, the cutting device includes a first rotating shaft and a second rotating shaft, a first blade is disposed on the first rotating shaft, and a second blade is disposed on the second rotating shaft, wherein the first blade and the second blade are arranged alternately.

[0018] The cutting device also includes a driving device, which is connected to the first rotating shaft; a first gear is provided at the end of the first rotating shaft, and a second gear is provided on the second rotating shaft, with the first gear and the second gear meshing.

[0019] According to the above technical solution, a one-way valve is also installed at the lower end of the treatment pipeline to prevent sewage backflow.

[0020] According to the above technical solution, the sewage branch pipe, the confluence branch pipe, and the confluence main pipe form a Z-shaped structure.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In this invention, sewage is collected through a sewage discharge terminal, sewage branch pipe, manifold branch pipe, and manifold main pipe to achieve unified sewage collection; a pretreatment device is used to set up sewage pipes, treatment pipes, solid waste pipes, and a separation device; the separation device separates the sewage into solid and liquid components, and the solid impurities are discharged into the treatment pipe through the solid waste pipe; the solid impurities are cut by a cutting device installed in the treatment pipe, and the cut solid impurities are discharged back into the sewage branch pipe and discharged together into the sewage treatment plant for treatment.

[0023] The device in this invention can effectively separate solids and liquids in wastewater. The cutting device cuts solid impurities, making it less likely for them to clog the pipes. Furthermore, there is no need to process the separated solid impurities separately, effectively saving processing time and improving processing efficiency. Attached Figure Description

[0024] Figure 1 This is a system flowchart of the present invention;

[0025] Figure 2 This is a schematic diagram of the sewage discharge terminal structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the pretreatment device structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the separation device of the present invention;

[0028] Figure 5 This is a schematic diagram of the cutting device structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the connection structure of the sewage branch pipe, the manifold branch pipe, and the manifold main pipe of the present invention;

[0030] Figure 7 This is a schematic diagram of the impeller mounting structure of the present invention;

[0031] Figure 8 This is one of the schematic diagrams of the separation device of the present invention;

[0032] Figure 9 This is the second schematic diagram of the separation device of the present invention;

[0033] Figure 10 This is a schematic diagram of the rotary wheel structure of the present invention.

[0034] Markings in the diagram: 100-Sewage discharge terminal, 200-Sewage branch pipe, 300-Combination branch pipe, 400-Combination main pipe, 500-Sewage pipe, 600-Sewage tank, 700-Lift pump, 800-Pretreatment device, 900-Lifting pipe, 110-Connecting pipe, 111-Sewage pipe, 112-Treatment pipe, 113-Solid waste pipe, 114-Separation device, 115-Cutting device, 116-Outer casing, 117-Through hole, 118-Rotating shaft, 119-Transmission blade, 120-Inlet pipe, 121-Outlet pipe 122-Impeller, 123-Modible plate, 124-Mounting plate, 125-Impurity outlet, 126-Collection pipe, 127-Guide hole, 128-Air compressor, 129-First shaft, 130-Second shaft, 131-Cylinder, 132-First channel, 133-Second channel, 134-Outlet, 135-First filter plate, 136-Second filter plate, 137-Guide rod, 138-Sliding rod, 139-Drive device, 140-Roller, 141-Mounting fixture, 142-Brush rod, 143-Hook. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] like Figure 1 As shown, an urban smart sewage discharge system includes a sewage discharge terminal 100, a sewage branch pipe 200, a confluence branch pipe 300, and a confluence main pipe 400; wherein, the sewage discharge terminal 100 is connected to one end of the sewage branch pipe 200, the other end of the sewage branch pipe 200 is connected to the confluence branch pipe 300, and the confluence branch pipe 300 is then connected to the confluence main pipe 400, through which sewage is discharged into a sewage treatment plant;

[0038] like Figure 2As shown, the sewage terminal 100 includes a sewage pipe 500, a sewage tank 600, a booster pump 700, and a pretreatment device 800. The sewage pipe 500 is connected to the sewage tank 600 and is used to discharge sewage into the sewage tank 600. A booster pipe 900 is installed inside the sewage tank 600, and one end of the booster pipe 900 is connected to one end of the booster pump 700. The other end of the booster pump 700 is connected to the pretreatment device 800 through a connecting pipe 110. The pretreatment device 800 is used to perform solid-liquid separation treatment on the sewage. A liquid level sensor is installed inside the sewage tank 600. A pressure gauge is installed on the sewage branch pipe 200. The liquid level sensor is electrically connected to the booster pump 700. The pressure gauge is electrically connected to the booster pump 700 and is used to detect the pressure inside the sewage branch pipe 200 to determine whether the sewage branch pipe 200 is blocked.

[0039] like Figure 3 As shown, the pretreatment device 800 includes a sewage pipe 111, a treatment pipe 112, a solid waste pipe 113, and a separation device 114. The upper end of the sewage pipe 111 is connected to the connecting pipe 110, and the lower end of the sewage pipe 111 is connected to the sewage branch pipe 200. The two ends of the solid waste pipe 113 are connected to the sewage pipe 111 and the treatment pipe 112, respectively. The separation device 114 is installed inside the solid waste pipe 113 and is used to separate solids from the sewage. A cutting device 115 is also installed inside the treatment pipe 112 and is used to cut solid impurities discharged into the treatment pipe 112.

[0040] The sewage terminal with this structure can detect the liquid level of the sewage tank 600 through a liquid level sensor. When the liquid level is too low, the liquid level sensor controls the lift pump 700 to stop running.

[0041] The pressure inside the sewage branch pipe 200 is detected by a pressure gauge. If the pressure is too high, it is determined that the pipe is blocked, thereby controlling the booster pump 700 to stop operating; thus realizing intelligent control of sewage discharge.

[0042] In this invention, sewage is collected through a sewage terminal 100, sewage branch pipe 200, confluence branch pipe 300, and confluence main pipe 400 to achieve unified sewage collection. A pretreatment device 800 includes a sewage pipe 111, a treatment pipe 112, a solid waste pipe 113, and a separation device 114. The separation device 114 separates the sewage into solid and liquid components, and the solid impurities are discharged into the treatment pipe 112 through the solid waste pipe 113. A cutting device 115 inside the treatment pipe 112 cuts the solid impurities, and the cut solid impurities are then returned to the sewage branch pipe 200 and discharged together into the sewage treatment plant for further treatment.

[0043] The device in this invention can effectively separate solids and liquids in wastewater. The cutting device 115 cuts solid impurities, making it less likely for solid impurities to clog the pipes. Furthermore, there is no need to process the separated solid impurities separately, effectively saving processing time and improving processing efficiency.

[0044] Example 2

[0045] This embodiment is a further refinement of Embodiment 1.

[0046] like Figure 4 As shown, the separation device 114 includes a housing 116, and a through hole 117 is provided on the side wall of the housing 116 for filtering sewage; a rotating shaft 118 is also provided inside the housing 116, and the rotating shaft 118 is rotatably connected to the housing 116; a conveying blade 119 is fixed on the rotating shaft 118, and the separation device 114 conveys the filtered solid impurities to the processing pipe 112 through the conveying blade 119;

[0047] An impeller 122 is provided below the inlet pipe 120. The impeller 122 is fixedly mounted on the rotating shaft 118 and is used to drive the rotating shaft 118 to rotate.

[0048] Specifically, when sewage is discharged from sewage tank 600 into sewage pipe 111, the impact of sewage on impeller 122 causes impeller 122 to rotate, thereby causing rotating shaft 118 and transmission blades 119 to rotate, thus transporting solid impurities to outlet pipe 121, while sewage is discharged into sewage branch pipe 200 through through hole 117.

[0049] By providing an impeller 122 at the end of the rotating shaft 118, and by using sewage to impact the impeller 122, the impeller 122, the rotating shaft 118, and the conveying blades 119 are driven to rotate, thus completing the conveying of solid impurities; no additional drive mechanism is needed to drive the rotating shaft 118 to rotate, thereby saving energy.

[0050] like Figure 4 As shown, an inlet pipe 120 and an outlet pipe 121 are respectively provided at both ends of the outer casing 116. The upper end of the inlet pipe 120 is located inside the sewage pipe 111, and the lower end of the inlet pipe 120 is connected to the outer casing 116. One end of the outlet pipe 121 is connected to the outer casing 116, and the other end of the outlet pipe 121 extends into the interior of the treatment pipe 112 and is connected to the treatment pipe 112 through the impurity outlet 125.

[0051] Specifically, the inlet pipe 120 is installed inside the sewage pipe 111, so that sewage can be directly discharged into the interior of the outer shell 116, thereby completing the solid-liquid separation of sewage and improving the solid-liquid separation effect.

[0052] The outlet pipe 121 includes a movable plate 123, a mounting plate 124, and an impurity outlet 125. The movable plate 123 is slidably disposed inside the outlet pipe 121. A rotating shaft 118 passes through the movable plate 123 and is connected to the mounting plate 124. A spring is provided between the mounting plate 124 and the movable plate 123. The spring is sleeved on the rotating shaft 118. By pushing the movable plate 123 to move, the impurity outlet 125 is connected to the outlet pipe 121.

[0053] Below the outlet pipe 121, there is also a collection pipe 126. The upper end of the collection pipe 126 is connected to the solid waste pipe 113, and the lower end of the collection pipe 126 is connected to the sewage branch pipe 200.

[0054] Specifically, an impurity outlet 125 is provided at the end of the outlet pipe 121, connecting the outlet pipe 121 to the treatment pipe 112. A movable plate 123 and a mounting plate 124 are provided at the end of the outlet pipe 121, with a spring between the movable plate 123 and the mounting plate 124. When solid impurities accumulate in the outlet pipe 121, the amount of solid impurities is insufficient to move the movable plate 123, causing the solid impurities to accumulate on the inner side of the movable plate 123. The water carried by the solid impurities flows into the collection pipe 126 through the through hole 117 and eventually into the manifold branch pipe 300.

[0055] By rotating the shaft 118 and the transmission blades 119, solid impurities are continuously accumulated on the inner side of the movable plate 123. The transmission blades 119 push the solid impurities to continuously squeeze them against the movable plate 123, thereby squeezing out the water from the solid impurities and facilitating the cutting device 115 to cut the solid impurities.

[0056] When a certain amount of solid impurities accumulate, they will push the movable plate 123 to move, compress the spring, and be discharged from the impurity outlet 125.

[0057] like Figure 2 As shown, a guide plate is provided at the upper end of the collection pipe 126, and a guide hole 127 is provided on the guide plate, and the guide plate is inclined downward.

[0058] Specifically, the wastewater is guided into the solid waste pipe 113 by the set guide plate, so that the wastewater can enter the sewage branch pipe 200 and finally complete the confluence.

[0059] An air compressor 128 is also installed on the sewage branch pipe 200. The air compressor 128 is used to inject compressed air into the sewage branch pipe 200.

[0060] Specifically, compressed air is injected into the sewage branch pipe 200 by the air compressor 128, so that the sewage is discharged in the pipe in the form of gas-liquid two-phase flow, preventing the sewage branch pipe 200, the manifold branch pipe 300 and the manifold main pipe 400 from becoming blocked.

[0061] like Figure 5 As shown, the cutting device 115 includes a first rotating shaft 129 and a second rotating shaft 130. A first blade is disposed on the first rotating shaft 129 and a second blade is disposed on the second rotating shaft 130, wherein the first blade and the second blade are alternately arranged. The cutting device 115 also includes a driving device connected to the first rotating shaft 129. A first gear is disposed at the end of the first rotating shaft 129 and a second gear is disposed on the second rotating shaft 130, wherein the first gear and the second gear mesh.

[0062] Specifically, the meshing of the first and second gears causes the first rotating shaft 129 and the second rotating shaft 130 to rotate relative to each other; and, since the first and second blades are staggered and the first rotating shaft 129 and the second rotating shaft 130 rotate relative to each other, the first and second blades also rotate relative to each other, thereby making the cutting of solid impurities more efficient.

[0063] A check valve is also installed at the lower end of the treatment pipe 112 to prevent sewage backflow.

[0064] Furthermore, such as Figure 4 As shown, the left end of the solid waste pipe 113 is smaller and the right end is larger, thereby increasing the pressure at the left end of the solid waste pipe 113 and facilitating the discharge of solid impurities from the left end of the solid waste pipe 113.

[0065] Furthermore, the left end of the solid waste pipe 113 is inclined downwards (i.e., the end facing the treatment pipe 112 is inclined downwards), and the separation device 114 installed inside the solid waste pipe 113 is also inclined. This arrangement allows solid impurities to flow into the treatment pipe 112 by gravity. Under the action of gravity, the movable plate 123 can also be moved.

[0066] The working principle of this invention is as follows: In use, sewage is first collected in sewage tank 600, and then pumped into pretreatment device 800 by lift pump 700 to perform solid-liquid separation. The sewage that has completed solid-liquid separation is discharged from sewage pipe 111 into sewage branch pipe 200, while solid impurities are discharged into treatment pipe 112 through solid waste pipe 113. The solid impurities are then cut by cutting device 115 in treatment pipe 112. Finally, the cut solid impurities are discharged into sewage branch pipe 200 and discharged into sewage treatment plant together with sewage for treatment.

[0067] Example 3

[0068] This embodiment is a further refinement of Embodiment Two. The sewage branch pipe 200, the manifold branch pipe 300, and the manifold main pipe 400 form a Z-shaped structure, as shown below. Figure 6 As shown.

[0069] The sewage branch pipe 200, the manifold branch pipe 300, and the manifold main pipe 400 are sloped according to their pipe diameters (i.e., the horizontal height of the sewage branch pipe 200, the horizontal height of the manifold branch pipe 300, and the horizontal height of the manifold main pipe 400 decrease sequentially), forming a Z-shaped structure. This means that under the action of gravity, sewage in the pipes can also flow to the lowest point, and the difference between the lowest and highest points is about 0.5 meters.

[0070] As is well known, when sewage and compressed air flow simultaneously in a pipe at relatively low velocities, the compressed air and sewage can mix thoroughly in a vertical pipe, resulting in a gas-liquid two-phase flow in the form of intermittent flow, annular flow, or bubble flow. In a horizontal pipe, according to previous research, the gravity of the gas-liquid two-phase flow, the friction between the gas-liquid two-phase flow and the pipe wall, and the resistance of the pipe fittings all contribute to a gravitational pressure drop {=[ρ G α+(1-α)ρ L ]gsinβ}, frictional pressure drop Local resistance pressure drop of pipe fittings This causes the gas-liquid two-phase flow to gradually evolve into a stratified flow, resulting in a pressure drop in the stratified wastewater flow. The design of low and high points can significantly increase the gas-liquid two-phase flow, and the wastewater can be discharged again in the form of intermittent flow, annular flow or bubble flow in the form of gas-liquid two-phase flow.

[0071] As is well known, from a macroscopic perspective, during the discharge of sewage in a horizontal pipeline, the pressure drop due to friction is approximately 0.15 MPa / km. This means that a 700-type booster pump with an outlet pressure of 0.6 MPa would have a horizontal discharge distance of 4 km. Similarly, compressed air experiences a pressure drop of approximately 0.02 MPa / km due to friction within the pipeline. This means that compressed air with a pressure of 0.8 MPa would have a horizontal transmission distance of 40 km. When compressed air and sewage are mixed at a volume ratio of 2:1, the weight of the same volume of gas-liquid mixture becomes 1 / 3. This means that a 700-type booster pump with an outlet pressure of 0.6 MPa would have a horizontal discharge distance of 12 km. Therefore, gas-liquid two-phase flow is more suitable for long-distance transportation.

[0072] Example 4

[0073] like Figure 7As shown, an impeller 122 is provided at the end of the rotating shaft 118. The impeller 122 is located below the inlet pipe 120. Since the upper end of the inlet pipe 120 is connected to the connecting pipe 110, sewage is introduced into the inlet pipe 120. The sewage impacts the impeller 122, causing the impeller 122 to rotate. The impeller 122 then drives the rotating shaft 118 to rotate, pushing solid impurities to the left.

[0074] Because wastewater contains solid impurities, directly introducing wastewater into the inlet pipe 120 could cause these impurities to affect the impeller 122, preventing it from rotating. Therefore, this embodiment also provides a separation device to separate the solids and liquids.

[0075] The separation device is installed at the upper end of the inlet pipe 120, and the two ends of the separation device are connected to the inlet pipe 120 and the connecting pipe 110, respectively.

[0076] like Figure 8 and Figure 9 As shown, the separation device includes a cylindrical body 131. Inside the cylindrical body 131, a first channel 132 and a second channel 133 are provided, separated by a partition. An opening is provided at the upper end of the partition, connecting the first channel 132 and the second channel 133. Inside the first channel 132, a water outlet 134 is provided, with the outlet end of the water outlet 134 being smaller than the inlet end. The water outlet 134 is located above the impeller.

[0077] A filter assembly is provided at the upper end of the first channel 132; the filter assembly includes a first filter plate 135 and a second filter plate 136; wherein, one end of the first filter plate 135 is rotatably connected to the inner wall of the first channel 132, and the other end of the first filter plate 135 is rotatably connected to one end of the second filter plate 136; the other end of the second filter plate 136 is slidably connected to the inner wall of the cylinder 131.

[0078] A guide rod 137 is provided on the inner wall of the cylinder 131, and a sliding rod 138 is provided on the guide rod 137. The sliding rod 138 is sleeved on the outside of the guide rod 137. The end of the second filter plate 136 is rotatably disposed at the lower end of the sliding rod 138. A driving device 139 is also provided below the sliding rod 138. The driving device 139 is used to push the sliding rod 138 to slide on the guide rod 137.

[0079] Furthermore, the drive unit 139 adopts one of a hydraulic cylinder, a pneumatic cylinder, or an electric telescopic rod.

[0080] Furthermore, the first filter plate 135 and the second filter plate 136 are connected by a torsion spring.

[0081] likeFigure 8 As shown, when there is no external force, the first filter plate 135 and the second filter plate 136 are on the same plane, and the first filter plate 135 and the second filter plate 136 are inclined downward toward the opening of the second channel 133, so that solid impurities on the first filter plate 135 and the second filter plate 136 can slide into the second channel 133.

[0082] like Figure 9 As shown, when sewage enters the separation device through the connecting pipe 110, the sewage and solid impurities impact the first filter plate 135 and the second filter plate 136, causing the first filter plate 135 and the second filter plate 136 to form a certain angle (e.g., 30°), reducing the filtration component's orientation to rainwater, thereby reducing the possibility of rainwater entering the second channel 133.

[0083] Under the impact of sewage, the second filter plate 136 drives the sliding rod 138 to move downward. The sensor detects that when the sliding rod 138 descends to a certain height, the drive device 139 located below the sliding rod 138 pushes the sliding rod 138 upward, thereby causing the sliding rod 138 to drive the second filter plate 136 upward. Under the action of the sliding rod 138 and the torsion spring, the first filter plate 135 and the second filter plate 136 vibrate, bringing the first filter plate 135 and the second filter plate 136 to the same plane. This causes solid impurities on the first filter plate 135 and the second filter plate 136 to be bounced up and fall into the first channel 132.

[0084] like Figure 10 As shown, a rotating wheel 140 is also provided inside the second pipe. A mounting clamp 141 is provided on the rotating wheel 140. A brush rod 142 is slidably mounted on the mounting clamp 141. A hook 143 is provided on the brush rod 142.

[0085] When the rotating wheel 140 rotates clockwise under the drive of the motor (the motor is located outside the second channel 133), the centrifugal force and gravity of the rotating wheel 140 are used to throw the brush rod 142 out, so that the hooks 143 provided on the brush rod 142 can extend further. The hooks 143 extend through the opening into the interior of the first channel 132, pulling the solid impurities accumulated on the first filter plate 135 and the second filter plate 136 into the interior of the second channel 133.

[0086] Furthermore, the brush bar 142 is made of shape memory metal plate, such as nickel-titanium alloy.

[0087] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0088] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart urban sewage discharge system, characterized in that: The sewage terminal (100), the sewage branch pipe (200), the confluence branch pipe (300) and the confluence main pipe (400) are included, wherein the sewage terminal (100) is connected with one end of the sewage branch pipe (200), the other end of the sewage branch pipe (200) is connected with the confluence branch pipe (300), the confluence branch pipe (300) is connected with the confluence main pipe (400), and the sewage is discharged into the sewage treatment plant through the confluence main pipe (400); The sewage terminal (100) includes a sewage pipeline (500), a sewage pool (600), a lifting pump (700) and a pretreatment device (800); the sewage pipeline (500) is connected with the sewage pool (600) and used for discharging sewage into the sewage pool (600); a lifting pipeline (900) is arranged in the sewage pool (600), one end of the lifting pipeline (900) is connected with the lifting pump (700), and the other end of the lifting pump (700) is connected with the pretreatment device (800) through a connecting pipeline (110); the pretreatment device (800) is used for solid-liquid separation treatment of sewage; a liquid level sensor is arranged in the sewage pool (600); a pressure gauge is arranged on the sewage branch pipe (200); wherein the liquid level sensor is electrically connected with the lifting pump (700); the pressure gauge is electrically connected with the lifting pump (700), and the pressure gauge is used for detecting the pressure in the sewage branch pipe (200) and judging whether the sewage branch pipe (200) is blocked; The pretreatment device (800) includes a sewage pipeline (111), a treatment pipeline (112), a solid waste pipeline (113) and a separation device (114); wherein the upper end of the sewage pipeline (111) is connected with the connecting pipeline (110), and the lower end of the sewage pipeline (111) is connected with the sewage branch pipe (200); the two ends of the solid waste pipeline (113) are connected with the sewage pipeline (111) and the treatment pipeline (112) respectively; the separation device (114) is arranged in the solid waste pipeline (113); the separation device (114) is used for separating the solid in the sewage; a cutting device (115) is further arranged in the treatment pipeline (112), and the cutting device (115) is used for cutting the solid impurities discharged into the treatment pipeline (112); The separation device (114) includes a shell (116), an inlet pipeline (120) and an outlet pipeline (121) are arranged at the two ends of the shell (116) respectively, an impeller (122) is arranged in the inlet pipeline (120), the impeller (122) is fixedly arranged on a rotating shaft (118), and the impeller (122) is used for driving the rotating shaft (118) to rotate; The outlet pipe (121) comprises a movable plate (123), a mounting plate (124) and an impurity outlet (125); the movable plate (123) is slidingly arranged in the outlet pipe (121), the rotating shaft (118) passes through the movable plate (123) and is connected with the mounting plate (124), a spring is arranged between the mounting plate (124) and the movable plate (123), the spring is sleeved on the rotating shaft (118), the impurity outlet (125) is communicated with the outlet pipe (121) by moving the movable plate (123); A collecting pipe (126) is further arranged below the outlet pipe (121), the upper end of the collecting pipe (126) is communicated with the solid waste pipe (113), and the lower end of the collecting pipe (126) is communicated with the sewage branch pipe (200); A through hole (117) is arranged on the side wall of the shell (116), the through hole (117) is used for filtering sewage; a rotating shaft (118) is further arranged in the shell (116), the rotating shaft (118) is rotatably connected with the shell (116); a transmission blade (119) is fixed on the rotating shaft (118), and the separation device (114) transmits the filtered solid impurities into the treatment pipe (112) through the transmission blade (119).

2. The urban intelligent sewage discharge system according to claim 1, characterized in that: The upper end of the inlet pipe (120) is arranged in the sewage pipe (111), and the lower end of the inlet pipe (120) is communicated with the shell (116); one end of the outlet pipe (121) is connected with the shell (116), and the other end of the outlet pipe (121) extends into the treatment pipe (112) and is communicated with the treatment pipe (112) through the impurity outlet (125).

3. The urban intelligent sewage discharge system according to claim 2, characterized in that: The upper end of the collecting pipe (126) is provided with a flow guide plate, the flow guide plate is provided with a flow guide hole (127), and the flow guide plate is arranged in a downward inclined manner.

4. The urban intelligent sewage discharge system according to claim 1, characterized in that: An air compressor (128) is further arranged on the sewage branch pipe (200), and the air compressor (128) is used for injecting compressed air into the sewage branch pipe (200).

5. The urban intelligent sewage discharge system according to claim 1, characterized in that: The cutting device (115) comprises a first rotating shaft (129) and a second rotating shaft (130), a first blade is arranged on the first rotating shaft (129), and a second blade is arranged on the second rotating shaft (130), wherein the first blade and the second blade are arranged in an interlaced manner. The cutting device (115) further comprises a driving device connected with the first rotating shaft (129); a first gear is arranged on the end of the first rotating shaft (129), a second gear is arranged on the second rotating shaft (130), and the first gear and the second gear are engaged.

6. The urban intelligent sewage discharge system according to claim 1, wherein: A one-way valve is further arranged at the lower end of the treatment pipe (112), and the one-way valve is used for preventing sewage from flowing back.

7. The urban intelligent sewage discharge system according to claim 1, wherein: The sewage branch pipe (200), the flow collecting branch pipe (300) and the flow collecting main pipe (400) form a Z-shaped structure.

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