A distributed pipe network sewage system for a smart city and its design method

Abstract

The present invention relates to a distributed pipe network sewage system for a smart city and its design method, including: a sump well, on which a branch pipeline communicated therewith is provided; a filter plate, arranged in the sump well and used for filtering the collected sewage, and a plurality of filter openings are arranged on the filter plate; a scraping mechanism, arranged in the sump well, the scraping mechanism includes a power assembly and a scraping assembly, and the scraping assembly cooperates with a double-layer groove body arranged on the inner wall of the sump well to separate the scraping assembly from the filter plate when the scraping assembly is reset from the end of the stroke; a conduction assembly, a plurality of groups of the conduction assemblies are arranged along the length direction of the filter plate, and the conduction assembly is adapted to the scraping assembly to jack up the waste in the filter openings when the scraping assembly moves; a blanking assembly, arranged on one side of the sump well to filter the sewage and reduce the load of sewage treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, and particularly to a distributed pipe network sewage system for a smart city and its design method. Background Art

[0002] With the proposal of the concept of smart city, people increasingly pay attention to the improvement of the quality of life and the environment. In recent years, more and more people have flocked into cities, bringing challenges to many fields in the city. Taking the sewage system as an example, due to the increase in the number of people, the amount of sewage to be treated has also increased. With the deterioration of the ecological environment, the probability of adverse weather is getting higher and higher, and the duration is getting longer and longer. Although the traditional sewage system can meet the daily use, in extreme environments, it will be under an extremely high load.

[0003] Specifically, the existing sewage systems mostly have sufficient capacity to handle daily sewage discharge. However, when adverse weather occurs, such as long-term heavy rain, at this time, since rainwater can carry dead branches and leaves on the road surface, these dead branches and leaves will enter the sewage system, increasing the load on the sewage treatment equipment in the sewage system. Being in a high-load working state for a long time makes the sewage treatment equipment overwhelmed. In order to reduce the load on the sewage treatment equipment, it is necessary to perform a primary pretreatment on the rainwater. Summary of the Invention

[0004] The purpose of the present invention is to provide a distributed pipe network sewage system for a smart city and its design method to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A distributed pipe network sewage system for a smart city, comprising:

[0007] An inlet, a pipeline system, a sewage pumping station, a sewage treatment and utilization structure, and an outlet, which are connected in sequence.

[0008] The inlet includes:

[0009] A sump, on which a branch pipeline is provided and is in communication with it.

[0010] A filter plate, which is arranged in the sump and is used for filtering the collected sewage. A plurality of filter openings are provided on the filter plate.

[0011] A scraping mechanism is arranged in the water collection well and is used to scrape the waste on the filter plate. The scraping mechanism includes a power component and a scraping component. The power component can drive the scraping component to reciprocate along the length direction of the filter plate. The scraping component cooperates with a double-layer groove body arranged on the inner wall of the water collection well and is used to separate the scraping component from the filter plate when the scraping component is reset at the end of the stroke.

[0012] A conduction assembly, wherein a plurality of conduction assemblies are arranged along the length direction of the filter plate, and the conduction assemblies are adapted to the scraping assemblies, and are used to lift up the waste in the filter port when the scraping assemblies move;

[0013] The material discharge assembly is arranged at one side of the water collection well, and the material discharge assembly can move the waste out of the water collection well when the scraping assembly moves to the end of the stroke.

[0014] As a further solution of the present invention: the power assembly includes a light impeller arranged in the branch pipeline, the light impeller is coaxial with the branch pipeline, and the light impeller is connected to a transmission structure arranged in the water collection well;

[0015] A pulling rod is rotatably mounted on the transmission structure, and one end of the pulling rod away from the transmission structure is connected to the scraping assembly.

[0016] As a further solution of the present invention: the transmission structure comprises two driving wheels rotatably mounted on the inner wall of the water collection well, wherein a rotating shaft of one of the driving wheels is connected to the lightweight impeller, and a driving chain is sleeved between the two driving wheels;

[0017] The transmission structure also includes two guide rods symmetrically arranged in the water collection well, and a follower sleeve is slidably installed on the guide rod, and a follower is connected to the follower sleeve. The follower is rotatably connected to the pulling rod, and the follower is provided with a lag groove along its length direction. The slider rotatably installed on the drive chain can slide in the lag groove.

[0018] As a further solution of the present invention: the scraping assembly includes a sliding trough body symmetrically arranged on the inner walls on both sides of the water collection well, a connecting frame body slidably arranged in the sliding trough body and rotatably connected to the pulling rod, a scraping plate is sleeved in the connecting frame body, and the scraping plate and the connecting frame body are connected by an elastic structure.

[0019] As a further solution of the present invention: The elastic structure includes a first vertical rod installed on the inner wall of the connecting frame body. One end of the first vertical rod away from the connecting frame body can be inserted into the scraping plate, and a first spring is sleeved on the first vertical rod. One end of the first spring is connected to the scraping plate, and the other end is connected to the connecting frame body.

[0020] As a further solution of the present invention: The double-layer tank body includes a first horizontal tank body, an inclined tank body, a vertical tank body, and a second horizontal tank body provided on the inner wall of the sump. The first horizontal tank body and the second horizontal tank body are parallel to each other, and a reversing member is rotatably installed at the connection between the first horizontal tank body and the inclined tank body;

[0021] The first horizontal tank body, the inclined tank body, the vertical tank body, and the second horizontal tank body form a reversing tank, and a first pulley rotatably installed on the scraping plate can slide in the reversing tank.

[0022] As a further solution of the present invention: The conduction assembly includes a lifting plate arranged along the width direction of the filter plate. A vertical shaft coaxial with the filter hole is provided on the lifting plate, and the lifting plate is slidably connected to a second vertical rod provided on the filter plate. A second spring is sleeved on the second vertical rod. One end of the second spring is connected to the filter plate, and the other end is connected to the lifting plate;

[0023] On both sides of the lifting plate, inclined plates inclined upward are symmetrically provided, and the inclined plates are adapted to lifting rollers rotatably installed on the connecting frame body.

[0024] As a further solution of the present invention: The blanking assembly includes a waste box body provided on the side of the sump. The sump is connected and communicated with the waste box body through an inclined hopper;

[0025] The blanking assembly further includes a folding plate rotatably installed on the filter plate. The folding plate is connected to the filter plate through an elastic sheet. Two abutting rods are symmetrically provided on the folding plate, and the abutting rods are adapted to second pulleys provided on the connecting frame body, and are used to drive the folding plate to rotate when the connecting frame body moves to the end of the stroke.

[0026] A design method for the distributed pipe network sewage system described above includes the following steps:

[0027] Step 1: General layout design. Select a suitable route according to the requirements of municipal planning, the existing underground pipeline conditions in the block (including existing sewage pipelines, gas pipelines, cable channels, etc.), and the street area conditions in the block, and avoid deviating from the municipal planning or interfering with the existing underground pipelines;

[0028] Step 2: Plan the main and branch pipelines. Locate the pipelines according to the actual site conditions and complete the design of pipeline segments to reduce material waste during construction;

[0029] Step 3: Determine the design standards. Determine the average daily drainage volume according to the number of residents along the pipeline path, and combine with the historical maximum rainfall in the past 30 years to obtain the drainage volume under extreme conditions, so as to select the sewage pipeline with an appropriate pipe diameter;

[0030] Step 4: Conduct hydraulic calculations for the pipeline. Select control points according to the drainage volume and conduct hydraulic calculations section by section in sequence;

[0031] Step 5: Draw the plan view and longitudinal section of the pipeline system.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] Through the provided power assembly and scraping assembly, primary pre-filtration treatment of rainwater can be achieved under rainstorm conditions, avoiding the increase in the load of the equipment due to a large amount of waste carried by the rainwater entering the sewage treatment equipment. Moreover, the power for the movement of the scraping assembly is provided by rainwater pushing the lightweight impeller, without the need for an additional output device, reducing the use cost and operation and maintenance cost;

[0034] At the same time, the scraping assembly cooperates with the double-layer tank body to scrape the waste on the filter plate to improve the filtering effect of the filter plate. At the same time, during the reset process of the scraping plate, it will separate from the filter plate, increasing the water flow rate through the filter plate and avoiding the decrease in the water filtration volume of the filter plate caused by the scraping plate always blocking part of the filter openings during operation;

[0035] Through the provided conduction assembly, the blocked waste in the filter openings can be pushed out and scraped by the scraping plate, effectively avoiding the phenomenon that the scraping plate cannot scrape due to waste entering the interior of the filter openings, realizing the dredging of the filter openings and improving the filtering effect of the filter plate. At the same time, during the reverse movement of the scraping plate, the vertical shaft can also perform a dredging action and dredge the filter openings again, so that the waste can be removed in a short time after entering the filter openings, further improving the filtering effect of the filter plate;

[0036] Through the provided blanking assembly, the waste is removed from the sump, keeping the waste content in the sump low and avoiding the waste being washed away due to water flow impact. From another perspective, it also improves the filtering effect of the filter plate. Description of the Drawings

[0037] Figure 1 It is a schematic structural diagram of an embodiment of a distributed pipe network sewage system for a smart city;

[0038] Figure 2Schematic diagram of the internal structure of a sump well in an embodiment of a distributed pipe network sewage system for a smart city;

[0039] Figure 3 Schematic diagram of the internal structure of a sump well from another angle in an embodiment of a distributed pipe network sewage system for a smart city;

[0040] Figure 4 Schematic diagram of the structure of a power component in an embodiment of a distributed pipe network sewage system for a smart city;

[0041] Figure 5 Exploded view of the connection relationship between a slider and a follower in an embodiment of a distributed pipe network sewage system for a smart city;

[0042] Figure 6 Schematic diagram of the structure of a scraping component in an embodiment of a distributed pipe network sewage system for a smart city;

[0043] Figure 7 Schematic diagram of the structure of a conduction component in an embodiment of a distributed pipe network sewage system for a smart city;

[0044] Figure 8 For Figure 7 Enlarged schematic diagram of the structure at position A in;

[0045] Figure 9 Schematic diagram of the structure of a lifting plate, an inclined plate, a vertical shaft, a second vertical rod, and a second spring in an embodiment of a distributed pipe network sewage system for a smart city;

[0046] Figure 10 Partial schematic diagram of the structure of a feeding component in an embodiment of a distributed pipe network sewage system for a smart city;

[0047] Figure 11 Schematic diagram of the structure of a sliding groove body and a reversing groove in an embodiment of a distributed pipe network sewage system for a smart city;

[0048] Figure 12 For Figure 11 Enlarged schematic diagram of the structure at position B in;

[0049] In the figure: 1, catch basin; 2, branch pipeline; 3, lightweight impeller; 4, drive wheel; 5, drive chain; 6, slider; 7, follower; 8, follower sleeve; 9, guide rod; 10, pull rod; 11, connecting frame; 12, sliding chute; 13, scraping plate; 14, first vertical rod; 15, first spring; 16, first pulley; 17, reversing groove; 18, reversing member; 19, second pulley; 20, folding plate; 21, elastic sheet; 22, abutting rod; 23, filter plate; 24, lifting roller; 25, lifting plate; 26, inclined plate; 27, vertical shaft; 28, second vertical rod; 29, second spring; 30, waste box; 31, inclined hopper. Detailed implementation mode

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] In addition, the elements in the present invention are referred to as "fixed to" or "arranged on" another element, and it can be directly on another element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0052] Please refer to Figures 1 to 12 , in the embodiment of the present invention, a distributed pipe network sewage system for a smart city includes:

[0053] An inlet, a pipeline system, a sewage pumping station, sewage treatment and utilization structures, and an outlet, which are connected in sequence among the five.

[0054] The inlet includes: a catch basin 1, a filter plate 23, a scraping mechanism, a conduction assembly, and a blanking assembly.

[0055] A branch pipeline 2 is provided on the catch basin 1 and is in communication with it, and a cover plate is provided on the catch basin 1;

[0056] The filter plate 23 is arranged in the catch basin 1 and is used for filtering the collected sewage, and a plurality of filter openings are provided on the filter plate 23;

[0057] The scraping mechanism is arranged in the sump 1 and is used to scrape the waste on the filter plate 23. The scraping mechanism includes a power assembly and a scraping assembly. The power assembly can drive the scraping assembly to reciprocate along the length direction of the filter plate 23. The scraping assembly cooperates with a double-layer tank body arranged on the inner wall of the sump 1 and is used to separate the scraping assembly from the filter plate 23 when the scraping assembly returns from the end of the stroke.

[0058] The power assembly includes a lightweight impeller 3 arranged in the branch pipeline 2. The lightweight impeller 3 is coaxial with the branch pipeline 2, and the lightweight impeller 3 is connected to a transmission structure arranged in the sump 1.

[0059] A pull rod 10 is rotatably installed on the transmission structure. One end of the pull rod 10 away from the transmission structure is connected to the scraping assembly.

[0060] The transmission structure includes two driving wheels 4 rotatably installed on the inner wall of the sump 1. The rotating shaft of one of the driving wheels 4 is connected to the lightweight impeller 3, and a driving chain 5 is sleeved between the two driving wheels 4.

[0061] The transmission structure further includes two guide rods 9 symmetrically arranged in the sump 1. A follower sleeve 8 is slidably installed on the guide rods 9. A follower 7 is connected to the follower sleeve 8. The follower 7 is rotatably connected to the pull rod 10, and a hysteresis groove is formed in the follower 7 along its length direction. A slider 6 rotatably installed on the driving chain 5 can slide in the hysteresis groove.

[0062] In the prior art, in extreme weather, the rainfall is large. At this time, the rainwater will carry the withered branches and fallen leaves on the road surface and move towards the sump 1, and is filtered by the cover plate on the sump 1. In order to ensure that the rainwater can be discharged normally, the water permeable openings on the cover plate are generally set relatively large, so that it can only filter the larger impurities mixed in the rainwater, and some smaller wastes will still enter the sump 1. At this time, if the sewage directly enters the sewage treatment equipment, it will increase the load of the sewage treatment equipment and reduce the sewage treatment effect.

[0063] In the present invention, when the external rainfall is large, the flow rate of the rainwater in the branch pipeline 2 is relatively fast. At this time, the rainwater drives the lightweight impeller 3 to rotate by pushing the lightweight impeller 3. At this time, the lightweight impeller 3 will drive one of the driving wheels 4 to rotate, and make the driving chain 5 sleeved between the two driving wheels 4 move, thereby driving the connected slider 6 to move. During the movement of the slider 6, since the slider 6 is arranged in the hysteresis groove in the follower 7, the follower 7 can move in the length direction of the guide rod 9, and under the action of the two guide rods 9, the stability of the follower 7 during movement is stronger.

[0064] The driving chain 5 is a double-layer closed structure, so that as the driving chain 5 rotates continuously, the slider 6 can perform reciprocating lifting actions. At the same time, when the slider 6 moves to the circumferential section of the driving chain 5, it will slide in the accommodation groove, so that the slider 6 can drive the follower 7 to perform reciprocating lifting actions. During the reciprocating lifting process of the follower 7, it will drive the scraping assembly to move through the pull rod 10 to scrape the waste on the upper surface of the filter plate 23, avoiding the blockage of the filter openings on the filter plate 23 by waste and reducing the filtering effect of the filter plate 23. At the same time, by re-filtering the rainwater, the impurities in the rainwater are further reduced, avoiding the increase of the equipment load due to the rainwater entering the sewage treatment equipment carrying a large amount of waste. Moreover, the power for the movement of the scraping assembly is provided by the rainwater pushing the lightweight impeller 3, without the need for an additional output device, reducing the use cost and operation and maintenance cost, and is suitable for popularization and use.

[0065] Please refer to Figure 3 、 Figure 11 、 Figure 12 As shown in, the scraping assembly includes sliding troughs 12 symmetrically arranged on the inner walls of both sides of the sump 1. A connecting frame body 11 rotatably connected to the pull rod 10 is slidably arranged in the sliding troughs 12. A scraping plate 13 is sleeved in the connecting frame body 11, and the scraping plate 13 is connected to the connecting frame body 11 through an elastic structure;

[0066] The elastic structure includes a first vertical rod 14 fixedly installed on the inner wall of the connecting frame body 11. One end of the first vertical rod 14 away from the connecting frame body 11 can be inserted into the scraping plate 13, and a first spring 15 is sleeved on the first vertical rod 14. One end of the first spring 15 is connected to the scraping plate 13, and the other end is connected to the connecting frame body 11;

[0067] The double-layer trough includes a first horizontal trough, an inclined trough, a vertical trough and a second horizontal trough arranged on the inner wall of the sump 1. The first horizontal trough and the second horizontal trough are parallel to each other, and a reversing member 18 is rotatably installed at the connection between the first horizontal trough and the inclined trough;

[0068] The first horizontal trough, the inclined trough, the vertical trough and the second horizontal trough form a reversing trough 17, and a first pulley 16 rotatably installed on the scraping plate 13 can slide in the reversing trough 17.

[0069] During the lifting and lowering of the follower 7, the connecting frame body 11 moves accordingly under the action of the pulling rod 10. Specifically, when the follower 7 rises, at this time, the connecting frame body 11 will move from the stroke end of the end close to the guide rod 9 to the stroke end of the other end. During this process, the first pulley 16 on the scraping plate 13 will move in the first horizontal groove body to scrape the waste on the filter plate 23, avoiding the accumulation of waste on the upper surface of the filter plate 23 and affecting its filtering effect. And when the scraping plate 13 is about to move to the stroke end of the filter plate 23, the first pulley 16 will move onto the inclined groove body, so that the scraping plate 13 gradually separates from the filter plate 23. When moving to the end of the inclined groove body during movement, the first pulley 16 will drive the reversing member 18 to flip. When the first pulley 16 moves to the second horizontal groove body, the reversing member 18 resets. Then the first pulley 16 moves in the reverse direction, and under the support of the reversing member 18, the first pulley 16 moves on the second horizontal groove body until the first pulley 16 moves to the end of the second horizontal groove body and enters the first groove body through the vertical groove body to achieve reset.

[0070] Through the above settings, the waste on the filter plate 23 is scraped to improve the filtering effect of the filter plate 23. At the same time, during the reset process of the scraping plate 13, it will separate from the filter plate 23, increasing the water flow rate passing through the filter plate 23 and avoiding the reduction of the water filtration volume of the filter plate 23 caused by the scraping plate 13 always blocking part of the filter openings during operation.

[0071] Please refer to Figure 7 、 Figure 8 、 Figure 9 . A plurality of sets of the conduction components are arranged along the length direction of the filter plate 23, and the conduction components are adapted to the scraping components for jacking up the waste in the filter openings when the scraping components move;

[0072] The conduction component includes a lifting plate 25 arranged along the width direction of the filter plate 23. A vertical shaft 27 coaxial with the filter hole is fixed on the lifting plate 25, and the lifting plate 25 is slidably connected with a second vertical rod 28 fixed on the filter plate 23. A second spring 29 is sleeved on the second vertical rod 28. One end of the second spring 29 is connected to the filter plate 23, and the other end is connected to the lifting plate 25;

[0073] On both sides of the lifting plate 25, inclined plates 26 inclined upward are symmetrically arranged, and the inclined plates 26 are adapted to the lifting rollers 24 rotatably installed on the connecting frame body 11.

[0074] In the initial state, the vertical shaft 27 is located directly below the filtering opening, and there is a certain gap between the two, facilitating rainwater to pass through the filtering plate 23 from the filtering opening, improving the water filtration volume of the filtering plate 23. When the connecting frame body 11 drives the scraping plate 13 to move, the lifting roller 24 moves synchronously with the connecting frame body 11. When the scraping plate 13 approaches the filtering opening, the lifting roller 24 abuts against the inclined plate 26 on the lifting plate 25 and drives the lifting plate 25 to move upward. When the scraping plate 13 moves to directly above the filtering opening, the upper surface of the vertical shaft 27 is flush with the upper surface of the filtering plate 23. During this process, the vertical shaft 27 can push out the waste blocked in the filtering opening and be scraped by the scraping plate 13, effectively avoiding the phenomenon that the scraping plate 13 cannot scrape due to waste entering the interior of the filtering opening, realizing the dredging of the filtering opening, improving the filtering effect of the filtering plate 23. At the same time, during the reverse movement of the scraping plate 13, the vertical shaft 27 can also perform a dredging action and dredge the filtering opening again, enabling the waste to be removed within a short time after entering the filtering opening, further improving the filtering effect of the filtering plate 23.

[0075] It should be noted that the circumferential diameter of the above-mentioned vertical shaft 27 is smaller than the circumferential diameter of the filtering opening to prevent jamming between the two when the vertical shaft 27 enters the filtering opening due to waste being between them. And due to the setting of the second spring 29, when the lifting plate 25 rises, the second spring 29 is compressed. Thus, after the lifting roller 24 separates from the inclined plate 26, the elastic force released by the second spring 29 drives the lifting plate 25 to descend, and the vertical shaft 27 separates from the filtering opening, avoiding jamming between the two and reducing the conduction amount of the filtering opening.

[0076] Please refer to Figure 10 , the blanking assembly is arranged on one side of the sump 1, and the blanking assembly can move the waste out of the sump 1 when the scraping assembly moves to the end of the stroke;

[0077] The blanking assembly includes a waste box body 30 arranged on the side of the sump 1, and the sump 1 is connected and communicated with the waste box body 30 through an inclined hopper 31;

[0078] The blanking assembly further includes a folding plate 20 rotatably installed on the filtering plate 23. The folding plate 20 is connected to the filtering plate 23 through an elastic sheet 21. Two abutting rods 22 are symmetrically arranged on the folding plate 20, and the abutting rods 22 are adapted to the second pulleys 19 arranged on the connecting frame body 11 and are used to drive the folding plate 20 to rotate when the connecting frame body 11 moves to the end of the stroke.

[0079] In the initial state, due to the existence of the elastic sheet 21, the folding plate 20 is in a state of overlapping with the filter plate 23. When the scraping plate 13 moves to scrape the waste on the filter plate 23, and when the scraping plate 13 moves to the stroke end of the filter plate 23, the second pulley 19 on the connecting frame 11 will abut against the abutting rod 22. During the continuous movement of the scraping plate 13, the abutting rod 22 is pushed to move, causing the folding plate 20 to rotate along its rotating shaft. At this time, the waste on the scraping plate 13 enters the inclined hopper 31 through the folding plate 20 and then enters the waste box body 30 from the inclined hopper 31, so as to remove the waste from the sump 1, keep the waste content in the sump 1 low, and avoid the waste being washed away due to the impact of water flow. From another perspective, the filtering effect of the filter plate 23 is also improved.

[0080] It should also be noted that the bottom of the waste box body 30 is communicated with the sump 1 through a plurality of small holes. This is mainly because when the folding plate 20 is opened, a part of the rainwater will enter the waste box body 30. This part of the rainwater will enter the sump 1 through the small holes. At the same time, this part of the rainwater can wash the waste on the folding plate 20 to prevent the waste from adhering to the folding plate 20. After the folding plate 20 is reset, it will flow back into the sump 1 again.

[0081] As an embodiment of the present invention, a design method for the distributed pipe network sewage system is also proposed, including the following steps:

[0082] Step 1: General plan design. Select a suitable route according to the requirements of municipal planning, the existing underground pipeline conditions in the block (including existing sewage pipelines, gas pipelines, cable channels, etc.) and the street area conditions in the block, so as to avoid deviating from the municipal planning or interfering with the existing underground pipelines.

[0083] Step 2: Plane design of the main and branch pipelines. Locate the pipelines according to the actual situation on site and complete the design of the pipe sections to reduce material waste during the construction process.

[0084] Step 3: Determine the design standards. Determine the average daily drainage volume according to the number of residents along the pipeline path, and combine with the historical maximum rainfall in the past 30 years to obtain the drainage volume under the extreme state, so as to select a sewage pipeline with a suitable pipe diameter.

[0085] Step 4: Pipe hydraulic calculation. Select the control points according to the drainage volume and perform hydraulic calculations section by section in turn.

[0086] Step 5: Draw the plane and longitudinal section diagrams of the pipeline system.

[0087] In summary, when the external rainfall is large, the rainwater has a relatively fast flow rate in the branch pipeline 2. At this time, the rainwater drives the lightweight impeller 3 to rotate by pushing it. At this time, the lightweight impeller 3 will drive one of the driving wheels 4 to rotate, and make the driving chain 5 sleeved between the two driving wheels 4 move, thereby driving the slider 6 connected thereto to move. During the movement of the slider 6, since the slider 6 is arranged in the retention groove in the follower 7, the follower 7 can move in the length direction of the guide rod 9, and under the action of the two guide rods 9, the stability of the follower 7 during movement is stronger.

[0088] The driving chain 5 is a double-layer closed structure, so that as the driving chain 5 rotates continuously, the slider 6 can perform reciprocating lifting actions. At the same time, when the slider 6 moves to the circumferential section of the driving chain 5, it will slide in the retention groove, so that the slider 6 can drive the follower 7 to perform reciprocating lifting actions. During the reciprocating lifting process of the follower 7, it will drive the scraping assembly to move through the pull rod 10 to scrape the waste on the upper surface of the filter plate 23, so as to avoid the waste blocking the filter openings on the filter plate 23 and reducing the filtering effect of the filter plate 23. At the same time, by filtering the rainwater again, the impurities in the rainwater are further reduced, avoiding the rainwater entering the sewage treatment equipment from increasing the load of the equipment due to carrying a large amount of waste. Moreover, the power for the movement of the scraping assembly is provided by the rainwater pushing the lightweight impeller 3, without the need for an additional output device, reducing the use cost and operation and maintenance cost, and is suitable for popularization and use.

[0089] During the lifting process of the follower 7, the connecting frame 11 moves accordingly under the action of the pull rod 10. Specifically, when the follower 7 rises, the connecting frame 11 will move from the stroke end of its end close to the guide rod 9 to the stroke end of the other end. During this process, the first pulley 16 on the scraping plate 13 will move in the first horizontal groove to scrape the waste on the filter plate 23, so as to avoid the waste accumulating on the upper surface of the filter plate 23 and affecting its filtering effect. And when the scraping plate 13 is about to move to the stroke end of the filter plate 23, the first pulley 16 will move onto the inclined groove to gradually separate the scraping plate 13 from the filter plate 23. When moving to the end of the inclined groove during movement, the first pulley 16 will drive the reversing member 18 to flip. When the first pulley 16 moves to the second horizontal groove, the reversing member 18 is reset. Then the first pulley 16 moves in the reverse direction, and under the support of the reversing member 18, the first pulley 16 moves on the second horizontal groove until the first pulley 16 moves to the end of the second horizontal groove and enters the first groove through the vertical groove to achieve reset.

[0090] Through the above settings, the waste on the filter plate 23 is scraped off, so as to improve the filtering effect of the filter plate 23. At the same time, during the reset process of the scraping plate 13, it will separate from the filter plate 23, increasing the water flow rate through the filter plate 23 and avoiding the phenomenon that the scraping plate 13 always blocks part of the filter openings during operation, resulting in a decrease in the water filtration volume of the filter plate 23.

[0091] In the initial state, the vertical shaft 27 is located directly below the filter opening, and there is a certain gap between the two, facilitating rainwater to pass through the filter plate 23 from the filter opening, improving the water filtration volume of the filter plate 23. When the connecting frame 11 drives the scraping plate 13 to move, the lifting roller 24 moves synchronously with the connecting frame 11. When the scraping plate 13 approaches the filter opening, the lifting roller 24 abuts against the inclined plate 26 on the lifting plate 25 and drives the lifting plate 25 to move upward. When the scraping plate 13 moves to directly above the filter opening, the upper surface of the vertical shaft 27 is flush with the upper surface of the filter plate 23. During this process, the vertical shaft 27 can push out the waste blocked in the filter opening, which is then scraped off by the scraping plate 13, effectively avoiding the phenomenon that the scraping plate 13 cannot scrape due to waste entering the filter opening, realizing the dredging of the filter opening, improving the filtering effect of the filter plate 23. At the same time, during the reverse movement of the scraping plate 13, the vertical shaft 27 can also perform a dredging action and dredge the filter opening again, so that the waste can be removed in a short time after entering the filter opening, further improving the filtering effect of the filter plate 23.

[0092] It should be noted that the circumferential diameter of the above-mentioned vertical shaft 27 is smaller than the circumferential diameter of the filter opening, to prevent jamming between the two when the vertical shaft 27 enters the filter opening due to waste being between them. And due to the arranged second spring 29, when the lifting plate 25 rises, the second spring 29 is compressed. Thus, after the lifting roller 24 separates from the inclined plate 26, the elastic force of the second spring 29 is released to drive the lifting plate 25 to descend, and the vertical shaft 27 separates from the filter opening, avoiding jamming between the two and reducing the conduction amount of the filter opening.

[0093] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0094] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A distributed pipe network sewage system for a smart city, comprising: An inlet, a pipe system, a sewage pumping station, sewage treatment and utilization structures, and an outlet, which are connected in sequence. It is characterized in that the inlet includes: A sump well, on which a branch pipe is provided and is in communication with it. A filter plate, arranged in the sump well, used for filtering the collected sewage. Multiple filter openings are provided on the filter plate. A scraping mechanism, arranged in the sump well, used for scraping the waste on the filter plate. The scraping mechanism includes a power component and a scraping component. The power component can drive the scraping component to reciprocate along the length direction of the filter plate. The scraping component cooperates with a double-layer groove body arranged on the inner wall of the sump well, and is used for separating the scraping component from the filter plate when the scraping component returns from the end of the stroke. A conduction component, multiple groups of which are arranged along the length direction of the filter plate, and the conduction component is adapted to the scraping component, and is used for lifting the waste in the filter openings when the scraping component moves. A blanking component, arranged on one side of the sump well, and the blanking component can move the waste out of the sump well when the scraping component moves to the end of the stroke. The scraping component includes sliding groove bodies symmetrically arranged on the inner walls on both sides of the sump well. A connecting frame body is slidably arranged in the sliding groove bodies. A scraping plate is sleeved in the connecting frame body. The scraping plate is connected to the connecting frame body through an elastic structure. The double-layer groove body includes a first horizontal groove body, an inclined groove body, a vertical groove body, and a second horizontal groove body arranged on the inner wall of the sump well. The first horizontal groove body and the second horizontal groove body are parallel to each other, and a reversing part is rotatably installed at the connection between the first horizontal groove body and the inclined groove body. The first horizontal groove body, the inclined groove body, the vertical groove body, and the second horizontal groove body form a reversing groove. A first pulley rotatably installed on the scraping plate can slide in the reversing groove. The power component includes a transmission structure arranged in the sump well. A pulling rod is rotatably installed on the transmission structure. The end of the pulling rod away from the transmission structure is connected to the scraping component. The transmission structure includes two driving wheels rotatably installed on the inner wall of the sump well. A driving chain is sleeved between the two driving wheels. The transmission structure further includes two guide rods symmetrically arranged in the sump well. A follower sleeve is slidably installed on the guide rods. A follower is connected to the follower sleeve. The follower is rotatably connected to the pulling rod, and a retention groove is provided along the length direction of the follower. A slider rotatably installed on the driving chain can slide in the retention groove. The connecting frame body is rotatably connected to the pulling rod.

2. The distributed pipe network sewage system for a smart city according to claim 1, characterized in that, The power component includes a lightweight impeller arranged in the branch pipe. The lightweight impeller is coaxial with the branch pipe, and the lightweight impeller is connected to the transmission structure.

3. The distributed pipe network sewage system for a smart city according to claim 2, characterized in that, The rotating shaft of one of the driving wheels is connected to the lightweight impeller.

4. The distributed pipe network sewage system for a smart city according to claim 2, characterized in that, The elastic structure includes a first vertical rod installed on the inner wall of the connecting frame body. The end of the first vertical rod away from the connecting frame body can be inserted into the scraping plate, and a first spring is sleeved on the first vertical rod. One end of the first spring is connected to the scraping plate, and the other end is connected to the connecting frame body.

5. The distributed pipe network sewage system for a smart city according to claim 2, wherein The conduction component includes a lifting plate arranged along the width direction of the filter plate. A vertical shaft coaxial with the filter opening is arranged on the lifting plate, and the lifting plate is slidably connected to a second vertical rod arranged on the filter plate. A second spring is sleeved on the second vertical rod, with one end of the second spring connected to the filter plate and the other end connected to the lifting plate; On both sides of the lifting plate, inclined plates inclined upward are symmetrically arranged, and the inclined plates are adapted to lifting rollers rotatably installed on the connecting frame body.

6. The distributed pipe network sewage system for a smart city according to claim 4, characterized in that, The blanking component includes a waste box arranged on the side of the sump. The sump is connected and communicated with the waste box through an inclined hopper; The blanking component further includes a folding plate rotatably installed on the filter plate. The folding plate is connected to the filter plate through an elastic sheet. Two abutting rods are symmetrically arranged on the folding plate, and the abutting rods are adapted to second pulleys arranged on the connecting frame body and are used for driving the folding plate to rotate when the connecting frame body moves to the end of the stroke.

7. A design method for a distributed pipe network sewage system according to any one of claims 1-6, characterized in that, It includes the following steps: Step 1: General plan design. Select a suitable route according to the requirements of municipal planning, the existing underground pipeline conditions in the block, and the street area conditions in the block to avoid deviating from the municipal planning or interfering with the existing underground pipelines; Step 2: Plane design of the main and branch pipelines. Locate the pipelines according to the actual situation on site and complete the design of the pipe sections to reduce material waste during the construction process; Step 3: Determine the design standards. Determine the daily average drainage volume according to the number of residents along the pipeline path, and combine with the historical maximum rainfall in the past 30 years to obtain the drainage volume under the extreme state, so as to select a sewage pipeline with a suitable pipe diameter; Step 4: Pipeline hydraulic calculation. Select control points according to the drainage volume and perform hydraulic calculations section by section in sequence; Step 5: Draw the plan view and longitudinal section view of the pipeline system.

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