Flow dividing type drainage structure based on municipal drainage

Abstract

The utility model relates to a diversion type drainage structure based on municipal drainage, which comprises a main pipe shell which is communicated with a ground drainage flow channel and an underground sewage flow channel to directionally convey rainwater, and the side wall surface of the main pipe shell is embedded with a diversion filtering assembly which can continuously filter and divert the rainwater conveyed by a shell cavity of the main pipe shell. A residue collecting and water filtering assembly capable of collecting impurities transferred by the separating and filtering assembly and filtering rainwater for the second time is further arranged on the side, away from the main pipe shell, of the separating and filtering assembly; an overflow sedimentation assembly is further arranged at the axial lower end of the main pipe shell; and the water slurry filter wheel positioned by the branch filter shell is partially placed into the shell cavity of the main shell by the branch filter assembly according to a mode that the shell cavity of the main shell can be separated to continuously filter rainwater. According to the utility model, rainwater can be continuously shunted and filtered to improve the purity of the rainwater and ensure the smoothness of the drainage system so as to continuously drain water at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of diversion drainage systems, and in particular to a diversion type drainage structure based on municipal drainage. Background Art

[0002] Urban drainage pipes are important infrastructure for the normal operation of cities, and they are required to be able to collect and discharge urban rainwater and sewage safely and timely. The urban drainage system mixes sewage, industrial wastewater and rainwater in the same pipe. If it is directly discharged into natural water bodies, the receiving water bodies will be seriously polluted. If it is directly discharged into sewage treatment plants for treatment, a large amount of relatively clean rainwater on rainy days will enter the sewage treatment plant for unnecessary treatment, resulting in a waste of resources.

[0003] At present, there are a large number of related technologies that separate rainwater and sewage and discharge them to rivers and sewage treatment plants respectively, thereby reducing the processing volume of the downstream system and improving the environmental friendliness of rainwater and sewage discharge. With the frequent occurrence of extreme weather, there is no doubt that the continuous unobstructed drainage capacity of the drainage system has been put under greater test. However, the existing drainage structure cannot filter rainwater, and the debris carried in the rainwater can easily cause pollution to natural water bodies, especially the debris in the rainwater causes the blockage of pipes. In the case of heavy rain or excessive rainfall, the rainwater in the urban roads cannot be discharged in time, causing urban waterlogging, affecting urban traffic, bringing inconvenience to urban management, increasing the pressure on management departments, and increasing manual labor. Finally, although the current conventional filter diversion structure can filter a certain amount of rainwater, the filter will be blocked by the continuously increasing impurities, so that it cannot continue to effectively filter the impurities and cannot maintain an efficient filtration capacity for a long time. Utility Model Content

[0004] The utility model aims to provide a diversion drainage structure based on municipal drainage that can continuously divert and filter rainwater to improve the purity of rainwater while ensuring the smooth flow of the drainage system and continuous drainage, so as to solve the problem that the existing diversion drainage structure cannot effectively filter impurities in rainwater, and the conventional filter mesh filtering structure is blocked due to the accumulation of filtered impurities, and cannot continuously and efficiently drain water, thereby affecting the drainage efficiency.

[0005] The technical solution adopted by the utility model is: a diversion-type drainage structure based on municipal drainage, comprising a main pipe shell which connects a ground drainage flow channel and an underground sewage flow channel to directionally transport rainwater, a sub-filter component which can continuously filter and divert rainwater transported by its shell cavity is embedded in the side wall of the main pipe shell, and a slag collection and water filtering component which can collect impurities transferred by the sub-filter component and perform secondary rainwater filtering is also arranged on the side of the sub-filter component away from the main pipe shell; an overflow sedimentation component is also arranged at the axial lower end of the main pipe shell; the sub-filter component places the water slurry filter wheel part positioned by the sub-filter shell into the shell cavity of the main pipe shell in a manner that the shell cavity of the main pipe shell can be separated to continuously filter rainwater.

[0006] According to a preferred embodiment, the sub-filter assembly includes the sub-filter shell, the water-slurry filter wheel, a drive motor and a slag discharge bevel, wherein the water-slurry filter wheel is rotatably inserted in the sub-filter shell through a rotating shaft; the outer side of the sub-filter shell is equipped with the drive motor which is transmission-connected with the rotating shaft to drive the water-slurry filter wheel to rotate in a directional manner; the bottom of the sub-filter shell is provided with the slag discharge bevel which can be connected to the slag collection and water filtration assembly.

[0007] According to a preferred embodiment, the central axis of the water slurry filter wheel is installed in a coaxial manner to be connected with the rotating shaft, and a plurality of frame plates parallel to the radial direction of its cross section are annularly inserted on the side wall of the central axis, and a plurality of through oblique holes are arranged in an array in the frame plates.

[0008] According to a preferred embodiment, a connection port is opened on the side of the main pipe shell, and the secondary filter shell is docked and installed on the connection port, so that the shell cavity and the secondary filter shell are combined to construct a accommodating chamber that matches the outer contour of the water slurry filter wheel rotatably inserted in the secondary filter shell.

[0009] According to a preferred embodiment, a cambered shell plate matching the cylindrical side wall profile of the water slurry filter wheel is provided on the side wall of the main pipe shell away from the connecting port, so that the cambered shell plate cooperates with the water slurry filter wheel to separate and cut off the shell cavity.

[0010] According to a preferred embodiment, anti-leakage convex strips capable of assisting in guiding rainwater to flow directional through the water slurry filter wheel are provided on the connection port and the upper edge of the arcuate shell plate.

[0011] According to a preferred embodiment, the slag collecting and water filtering assembly includes a slag collecting shell, a secondary filter plate and a return pipe, wherein the secondary filter plate capable of filtering and discharging rainwater remaining in the impurities collected in its shell cavity is inlaid on the side of the slag collecting shell close to the main shell; and the return pipe connected to the main shell is provided on the side of the secondary filter plate away from the slag collecting shell.

[0012] According to a preferred embodiment, an upwardly inclined filtering through hole is provided on the upright plate body of the secondary filter plate.

[0013] According to a preferred embodiment, the sedimentation tank of the overflow sedimentation assembly is installed on the output end of the main shell through a guide pipe, a plurality of buffer inclined plates are arranged in the guide pipe at axial intervals, and the sedimentation tank is separated by upper and lower partitions arranged at intervals.

[0014] According to a preferred embodiment, the axial upper end surface of the filter housing is further provided with a housing cover.

[0015] The beneficial effects of the utility model are:

[0016] The filter assembly provided in the present application can continuously filter and divert rainwater by means of rotary filtration, and in the process of the water slurry filter wheel rotating clockwise, the impurities intercepted by it can follow the position change, so as to move from above the interception surface to below the interception surface, and then under the action of gravity, the impurities are separated from the interception surface defined by the water slurry filter wheel to realize the collection and separation of impurities, thereby realizing the diversion of impurities and liquid flow. The partial water slurry filter wheel after the complete impurities are separated can be rotated into the main pipe shell again to perform filter treatment on the liquid flow for the second time, so as to realize the continuous filtration of the filter assembly while also being able to ensure the unobstructed state of the filter area by means of rotary cleaning, so as to continuously and efficiently complete the filtration and diversion of rainwater. The filter assembly can ensure the purity of rainwater by continuous and efficient separation while avoiding the blockage of the drainage system caused by impurities, and also eliminates the defect that the existing filter net needs to be manually cleaned regularly, and improves the high-intensity drainage capacity of the entire drainage system to continuously cope with sudden severe weather, so as to ensure that the rainwater can be continuously, efficiently and timely completed, avoiding the risk of urban waterlogging and traffic jams, and reducing the investment of manpower. The slag collection and water filtration component provided in the present application can collect the impurities filtered by the filter component, and at the same time, perform secondary filtering on the residual rainwater in the impurities by providing a vertical filter net, so that the filtered rainwater can be recirculated for a second time, so as to improve the quality and effect of the diversion filtration. The overflow sedimentation component provided in the present application promotes the sedimentation of small particles of impurities such as gravel in the filtered liquid flow by means of the impact force of the slow-flow liquid flow, so as to further improve the purity of the rainwater, avoid the gravel in the rainwater from being deposited in the underground drainage pipes and downstream rivers, and cause the pipe cross-section to become smaller and the river level to rise, thereby improving the sustainable use capacity of the entire drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a preferred split-flow drainage structure based on municipal drainage proposed by the utility model;

[0018] Figure 2It is a plan schematic diagram of a water slurry filter wheel of a preferred split-flow drainage structure based on municipal drainage proposed by the utility model.

[0019] Reference numerals list

[0020] 1: main pipe shell; 2: sub-filter assembly; 3: slag collection and water filtration assembly; 4: overflow sedimentation assembly; 11: shell cavity; 12: connection port; 13: cambered shell plate; 14: anti-leakage convex strip; 21: sub-filter shell; 22: slurry filter wheel; 23: drive motor; 24: slag discharge oblique port; 25: rotating shaft; 26: shell cover; 31: slag collection shell; 32: secondary filter plate; 33: return pipe; 41: sedimentation tank; 42: guide pipe; 43: buffer oblique plate; 44: upper partition; 45: lower partition; 221: middle axis; 222: frame plate; 223: through oblique hole; 321: filter through hole. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be briefly introduced below in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] The technical solution provided by the present invention will be described in detail below by way of embodiments with reference to the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In some examples, some implementation methods are not described or are not described in detail because they belong to existing or conventional technologies.

[0023] In addition, the technical features recorded in this article, or the steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can also be combined in any suitable manner in one or more embodiments. For those skilled in the art, it is easy to understand that the steps or operation sequence of the methods related to the embodiments provided herein can also be changed. Any order in the drawings and embodiments is only for illustrative purposes and does not imply a requirement to follow a certain order unless it is explicitly stated that a certain order is required.

[0024] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, under reasonable circumstances (not constituting a self-contradiction), include direct and indirect connections (couplings).

[0025] The following is a detailed description with reference to the accompanying drawings.

[0026] Example 1

[0027] The present application provides a diversion drainage structure based on municipal drainage, which includes a main pipe shell 1, a filter assembly 2, a slag collection and water filtration assembly 3 and an overflow sedimentation assembly 4.

[0028] according to Figure 1-2A specific embodiment is shown, in which the main pipe shell 1 diverts and diverts the filtered liquid flow between the ground drainage channel and the underground sewage channel to transport rainwater in a directional manner. The side wall of the main pipe shell 1 is embedded with a sub-filter component 2 that can continuously filter and divert the rainwater transported by its shell cavity. The side of the sub-filter component 2 away from the main pipe shell 1 is also provided with a slag collection and water filtration component 3 that can collect impurities transferred by the sub-filter component 2 and filter rainwater for a secondary time. The axial lower end of the main pipe shell 1 is also provided with an overflow sedimentation component 4. The sub-filter component 2 places the water slurry filter wheel 22 located by the sub-filter shell 21 into the shell cavity 11 of the main pipe shell 1 in a manner that can separate the shell cavity 11 of the main pipe shell 1 and continuously filter rainwater, so as to filter and isolate the shell cavity 11, forcing the rainwater that flows in a directional manner in the shell cavity 11 to pass through the water slurry filter wheel 21 to achieve filtering and diversion during the drainage and discharge of rainwater. The filter assembly 2 provided in the present application can continuously filter and divert rainwater by means of rotary filtration, and in the process of the water slurry filter wheel 22 rotating clockwise, the impurities intercepted by it can follow the position change, so as to move from above the interception surface to below the interception surface, and then under the action of gravity, the impurities are separated from the interception surface defined by the water slurry filter wheel 22 to realize the collection and separation of impurities, thereby realizing the diversion of impurities and liquid flow. The partial water slurry filter wheel 22 after the complete impurities are separated can be rotated into the main pipe shell 1 again to perform filter treatment on the liquid flow for the second time, so as to realize the continuous filtration of the filter assembly 2 while also being able to ensure the unobstructed state of the filter area by means of rotary cleaning, so as to continuously and efficiently complete the filtration and diversion of rainwater. The filter assembly 2 can ensure the purity of rainwater by continuous and efficient separation while avoiding the blockage of the drainage system caused by impurities, and also eliminates the defect that the existing filter net needs to be manually cleaned regularly, and improves the high-intensity drainage capacity of the entire drainage system to continuously cope with sudden severe weather, so as to ensure that the rainwater can be continuously, efficiently and timely completed, avoiding the risk of urban waterlogging and traffic jams, and reducing the investment of manpower. The slag collection and water filtration component 3 provided in the present application can collect the impurities filtered by the filter component 2, and at the same time, perform secondary filtering on the residual rainwater in the impurities by providing a vertical filter net, so that the filtered rainwater can be recirculated for a second time, so as to improve the quality and effect of the diversion filtration. The overflow sedimentation component 4 provided in the present application promotes the sedimentation of small particles of impurities such as gravel in the filtered liquid flow by means of the impact force of the slow-flow liquid flow, so as to further improve the purity of the rainwater, and avoid the gravel in the rainwater from being deposited in the underground drainage pipes and downstream rivers, resulting in the drawbacks of reduced pipe cross-section and increased river level, thereby improving the sustainable use capacity of the entire drainage system.

[0029] Preferably, the shell cavity 11 defined by the main pipe shell 1 can directional transport rainwater converged from the ground. Preferably, a connection port 12 is provided on the side of the main pipe shell 1. Preferably, the sub-filter shell 21 is docked and installed on the connection port 12, so that the shell cavity 11 and the sub-filter shell 21 are combined to construct a accommodating chamber that matches the outer contour of the water slurry filter wheel 22 that is rotatably inserted in the sub-filter shell 21. Preferably, a curved shell plate 13 that matches the cylindrical side wall contour of the water slurry filter wheel 22 is provided on the side wall of the main pipe shell 1 away from the connection port 12. The curved shell plate 13 cooperates with the water slurry filter wheel 22 to separate and cut off the shell cavity 11, so as to limit the directional flow of rainwater that must pass through the water slurry filter wheel 22 to effectively complete the filtering and diversion. Preferably, the upper edges of the connection port 12 and the curved shell plate 13 are provided with anti-leakage convex strips 14 that can assist in guiding the rainwater to flow directionally through the water slurry filter wheel 22. Specifically, the anti-leakage convex strip 14 has a lower arc surface that matches the cylindrical side wall profile of the water slurry filter wheel 22 and an upper inclined surface that guides rainwater to gather on the frame plate 222 of the water slurry filter wheel 22. The convex arc shell plate 13 provided in the present application can effectively cooperate with the water slurry filter wheel 22 to separate the shell cavity 11, so as to ensure that the rainwater in the shell cavity 11 can be efficiently and fully continuously filtered by the water slurry filter wheel 22, thereby ensuring the filtering effect and efficiency.

[0030] Preferably, the filter assembly 2 comprises a filter housing 21, a water slurry filter wheel 22, a drive motor 23, a slag discharge bevel 24, a rotating shaft 25 and a shell cover 26. Preferably, the water slurry filter wheel 22 is rotatably inserted in the filter housing 21 through the rotating shaft 25, so that at least part of its wheel body is placed in the inner cavity of the filter housing 21. Preferably, the axial upper end surface of the filter housing 21 is also provided with a shell cover 26. Preferably, the outer side surface of the filter housing 22 is provided with a drive motor 23 that is transmission-connected with the rotating shaft 25 to drive the water slurry filter wheel 22 to rotate in a directional manner. Preferably, the bottom of the filter housing 21 is provided with a slag discharge bevel 24 that can be connected to the slag collection and water filtering assembly 3. Specifically, the drive motor 23 adopts an existing low-speed high-torque motor of model 70ZYT88PX16A3. Preferably, the central axis 221 of the water slurry filter wheel 22 is installed in a coaxial manner with the rotating shaft 25 for connection. Further preferably, a plurality of frame plates 222 are inserted in an annular manner and spaced apart on the side wall of the shaft body of the central shaft 221 and are radially parallel to the cross section thereof. Specifically, a plurality of through oblique holes 223 are arranged in an array in the frame plate 222. The through oblique holes 223 are constructed in a manner of forming an acute angle with the plate plane of the frame plate 222, so that when the frame plate 222 rotates and the impurities intercepted by it are on its lower surface, the impurities blocked in the through oblique holes 223 can fall off due to their own gravity during the downward deflection of the frame plate 222, thereby improving the falling off of the intercepted impurities, so that the frame plate 222 can perform secondary diversion filtration more effectively. The water slurry filter wheel 22 provided in the present application can continuously rotate clockwise so that its frame plates 222 arranged at intervals in the annular direction rotate upward from the shell cavity 11 in turn to filter the rainwater and then further rotate into the filter shell 21, thereby further downward turning occurs in the filter shell 21 to complete the shedding and removal of the filter residue, and then further upward rotation occurs to enter the shell cavity 11 again to filter the rainwater for the second time, thereby achieving the continuous and efficient filtering and processing capability of the water slurry filter wheel 22 on the rainwater flow in the shell cavity 11 through the mutual cooperation and continuous rotation of a plurality of plates.

[0031] Preferably, the slag collection and water filtering assembly 3 includes a slag collection shell 31, a secondary filter plate 32 and a return pipe 33. Preferably, the side of the slag collection shell 31 close to the main shell 1 is inlaid with a secondary filter plate 32 that can filter and discharge the rainwater remaining in the impurities collected in its shell cavity. Further preferably, a return pipe 33 connected to the main shell 1 is provided on the side of the secondary filter plate 32 away from the slag collection shell 31. Specifically, an upwardly inclined filter through hole 321 is provided on the vertical plate body of the secondary filter plate 32. The secondary filter plate 32 provided in the present application can filter out the residual water in the slag collection shell 31 to reduce the water content of the impurities, so as to store more impurities and achieve a better filtration effect. The present application provides the filter through hole 321 with an oblique upward inclination from the inner side to the outer side of the slag collection shell 31 to make the filter through hole 321 less likely to be blocked by impurities, thereby improving the water filtering effect.

[0032] Preferably, the overflow sedimentation assembly 4 includes a sedimentation tank 41, a guide pipe 42, a buffer inclined plate 43, an upper baffle 44 and a lower baffle 45. Preferably, the sedimentation tank 41 is installed on the output end of the main pipe shell 1 through the guide pipe 42. Preferably, a plurality of buffer inclined plates 43 are staggered along the axial interval in the guide pipe 42. Preferably, the sedimentation tank 41 is separated by an upper baffle 44 and a lower baffle 45 arranged at intervals. Specifically, the side of the sedimentation tank 41 away from the guide pipe 42 is connected to the underground sewage flow channel through the guide pipeline, so that the urban surface sewage and rainwater are filtered and transported to the river. The buffer inclined plate 43, the upper baffle 44 and the lower baffle 45 provided in the present application can grade the impact force of the buffer flow, so that the rainwater flowing into the sedimentation tank 41 can be discharged in an overflow manner, thereby improving the sedimentation effect, so that impurities such as gravel can be separated more effectively, so as to avoid the sedimentation and siltation of small particles of impurities in the subsequent drainage pipeline, causing the pipeline to narrow or even block, thereby affecting the drainage rate.

[0033] The present utility model is not limited to the above optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope of the claims of the present utility model fall within the protection scope of the present utility model. Those skilled in the art should understand that the present utility model specification and its drawings are illustrative and do not constitute limitations on the claims. The protection scope of the present utility model is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional method and should not be understood as having to be set. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A diversion drainage structure based on municipal drainage, comprising a main pipe shell (1) for connecting a surface drainage channel and an underground sewage channel to directional transport rainwater, characterized in that: A filter assembly (2) capable of continuously filtering and diverting rainwater transported by the shell cavity is embedded in the side wall of the main pipe shell (1), and a slag collection and water filtering assembly (3) capable of collecting impurities transferred by the filter assembly (2) and performing secondary rainwater filtering is also arranged on the side of the filter assembly (2) away from the main pipe shell (1); An overflow sedimentation assembly (4) is also provided at the axial lower end of the main pipe shell (1); The filter subassembly (2) places the slurry filter wheel (22) portion positioned by the filter subassembly shell (21) into the shell cavity (11) of the main shell (1) in a manner that the shell cavity (11) of the main shell (1) can be separated to continuously filter rainwater.

2. The diversion drainage structure based on municipal drainage according to claim 1, characterized in that: The filter assembly (2) comprises the filter housing (21), the water slurry filter wheel (22), a drive motor (23) and a slag discharge bevel (24), wherein: The water slurry filter wheel (22) is rotatably inserted into the filter housing (21) via a rotating shaft (25); The driving motor (23) is installed on the outer side of the filter housing (21) and is in transmission connection with the rotating shaft (25) to drive the water slurry filter wheel (22) to rotate in a directional manner; The bottom of the filter housing (21) is provided with the slag discharge oblique opening (24) capable of communicating with the slag collection and water filtering assembly (3).

3. The diversion drainage structure based on municipal drainage as claimed in claim 2, characterized in that: The central axis (221) of the water slurry filter wheel (22) is installed and connected to the rotating shaft (25) in a coaxial manner, and a plurality of frame plates (222) parallel to the radial direction of the cross section of the central axis (221) are inserted in an annular manner at intervals on the side wall of the shaft body. A plurality of through oblique holes (223) are arranged in an array in the frame plate (222).

4. The diversion drainage structure based on municipal drainage as claimed in claim 3, characterized in that: A connecting port (12) is provided on the side of the main housing (1), and the filter housing (21) is butt-mounted on the connecting port (12), so that the housing cavity (11) and the filter housing (21) are combined to form a receiving chamber that matches the outer contour of a water slurry filter wheel (22) rotatably inserted in the filter housing (21).

5. The diversion drainage structure based on municipal drainage according to claim 4, characterized in that: A cambered shell plate (13) matching the cylindrical side wall profile of the water slurry filter wheel (22) is arranged on the side wall of the main pipe shell (1) away from the connecting port (12), so that the cambered shell plate (13) cooperates with the water slurry filter wheel (22) to separate and cut off the shell cavity (11).

6. The diversion drainage structure based on municipal drainage according to claim 5, characterized in that: Anti-leakage convex strips (14) capable of assisting in guiding rainwater to flow in a directional manner through the water slurry filter wheel (22) are provided on the upper edges of the connection port (12) and the curved shell plate (13).

7. The diversion drainage structure based on municipal drainage according to claim 6, characterized in that: The slag collecting and water filtering assembly (3) comprises a slag collecting shell (31), a secondary filtering plate (32) and a return pipe (33), wherein: The side of the slag collecting shell (31) close to the main shell (1) is inlaid with the secondary filter plate (32) capable of filtering and discharging rainwater remaining in the impurities collected in the shell cavity; The return pipe (33) communicating with the main pipe shell (1) is provided on the side of the secondary filter plate (32) away from the slag collecting shell (31).

8. The diversion drainage structure based on municipal drainage according to claim 7, characterized in that: An upwardly inclined filtering through hole (321) is provided on the upright plate body of the secondary filtering plate (32).

9. The diversion drainage structure based on municipal drainage according to claim 8, characterized in that: The sedimentation tank (41) of the overflow sedimentation assembly (4) is installed on the output end of the main pipe shell (1) through a flow guide pipe (42). A plurality of buffer inclined plates (43) are arranged in an axially spaced and staggered manner in the guide pipe (42), and the sedimentation tank (41) is divided by upper baffles (44) and lower baffles (45) arranged at intervals.

10. The diversion drainage structure based on municipal drainage according to claim 9, characterized in that: The axial upper end surface of the filter housing (21) is also provided with a housing cover (26).

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