CN115247449B

CN115247449B - Rain and sewage diversion system

Info

Publication number: CN115247449B
Application number: CN202210573999.3A
Authority: CN
Inventors: 沈文渊; 沈敬荃; 谭兴巧; 沈文敏; 潘英英
Original assignee: Hangzhou Lihuan Environmental Group Co ltd
Current assignee: Hangzhou Lihuan Environmental Group Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2023-05-09
Anticipated expiration: 2042-05-25
Also published as: CN115247449A

Abstract

The invention provides a rain and sewage diversion system (100) for realizing separate drainage of rain water and sewage, comprising: a plurality of groups of rainwater collecting assemblies (1) are arranged on the ground substrate; a shunt discharge assembly (10) disposed within the floor matrix; and a collecting pipe (2) which is communicated with the rainwater collecting assembly (1) and extends into the ground matrix. The split discharge assembly (10) includes: a shunt (14); a water inlet pipe (11) provided on one side of the flow divider (14); a sewage discharge pipe (15) provided on a different side of the flow divider (14) from the water intake pipe (11); and a rain water discharge pipe (16) provided on a side of the flow divider (14) different from the water intake pipe (11). The object of the present invention is to at least partly overcome the drawbacks of the prior art and to provide a rain and sewage diversion system. The rain and sewage diversion system can be applied to building entities sharing a drainage pipeline with rainwater and sewage, thereby realizing rain and sewage diversion and having low transformation cost.

Description

Rain and sewage diversion system

Technical Field

The invention relates to the technical field of drainage engineering, in particular to a rain and sewage diversion system.

Background

Rainwater and sewage are main objects of urban drainage engineering, municipal sewage is usually required to be sent to a sewage treatment plant for treatment through a municipal sewage pipeline and then is discharged, the municipal sewage cannot be directly discharged, the direct discharge can bring serious environmental pollution problems, and the rainwater is usually less in pollution components and can be directly discharged without sewage treatment. At present, a great deal of municipal drainage in China is mixed drainage without rain and sewage separation, for example, old communities of cities, and the problems caused by the mixed drainage are numerous, typically, rainwater enters municipal sewage pipelines, so that the sewage treatment burden is heavy and the cost is high, and on the other hand, the part of rainwater is not needed to be treated, and is one of reasons for insufficient drainage capacity of the cities in rainy seasons.

The most direct mode of rain and sewage separation is to drain rainwater and sewage through different pipelines, and the rainwater and the sewage are not mixed, but in practice, the rainwater and the sewage may be limited by a plurality of factors, and the rainwater and the sewage cannot be sufficiently separated, for example, the rainwater and the sewage cannot be transformed by the layout constraint of the existing building, or the pipeline separation cannot be realized in consideration of huge engineering quantity and high cost. Therefore, the technology that the rain sewage separation was realized through increasing rain sewage separation facility also a lot, for example, chinese patent application CN202110944036.5 discloses a municipal works rain sewage distribution system, including rain sewage distribution pipe, rain sewage distribution pipe includes rain water chamber and sewage chamber, the terminal surface of rain sewage distribution pipe one end is provided with the sewage inlet tube with sewage chamber intercommunication, the terminal surface that rain sewage distribution pipe kept away from sewage inlet tube one end is provided with the rainwater outlet pipe with the rainwater chamber intercommunication and the sewage outlet pipe with sewage chamber intercommunication, the top surface of rain sewage distribution pipe is provided with the inlet for water, be provided with the baffle between rain water chamber and the sewage chamber, movable groove has all been seted up to the lateral wall of rain sewage distribution pipe both sides, the both sides of baffle are located two movable grooves respectively, the side of baffle both sides all rigid coupling has the slide, the seal groove with the slide mutually supporting has been seted up to the lateral wall of movable groove both sides, the top and the bottom of slide all rigid coupling of slide have sealed pads, slide top and slide bottom all are provided with reset piece. The above-described rain and sewage diversion system is capable of adaptively diverting rain and sewage with a large amount of rain or sewage, but is only suitable for use before the mixing of rain and sewage, and there is a risk of mixing the rain and sewage.

Disclosure of Invention

The object of the present invention is to at least partly overcome the drawbacks of the prior art and to provide a rain and sewage diversion system.

The invention also aims to provide a rain and sewage diversion system which can be applied to building entities sharing a drainage pipeline with rainwater and sewage to realize rain and sewage diversion.

The invention also aims to provide a rain and sewage diversion system which can bring high rain and sewage separation effect with low reconstruction cost.

The invention also aims to provide a rain and sewage diversion system which is as simple in structure as possible and does not need a complex sensing and controlling device to realize rain and sewage diversion.

In order to achieve one of the above objects or purposes, the technical solution of the present invention is as follows:

a rain and sewage diversion system for achieving separate drainage of rain water and sewage, the rain and sewage diversion system comprising:

the rainwater collection assemblies are arranged on the ground substrate;

the split-flow discharge assembly is arranged inside the ground matrix; and

and the collecting pipeline is communicated with the rainwater collecting assembly and extends into the ground matrix.

According to a preferred embodiment of the present invention, the split discharge assembly comprises:

a shunt;

a water inlet conduit disposed on one side of the flow splitter in fluid communication with the flow splitter;

a sewage discharge pipe disposed on a side of the flow divider different from the water inlet pipe, in fluid communication with the flow divider; and

a rain water drain conduit disposed on a different side of the diverter than the water inlet conduit in fluid communication with the diverter.

According to a preferred embodiment of the present invention, a solid discharge portion is provided vertically above the diverter, and the diverting discharge assembly further includes a bypass pipe that communicates the inlet pipe with the solid discharge portion, and a communication position of the bypass pipe with the inlet pipe is higher than a communication position of the bypass pipe with the solid discharge portion;

a sieve plate is arranged at a position, close to the bypass pipeline, in the water inlet pipeline and is used for separating solid matters from water;

the diverter is internally provided with a high-level table top and a tapered groove lower than the high-level table top, the cross section of the tapered groove perpendicular to the longitudinal extension direction is in an inverted cone shape or an inverted trapezoid shape, the sewage discharge pipeline is in fluid communication with the tapered groove, and the rainwater discharge pipeline is in fluid communication with the upper part of the high-level table top; and is also provided with

A sealing component is arranged in the tapered groove and used for blocking the communication from the tapered groove to the sewage discharge pipeline; and a separation component is arranged above the high-level table top.

According to a preferred embodiment of the present invention, the downstream of the rainwater drainage pipe is connected to the rainwater guiding pipe and the recovery pipe by a three-way valve, and the three-way valve is configured to be changeable between a first state in which the rainwater drainage pipe and the rainwater guiding pipe are communicated while blocking communication of the rainwater drainage pipe to the recovery pipe, and a second state in which the rainwater drainage pipe and the recovery pipe are communicated while blocking communication of the rainwater drainage pipe to the rainwater guiding pipe.

According to a preferred embodiment of the invention, a filter valve core is arranged on a connecting pipeline at the downstream of the rainwater discharge pipeline and at the upstream of the three-way valve, a plurality of filter holes are arranged on the filter valve core, and the filter valve core is connected with a filter valve core control part outside the rainwater discharge pipeline;

the filter spool control portion is configured to enable the filter spool to change between a first state in which the transmission of solid impurities within the rain water drain pipe is blocked and a second state in which the rain water drain pipe is not blocked at all; and is also provided with

The filter valve core is disc-shaped, and the thickness of the middle part of the filter valve core is greater than the thickness of the peripheral edge of the filter valve core.

According to a preferred embodiment of the invention, a valve is provided in the bypass conduit connecting the inlet conduit with the solids discharge.

According to a preferred embodiment of the present invention, the solid material discharge portion includes:

the cylinder body is arranged in the connecting hole of the top wall of the shunt;

the rotating shaft is arranged in the cylinder;

auger blades arranged in the cylinder and on the periphery of the rotating shaft; and

a swivel arranged on the rotating shaft for rotating the auger blade to lift the solid,

the upper part of the cylinder body is provided with a discharge outlet, and the bottom wall of the cylinder body is provided with a plurality of water leakage holes.

According to a preferred embodiment of the invention, the closure assembly comprises:

a chute arranged on the inner wall of the diverter and close to the sewage discharge pipeline;

a cover configured to be slidable along the chute to communicate the tapered groove with the sewage discharge pipe or to block communication of the tapered groove to the sewage discharge pipe;

the support rod is arranged on the bottom wall of the tapered groove;

the lever comprises a base rod and a sleeve rod sleeved outside the base rod, the base rod is arranged on the sealing cover through a hinge part, and the sleeve rod is hinged on the supporting rod; and

the floating ball is arranged at one end of the loop bar far away from the base bar.

According to a preferred embodiment of the invention, the outer walls of the collecting pipe, the water inlet pipe, the sewage discharge pipe and/or the rainwater discharge pipe are coated with Shi Fangfu paint, and a protective sleeve is arranged outside the outer walls of the collecting pipe, the water inlet pipe, the sewage discharge pipe and/or the rainwater discharge pipe.

According to a preferred embodiment of the invention, a three-way pipe is arranged downstream of the connecting pipe, the inlet end of the three-way pipe is communicated with the connecting pipe, and the three-way pipe further comprises a first end and a second end;

the first end is connected with the rainwater guiding pipeline, and the second end is connected with the recycling pipeline.

According to a preferred embodiment of the invention, the partition assembly comprises:

the track is arranged on the inner wall of the flow divider, and the sliding direction of the track is a vertical direction;

a movable partition plate, on which a pulley is provided, the movable partition plate being configured to be slidable along the rail; and

and the suspension element is arranged on the movable partition plate.

The rainwater and sewage diversion system comprises a rainwater collecting component outside the foundation body and a diversion discharging component inside the foundation body, can be easily applied to building entities sharing a drainage pipeline by rainwater and sewage, for example, the old community is subjected to rainwater and sewage diversion transformation, only the rainwater collecting component and the diversion discharging component are needed to be added, and the rainwater collecting component can be based on the original rainwater collecting component of the community and only the diversion discharging component inside the foundation body is added. The diversion discharge assembly is utilized to separate rain and sewage, and independent rain water pipelines and sewage pipelines are not rearranged, so that the modification to the original building entity is small, the engineering quantity is small, and the restriction to the original building entity is also small, so that the diversion drainage assembly can be applied to a wider range of modification scenes.

The diversion discharge assembly of the rain and sewage diversion system can automatically separate rainwater and sewage by utilizing the diverter, can be used at the downstream of a rainwater and sewage shared pipeline, and can finish better rain and sewage separation by adopting a mechanical structure without a complex sensing and controlling device, thereby reducing the operation load of a sewage treatment plant at the downstream of sewage discharge, improving the sewage treatment efficiency, saving the sewage treatment cost and also increasing the flood fighting and drainage capacity of building entities. The discharged rainwater is light in pollution, can be directly discharged, can be used as natural landscape water through natural deposition, can also be used as municipal water, and meanwhile, the rainwater can flow into a river channel through purification and buffering, so that the application benefit of surface water can be improved.

According to the rain and sewage diversion system of the preferred embodiment of the invention, the screen plate is arranged on the water inlet pipeline, and solids separated by the screen plate are guided to the solids discharge part through the bypass pipeline, so that impurities of discharged water can be removed, meshes are prevented from being blocked, the filtering efficiency is improved, the rainwater discharge quality is prevented from being influenced, and the treatment capacity of a sewage treatment plant at the downstream can be reduced. Further, the downstream of the rainwater drainage pipeline is further provided with the filter valve core and the three-way valve, rainwater drainage quality is further improved through the filter valve core, flushing of the pipeline can be achieved, when the filter valve core is slightly blocked, the filter valve core can be located at a flushing position by means of cooperation of the filter valve core and the three-way valve, meanwhile, the rainwater guiding pipeline is closed to open the recovery pipeline, impurities on the filter valve core flow into the recovery pipeline, and internal blocking of the pipeline is prevented.

In addition, the rain and sewage diversion system also utilizes the anti-corrosion paint and the protective sleeve to protect related pipelines, and the service life of the whole rain and sewage diversion system is prolonged.

Drawings

FIG. 1 is a schematic diagram of a rain and sewage diversion system according to an embodiment of the present invention;

FIG. 2 is a perspective view of a diverter drain assembly of a rain and sewage diverter system according to an embodiment of the present invention;

FIG. 3 illustrates portions of components of a diverter drain assembly of a rain and sewage diverter system according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a diverter drain assembly of a rain and sewage diverter system according to an embodiment of the present invention;

FIG. 5 shows in enlarged cross-section the interior of the inlet and bypass conduits of the split-flow discharge assembly according to an embodiment of the invention;

FIG. 6 is a cross-sectional view of a solids discharge portion of a split stream discharge assembly according to an embodiment of the invention;

FIG. 7 is a perspective view of a solids discharge portion of a split stream discharge assembly according to an embodiment of the invention;

FIG. 8 illustrates an internal structure of a diverter discharge assembly according to an embodiment of the present invention;

FIG. 9 illustrates a closure assembly of a shunt according to an embodiment of the invention;

FIG. 10 is a perspective view of a closure assembly of a diverter according to an embodiment of the present invention;

FIG. 11 illustrates a divider assembly of a flow divider according to an embodiment of the present invention;

FIG. 12 illustrates in an enlarged view the separation assembly of the flow splitter in accordance with an embodiment of the invention, as it works away;

FIG. 13 illustrates a filter cartridge of a split drain assembly according to an embodiment of the invention;

FIG. 14 illustrates a filter cartridge and three-way valve of a split drain assembly in accordance with an embodiment of the present invention, wherein the filter cartridge and three-way valve are in a first operating position; and

FIG. 15 illustrates a filter cartridge and three-way valve of a split drain assembly in accordance with an embodiment of the present invention, wherein the filter cartridge and three-way valve are in a second operating position.

Detailed Description

Exemplary embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein the same or similar reference numerals denote the same or similar elements. Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in the drawings in order to simplify the drawings.

According to the present general inventive concept, there is provided a rain and sewage diversion system for achieving separate drainage of rain water and sewage, the rain and sewage diversion system including: the rainwater collection assemblies are arranged on the ground substrate; the split-flow discharge assembly is arranged inside the ground matrix; and a collecting pipe communicated with the rainwater collecting assembly and extending into the ground matrix.

As shown in fig. 1, which illustrates an embodiment of the rain and sewage diversion system of the present invention, the rain and sewage diversion system 100 mainly includes a rain water collecting assembly 1 and a diversion discharging assembly 10, the rain water collecting assembly 1 has a plurality of groups, and is constructed on a foundation body, for example, above a building entity to collect natural rain water, the present invention is not limited in its form and shape, fig. 1 illustrates only an exemplary form of the rain water collecting assembly 1, and it may have any other form as long as a rain water collecting function can be implemented. The existing rainwater collection assembly can also be utilized when the rainwater diversion modification of old building facilities is performed. The stormwater collecting assembly 1 is collected by means of collecting pipes 2, which collecting pipes 2 are attached below the stormwater collecting assembly 1, the number of collecting pipes 2 corresponding to the number of stormwater collecting assemblies 1, which collecting pipes 2 extend into a ground matrix, which is not shown in fig. 1. The rain and sewage diversion system 100 further comprises a collecting pipe 3, wherein the collecting pipe 3 is connected with a plurality of collecting pipes 2, and the rainwater is collected and guided to the pool 4 to be drained or directly drained. The split drain assembly 10 is present in parallel with the stormwater collection assembly 1 and is arranged inside the ground matrix.

The structure of the split-flow discharging assembly 10 will be described with reference to fig. 2, and the split-flow discharging assembly 10 includes a splitter 14, a water inlet pipe 11, a bypass pipe 12, a solid discharge 13, a sewage discharge pipe 15, and a rainwater discharge pipe 16. The diverter 14 is of a generally box-like structure surrounded by a housing or concreted, a water inlet conduit 11 is provided on one side of the diverter 14 in fluid communication with the diverter 14, a water inlet conduit aperture is left on that side of the diverter 14, the water inlet conduit 11 is provided on the water inlet conduit aperture, the upper end of the water inlet conduit 11 is connected with a rainwater-sewage mixing conduit, and rainwater and sewage enter the diverter 14 through the water inlet conduit 11 by gravity.

The sewage discharge conduit 15 is arranged on a different side of the flow divider 14 than the water inlet conduit 11, advantageously the sewage discharge conduit 15 is arranged on an adjacent side of the side on which the water inlet conduit 11 is arranged in fluid communication with the flow divider 14, the sewage discharge conduit 15 being arranged to discharge sewage exiting through the flow divider 14 directly for transport away, for example to a downstream sewage treatment plant. The stormwater discharge conduit 16 is also provided on a different side of the diverter 14 than the inlet conduit 11, in fluid communication with the diverter 14. It is preferable that the rain water discharge pipe 16 is provided on the opposite side of the side on which the water intake pipe 11 is provided, because a large amount of rain water needs to be discharged in a short time when it rains, and the rain water discharge pipe 16 is provided on the opposite side, the rain water entering from the water intake pipe 11 can flow directly to the rain water discharge pipe 16, and the rain water can be discharged more quickly.

The solid discharge portion 13 is disposed vertically above the diverter 14, the bypass pipe 12 communicates the water inlet pipe 11 with the solid discharge portion 13, and the communication position between the bypass pipe 12 and the water inlet pipe 11 is higher than the communication position between the bypass pipe 12 and the solid discharge portion 13, that is, the bypass pipe 12 is inclined downward toward the solid discharge portion 13, the bypass pipe 12 is used for guiding the solid discharge to the solid discharge portion 13, and the downward inclination can use gravity to transport the solid. The screen 34 is disposed in the water inlet pipe 11 near the bypass pipe 12 for separating solids from water, see fig. 4 and 5, the screen 34 is disposed obliquely, the edge of the side of the screen 34 near the bypass pipe 12 is lower than the edge of the side far away from the bypass pipe 12 in vertical height, the screen 34 has suitable screen holes, so that the water entering the water inlet pipe 11 falls into the diverter 14, the solids with diameters larger than the screen holes are intercepted, and under the impact of the subsequent water flow and the gravity action of the solids, the solids enter the bypass pipe 12 and then enter the solids discharge portion 13. A portion of the water flow may enter the bypass conduit 12, which facilitates the transport of solids to the solids discharge 13.

As a preferred embodiment, an additional screen plate is arranged in the water inlet pipeline 11 at a position close to the bypass pipeline 12, namely two screen plates are arranged, the lower edge of the screen plate 34 close to the bypass pipeline 12 is lower than the upper edge of the screen plate far from the bypass pipeline 12, and the lower edge of the screen plate 34 close to the bypass pipeline 12 is connected with the lower edge of the connecting ring of the water inlet pipeline 11 and the bypass pipeline 12; the additional screen is also placed obliquely, the edge of the side of the additional screen close to the by-pass duct 12 being lower in vertical height than the edge of the side remote from the by-pass duct 12, the additional screen being arranged above the screen 34, the screen openings of the additional screen being larger than the screen openings of the screen 34; the lower edge of the additional screen deck, which is close to the junction ring of the inlet conduit 11 and the bypass conduit 12, is located approximately in the centre of the junction ring of the inlet conduit 11 and the bypass conduit 12 in vertical height, and the angle between the extension axis of the inlet conduit 11 and the additional screen deck is larger than the angle between the extension axis of the inlet conduit 11 and the screen deck 34, i.e. the angle between the additional screen deck and the horizontal plane is smaller than the angle between the screen deck 34 and the horizontal plane, the gradient of the additional screen deck looks more gentle, and the extension axis of the screen deck 34 and the bypass conduit 12 are approximately parallel.

Such a design allows for better filtration of solids in the water, double filtration allows for more thorough filtration, additional screen panels first filter out larger impurities, downstream screen panels 34 filter out smaller impurities again, and because the larger impurities are heavier and directly impacted by the water, additional screen panels may be positioned more gently, while the small impurities are under their own weight, and the impact of the water flow on screen panels 34 has become smaller, and thus screen panels 34 are positioned more steeply.

Advantageously, a valve 21 is provided in the bypass conduit 12 connecting the inlet conduit 11 and the solids discharge portion 13, and the transfer of the bypass conduit 12 to the solids discharge portion 13 can be closed by the valve 21, and the valve 21 can be closed when discharging impurities from the solids discharge portion 13 or when servicing the solids discharge portion 13.

Above the solids discharge portion 13, a lifting portion 22 is provided, and one example of the lifting portion 22 is a combination of a swivel 37, a rotation shaft 36 and an auger blade 26, which will be described in detail later, through which lifting of the solids is achieved. The lifting part 22 is used for lifting the solid to discharge the solid from the discharge port 38, and may have other forms, for example, the lifting part 22 includes a motor, a controller, a rotating shaft 36 and a packing auger blade 26, the rotating shaft 36 is driven to rotate by the motor, the packing auger blade 26 is driven to rotate, the solid is lifted upwards, and the controller controls the operation of the motor, and the motor can be periodically started to periodically discharge the solid.

The downstream of the rain water discharge pipe 16 is connected with a rain water guide pipe 17 for discharging rain water to the pool 4 to be discharged or directly discharged and a recovery pipe 18 through a three-way valve 24, and the recovery pipe 18 is connected with a sewage discharge pipe 15 for discharging impurities, solids, etc. to the sewage discharge pipe 15. The three-way valve 24 is configured to be changeable between a first state in which the rainwater discharge pipe 16 and the rainwater guide pipe 17 are communicated while blocking communication of the rainwater discharge pipe 16 to the recovery pipe 18, and a second state in which the rainwater discharge pipe 16 and the recovery pipe 18 are communicated while blocking communication of the rainwater discharge pipe 16 to the rainwater guide pipe 17. A filter core 39 is arranged on a connecting pipeline 55 at the downstream of the rainwater discharge pipeline 16 and at the upstream of the three-way valve 24, a plurality of filter holes 54 are arranged on the filter core 39, and the filter core 39 is connected with a filter core control part 23 outside the rainwater discharge pipeline 16; the filter element control portion 23 is configured to enable the filter element 39 to be changed between a first state in which the transmission of solid impurities within the rain water drain pipe 16 is blocked and a second state in which the rain water drain pipe 16 is not blocked at all; and the filter core 39 is disc-shaped, and the thickness of the middle part of the filter core 39 is larger than that of the peripheral edge of the filter core 39. The filter element 39 and the three-way valve 24 are cooperatively operated to filter rainwater in a first state, to allow rainwater to drain through the filter element 39 to the rainwater guide pipe 17 while retaining impurities and solids, and intermittently operated in a second state in which the impurities and solids retained on the filter element 39 are washed out by the rainwater and discharged to the recovery pipe 18 and the sewage discharge pipe 15 without being discharged to the rainwater guide pipe 17.

In the following description of this process in connection with fig. 4, 14 and 15, it is noted that the rainwater diverted through the diverter 14 is discharged from the rainwater discharge pipe 16, and the downstream of the rainwater discharge pipe 16 is connected to the connecting pipe 55 and then to the tee pipe, the inlet end of which is in communication with the connecting pipe 55, and the tee pipe further includes a first end 56 and a second end 57, the first end 56 being connected to the rainwater guiding pipe 17, and the second end 57 being connected to the recovery pipe 18. In the first state, as shown in fig. 14, a rainwater circulation state is shown in which the filter element 39 and the three-way valve 24 are located at the first operating position, the filter element 39 is crossing the connection pipe 55, but since the filter element has the filter hole 54, rainwater can pass through the filter element, and the three-way valve 24 communicates the rainwater discharge pipe 16 and the rainwater guide pipe 17 to block communication of the rainwater discharge pipe 16 to the recovery pipe 18, so that filtered rainwater enters the rainwater guide pipe 17 without entering the sewage discharge pipe 15. The filter element 39 is structured with a thick middle edge and a thin middle edge, and impurities are trapped on the left side of the filter element 39, accumulate toward the edge of the filter element, and do not shade the middle of the filter element 39. In the second state, as shown in fig. 15, in the filter cartridge cleaning state, the filter cartridge 39 is rotated under the control of the filter cartridge control section 23, and the three-way valve 24 communicates the rainwater discharge pipe 16 and the recovery pipe 18 to block the communication of the rainwater discharge pipe 16 to the rainwater guide pipe 17, so that the foreign substances accumulated on the edge of the filter cartridge 39 are washed by rainwater toward the recovery pipe 18, thereby cleaning the filter cartridge 39.

The filter cartridge control 23 and the three-way valve 24 are preferably electrically operated valves and operate under the control of a controller that can control them to operate in synchronization and periodically open, switch or close to periodically clean the filter cartridge 39.

As an example, the solid material discharge portion 13 includes: a cylinder disposed in the connection hole 25 of the top wall of the flow divider 14; a rotating shaft 36 arranged in the cylinder; auger blade 26 disposed in the cylinder on the outer periphery of rotary shaft 36; and a swivel 37 provided on the rotation shaft 36 for rotating the auger blade 26 to lift the solids, wherein the upper portion of the cylinder is provided with a discharge port 38, and the bottom wall of the cylinder is provided with a plurality of water leakage holes 27, and the solids discharge portion 13 is connected to the upstream bypass pipe 12 through a connection flange 35. With the above arrangement, the swivel 37 can be rotated to rotate the auger blade 26, so that the solid is lifted along the auger blade 26 and discharged from the discharge port 38. In this example, manual rotation of the swivel 37 is required to expel the solids, and automatic, periodic expulsion of the solids can be achieved if the swivel 37 is replaced by a motor controlled by a controller.

Referring to fig. 8-12, the internal structure of the shunt 14 is described below. The splitter 14 is provided with a high-level table top 32 and a tapered groove 31 lower than the high-level table top 32, a cross section of the tapered groove 31 perpendicular to the longitudinal extending direction is in an inverted cone shape or an inverted trapezoid shape, the sewage discharge pipeline 15 is in fluid communication with the tapered groove 31, the rainwater discharge pipeline 16 is in fluid communication with the upper side of the high-level table top 32, and the longitudinal extending direction of the tapered groove 31 is perpendicular to the water inlet direction. A sealing component is arranged in the tapered groove 31 and used for blocking the communication between the tapered groove 31 and the sewage discharge pipeline 15; a separation assembly is provided above the high table 32.

The closure assembly includes: a chute 42 provided on the inner wall of the flow divider 14 near the sewage discharge pipe 15, the chute 42 being defined by strips or protrusions provided on the inner wall, the chute 42 being symmetrically provided in two; a cover 41 configured to be slidable along the chute 42 to communicate the tapered groove 31 with the sewage discharge pipe 15 or to block communication of the tapered groove 31 to the sewage discharge pipe 15, the cover 41 being a rectangular plate; a strut 43 disposed on the bottom wall of the tapered slot 31, the vertical upper end of the strut 43 extending out of two parallel sub-branches; the lever 44 comprises a base rod 49 and a sleeve rod 50 sleeved outside the base rod 49, the base rod 49 is arranged on the sealing cover 41 through a hinge part 48, and the sleeve rod 50 is hinged on the supporting rod 43; and a float ball 45 provided on an end of the loop bar 50 remote from the base bar 49.

The closure assembly works as follows: when there is no water or only a small amount of water in the tapered groove 31, the float ball 45 is in a low position, the cover 41 is in a high position, and at this time, the inlet of the sewage discharge pipe 15 is not closed by the cover 41, so that sewage can be discharged through the sewage discharge pipe 15; when a large amount of rainwater is poured into the tapered groove 31 for a short time, the floating ball 45 floats under the buoyancy of the water to drive the sealing cover 41 to slide down the sliding groove 42, so that the inlet of the sewage discharge pipeline 15 is closed, and at this time, the sewage cannot be discharged through the inlet of the sewage discharge pipeline 15.

The partition assembly includes: the rails 46 are arranged on the inner wall of the splitter 14, the sliding direction of the rails 46 is the vertical direction, the rails 46 are symmetrically provided with a pair, each rail 46 is formed by two parallel juxtaposed strip-shaped plates, each strip-shaped plate is provided with a step, the strip-shaped plates are perpendicular to the wall surface of the splitter 14, the thickness of the strip-shaped plates close to the wall surface is smaller than the thickness of the strip-shaped plates far away from the wall surface end, and accordingly a groove with a deepened width is formed at the wall surface of the rails 46 close to the splitter 14; a movable partition 33, the movable partition 33 being provided with a pulley 51, the pulley 51 being provided in the groove, the movable partition 33 being configured to be slidable along the rail 46; and suspension elements 47 provided on the movable partition 33, in this embodiment, the suspension elements 47 may be pontoons, divided into two groups, respectively provided on both sides of the movable partition 33, and a group of suspension assemblies on each side are sequentially arranged.

When sewage enters from the water inlet pipeline 11, the sewage is intermittently discharged into the flow divider 14, and can be timely taken through the inlet of the sewage discharge pipeline 15 and does not accumulate in a great amount in the tapered groove 31, so that the water level in the tapered groove 31 is not too high, and the sewage level is not too high on the high table 32; when raining, a large amount of rainwater flows into the water inlet pipeline 11 in a short time and continuously flows into the water inlet pipeline, so that part of rainwater is discharged from the sewage discharge pipeline 15 in the beginning, but due to the characteristic of persistence and large amount of rainwater, the tapered groove 31 can be quickly filled with rainwater, the floating ball 45 can float under buoyancy, the control cover 41 seals the inlet of the sewage discharge pipeline 15, and gradually, the rainwater in the diverter 14 is over-high on the table 32, so that the rainwater is not discharged through the sewage discharge pipeline 15 any more, but is sought to be discharged through the rainwater discharge pipeline 16. The function of the partition assembly is that it will float with the water level, so that, initially, the movable partition 33 is resting against the high-level table 32, the water level gradually rises due to the closing of the sewage discharge duct 15, the movable partition 33 gradually lifts up under the influence of the suspension element 47, so that a gap is formed between the movable partition 33 and the high-level table 32, at which time rainwater will flow through the gap to the rainwater discharge duct 16; the separation assembly also has the function that a gap is kept between the movable partition 33 and the high-level table top 32 all the time, but the water level surface is always between the upper end and the lower end of the movable partition 33 and is always blocked by the movable partition 33, so that a small amount of greasy dirt entrained in rainwater can be layered as shown in fig. 12, the upper layer is the greasy dirt layer 53, the lower layer is the rainwater 52, the greasy dirt layer 53 is blocked by the movable partition 33 and cannot flow to the rainwater discharge pipeline 16, only the rainwater 52 at the lower layer can flow to the rainwater discharge pipeline 16, and therefore, the separation assembly plays a role of blocking the greasy dirt. When the rainwater is removed, the greasy dirt layer 53 is also blocked by the movable partition 33 all the time until the movable partition 33 descends onto the high-level table-board 32 and then falls into the tapered groove 31.

The rainwater discharged from the rainwater discharge pipe 16, if containing solids, may be filtered by a downstream filter element 39. In addition, further water treatment devices or processes may be provided downstream of the stormwater discharge conduit 16 to improve the quality of the stormwater discharged from the stormwater discharge conduit 16.

In a further example, a flexible spacer cloth is provided above the movable partition 33, the lower end of the flexible spacer cloth being attached to the upper end of the movable partition 33, the upper end of the flexible spacer cloth being attached to the top wall of the flow divider 14, so that the movable partition 33 can move up and down, the upper end of which always prevents the upper surface of the water in the flow divider 14 from flowing to the rainwater discharge pipe 16, while only allowing the lower water to flow to the rainwater discharge pipe 16, which avoids the problem that the movable partition 33 cannot prevent the flow of the upper surface of the water when the rainwater floods into the flow divider 14 too much for a short time, or because the movable partition 33 is stuck.

In an alternative, the movable partition 33 is provided with a suspension element 47 only on the side facing the inlet of the water intake pipe 11 and no suspension element 47 on the side facing away from the inlet of the water intake pipe 11, and additionally, a pontoon arranged in the vertical direction is provided at a position of the movable partition 33 near the pulley 51 to keep the movable partition 33 balanced within the track 46, preventing the pulley 51 from jamming.

According to a preferred embodiment of the invention, the outer walls of the collecting pipe 2, the water inlet pipe 11, the sewage discharge pipe 15 and/or the rainwater discharge pipe 16 are coated with Shi Fangfu paint, and a protective sleeve is arranged outside the outer walls of the collecting pipe 2, the water inlet pipe 11, the sewage discharge pipe 15 and/or the rainwater discharge pipe 16. In addition, the inlet pipe 11, the bypass pipe 12, the sewage discharge pipe 15, the rainwater discharge pipe 16, the rainwater guide pipe 17 and the recovery pipe 18 of the present invention are all of a drop type design, and backflow is prevented.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention. The scope of applicability of the present invention is defined by the appended claims and equivalents thereof.

List of reference numerals:

100. rain and sewage diversion system

1. Rainwater collection assembly

2. Collecting pipeline

3. Collecting pipeline

4. Pool to be discharged

10. Split discharge assembly

11. Water inlet pipeline

12. Bypass pipeline

13. Solid material discharge portion

14. Flow divider

15. Sewage discharge pipeline

16. Rainwater drainage pipe

17. Rainwater guide pipeline

18. Recovery pipeline

21. Valve

22. Lifting part

23. Filter valve core control part

24. Three-way valve

25. Connecting hole

26. Auger blade

27. Water leakage hole

31. Tapered groove

32. High table top

33. Movable partition board

34. Sieve plate

35. Connecting flange

36. Rotating shaft

37. Swivel ring

38. Discharge outlet

39. Filter valve core

41. Sealing cover

42. Sliding chute

43. Support rod

44. Lever

45. Floating ball

46. Rail track

47. Suspension element

48. Hinge part

49. Base rod

50. Sleeve rod

51. Pulley wheel

52. Rainwater

53. Oil stain layer

54. Filter hole

55. Connecting pipeline

56. First end

57. A second end.

Claims

1. A rain and sewage diversion system (100) for achieving separate drainage of rain water and sewage, the rain and sewage diversion system (100) comprising:

a plurality of groups of rainwater collecting assemblies (1) are arranged on the ground substrate;

a shunt discharge assembly (10) disposed within the floor matrix; and

a collecting pipe (2) which is communicated with the rainwater collecting assembly (1) and extends into the ground matrix;

the split discharge assembly (10) includes:

a shunt (14);

a water inlet conduit (11) disposed on one side of the diverter (14) in fluid communication with the diverter (14);

a sewage discharge pipe (15) provided on a side of the flow divider (14) different from the water inlet pipe (11), in fluid communication with the flow divider (14); and

a rain water discharge pipe (16) provided on a different side of the diverter (14) from the water intake pipe (11) in fluid communication with the diverter (14);

a solid discharge part (13) is arranged vertically above the diverter (14), and the diverter discharge assembly (10) further comprises a bypass pipeline (12), the bypass pipeline (12) is communicated with the water inlet pipeline (11) and the solid discharge part (13), and the communication position of the bypass pipeline (12) and the water inlet pipeline (11) is higher than the communication position of the bypass pipeline (12) and the solid discharge part (13);

a sieve plate (34) is arranged in the water inlet pipeline (11) and close to the bypass pipeline (12) for separating solid matters from water;

a high-level table top (32) and a tapered groove (31) lower than the high-level table top (32) are arranged in the flow divider (14), the cross section of the tapered groove (31) perpendicular to the longitudinal extending direction is in an inverted cone shape or an inverted trapezoid shape, the sewage discharge pipeline (15) is in fluid communication with the tapered groove (31), and the rainwater discharge pipeline (16) is in fluid communication with the upper part of the high-level table top (32); and is also provided with

A sealing component is arranged in the tapered groove (31) and used for blocking the communication from the tapered groove (31) to the sewage discharge pipeline (15); a separation component is arranged above the high-level table top (32);

the downstream of the rainwater drainage pipe (16) is connected with the rainwater guiding pipe (17) and the recovery pipe (18) through a three-way valve (24), and the three-way valve (24) is configured to be capable of changing between a first state in which the rainwater drainage pipe (16) and the rainwater guiding pipe (17) are communicated while blocking communication of the rainwater drainage pipe (16) to the recovery pipe (18) and a second state in which the rainwater drainage pipe (16) and the recovery pipe (18) are communicated while blocking communication of the rainwater drainage pipe (16) to the rainwater guiding pipe (17);

a filter valve core (39) is arranged on a connecting pipeline (55) at the downstream of the rainwater discharge pipeline (16) and at the upstream of the three-way valve (24), a plurality of filter holes (54) are formed in the filter valve core (39), and the filter valve core (39) is connected with a filter valve core control part (23) outside the rainwater discharge pipeline (16);

the filter cartridge control section (23) is configured to be able to change the filter cartridge (39) between a first state in which the transmission of solid impurities within the rainwater drainage pipe (16) is blocked and a second state in which the rainwater drainage pipe (16) is not blocked at all; and is also provided with

The filter valve core (39) is disc-shaped, and the thickness of the middle part of the filter valve core (39) is larger than that of the peripheral edge of the filter valve core (39);

a valve (21) is arranged on a bypass pipeline (12) which is communicated with the water inlet pipeline (11) and the solid discharge part (13);

the solid material discharge unit (13) comprises:

a cylinder body arranged in a connecting hole (25) of the top wall of the shunt (14);

a rotating shaft (36) disposed in the cylinder;

an auger blade (26) disposed in the cylinder and on the outer periphery of the rotating shaft (36); and

a swivel (37) provided on the rotation shaft (36) for rotating the auger blade (26) to lift the solid,

wherein, the upper part of the cylinder is provided with a discharge outlet (38), and the bottom wall of the cylinder is provided with a plurality of water leakage holes (27);

the closure assembly includes:

a chute (42) arranged on the inner wall of the diverter (14) and close to the sewage discharge pipeline (15);

a cover (41) configured to be slidable along the chute (42) to communicate the tapered groove (31) with the sewage discharge pipe (15) or to block communication of the tapered groove (31) to the sewage discharge pipe (15);

a strut (43) disposed on the bottom wall of the tapered slot (31);

the lever (44) comprises a base rod (49) and a sleeve rod (50) sleeved outside the base rod (49), the base rod (49) is arranged on the sealing cover (41) through a hinge part (48), and the sleeve rod (50) is hinged on the supporting rod (43); and

the floating ball (45) is arranged on one end of the loop bar (50) far away from the base bar (49).

2. The rain and sewage diversion system (100) according to claim 1, wherein:

the outer walls of the collecting pipeline (2), the water inlet pipeline (11), the sewage discharge pipeline (15) and/or the rainwater discharge pipeline (16) are coated with Shi Fangfu paint, and a protective sleeve is arranged outside the outer walls of the collecting pipeline (2), the water inlet pipeline (11), the sewage discharge pipeline (15) and/or the rainwater discharge pipeline (16).

3. The rain and sewage diversion system (100) according to claim 1, wherein:

a three-way pipeline is arranged at the downstream of the connecting pipeline (55), the inlet end of the three-way pipeline is communicated with the connecting pipeline (55), and the three-way pipeline further comprises a first end (56) and a second end (57);

the first end (56) is connected to a stormwater guiding conduit (17) and the second end (57) is connected to a recovery conduit (18).