CN115247449A

CN115247449A - Rain and sewage diversion system

Info

Publication number: CN115247449A
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: 2022-10-28
Anticipated expiration: 2042-05-25
Also published as: CN115247449B

Abstract

The invention provides a rainwater and sewage diversion system (100) for realizing the separated discharge of rainwater and sewage, comprising: the rainwater collecting assemblies (1) are arranged on the ground base body; the flow dividing and discharging assembly (10) is arranged inside the ground base body; and the collecting pipeline (2) is communicated with the rainwater collecting component (1) and extends into the ground base body. The split flow discharge assembly (10) comprises: a flow divider (14); a water inlet pipe (11) disposed on one side of the diverter (14); a sewage discharge pipe (15) provided on a different side of the diverter (14) from the water inlet pipe (11); and a rainwater drain conduit (16) provided on a different side of the diverter (14) from the water inlet conduit (11). It is an object of the present invention to at least partially overcome the disadvantages of the prior art and to provide a rain and sewage diversion system. The rain and sewage diversion system can be applied to a building entity with a drainage pipeline shared by rainwater and sewage, realizes rain and sewage diversion, and is low in 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 the main object of municipal drainage engineering, and municipal sewage usually need be delivered to sewage treatment plant through municipal sewage pipe and is handled the back and discharge again, and can not directly discharge, and direct discharge can bring serious environmental pollution problem, and the rainwater is usually contaminated composition less, can directly discharge through sewage treatment not. At present, china still has a large amount of municipal drainage which is mixed drainage without rain and sewage separation, such as old districts of cities, and the problems caused by the mixed drainage are many, typically, rainwater enters a municipal sewage pipeline, so that the sewage treatment is heavy in burden and high in cost, because the part of rainwater does not need sewage treatment, on the other hand, the rainwater is one of the reasons for insufficient drainage capacity of cities in rainy seasons.

The most direct way of separating rain and sewage is to discharge rain and sewage through different pipelines, which are not mixed, but in practice, the rain and sewage may be limited by many factors, which cannot be fully realized, for example, the pipeline separation cannot be modified due to the layout constraint of the existing building, or the pipeline separation cannot be realized due to the large amount of engineering and high cost. Therefore, prior art also has a lot of techniques that realize the dirty separation of rain through increasing the dirty separation facility of rain, for example chinese patent application CN202110944036.5 discloses a municipal works distribution of rain and sewage system, including the dirty shunt tubes of rain, the dirty shunt tubes of rain includes rainwater chamber and sewage chamber, the terminal surface of dirty shunt tubes one end of rain is provided with the sewage inlet tube with sewage chamber intercommunication, the terminal surface that sewage inlet tube one end was kept away from to the dirty shunt tubes of rain is provided with the rainwater outlet pipe with rainwater chamber intercommunication and the sewage outlet pipe with sewage chamber intercommunication, the top surface of dirty shunt tubes of rain is provided with the inlet for stom water, be provided with the baffle between rainwater chamber and the sewage chamber, the activity groove has all been seted up to the shunt tubes both sides lateral wall of rain, the both sides of baffle are located two activity inslots respectively, the equal rigid coupling in side of baffle both sides has the slide, the seal groove of mutually supporting with the slide is seted up to the lateral wall of activity groove both sides, the top of slide and the equal rigid coupling in bottom of slide have sealed the pad, the top and the bottom of slide all are provided with the piece that resets. Although the rain and sewage diversion system can adapt to the rain and sewage diversion with large rainfall or large sewage, the rain and sewage diversion system is only suitable for the rain and sewage before the rain and the sewage are not mixed, and the risk of mixing the rain and the sewage exists.

Disclosure of Invention

It is an object of the present invention to at least partially overcome the disadvantages 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 a building entity of a drainage pipeline shared by rain and sewage to realize rain and sewage diversion.

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

It is also an object of the present invention to provide a rain and sewage diversion system that relies as much as possible on a simple structure and does not require complex sensing and control devices to achieve the diversion of rain and sewage.

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

a distribution system for rainwater and sewage for enabling separate drainage of rainwater and sewage, the distribution system comprising:

the multiple groups of rainwater collecting assemblies are arranged on the ground substrate;

the shunt discharge assembly is arranged inside the ground base body; and

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

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

a flow divider;

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

a sewage discharge conduit disposed on a different side of the diverter from the water inlet conduit, in fluid communication with the diverter; and

a rainwater 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 material discharging portion is disposed vertically above the flow divider, and the flow divider discharging assembly further includes a bypass pipe, the bypass pipe communicates the water inlet pipe with the solid material discharging portion, and a communication position of the bypass pipe and the water inlet pipe is higher than a communication position of the bypass pipe and the solid material discharging portion;

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

the flow divider is internally provided with a high-position table board and a reducing groove lower than the high-position table board, the section of the reducing groove vertical to the longitudinal extension direction is in an inverted cone shape or an inverted trapezoid shape, the sewage discharge pipeline is communicated with the reducing groove in a fluid mode, and the rainwater discharge pipeline is communicated with the upper portion of the high-position table board in a fluid mode; and is

A closed component is arranged in the gradually-reducing groove and used for blocking the communication from the gradually-reducing groove to a sewage discharge pipeline; and a separation component is arranged above the high-position table top.

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

According to a preferred embodiment of the present invention, a filter valve core is arranged on the connecting pipeline at the downstream of the rainwater drainage 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 drainage pipeline;

the filter cartridge control portion is configured to enable the filter cartridge to change between a first state of blocking transmission of solid impurities within the rainwater drain conduit and a second state of not blocking the rainwater drain conduit at all; and is provided with

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

According to a preferred embodiment of the present invention, a valve is provided in the bypass line connecting the inlet line and the solid discharge unit.

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

the cylinder is arranged in the connecting hole of the top wall of the flow divider;

the rotating shaft is arranged in the cylinder body;

the auger blade is arranged in the cylinder body and on the periphery of the rotating shaft; and

a rotating ring arranged on the rotating shaft and used for rotating the auger blades to lift solid matters,

the upper part of the cylinder body is provided with a discharge port, 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 disposed on an inner wall of the diverter and adjacent to the sewage discharge pipe;

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

the support rod is arranged on the bottom wall of the reducing 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 hinged part, and the sleeve rod is hinged on the supporting rod; and

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

According to a preferred embodiment of the present invention, the outer wall of the collection pipe, the water inlet pipe, the sewage discharge pipe and/or the rainwater discharge pipe is coated with an anticorrosive paint, and a protective sleeve is disposed outside the outer wall of the collection pipe, the water inlet pipe, the sewage discharge pipe and/or the rainwater discharge pipe.

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

the first end is connected with a rainwater guide pipeline, and the second end is connected with a recovery pipeline.

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

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

the movable partition plate is provided with a pulley and is configured to slide 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 and drainage component inside the foundation body, and can be easily applied to a building entity of a drainage pipeline shared by rainwater and sewage, for example, rainwater and sewage diversion transformation is carried out on an old district, only the rainwater collecting component and the diversion and drainage component need to be added, and the rainwater collecting component can be based on the original rainwater collecting component of the district, and only the diversion and drainage component inside the foundation body is added. The rainwater and sewage are separated by utilizing the shunting discharge assembly instead of rearranging an independent rainwater pipeline and a sewage pipeline, the original building entity is little changed, the engineering quantity is small, and the restriction of the original building entity is small, so that the method can be applied to a wider range of reconstruction scenes.

The distribution discharge assembly of the rain and sewage distribution system automatically separates rainwater and sewage by utilizing the distributor, can be used at the downstream of a rainwater and sewage shared pipeline, and can complete better rain and sewage separation by only adopting a mechanical structure without a complex sensing and control device, thereby lightening 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 resistance and waterlogging drainage capability of a building entity. The discharged rainwater is light in pollution, can be directly discharged and can be used as natural landscape water or urban municipal water through natural deposition, 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 provided by the preferred embodiment of the invention, the sieve plate is arranged on the water inlet pipeline, and the solid matters separated by the sieve plate are guided to the solid matter discharge part through the bypass pipeline, so that impurities in 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 downstream sewage treatment plant can be reduced. Further, still set up filter valve core and three-way valve in rainwater drainage pipeline's low reaches, further improve the rainwater drainage quality through filter valve core to can realize washing of pipeline, when filter valve core slightly blocks, can utilize filter valve core and three-way valve's cooperation, make filter valve core be in and wash the position, close rainwater guide pipeline simultaneously and open the recovery pipeline, make the impurity on the filter valve core flow in the recovery pipeline, prevent the inside jam of pipeline.

In addition, the rain and sewage diversion system also protects related pipelines by using anticorrosive paint and protective sleeves, and the service life of the whole rain and sewage diversion system is prolonged.

Drawings

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

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

FIG. 3 illustrates a portion of the components of a diversion drainage assembly of a rain and sewage diversion system according to an embodiment of the present invention;

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

FIG. 5 illustrates, in an enlarged cross-sectional view, the interior of the inlet conduit and the bypass conduit of the split discharge assembly in accordance with an embodiment of the present invention;

fig. 6 is a sectional view of a solids discharge portion of the diversion discharge assembly according to an embodiment of the present invention;

fig. 7 is a perspective view of a solids discharge portion of the diversion discharge assembly according to an embodiment of the present invention;

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

FIG. 9 illustrates a closure assembly for a flow diverter according to an embodiment of the present invention;

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

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

FIG. 12 illustrates in an enlarged view the working distance of the divider assembly of the flow splitter in accordance with an embodiment of the present invention;

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

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

fig. 15 illustrates a filter cartridge and a three-way valve of the split discharge assembly with the filter cartridge and the three-way valve in a second operating position according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the invention will hereinafter be described in detail with reference to the drawings, wherein like or similar designations denote like 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 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 diagram form to simplify the drawing.

According to the present general inventive concept, there is provided a rainwater and sewage separation system for achieving separate discharge of rainwater and sewage, the rainwater and sewage separation system including: the rainwater collecting assemblies are arranged on the ground substrate; the shunt discharge assembly is arranged inside the ground base body; and the collecting pipeline is communicated with the rainwater collecting assembly and extends into the ground base body.

As shown in fig. 1, showing an embodiment of the rainwater and sewage diversion system of the present invention, the rainwater and sewage diversion system 100 mainly includes a rainwater collection assembly 1 and a diversion drainage assembly 10, the rainwater collection assembly 1 has a plurality of groups, it is constructed on the ground substrate, for example, above the building entity, to collect the natural rainwater, the present invention does not limit its form and shape, fig. 1 only shows the form of the rainwater collection assembly 1 by way of example, it may have any other form as long as it can achieve the rainwater collection function. When the rainwater diversion transformation of old building facilities is carried out, the existing rainwater collection assembly can also be utilized. The rainwater collecting assembly 1 is collected by means of collecting pipes 2, which collecting pipes 2 are attached below the rainwater collecting assembly 1, the number of collecting pipes 2 corresponding to the number of rainwater collecting assemblies 1, the collecting pipes 2 extending through a ground base, not shown in fig. 1. The distribution system 100 further comprises a collection pipe 3, and the collection pipe 3 is connected with a plurality of collection pipes 2 to collect and guide the rainwater to the to-be-drained-pool 4 or directly drain the rainwater. The diversion drainage assembly 10 is arranged in parallel with the rainwater collection assembly 1 and is arranged inside the ground base body.

Referring to fig. 2, the structure of the diversion and drainage assembly 10 will be described, and the diversion and drainage assembly 10 includes a diverter 14, a water inlet pipe 11, a bypass pipe 12, a solid matter discharge part 13, a sewage drainage pipe 15, and a rainwater drainage pipe 16. The diverter 14 is roughly a box structure, is surrounded by the casing or by concrete placement, and the inlet channel 11 sets up on one side of diverter 14, with diverter 14 fluid communication, leaves the inlet channel hole on this side of diverter 14, and inlet channel 11 sets up on the inlet channel hole, and the upper end and the rainwater sewage hybrid piping of inlet channel 11 are connected, and rainwater and sewage utilize gravity to get into diverter 14 through inlet channel 11.

A sewage discharge conduit 15 is arranged on a different side of the flow diverter 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 diverter 14, the sewage discharge conduit 15 being intended to discharge sewage exiting the flow diverter 14, directly for transport away, for example to a downstream sewage treatment plant. A storm drain 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 rainwater drain pipes 16 are provided on the opposite side to the side where the water inlet pipe 11 is provided because a large amount of rainwater needs to be drained in a short time when it rains, and the rainwater drain pipes 16 are provided on the opposite side, and rainwater introduced from the water inlet pipe 11 can directly flow to the rainwater drain pipes 16, and rainwater can be drained more quickly.

The solid material discharge portion 13 is disposed vertically above the flow divider 14, the bypass pipe 12 communicates the water inlet pipe 11 and the solid material discharge portion 13, and a communication position between the bypass pipe 12 and the water inlet pipe 11 is higher than a communication position between the bypass pipe 12 and the solid material discharge portion 13, that is, the bypass pipe 12 is inclined downward toward the solid material discharge portion 13, and the bypass pipe 12 is used for guiding the solid material to be discharged toward the solid material discharge portion 13, and the inclined downward direction can use gravity to transport the solid material. The position close to the bypass pipe 12 in the water inlet pipe 11 is provided with a sieve plate 34 for separating solid and water, referring to fig. 4 and 5, the sieve plate 34 is obliquely arranged, the edge of one side of the sieve plate 34 close to the bypass pipe 12 is lower than the edge of one side far away from the bypass pipe 12 in vertical height, the sieve plate 34 is provided with a proper sieve hole, the water entering the water inlet pipe 11 can fall into the flow divider 14, the solid with the diameter larger than the pore diameter of the sieve hole is intercepted, and enters the bypass pipe 12 under the impact of subsequent water flow and the gravity of the solid, and then enters the solid discharge part 13. Part of the water can enter the bypass pipe 12, which is beneficial to the solid material delivery part 13.

As a preferred embodiment, an additional screen plate is further arranged in the water inlet pipe 11 at a position close to the bypass pipe 12, that is, two screen plates are arranged, the lower edge of the screen plate 34 close to the bypass pipe 12 is lower than the upper edge of the screen plate far away from the bypass pipe 12, and the lower edge of the screen plate 34 close to the bypass pipe 12 is connected with the lower edges of the connected rings of the water inlet pipe 11 and the bypass pipe 12; the additional sieve plate is also obliquely arranged, the edge of one side of the additional sieve plate close to the bypass pipeline 12 is lower than the edge of one side far away from the bypass pipeline 12 in vertical height, the additional sieve plate is arranged above the sieve plate 34, and the sieve holes of the additional sieve plate are larger than the sieve holes of the sieve plate 34; the lower edge of the additional screen deck, which is close to the bypass conduit 12, is located approximately in the centre of the adjoining rings of the inlet conduit 11 and the bypass conduit 12 in vertical height, and the angle between the axis of extension of the inlet conduit 11 and the additional screen deck is larger than the angle between the axis of extension 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 slope of the additional screen deck appears more gentle and the screen deck 34 is approximately parallel to the axis of extension of the bypass conduit 12.

Such a design can better filter solids in the water, double filtration makes the filtration more thorough, the additional screen deck filters out larger impurities first, the screen deck 34 downstream filters out smaller impurities again, and because larger impurities are heavier and directly impacted by the water, the additional screen deck can be set more gently, and the small impurities are under their own weight, and the impact force of the water flow is already reduced on the screen deck 34, and therefore, the screen deck 34 is set more steeply.

Advantageously, a valve 21 is provided in the bypass pipe 12 connecting the inlet pipe 11 and the solid material discharge portion 13, and the valve 21 can close the transfer of the bypass pipe 12 to the solid material discharge portion 13, and the valve 21 can be closed when discharging impurities from the solid material discharge portion 13 or when repairing the solid material discharge portion 13.

A lifting part 22 is provided above the solid material discharge part 13, and one example of the lifting part 22 is a combination of a rotary ring 37, a rotary shaft 36, and a screw blade 26, which will be described in detail later, by which lifting of the solid material is achieved. The elevator 22 is used to elevate the solids to discharge the solids from the discharge outlet 38 and can have other forms, for example, the elevator 22 includes a motor, a controller, a shaft 36 and an auger blade 26, the shaft 36 is driven by the motor to rotate, the auger blade 26 is driven to rotate, the solids are elevated upward, and the controller controls the operation of the motor, which can be periodically activated to periodically discharge the solids.

The downstream of the rainwater discharge pipeline 16 is connected with a rainwater guide pipeline 17 and a recovery pipeline 18 through a three-way valve 24, the rainwater guide pipeline 17 is used for discharging rainwater to the to-be-discharged pool 4 or directly discharging the rainwater, and the recovery pipeline 18 is connected with a sewage discharge pipeline 15 and is used for discharging impurities, solid matters and the like to the sewage discharge pipeline 15. The three-way valve 24 is configured to be capable of changing between a first state in which the rainwater discharge duct 16 and the rainwater guide duct 17 are communicated while blocking the communication of the rainwater discharge duct 16 to the recovery duct 18, and a second state in which the rainwater discharge duct 16 and the recovery duct 18 are communicated while blocking the communication of the rainwater discharge duct 16 to the rainwater guide duct 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 arranged on 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 part 23 is configured to be able to change the filter cartridge 39 between a first state of blocking transmission of solid impurities within the rainwater drain pipe 16 and a second state of not blocking the rainwater drain pipe 16 at all; and the filter valve core 39 is disc-shaped, and the thickness of the middle part of the filter valve core 39 is larger than the thickness of the peripheral edge of the filter valve core 39. The filter cartridge 39 and the three-way valve 24 are cooperatively operated to filter rainwater in a first state to allow rainwater to be discharged through the filter cartridge 39 to the rainwater guide pipe 17 while trapping impurities and solid matters, and intermittently operated in a second state in which impurities and solid matters trapped on the filter cartridge 39 are washed away by rainwater to be discharged to the recovery pipe 18 and the sewage discharge pipe 15 without being discharged to the rainwater guide pipe 17.

This process is described below with reference to fig. 4, 14 and 15, and it is noted that the rainwater branched off by the splitter 14 is discharged from the rainwater discharge pipe 16, the connecting pipe 55 is connected downstream of the rainwater discharge pipe 16, and then connected to a tee pipe having an inlet end communicating with the connecting pipe 55, the tee pipe further includes a first end 56 and a second end 57, the first end 56 is connected to the rainwater guiding pipe 17, and the second end 57 is connected to the recovery pipe 18. In the first state, as shown in fig. 14, the rainwater flow state is shown, in which the filter cartridge 39 and the three-way valve 24 are in the first working position, the filter cartridge 39 intersects the connecting pipe 55, but since the filter cartridge has the filter holes 54, rainwater can pass through the filter cartridge, in which the three-way valve 24 communicates the rainwater discharge pipe 16 and the rainwater guide pipe 17 to block the communication from the rainwater discharge pipe 16 to the recovery pipe 18, so that the filtered rainwater enters the rainwater guide pipe 17 and does not enter the sewage discharge pipe 15. The filter core 39 is a structure with thick middle and thin edge, and impurities are trapped at the left side of the filter core 39 and accumulated towards the edge of the filter element, so that the middle of the filter core 39 is not shielded. In the second state, as shown in fig. 15, for the filter cartridge cleaning state, the filter cartridge 39 is rotated under the control of the filter cartridge control part 23, and at the same time, the three-way valve 24 communicates the rainwater drain pipe 16 with the recovery pipe 18 to block the communication from the rainwater drain pipe 16 to the rainwater guide pipe 17, so that the impurities accumulated on the edge of the filter cartridge 39 are washed toward the recovery pipe 18 by the rainwater, 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 which can control them to operate synchronously and periodically open, switch or close to periodically clean the filter cartridge 39.

As an example, the solid material discharger 13 includes: a cylinder disposed in the connection hole 25 of the top wall of the diverter 14; a rotating shaft 36 disposed in the cylinder; the auger blade 26 is arranged in the cylinder body and on the periphery of the rotating shaft 36; and a rotating ring 37 arranged on the rotating shaft 36 and used for rotating the auger blade 26 to lift solid matters, wherein the upper part of the cylinder is provided with a discharge port 38, the bottom wall of the cylinder is provided with a plurality of water leakage holes 27, and the solid matter discharge part 13 is connected with the upstream bypass pipeline 12 through a connecting flange 35. Through the arrangement, the rotary ring 37 can be rotated to drive the auger blade 26 to rotate, so that the solid matters are lifted along the auger blade 26 and are discharged from the discharge port 38. In this example, the solid material needs to be discharged by manually rotating the swivel 37, and in the case where the swivel 37 is replaced by a motor controlled by a controller, automatic and periodic discharge of the solid material can be realized.

Referring to fig. 8-12, the internal structure of the flow diverter 14 will now be described. The flow divider 14 is internally provided with a high-position table top 32 and a tapered groove 31 lower than the high-position table top 32, the section of the tapered groove 31 perpendicular to the longitudinal extension 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 part of the high-position table top 32, and advantageously, the longitudinal extension direction of the tapered groove 31 is perpendicular to the water inlet direction. A closing 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 component is arranged above the high-position table top 32.

The closure assembly includes: chutes 42 provided on the inner wall of the diverter 14 adjacent to the sewage discharge conduit 15, the chutes 42 being defined by strips or projections provided on the inner wall, the chutes 42 being symmetrically provided in two; a cover 41 configured to be slidable along the slide groove 42 to communicate the tapered groove 31 with the sewage discharge duct 15 or to block communication of the tapered groove 31 to the sewage discharge duct 15, the cover 41 being a rectangular plate; a supporting rod 43 arranged on the bottom wall of the tapered groove 31, wherein two parallel sub-branches extend from the vertical upper end of the supporting rod 43; a lever 44 including a base rod 49 and a sleeve rod 50 sleeved outside the base rod 49, wherein the base rod 49 is arranged on the cover 41 through a hinge part 48, and the sleeve rod 50 is hinged on the supporting rod 43; and a float ball 45 disposed on an end of the sleeve rod 50 remote from the base rod 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 at a low position and the cover 41 is at a high position, and the inlet of the sewage discharge pipe 15 is not closed by the cover 41, so that the 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 up under the buoyancy of the water, and drives the sealing cover 41 to slide down along the sliding groove 42, so that the inlet of the sewage discharge pipeline 15 is sealed, and at this time, the sewage cannot be discharged through the inlet of the sewage discharge pipeline 15.

The partition member includes: the rails 46 are arranged on the inner wall of the diverter 14, the sliding direction of the rails 46 is a vertical direction, a pair of rails 46 are symmetrically arranged, each rail 46 is formed by two strip-shaped plates which are juxtaposed in parallel, each strip-shaped plate is provided with a step, the strip-shaped plates are arranged perpendicular to the wall surface of the diverter 14, the thickness of the strip-shaped plates close to the wall surface is smaller than that of the strip-shaped plates far away from the wall surface, and therefore grooves with deepened widths are formed in the wall surface of the rails 46 close to the diverter 14; a movable partition 33, a pulley 51 is arranged on the movable partition 33, the pulley 51 is arranged in the groove, and the movable partition 33 is configured to slide along the rail 46; and floating members 47 provided on the movable partition 33, in this embodiment, the floating members 47 may be pontoons, divided into two groups, respectively provided on both side surfaces of the movable partition 33, and a group of floating assemblies on each side surface are sequentially arranged.

When sewage enters from the water inlet pipeline 11, the sewage can be timely beaten away through the inlet of the sewage discharge pipeline 15 and can not be accumulated in the tapered groove 31 in a large amount because the sewage is discontinuously discharged into the flow divider 14, so that the water level in the tapered groove 31 is not too high, and the water level of the sewage is not higher than the high-level table top 32; when raining, a large amount of rainwater flows into the water inlet pipe 11 in a short time and continuously flows in, so that a part of rainwater is discharged from the sewage discharge pipe 15 at the beginning, but due to the characteristics of the durability and large amount of rainwater, the tapered groove 31 can be quickly filled with rainwater, the floating ball 45 can float under the buoyancy, the control sealing cover 41 seals the inlet of the sewage discharge pipe 15, and gradually, the rainwater in the flow divider 14 is higher than the high-level table board 32, so that the rainwater is not discharged through the sewage discharge pipe 15, but is discharged through the rainwater discharge pipe 16. The function of the partition assembly is that it will float with the water level, so that, initially, the movable partition 33 will abut against the high-level platform 32, and as the sewage discharge pipe 15 is closed, the water level gradually rises, and the movable partition 33 is gradually lifted by the suspension element 47, so that a gap is formed between the movable partition 33 and the high-level platform 32, and at this time, rainwater will flow through the gap to the rainwater discharge pipe 16; the separating component is also used for always keeping a gap between the movable partition plate 33 and the high-level table top 32, but the water level is always between the upper end and the lower end of the movable partition plate 33 and is always separated by the movable partition plate 33, therefore, a small amount of oil dirt carried in the rainwater can be layered as shown in figure 12, the upper layer is an oil dirt layer 53, the lower layer is rainwater 52, the oil dirt layer 53 is separated by the movable partition plate 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 separating component plays a role in separating the oil dirt. When the rainwater is removed, the oil stain layer 53 is always blocked by the movable partition 33 until the movable partition 33 descends to the high-level table surface 32 and then falls into the tapered groove 31.

The rainwater discharged from the rainwater discharge pipe 16 may be filtered by the downstream filter valve 39 if it contains solids. Furthermore, additionally, other water treatment devices or processes may also be provided downstream of the rainwater drain pipe 16 to improve the quality of the rainwater drained from the rainwater drain pipe 16.

In a further example, a flexible isolation cloth is provided above the movable partition 33, the lower end of the flexible isolation cloth is attached to the upper end of the movable partition 33, and the upper end of the flexible isolation cloth is attached to the top wall of the diverter 14, so that the movable partition 33 can move up and down, the upper end of the flexible isolation cloth always prevents the upper surface of the water in the diverter 14 from flowing to the rainwater discharge pipe 16, and only the lower water is allowed 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 rainwater floods the diverter 14 for a short time or because the movable partition 33 is blocked.

In an alternative embodiment, the movable partition 33 is provided with the floating member 47 only at a side facing the inlet of the inlet pipe 11 and is not provided with the floating member 47 at a side facing away from the inlet of the inlet pipe 11, and additionally, a float provided in a vertical direction is provided at a position of the movable partition 33 adjacent to the pulley 51 to maintain the balance of the movable partition 33 within the rail 46 and prevent the pulley 51 from being stuck.

According to a preferred embodiment of the present invention, the outer wall of the collection pipe 2, the water inlet pipe 11, the sewage discharge pipe 15 and/or the rainwater discharge pipe 16 is coated with an anticorrosive paint, and a protective sleeve is disposed outside the outer wall of the collection pipe 2, the water inlet pipe 11, the sewage discharge pipe 15 and/or the rainwater discharge pipe 16. In addition, the water 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 designed in a falling type to prevent backflow.

According to the rainwater and sewage diversion system provided by the preferred embodiment of the invention, the sieve plate is arranged on the water inlet pipeline, and the solid matters separated by the sieve plate are guided to the solid matter discharge part through the bypass pipeline, so that impurities in discharged water can be removed, the mesh holes 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 downstream sewage treatment plant can be reduced. Further, still set up filter valve core and three-way valve in rainwater drainage pipeline's low reaches, further improve the rainwater drainage quality through filter valve core to can realize washing of pipeline, when filter valve core slightly blocks, can utilize filter valve core and three-way valve's cooperation, make filter valve core be in and wash the position, close rainwater guide pipeline simultaneously and open the recovery pipeline, make the impurity on the filter valve core flow in the recovery pipeline, prevent the inside jam of pipeline.

In addition, the rain and sewage diversion system also protects related pipelines by using anticorrosive coatings and protective sleeves, and the service life of the whole rain and sewage diversion system is prolonged.

Although embodiments of the present invention have been shown and described, it would 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 their equivalents.

List of reference numbers:

100. rain sewage diversion system

1. Rainwater collection assembly

2. Collecting pipe

3. Collecting pipe

4. To-be-discharged pool

10. Split discharge assembly

11. Water inlet pipeline

12. Bypass line

13. Solid matter discharge part

14. Flow divider

15. Sewage discharge pipeline

16. Rainwater drainage pipeline

17. Rainwater guide pipeline

18. Recovery pipeline

21. Valve gate

22. Lifting part

23. Control part of filter valve core

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. Rotating ring

38. Discharge outlet

39. Filter valve core

41. Sealing cover

42. Sliding chute

43. Supporting rod

44. Lever

45. Floating ball

46. Track

47. Suspension element

48. Hinge part

49. Base rod

50. Loop bar

51. Pulley wheel

52. Rain water

53. Oil stain layer

54. Filter hole

55. Connecting pipe

56. First end

57. A second end.

Claims

1. A diversion system (100) for rainwater and sewage for enabling separate drainage of rainwater and sewage, characterized in that the diversion system (100) comprises:

the rainwater collecting assemblies (1) are arranged on the ground base body;

the flow dividing and discharging assembly (10) is arranged inside the ground base body; and

and the collecting pipeline (2) is communicated with the rainwater collecting component (1) and extends into the ground base body.

2. The rain and sewage diversion system (100) according to claim 1, wherein the diversion drain assembly (10) comprises:

a flow divider (14);

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

a sewage discharge conduit (15) disposed on a different side of the diverter (14) from the water inlet conduit (11), in fluid communication with the diverter (14); and

a rainwater drain conduit (16) disposed on a different side of the diverter (14) from the water inlet conduit (11), in fluid communication with the diverter (14).

3. The rain and sewage diversion system (100) of claim 2, wherein:

a solid matter discharge part (13) is arranged vertically above the flow divider (14), the flow dividing and discharging assembly (10) further comprises a bypass pipeline (12), the bypass pipeline (12) is communicated with the water inlet pipeline (11) and the solid matter 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 matter discharge part (13);

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

a high-position table board (32) and a reducing groove (31) lower than the high-position table board (32) are arranged in the flow divider (14), the section, perpendicular to the longitudinal extending direction, of the reducing groove (31) is in an inverted cone shape or an inverted trapezoid shape, the sewage discharge pipeline (15) is communicated with the reducing groove (31) in a fluid mode, and the rainwater discharge pipeline (16) is communicated with the fluid above the high-position table board (32) in a fluid mode; and is

A sealing component is arranged in the reducing groove (31) and used for blocking the communication between the reducing groove (31) and the sewage discharge pipeline (15); a separation component is arranged above the high-position table top (32).

4. Rain and sewage diversion system (100) according to claim 3, characterized in that:

the downstream of the rainwater discharge pipe (16) is connected with a rainwater guide pipe (17) and a recovery pipe (18) by 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 discharge pipe (16) and the rainwater guide pipe (17) are communicated while blocking the 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 the communication of the rainwater discharge pipe (16) to the rainwater guide pipe (17).

5. The rain and sewage diversion system (100) of claim 4, wherein:

a filter valve core (39) is arranged on a connecting pipeline (55) at the downstream of the rainwater drainage pipeline (16) and 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 drainage pipeline (16);

the filter cartridge control section (23) is configured to be able to change the filter cartridge (39) between a first state of blocking transmission of solid impurities within the rainwater drain pipe (16) and a second state of not blocking the rainwater drain pipe (16) at all; and is 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).

6. Rain and sewage diversion system (100) according to any of claims 2-5, characterized in that:

a valve (21) is provided in a bypass pipe (12) that communicates the water inlet pipe (11) and the solid discharge unit (13).

7. The shunt system (100) of claim 5, wherein the solids discharge portion (13) comprises:

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

a rotating shaft (36) arranged in the cylinder body;

the auger blade (26) is arranged in the cylinder body and on the periphery of the rotating shaft (36); and

a rotating ring (37) arranged on the rotating shaft (36) and used for rotating the auger blade (26) to lift solid matters,

wherein, the upper portion of barrel is provided with discharge port (38) to be provided with a plurality of holes (27) that leak on the diapire of barrel.

8. The rain and sewage diversion system (100) of claim 7, wherein said closure assembly comprises:

a chute (42) provided on an inner wall of the diverter (14) near the sewage discharge pipe (15);

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

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

9. Rain and sewage diversion system (100) according to any of claims 2-5, characterized in that:

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 anticorrosive paint, and protective sleeves are 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).

10. The rain and sewage diversion system (100) of claim 5, wherein:

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

the first end (56) is connected with the rainwater guide pipeline (17), and the second end (57) is connected with the recovery pipeline (18).