CN114349190B - Sponge urban rainwater purification structure - Google Patents
Sponge urban rainwater purification structure Download PDFInfo
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- CN114349190B CN114349190B CN202111475322.8A CN202111475322A CN114349190B CN 114349190 B CN114349190 B CN 114349190B CN 202111475322 A CN202111475322 A CN 202111475322A CN 114349190 B CN114349190 B CN 114349190B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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Abstract
The invention provides a sponge urban rainwater purifying structure, which comprises: the top of the filter well is provided with a well mouth, and the side wall of the filter well is provided with a drain hole; the high-grade filter plate is tightly arranged on the inner wall of the filter well; the middle-stage filter plate is arranged on the inner side of the high-stage filter plate; the broken stone filter layer is filled between the two filter plates; the rainwater collecting well is detachably arranged in the filtering well, the top of the rainwater collecting well is provided with an opening, and the side wall of the rainwater collecting well is provided with a rainwater well overflow port; the first-stage mud settling tank is detachably arranged in the rainwater collecting well; the second-stage sludge sink consists of a space between the first-stage sludge sink and the rainwater collecting well; the diversion trench is detachably arranged in the rainwater collecting well and is positioned right above the primary sludge sink; the primary filter plate is detachably arranged in the rainwater collecting well and is positioned above the diversion trench; and the well cover is arranged on the rainwater collecting well, and the periphery of the well cover is provided with a water inlet. The invention can realize the graded filtration of rainwater and sediment storage, protect the rainwater well from being blocked easily and effectively prolong the cleaning period of the rainwater well.
Description
Technical Field
The invention relates to the technical field of sponge cities, in particular to a sponge city rainwater purification structure.
Background
The sponge city solves the problems caused by the traditional rainwater management technology by the source control concept of storage, diversion, permeation and purification, and realizes the storage, permeation and purification of rainwater in the urban area to the maximum extent on the premise of ensuring the urban drainage waterlogging prevention safety, thereby promoting the utilization of rainwater resources and the ecological environment protection. The rainwater purification system is an important ring in a sponge city, if rainwater is not filtered, impurities and sediment can be carried and directly flow into the rainwater well, the rainwater well is burdened, and meanwhile, the rainwater pipe can be blocked, so that the function of the rainwater well is lost.
Disclosure of Invention
The invention provides a sponge urban rainwater purification structure, which can realize the classified filtration and sediment precipitation storage of rainwater, protect a rainwater well from being blocked easily, effectively prolong the cleaning period of the rainwater well, ensure the purified water quality and save the use cost.
The technical scheme adopted for solving the technical problems is as follows:
a sponge urban rainwater purification structure comprising:
the top of the filter well extends along the radial direction for a certain length to form a flange, a well head is formed at the hollow part of the flange, and a drain hole is formed in the side wall of the filter well;
the high-grade filter plate is closely arranged on the inner wall of the filter well;
the middle-stage filter plate is arranged on the inner side of the high-stage filter plate, and the diameter of the middle-stage filter plate is smaller than that of the high-stage filter plate and larger than or equal to that of a wellhead;
the broken stone filter layer is filled between the high-grade filter plate and the medium-grade filter plate;
the rainwater collecting well is detachably arranged in the filtering well through the wellhead, the upper end of the rainwater collecting well extends out of the filtering well, the rainwater collecting well is in sealing connection with the flange, an opening is formed in the top of the rainwater collecting well, and a rainwater well overflow port is formed in the side wall of the rainwater collecting well, which is positioned in the filtering well;
the first-stage sludge sink is detachably arranged at the bottom of the rainwater collecting well, the top of the first-stage sludge sink is higher than the overflow port of the rainwater well by a certain height, and the outer diameter of the first-stage sludge sink is smaller than the inner diameter of the rainwater collecting well;
the second-stage sludge sink consists of a space between the first-stage sludge sink and the rainwater collecting well;
the diversion trench is detachably arranged in the rainwater collecting well and is positioned right above the primary sludge sink, the diversion trench is in an inverted truncated cone shape, and a plurality of transverse reinforcing ribs are arranged on the inner wall of the diversion trench along the circumferential direction;
the primary filter plate is detachably arranged in the rainwater collecting well and is positioned above the diversion trench;
the well lid is arranged at the opening of the rainwater collecting well, and a water inlet communicated with the rainwater collecting well is arranged on the periphery of the well lid.
Optionally, a first socket is arranged at the bottom of the filtering well, and the bottom of the rainwater collecting well is inserted into the first socket.
Optionally, a groove is formed in the inner edge of the top of the flange, and a rubber gasket used for sealing connection between the flange and the rainwater collecting well is installed in the groove.
Optionally, the lateral wall of filter well is equipped with a plurality of wash port along circumference, and every wash port department installs the drain pipe, the wash port sets up near the bottom of filter well.
Optionally, a second socket is arranged at the bottom of the rainwater collecting well, and the bottom of the primary sludge sink is inserted into the second socket.
Optionally, a dirt interception plate is arranged at a position, close to the top, in the primary sludge trough.
Optionally, the dirt interception plate is arranged obliquely downwards.
Optionally, the top of the primary sludge sink is 200-300mm higher than the overflow port of the catch basin.
Optionally, the guiding gutter is including being the guiding gutter body of reverse round platform shape, locate grid at guiding gutter body inner wall top, along the axial arrange in the vertical stiffening rib of guiding gutter body inner wall, vertical stiffening rib and horizontal stiffening rib are latticed arrangement, and are located the grid below.
Optionally, the rainwater collecting well inner wall is installed along circumference and is encorbelmented the board, the inboard edge in top of encorbelmenting the board is equipped with the tongue-and-groove, guiding gutter detachable install in tongue-and-groove department, primary filter detachable install in encorbelment the board.
The invention has the beneficial effects that: according to the invention, the rainwater collecting well and the filtering well are independently arranged, the rainwater collecting well is used for primary filtering and twice sediment precipitation of rainwater, the filtering well is used for improving the final filtering effect of the rainwater through the double-layer filtering plates and the crushed stone filtering layers, the classified filtering and sediment precipitation storage of the rainwater are realized, the rainwater collecting well is not easy to be blocked, the cleaning period of the rainwater collecting well is effectively prolonged, the water quality is ensured, and the use cost is saved.
Specifically, the rainwater flows into the rainwater collecting well through the water inlet at the periphery of the well cover, large-particle impurities are screened by the primary filter plate firstly, then the large-particle impurities enter the primary sludge settling tank through the diversion trench, a plurality of transverse strengthening ribs are circumferentially arranged on the inner wall of the diversion trench from top to bottom, the diversion trench is designed to be in an inverted circular truncated cone shape, most of the rainwater filtered by the primary filter plate flows into the inner wall of the diversion trench, the flow rate of the rainwater is slowed down under the action of the transverse strengthening ribs, the flushing of the rainwater to the bottom of the well is reduced, the sediment settling effect is improved, the sediment carried by the rainwater entering the primary sludge settling tank is settled at the bottom of the well, the rainwater after primary sludge is overflowed to the secondary sludge settling tank from the top of the primary sludge settling tank, the secondary sludge is settled again, the clean water after secondary sludge flows into the filtering well from the overflow port of the rainwater well, and flows into the drainage hole sequentially through the middle-stage filter plate, the crushed stone filter layer and the high-stage filter plate which are arranged in the filtering well. In addition, most parts of the invention adopt a detachable installation mode, and when the primary filter plate and the primary mud settling tank have more sundries or other parts are damaged, the parts can be taken out for cleaning or maintenance and replacement, and the whole rainwater collecting well can be lifted out for maintenance and replacement.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a perspective view of a sponge urban rainwater purification structure provided by the invention;
FIG. 2 is a cross-sectional view of the sponge urban rainwater purification structure provided by the invention;
FIG. 3a is a perspective view of a flow guide groove according to an embodiment of the present invention;
FIG. 3b is a top view of a flow guide groove according to an embodiment of the present invention;
FIG. 3c is a schematic diagram illustrating installation of a flow guide groove according to an embodiment of the present invention;
FIG. 4 is a schematic view of a cantilever plate according to an embodiment of the present invention;
FIG. 5a is a perspective view of a primary sludge basin in an embodiment of the invention;
FIG. 5b is a cross-sectional view of a primary sludge basin in an embodiment of the invention;
fig. 6 is a schematic structural view of a manhole cover according to an embodiment of the present invention.
In the figure: 1-a rainwater collection well; 1.1-opening; 1.2-overflow port of catch basin; 1.3-a second socket; 2-primary filter plates; 3-L-shaped supporting frames; 3.1-L-shaped angle steel; 3.2-middle support; 3.3-bolts; 4-a medium-grade filter plate; 6-a gravel filter layer; 7-diversion trenches; 7.1-transverse stiffening ribs; 7.2-cross lifting hooks; 7.3-grating; 7.4-diversion trench body; 7.5-vertical stiffening ribs; 8-cantilever plates; 8.1-tongue and groove; 10-advanced filter plate; 11-a filter well; 11.1-flanges; 11.2-wellhead; 11.3-a first socket; 11.4-grooves; 11.5-a third socket; 11.6-drain holes; 13-a secondary sludge sink; 14-a first-stage sludge sink; 14.1-reserving a lifting hole; 14.2-a dirt interception plate; 15-sludge; 16-rainwater; 17-concrete cushion plates; 18-a drain pipe; 19-well cover; 19.1-a manhole cover handle; 19.2-pressure relief holes; 19.3-stiffeners; 19.4-anti-slip protrusions; 19.5-water inlet; 20-rubber gasket.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality", "a number" or "a plurality" is two or more.
The following describes a sponge urban rainwater purification structure provided by the invention with reference to fig. 1 to 6.
As shown in fig. 1, 2, 5a and 6, an embodiment of the present invention provides a sponge urban rainwater purifying structure, including:
the top of the filter well 11 extends along the radial direction for a certain length to form a flange 11.1, a well mouth 11.2 is formed at the hollow part of the flange 11.1, and a drain hole 11.6 is arranged on the side wall of the filter well 11;
the advanced filter plate 10 is closely arranged on the inner wall of the filter well 11;
the middle-stage filter plate 4 is arranged on the inner side of the high-stage filter plate 10, and the diameter of the middle-stage filter plate 4 is smaller than that of the high-stage filter plate 10 and is larger than or equal to that of the wellhead 11.2;
a crushed stone filter layer (6) filled between the high-stage filter plate 10 and the medium-stage filter plate 4;
the rainwater collecting well 1 is detachably arranged in the filter well 11 through a well head 11.2, the upper end of the rainwater collecting well is extended out of the filter well 11, the rainwater collecting well 1 is in sealing connection with the flange 11.1, an opening 1.1 is formed in the top of the rainwater collecting well 1, a plurality of rainwater well overflow ports 1.2 are formed in the side wall of the rainwater collecting well 11, and the rainwater well overflow ports are arranged at a certain height from the bottom of the rainwater collecting well and are 200-300mm lower than the top of the primary sludge sink;
the primary sludge sink 14 is detachably arranged at the bottom of the rainwater collecting well 1, the top of the primary sludge sink 14 is higher than the overflow port of the rainwater well by a certain height 1.2, and the outer diameter of the primary sludge sink 14 is smaller than the inner diameter of the rainwater collecting well 1;
the secondary mud settling tank 13 is formed by a space between the primary mud settling tank 14 and the rainwater collecting well 1;
the diversion trench 7 is detachably arranged in the rainwater collecting well 1 and is positioned right above the primary mud settling tank 14, the diversion trench 7 is in an inverted truncated cone shape, and a plurality of transverse reinforcing ribs 7.1 are arranged on the inner wall of the diversion trench 7 along the circumferential direction;
the primary filter plate 2 is detachably arranged in the rainwater collecting well 1 and is positioned above the diversion trench 7;
the well cover 19 is arranged at the opening 1.1 of the rainwater collecting well 1, and the periphery of the well cover 19 is provided with a water inlet 19.5 communicated with the rainwater collecting well 1.
In one embodiment, as shown in fig. 2, a first socket 11.3 is arranged at the bottom of the filter well 11, and the bottom of the rainwater collecting well 1 is inserted into the first socket 11.3, so that the rainwater collecting well can be fixed at the bottom of the filter well, the anti-interference capability of the rainwater collecting well is improved, and the rainwater collecting well is convenient to install and detach.
In one embodiment, as shown in fig. 2, a groove 11.4 is arranged at the top inner side edge of the flange 11.1, and a rubber gasket 20 for sealing connection between the flange 11.1 and the rainwater collecting well 1 is arranged in the groove 11.4, so that the installation is simple and the sealing effect is good.
In one embodiment, as shown in fig. 1 and 2, the side wall of the filter well 11 is provided with a plurality of drain holes 11.6 along the circumferential direction, a drain pipe 18 is installed at each drain hole 11.6, and the drain holes 11.6 are arranged near the bottom of the filter well 11. As shown in fig. 2, the drain pipe 18 can be inserted into the third socket 11.5 arranged at the drain hole of the filter well, so that the connection strength between the drain pipe and the filter well can be improved.
In one embodiment, as shown in fig. 5a and 5b, the bottom of the rainwater collecting well 1 is provided with a second socket 1.3, the bottom of the primary mud settling tank 14 is inserted into the second socket 1.3, and the primary mud settling tank can be fixed at the bottom of the rainwater collecting well, so that the anti-interference capability of the rainwater collecting well is improved, and the rainwater collecting well is convenient to install and detach.
In one embodiment, as shown in fig. 2, 5a and 5b, a dirt interception plate 14.2 is arranged in the first-stage sludge trough 14 near the top, so that the overflow of the sludge in the first-stage sludge trough can be prevented, and the sediment collection capacity of the first-stage sludge trough is improved. Preferably, the sewage interception plate 14.2 is arranged obliquely downwards, so that the overflow of the sludge in the primary sludge trough can be further prevented.
In one embodiment, as shown in fig. 2, the top of the primary sludge sink 14 is 200-300mm higher than the overflow port of the catch basin, and a large height difference is set, so that overflowed water filtered in the primary sludge sink can be discharged out of the well in time without flowing back into the primary sludge sink.
In one embodiment, as shown in fig. 3a and 3b, the diversion trench 7 includes a diversion trench body 7.4 with an inverted truncated cone shape, a grid 7.3 disposed at the top of the inner wall of the diversion trench body 7.4, and vertical reinforcing ribs 7.5 axially disposed on the inner wall of the diversion trench body 7.4, where the vertical reinforcing ribs 7.5 and the lateral reinforcing ribs 7.1 are disposed in a grid shape and below the grid 7.3. The diversion trench body is made of a non-porous stainless steel plate, and the grid arranged at the top of the diversion trench body is made of non-modified materials, so that the purpose of supporting the upper primary filter plate is to avoid bending deformation of the upper primary filter plate under the impact of rainwater, meanwhile, the diversion trench body also has a drainage function, filtered water is led out downwards through the grid, the concentrated seepage of water flow from the center of the filter plate is avoided, the local blockage of the filter plate is caused, and meanwhile, a certain slow flow function is realized; the transverse reinforcing ribs can slow down the flow rate of rainwater, and the vertical reinforcing ribs can play a reinforcing role, so that the service life of the diversion trench is prolonged.
In one embodiment, as shown in fig. 1, 3c and 4, a cantilever plate 8 is circumferentially arranged on the inner wall of the rainwater collecting well 1, a tongue-and-groove 8.1 is arranged at the inner edge of the top of the cantilever plate 8, a diversion trench 7 is detachably arranged at the tongue-and-groove 8.1, and a primary filter plate 2 is detachably arranged on the cantilever plate 8. The cantilever plate is made of stainless steel, and the diversion trench and the primary filter plate can be installed in the rainwater collecting well. Preferably, the cantilever plate is installed at the inner wall of the rainwater collecting well through an L-shaped supporting frame 3, the L-shaped supporting frame 3 comprises L-shaped angle steel 3.1 and a middle support 3.2 obliquely arranged between the L-shaped angle steel 3.1, and the L-shaped angle steel 3.1 is fixedly installed at the inner wall of the rainwater collecting well through a bolt 3.3 and optionally at the middle height position of the inner wall of the L-shaped supporting frame. The components of the L-shaped support frame are all made of stainless steel.
In one embodiment, as shown in fig. 6, the periphery of the well lid 19 is provided with a plurality of water inlets 19.5, the shape of the water inlets 19.5 can be designed into various shapes such as a round shape, a rectangle shape, an arc shape or a crescent shape, the crescent shape effect is optimal, and the top surface of the well lid 19 is also provided with pressure relief holes 19.2, so that the phenomenon of water inlet blockage when the rainfall is large is avoided; the pressure relief hole is internally provided with a well lid handle 19.1, so that the maintenance of workers is facilitated. The well cover is simple and convenient to install, and can create great economic and social benefits.
The following examples illustrate the installation process of the present invention in detail, as shown in fig. 1-6.
First, the concrete pad 17 is poured and cured.
And secondly, installing a filter well 11, arranging a third socket 11.5 on the outer wall of the filter well 11, reserving a groove 11.4 on one side of the inner ring at the top of the flange, arranging a middle-stage filter plate 4 on the inner side of the filter well 11, arranging an advanced filter plate 10 on the outer side of the filter well 11, and arranging a broken stone filter layer 6 between the two filter plates. The bottom of the filter well 11 is provided with a first socket 11.3, and the size of the socket is slightly larger than or equal to the outer diameter of the rainwater collecting well.
In a third step, the rainwater collecting well 1 is mounted in the first socket 11.3 of the filter well 11, with the rubber gasket 20 being fitted into the groove 11.4 of the flange. The inside bottom of rainwater collecting well 1 sets up second socket 1.3, has grafting one-level desilting tank 14 in the inslot, and second socket 1.3 agrees with one-level desilting tank 14 external diameter, and one-level desilting tank 14 top has reserved lifting hole 14.1, and certain distance below the top sets up cuts dirty board 14.2, cuts dirty board 14.2 and one-level desilting tank 14 inner wall and is the acute angle. The space formed by the first-stage mud settling tank 14 and the inner wall of the rainwater collecting well 1 is a second-stage mud settling tank 13. The rainwater collecting well 1 is provided with a rainwater well overflow port 1.2 at a certain distance from the inner wall to the periphery above the bottom of the rainwater collecting well 1, and a middle-stage filter plate 4 in a filter well 11 is tightly contacted with the rainwater well overflow port 1.2. The middle part of the inner side of the rainwater collecting well 1 is provided with an annular cantilever plate 8, the edge of the cantilever plate is provided with a tongue-and-groove 8.1, and the tongue-and-groove size is 50mm and the thickness of the diversion trench 7 is multiplied. The cantilever plate 8 is provided with an L-shaped supporting frame 3, the L-shaped supporting frame 3 consists of an L-shaped angle steel 3.1 and a middle support 3.2, and the L-shaped supporting frame is fixed on the cantilever plate 8 and the inner wall of the rainwater collecting well 1 by bolts 3.3. The cantilever plate 8 is provided with the diversion trenches 7, the diversion trenches 7 are funnel-shaped, the main body is a stainless steel diversion trench body 7.4, the inner wall of the trench is uniformly provided with the vertical strengthening ribs 7.5 and the transverse strengthening ribs 7.1, and the top of the stainless steel diversion trench body is provided with the stainless steel grille 7.3 and the stainless steel cross lifting hook 7.2. The lower part of the opening of the diversion trench 7 is opposite to the primary sludge sink 14, and the opening of the diversion trench is slightly smaller than the opening of the primary sludge sink. The upper part of the diversion trench 7 is provided with a primary filter plate 2. And (3) injection: the metal components are made of stainless steel, and the primary, intermediate, high-grade, primary, secondary and other words represent degrees and do not represent material types.
Fourth step, installing rainwater well lid 19 at rainwater collecting well 1 top, setting up crescent type's water inlet 19.5 all around the rainwater well lid 19 side, reserving pressure release hole 19.2 in the middle part of the top surface, pressure release hole is circular, and the diameter is not less than 30mm. A well lid handle 19.1 is arranged in the pressure relief hole 19.2, an anti-slip piece is arranged on the handle, and a stiffening rib 19.3 and an anti-slip protrusion 19.4 are arranged on the top surface of the well lid 19.
Fifth, the drain pipe 18 is inserted into the third socket 11.5 in the annular filter well 11.
The sponge urban rainwater purification structure provided by the invention can be prefabricated and assembled, and can be assembled integrally or installed on site in factories so as to improve the installation efficiency. As shown in fig. 2, the working principle is as follows: rainwater flows into the rainwater collecting well through the water inlet on the periphery of the well cover, large-particle impurities are screened through the primary filter plate, then enter the primary sedimentation tank through the diversion trench, the rainwater flow speed is slowed down through the transverse reinforcing rib, sediment carried by the rainwater entering the primary sedimentation tank is deposited at the tank bottom to form silt 15, the rainwater after primary sedimentation overflows to the secondary sedimentation tank from the top of the primary sedimentation tank to be deposited again, the rainwater 16 after secondary sedimentation flows into the filter well through the overflow port of the rainwater well, and flows into the drain pipe through the middle-level filter plate, the crushed stone filter layer and the high-level filter plate which are arranged in the filter well in sequence.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the various embodiments of the invention, which should be set forth in the following claims.
Claims (10)
1. A sponge urban rainwater purification structure, characterized by comprising:
the top of the filter well (11) extends for a certain length along the radial direction to form a flange (11.1), a well mouth (11.2) is formed at the hollow part of the flange (11.1), and a drain hole (11.6) is formed in the side wall of the filter well (11);
the advanced filter plate (10) is tightly arranged on the inner wall of the filter well (11);
the middle-stage filter plate (4) is arranged on the inner side of the high-stage filter plate (10), and the diameter of the middle-stage filter plate (4) is smaller than that of the high-stage filter plate (10) and larger than or equal to that of the wellhead (11.2);
a crushed stone filter layer (6) filled between the high-grade filter plate (10) and the medium-grade filter plate (4);
the rainwater collecting well (1) is detachably arranged in the filtering well (11) through the wellhead (11.2), the upper end of the rainwater collecting well extends out of the filtering well (11) to be arranged, the rainwater collecting well (1) is in sealing connection with the flange (11.1), an opening (1.1) is formed in the top of the rainwater collecting well (1), and a rainwater well overflow port (1.2) is formed in the side wall of the rainwater collecting well (1) located in the filtering well (11);
the first-stage sludge settling tank (14) is detachably arranged at the bottom of the rainwater collecting well (1), the top of the first-stage sludge settling tank (14) is higher than the overflow port (1.2) of the rainwater well by a certain height, and the outer diameter of the first-stage sludge settling tank (14) is smaller than the inner diameter of the rainwater collecting well (1);
the secondary sludge sink (13) is formed by a space between the primary sludge sink (14) and the rainwater collecting well (1);
the diversion trench (7) is detachably arranged in the rainwater collecting well (1) and is positioned right above the primary mud settling tank (14), the diversion trench (7) is in an inverted truncated cone shape, and a plurality of transverse reinforcing ribs (7.1) are arranged on the inner wall of the diversion trench along the circumferential direction;
the primary filter plate (2) is detachably arranged in the rainwater collecting well (1) and is positioned above the diversion trench (7);
the well lid (19) is arranged at the opening (1.1) of the rainwater collecting well (1), and a water inlet (19.5) communicated with the rainwater collecting well (1) is arranged at the periphery of the well lid (19).
2. The sponge urban rainwater purification structure as claimed in claim 1, wherein the bottom of the filter well (11) is provided with a first socket (11.3), and the bottom of the rainwater collection well (1) is inserted into the first socket (11.3).
3. The sponge urban rainwater purification structure as claimed in claim 1, wherein a groove (11.4) is arranged at the top inner side edge of the flange (11.1), and a rubber gasket (20) for sealing connection between the flange (11.1) and the rainwater collecting well (1) is arranged in the groove (11.4).
4. The sponge urban rainwater purification structure as claimed in claim 1, wherein the side wall of the filter well (11) is provided with a plurality of drain holes (11.6) along the circumferential direction, a drain pipe (18) is installed at each drain hole (11.6), and the drain holes (11.6) are arranged close to the bottom of the filter well (11).
5. The sponge urban rainwater purification structure according to claim 1, wherein the bottom of the rainwater collection well (1) is provided with a second socket (1.3), and the bottom of the primary sludge sink (14) is inserted into the second socket (1.3).
6. The sponge urban rainwater purification structure as claimed in claim 1, wherein a sewage interception plate (14.2) is arranged in the primary sludge trough (14) at a position close to the top.
7. The sponge urban rainwater purification structure as claimed in claim 6, wherein the dirt interception plate (14.2) is arranged obliquely downwards.
8. The sponge urban rainwater purification structure as claimed in claim 1, wherein the top of the primary sludge trough (14) is 200 mm-300 mm higher than the overflow outlet (1.2) of the rainwater well.
9. The sponge urban rainwater purification structure according to claim 1, wherein the diversion trench (7) comprises a diversion trench body (7.4) in an inverted truncated cone shape, a grid (7.3) arranged at the top of the inner wall of the diversion trench body (7.4), and vertical reinforcing ribs (7.5) axially arranged on the inner wall of the diversion trench body (7.4), wherein the vertical reinforcing ribs (7.5) and the transverse reinforcing ribs (7.1) are arranged in a grid shape and are positioned below the grid (7.3).
10. The sponge urban rainwater purification structure according to claim 1, wherein a cantilever plate (8) is arranged on the inner wall of the rainwater collection well (1) along the circumferential direction, a tongue-and-groove (8.1) is arranged at the inner edge of the top of the cantilever plate (8), the diversion trench (7) is detachably arranged at the tongue-and-groove (8.1), and the primary filter plate (2) is detachably arranged on the cantilever plate (8).
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| CN202111475322.8A CN114349190B (en) | 2021-12-06 | 2021-12-06 | Sponge urban rainwater purification structure |
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| CN202111475322.8A CN114349190B (en) | 2021-12-06 | 2021-12-06 | Sponge urban rainwater purification structure |
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| CN114349190B true CN114349190B (en) | 2023-05-23 |
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| CN115282684B (en) * | 2022-09-15 | 2023-09-29 | 河南广基建设工程有限公司 | Overhead road environment-friendly rainwater treatment system for sponge city |
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| CN106223401B (en) * | 2016-09-07 | 2018-09-25 | 南京楚卿电子科技有限公司 | A kind of rainwater-collecting filter |
| CN109797839B (en) * | 2019-02-25 | 2019-12-24 | 天津市水利科学研究院 | Urban road gutter inlet efficient sewage interception device and sewage interception operation method |
| CN213477073U (en) * | 2020-06-03 | 2021-06-18 | 李敏 | Rainwater collection device for sponge city construction |
| CN113123403A (en) * | 2021-04-19 | 2021-07-16 | 安徽普瑞明精密机械有限公司 | Intelligent rainwater storage well lid and implementation method thereof |
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