Modular rainwater non-point source pollution purification device

Abstract

The utility model discloses a modularized rainwater non-point source pollution purification device which comprises a box body and a sewage interception hanging basket, the sewage intercepting hanging basket is detachably arranged at a top port of the box body, and water passing holes are uniformly distributed in the bottom of the sewage intercepting hanging basket; a notch is formed in the center area of the bottom of the box body, a partition plate is arranged around the edge of the notch, a filtering cavity is formed by the partition plate and the inner wall of the box body, a filter element is arranged in the filtering cavity, and water outlet holes are evenly distributed in the bottom of the box body. According to the rainwater non-point source pollution purification device, modular design is adopted, the structure is simple, functions are easy to implement, the rainwater non-point source pollution purification device can be installed on the basis of an existing rainwater well, early-stage installation and later-stage maintenance are convenient, disassembly and assembly are convenient, and use cost is low.

Description

Technical Field

[0001] This utility model relates to the field of rainwater treatment technology, specifically to a modular rainwater non-point source pollution purification device. Background Technology

[0002] Surface runoff from urban roads and open spaces is a significant source of non-point source water pollution in urbanized areas. When rainwater flows over impermeable surfaces such as roads, parking lots, and lawns, it typically carries pollutants like garbage, oil, heavy metals, fertilizers, and pesticides into water bodies. Since rainwater is usually discharged directly through municipal pipe networks, it easily pollutes rivers and streams, ultimately harming human lives. Therefore, it is essential to install non-point source water treatment devices at storm drains along urban roads to manage the non-point source pollution generated by urban stormwater runoff.

[0003] Most of the non-point source pollution processors currently on the market have complex structures, large product sizes, and high costs. They can usually only be installed at newly built rainwater grates, and existing old rainwater grates cannot be modified. Therefore, the construction time is long, and the disassembly and assembly are not flexible, which greatly restricts the construction of future upgrades and renovations. At the same time, the later maintenance is very troublesome.

[0004] Therefore, it is necessary to develop a simple and easy-to-install treatment device to effectively solve the non-point source pollution problem caused by urban rainwater surface runoff. Utility Model Content

[0005] The purpose of this utility model is to provide a modular rainwater non-point source pollution purification device to address the problems existing in the non-point source pollution processors in the prior art. This device adopts a modular design, has a simple structure, is easy to use, can be installed on the basis of existing rainwater wells, and is convenient for initial installation, subsequent maintenance, and disassembly.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides a modular rainwater non-point source pollution purification device, including a box and a sewage interception basket; the sewage interception basket is detachably installed at the top port of the box, and the bottom of the sewage interception basket is evenly distributed with water passage holes; the bottom center area of ​​the box has a notch, and a partition is arranged around the edge of the notch, the partition and the inner wall of the box form a filter cavity, the filter cavity is provided with a filter element, and the bottom of the box has evenly distributed water outlet holes.

[0008] As a preferred embodiment of the present invention, the filter element includes a coarse filter element and a fine filter element, wherein the fine filter element is disposed at the bottom of the filter cavity and the coarse filter element is disposed above the fine filter element.

[0009] As a preferred embodiment of this utility model, the box body is installed inside the road storm drain by a support member, the support member including an annular frame or support seat adapted to the shape of the box body, and the support member is installed on the storm drain wall by fasteners.

[0010] As a preferred embodiment of this utility model, the top of the box body is provided with an outwardly extending flange, and the box body is installed in the road storm drain through the flange.

[0011] As a preferred embodiment of this utility model, the size of the intercepting basket is adapted to the size of the top port of the box.

[0012] As a preferred embodiment of this utility model, the height of the upper surface of the filter element is lower than the height of the partition.

[0013] As a preferred embodiment of this utility model, the height of the partition is lower than the height of the box body, and the sewage interception basket is located between the partition and the top of the box body.

[0014] As a preferred embodiment of this utility model, the top of the sewage interception basket is provided with an outwardly extending flange, and the sewage interception basket is hung on the top of the box body through the flange.

[0015] As a preferred embodiment of this utility model, the top of the sewage interception basket is provided with a fixed handle.

[0016] As a preferred embodiment of this utility model, the side wall of the housing is provided with a movable handle, and the position of the movable handle is higher than the upper surface of the filter element.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] 1. By setting up a sewage interception basket, large-sized pollutants carried in the incoming rainwater can be intercepted and then purified by the filter element in the filter chamber before being discharged, thereby treating non-point source pollution caused by urban rainwater runoff. The device adopts a modular design, has a simple structure, is easy to implement, can be installed on the basis of existing rainwater wells, and is easy to install and maintain in the early stage and disassemble at the later stage, with low cost.

[0019] 2. In this utility model, since the filter chamber is surrounded on the outside of the partition, when the initial water volume is small, rainwater will enter the filter chamber and be purified by the filter element before being discharged. When the water volume is large in the later stage, some rainwater will directly enter the channel formed by the inner side of the partition and be discharged, which can reduce the amount of mud and sand entering the filter chamber and extend the service life of the filter element.

[0020] 3. The filter element in this utility model includes a coarse filter element and a fine filter element. The fine filter element is set at the bottom of the filter chamber, and the coarse filter element is set above the fine filter element. The coarse filter element can be replaced in a timely manner, thereby reducing the cost of using the filter element. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0022] Figure 1 This is a perspective view of the modular rainwater surface source pollution purification device of this utility model;

[0023] Figure 2 This is another perspective view of the modular rainwater surface source pollution purification device of this utility model;

[0024] Figure 3 This is a cross-sectional view of the modular rainwater surface source pollution purification device of this utility model;

[0025] Figure 4 This is a perspective view of the box body in this utility model;

[0026] Figure 5 This is a sectional view of the box body in this utility model;

[0027] Figure 6 This is a schematic diagram of the annular frame in this utility model;

[0028] Figure 7 This is a schematic diagram of the support base in this utility model.

[0029] The attached diagram shows the markings and corresponding component names:

[0030] 1-Box body, 11-Baffle, 12-Filter chamber, 13-Water outlet, 14-Movable handle, 2-Sewage interception basket, 21-Water passage hole, 22-Fixed handle, 3-Filter element, 31-Coarse filter element, 32-Fine filter element, 4-Annular frame, 5-Support base, 6-Fasteners, A-Rainwater well. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0033] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0034] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0036] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0037] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces), unless otherwise explicitly specified.

[0038] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0039] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0040] Please refer to Figures 1 to 7 This application provides a modular rainwater non-point source pollution purification device, including a housing 1 and a sewage interception basket 2; the sewage interception basket 2 is detachably installed at the top port of the housing 1, and the bottom of the sewage interception basket 2 is evenly distributed with water passage holes 21; the bottom center area of ​​the housing 1 has a notch, and a partition 11 is arranged around the edge of the notch, the partition 11 and the inner wall of the housing 1 form a filter cavity 12, a filter element 3 is arranged in the filter cavity 12, and the bottom of the housing 1 is evenly distributed with water outlet holes 13.

[0041] In this embodiment, the housing 1 is rectangular with an open top; the cavity enclosed by the inner side of the partition 11 is also rectangular, and the partition 11 is located at the center of the bottom of the housing 1. Since both the top and bottom of the partition 11 are open, a drainage channel is formed inside the partition 11. The trap basket 2 is rectangular and is hung on the top of the housing 1. The side walls and bottom walls of the housing 1 and the filter cavity 12 enclosed by the partition 11 form an annular structure, therefore the filter element 3 is also an annular structure adapted to the horizontal cross-section of the filter cavity 12.

[0042] By installing a sewage interception basket 2 at the top port of the housing 1, large-sized debris carried in the incoming rainwater can be initially intercepted. The rainwater enters the filter chamber 12 through the water passage 21 at the bottom of the sewage interception basket 2, and is then purified by the filter element 3 inside the filter chamber 12 before being discharged through the water outlet 13 at the bottom of the housing 1. This effectively treats non-point source pollution caused by urban rainwater runoff. The device adopts a modular design, has a simple structure, is easy to implement, can be installed on the basis of the existing rainwater well A, and is convenient for initial installation and subsequent maintenance. It is also low in cost.

[0043] Typically, initial rainwater contains a high amount of harmful pollutants. In this application, the filter chamber 12 is arranged around the outside of the partition 11. When the initial water volume is small, the rainwater enters from the edge of the intercepting basket 2 and then enters the filter chamber 12 through the water holes 21. The filter element 3 then purifies the initial rainwater before it is discharged. When the water volume is large in the later stages, some rainwater will directly flow into the central area of ​​the intercepting basket 2 and enter the channel formed by the inner side of the partition 11 through the water holes 21 before being discharged. Since not all rainwater needs to enter the filter chamber 12 before being discharged, the amount of mud, sand and other particulate matter entering the filter chamber 12 can be effectively reduced. This helps to increase the service life of the filter element 3 and extend the maintenance and replacement cycle of the filter element 3.

[0044] It should be noted that when the initial water volume is small and the water flow is slow, the silt will gradually settle down as the rainwater flows along the road, and less silt will enter the intercepting basket 2. At this time, the initial rainwater enters the filter chamber 12 from the edge of the intercepting basket 2, and even if there is a small amount of silt, it will not have a significant impact on the filter element 3. However, when the water volume is large and the water flow is rapid in the later stages, the rainwater will carry a large amount of silt as it flows along the road, and more silt will enter the intercepting basket 2. If all the rainwater were to enter the filter chamber 12 at this time, it would cause a large amount of silt to accumulate on the upper surface of the filter element 3, thereby affecting the filtration performance of the filter element 3.

[0045] According to some embodiments of this application, the filter element 3 includes a coarse filter element 31 and a fine filter element 32. The fine filter element 32 is disposed at the bottom of the filter chamber 12, and the coarse filter element 31 is disposed above the fine filter element 32. Because the filter element 3 is divided into a coarse filter element 31 and a fine filter element 32, and arranged sequentially along the water flow direction, the coarse filter element 31 is more prone to failure during use. Since the coarse filter element 31 can use inexpensive filter media such as filter cotton, the cost of using the filter element 3 can be reduced by replacing the coarse filter element 31 in a timely manner.

[0046] According to some embodiments of this application, the housing 1 is installed inside the road storm drain A via a support member. The support member includes an annular frame 4 or a support base 5 adapted to the shape of the housing 1. The support member is installed on the wall of the storm drain A via fasteners 6. One form of the support member is an annular frame 4, and another form is multiple support bases 5, both of which can be fixed to the wall of the storm drain A with bolts. During installation, the housing 1 can be directly placed into the storm drain A, so that the top edge of the housing 1 hangs on the annular frame 4 or the support base 5.

[0047] According to some embodiments of this application, the top of the box body 1 is provided with an outwardly extending flange, and the box body 1 is installed in the road storm drain A through the flange. By providing a flange at the top edge of the box body 1, the box body 1 is supported by the lower side of the flange contacting the annular frame 4 or the support seat 5 during installation.

[0048] According to some embodiments of this application, the size of the intercepting basket 2 is adapted to the size of the top port of the housing 1. By designing the intercepting basket 2 to match the size of the top port of the housing 1, rainwater entering from the rain inlet will first flow into the intercepting basket 2, and then into the filter chamber 12 or the channel enclosed by the inner side of the partition 11.

[0049] According to some embodiments of this application, the height of the upper surface of the filter element 3 is lower than the height of the partition 11. Since the height of the partition 11 can be understood as the height of the filter chamber 12, the above design allows for a certain space above the upper surface of the filter element 3, which can serve as a buffer cavity for rainwater to enter the filter chamber 12.

[0050] According to some embodiments of this application, the height of the partition 11 is lower than the height of the housing 1, and the intercepting basket 2 is located between the partition 11 and the top of the housing 1. Using the above scheme, the space between the top of the partition 11 and the top of the housing 1 serves as the design space for the intercepting basket 2. This allows the intercepting basket 2 to be designed with a certain depth, serving as an accumulation space to accommodate the intercepted waste, thereby improving the waste-holding capacity of the intercepting basket 2.

[0051] According to some embodiments of this application, the top of the wastewater intercepting basket 2 is provided with an outwardly extending flange, and the wastewater intercepting basket 2 is hung on the top of the box body 1 through the flange. By providing a flange at the top edge of the wastewater intercepting basket 2, the wastewater intercepting basket 2 is supported by the lower side of the flange contacting the top of the box body 1 during installation.

[0052] According to some embodiments of this application, a fixed handle 22 is provided at the top of the intercepting basket 2. Specifically, fixed handles 22 can be provided on opposite sides of the top of the intercepting basket 2 to facilitate lifting the intercepting basket 2 by hand, thereby facilitating cleaning and maintenance of the intercepting basket 2.

[0053] According to some embodiments of this application, a movable handle 14 is provided on the side wall of the housing 1, and the movable handle 14 is positioned higher than the upper surface of the filter element 3. Specifically, movable handles 14 can be provided on two opposite inner sides of the housing 1 to facilitate lifting the housing 1 from the rainwater well A, thereby facilitating the installation and disassembly of the housing 1 and the maintenance of the filter element 3. The aforementioned movable handle 14 refers to its rotatable connection with the side wall of the housing 1. Since the movable handle 14 is located above the filter element 3, it can be rotated to fit against the inner wall of the housing 1 when not in use, thereby avoiding any interference with the installation and disassembly of the filter element 3.

[0054] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A modular stormwater non-point source pollution treatment device, characterized in that, The device includes a housing and a wastewater interception basket. The wastewater interception basket is detachably installed at the top port of the housing, and the bottom of the wastewater interception basket is evenly distributed with water passage holes. The bottom center area of ​​the housing has a notch, and a partition is arranged around the edge of the notch. The partition and the inner wall of the housing form a filter chamber, and a filter element is installed in the filter chamber. The bottom of the housing has evenly distributed water outlet holes. The partition extends vertically upward from the bottom of the box, and the height of the partition is lower than the height of the box. The sewage interception basket is located between the partition and the top of the box. The inner side of the partition forms a drainage channel, and the upper and lower ends of the drainage channel are open structures. The box body is installed inside the road storm drain via a support member, which includes an annular frame or support base adapted to the shape of the box body. The support member is installed on the storm drain wall via fasteners. The top of the box body is provided with an outwardly extending flange, and the box body is installed on the support member via the flange.

2. The modular stormwater first flush pollution treatment device of claim 1, wherein, The filter element includes a coarse filter element and a fine filter element. The fine filter element is disposed at the bottom of the filter chamber, and the coarse filter element is disposed above the fine filter element.

3. The modular stormwater first flush pollution treatment device of claim 1, wherein, The size of the intercepting basket is adapted to the size of the top port of the box.

4. The modular stormwater first flush pollution treatment device of claim 1, wherein, The height of the upper surface of the filter element is lower than the height of the partition.

5. The modular stormwater first flush pollution treatment device of claim 1, wherein, The top of the sewage interception basket is provided with an outwardly extending flange, and the sewage interception basket is hung on the top of the box body through the flange.

6. The modular stormwater first flush pollution treatment device of claim 1, wherein, The top of the intercepting basket is equipped with a fixed handle.

7. The modular stormwater first flush pollution treatment device of claim 1, wherein, The side wall of the housing is provided with a movable handle, which is positioned above the upper surface of the filter element.

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