A conical bottom-expanding swirl rainwater outlet

Abstract

The present invention discloses a conical bottom-expanding cyclone rainwater outlet, which includes a filter chamber, a cyclone chamber and a sludge chamber from top to bottom; the top of the filter chamber is open, and a first filter device can be detachably installed; a second filter device can be detachably installed inside the filter chamber; a water outlet is provided on the side wall of the cyclone chamber, and an annular guide plate is arranged along the inner wall of the cyclone chamber in an annular direction, and the lower end of the annular guide plate faces the water outlet to guide rainwater to the water outlet and discharge it. The present invention can ensure that the rainwater outlet will not be blocked, solve surface source pollution, and when cleaning, it only needs to take out the slag blocking net and remove the garbage on the slag blocking net, without manual digging.

Description

Technical Field

[0001] The present invention relates to the field of municipal rainwater inlet manufacturing, and more specifically, to a swirling flow bottom-expanding type rainwater inlet for intercepting initial rainwater. Background Art

[0002] Most of the current urban roads have been built. Due to the large area of ​​the old urban area, the concept of sponge city has only been widely adopted in recent years. Therefore, most roads have not adopted "sunken green belt + overflow rainwater outlet", and are basically "hard pavement + partial grating rainwater outlet", which lacks the "interception, filtration, infiltration, purification, regulation, retention" and other measures in the concept of sponge city. After years of upgrading and transformation, the rainwater pipe network in the old urban area has greatly improved the problem of road waterlogging, but in the absence of space to build a large-volume rainwater storage tank and unable to carry out the overall sponge city transformation of old roads, the pollution control of initial rainwater by hard pavement is almost zero. Summary of the invention

[0003] In order to achieve these purposes and other advantages of the present invention, a conical bottom-expanding cyclone rainwater inlet is provided, which comprises a filter chamber, a cyclone chamber and a sludge chamber in order from top to bottom; wherein the top of the filter chamber is open and a first filter device can be detachably installed; and a second filter device can be detachably installed inside the filter chamber;

[0004] A water outlet is provided on the side wall of the cyclone chamber. An annular guide plate is arranged in the cyclone chamber along the inner wall thereof in an annular direction and tiltedly. The lower end of the annular guide plate faces the water outlet to guide rainwater to the water outlet for discharge.

[0005] According to a preferred embodiment of the present invention, in the conical bottom-expanding swirl rainwater outlet, the swirl chamber is a truncated cone-shaped structure that is larger at the top and smaller at the bottom.

[0006] According to a preferred embodiment of the present invention, in the conical expanded-bottom swirl rainwater outlet, a plurality of discarded flow pipes are arranged on the side wall of the sludge chamber, one end of the discarded flow pipe is connected to the interior of the sludge chamber, and the other end is connected to the outside of the discarded flow pipe, and both ends of the discarded flow pipe are covered with a filter screen to allow the flowing water to be discharged through the filter screen.

[0007] According to a preferred embodiment of the present invention, in the conical bottom-expanding swirl rainwater outlet, the first filtering device is a rainwater grate, and its shape is consistent with the shape of the top opening of the filter chamber.

[0008] According to a preferred embodiment of the present invention, in the conical expanded-bottom swirl rainwater outlet, the second filtering device is a slag retaining net.

[0009] According to a preferred embodiment of the present invention, in the conical expanded bottom swirl rainwater outlet, the angle between the annular guide plate and the road surface is 45-60°.

[0010] According to a preferred embodiment of the present invention, in the conical expanded bottom swirl rainwater outlet, the angle between the generatrix of the swirl chamber and the lower bottom surface is 70-90°.

[0011] According to a preferred embodiment of the present invention, in the conical bottom-expanding swirl rainwater outlet, the side wall of the filter chamber is inclined.

[0012] According to a preferred embodiment of the present invention, in the conical bottom-expanding swirl rainwater outlet, the top end of the filter chamber is sunken to form an annular limit groove;

[0013] A support ring, the edge of which is detachably clamped in the limit clamping groove; the slag blocking net is connected to the support ring through a circle of first springs distributed in an annular manner, and the slag blocking net is located at the bottom of the support ring; a cover body is arranged above each mesh hole of the slag blocking net, and each of the cover bodies is arranged above the corresponding mesh hole through a second spring and is a certain distance away from the mesh hole; a plurality of limit rods are arranged between the cover body and the corresponding mesh holes, one end of the limit rod is fixed to the slag blocking net, and the other end faces the cover body;

[0014] A bottom plate is fixed in the filter chamber, the bottom plate is located below the slag blocking net, and the two are parallel to each other; a plurality of dredging teeth are distributed on the bottom plate; the dredging teeth correspond to the mesh holes of the slag blocking net one by one;

[0015] When the mesh holes of the slag blocking net are blocked, the blockage and accumulated water will force the first spring to stretch and deform. When it is stretched to a preset critical value, the mesh holes of the slag blocking net will be poked into by the corresponding dredging teeth, and the dredging teeth will lift up the cover body on the corresponding mesh holes of the slag blocking net, thereby increasing the water flow rate.

[0016] According to a preferred embodiment of the present invention, the bottom plate of the conical expanded bottom swirl gully is a square frame.

[0017] The present invention has at least the following beneficial effects:

[0018] 1. In one embodiment of the present invention, the pollution on the road can be effectively intercepted by the slag net, so as to ensure that the rainwater outlet will not be blocked, solve the surface source pollution, and when cleaning, it is only necessary to take out the slag net and remove the garbage on the slag net, without manual digging.

[0019] 2. In one embodiment of the present invention, the design of the annular guide plate can divert rainwater to the wall of the cyclone chamber and provide a tangential acceleration to the rainwater, so that the rainwater can be fully separated from the solid and liquid in the cyclone chamber under the action of centrifugal force. The outlet pipe is arranged in the tangential direction of the water inlet, which also helps the rainwater to fully stay in the cyclone chamber and enhance the initial rain sand settling effect.

[0020] 3. In one embodiment of the present invention, after separation, clean rainwater flows to the municipal rainwater pipe network, rainwater with more silt enters the silt chamber, and part (about 30% according to experimental verification) of the initial rainwater penetrates into the surrounding soil through the discarded flow pipe on the wall of the silt chamber, purifies the rainwater through soil filtration, and fills gravel around the pipe to speed up the penetration speed and reduce the initial rainwater entering the municipal rainwater pipe. At the same time, the inlet and outlet of the discarded flow pipe are wrapped with permeable geotextiles to prevent blockage, and the discarded water is blocked by the waterproof geotextile and discharged into the green space.

[0021] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a conical bottom-expanding swirl rainwater outlet in a preferred embodiment of the present invention;

[0023] Figure 2 for Figure 1 AA view;

[0024] Figure 3 It is a structural schematic diagram of a filter chamber of a conical bottom-expanding cyclone rainwater outlet in another preferred embodiment of the present invention;

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the figure. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0027] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0028] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0030] like Figure 1-4 As shown, a preferred embodiment of the present invention provides a conical expanded-bottom cyclone rainwater outlet, which includes a filter chamber 1, a cyclone chamber 2 and a sludge chamber 3 from top to bottom; wherein the top of the filter chamber 1 is open, and a first filter device 4 can be detachably installed, and the first filter device 4 is a rainwater grate, and its shape is consistent with the shape of the top opening of the filter chamber 1; the second filter device 5 can also be detachably installed inside the filter chamber 1, and the second filter device 5 is a slag screen; the side wall of the filter chamber 1 is inclined.

[0031] The cyclone chamber 2 is a truncated cone structure with a larger upper portion and a smaller lower portion, and a water outlet 7 is provided on its side wall. An annular guide plate 6 is provided in the cyclone chamber 2 along its inner wall in an annular direction, and the annular guide plate 6 is in an arc shape, and the angle between the annular guide plate 6 and the road surface is 45-60°. The lower end of the annular guide plate 6 faces the water outlet 7 to guide rainwater to the water outlet 7 and discharge it. The angle between the generatrix of the cyclone chamber 2 and the lower bottom surface is 70-90°.

[0032] A plurality of discarded flow pipes 8 are arranged on the side wall of the sludge chamber 3, one end of the discarded flow pipe 8 is connected to the interior of the sludge chamber 3, and the other end is connected to the outside of the discarded flow pipe 8, and both ends of the discarded flow pipe 8 are covered with a filter net, and the filter net here can be made of permeable fabric to allow the flow water to be discharged through the filter net.

[0033] In the above embodiment, the rainwater is first filtered through the rainwater grate, and then the pollution on the road is effectively intercepted by the slag net, so that the rainwater outlet will not be blocked, and the surface source pollution is solved. When cleaning, it is only necessary to take out the slag net and remove the garbage on the slag net, without manual digging. The design of the annular guide plate 6 can divert rainwater to the wall of the cyclone chamber 2, and provide a tangential acceleration to the rainwater, so that the rainwater can be fully separated from the solid and liquid in the cyclone chamber under the action of centrifugal force. The outlet pipe is set in the tangential direction of the water inlet, which also helps the rainwater to stay fully in the cyclone chamber and enhance the initial rain sand settling effect.

[0034] After separation, clean rainwater flows to the municipal rainwater pipe network, rainwater with more silt enters the silt chamber 3, and part (about 30% according to experimental verification) of the initial rainwater penetrates into the surrounding soil through the discarded flow pipe 8 on the wall of the silt chamber 3, purifies the rainwater through soil filtration, and fills gravel around the pipe to speed up the penetration speed and reduce the initial rainwater entering the municipal rainwater pipe. At the same time, the inlet and outlet of the discarded flow pipe 8 are wrapped with permeable geotextiles to prevent blockage, and the discarded water is blocked by the waterproof geotextile and discharged into the green space.

[0035] For a 30m wide hardened road, the initial rainwater purification and interception rate is 50%, the theoretical calculation is as follows:

[0036] With the goal of intercepting 50% of the initial rainwater, calculate the height to which the bottom of the rainwater outlet sinks.

[0037]

[0038] in,

[0039] Q—the total amount of initial rainwater at each rainwater outlet, m 3 ;

[0040] L—the distance between two rainwater inspection wells, m, which is 30 in this calculation;

[0041] B—Road width, m, 30 for this calculation;

[0042] h—initial rainfall, mm, in this calculation, 4 is taken;

[0043] n—the number of rainwater outlets between two rainwater inspection wells, in this calculation, it is 4.

[0044]

[0045] H--height of the bottom of the rainwater outlet, m;

[0046] Q—the total amount of initial rainwater at each rainwater outlet, m 3 ;

[0047] A—Cross-sectional area of ​​cylindrical rainwater outlet, m 2 , the diameter of the rainwater outlet sinking section is assumed to be 0.8m.

[0048] k—abandonment coefficient, which is set to 30% in this calculation

[0049] The calculation result is that under the above conditions, the height of the sedimentation well 3 is 0.6m, which can achieve 50% initial rainwater purification and interception rate. Therefore, in actual application, the height of the sedimentation well 3 can be designed to be 0.6m.

[0050] According to another preferred embodiment of the present invention, in the conical bottom-expanding swirl rainwater outlet, the top end of the filter chamber 1 is sunken to form an annular limit groove 10;

[0051] A support ring 11, the edge of which is detachably mounted in the limit slot 10; the slag blocking net (i.e., the second filter device 5) is connected to the support ring 11 via a circle of first springs 12 distributed in an annular manner, and the slag blocking net (i.e., the second filter device 5) is located at the bottom of the support ring 11; a cover body 13 is arranged above each mesh hole of the slag blocking net (i.e., the second filter device 5), and each of the cover bodies 13 is arranged above the corresponding mesh hole via a second spring 14 and is at a certain distance from the mesh hole; a plurality of limit rods 15 are arranged between the cover body 13 and the corresponding mesh holes, one end of the limit rod 15 is fixed to the slag blocking net (i.e., the second filter device 5), and the other end faces the cover body 13;

[0052] The bottom plate 16 is fixed in the filter chamber 1, and the bottom plate is located below the slag blocking net (i.e., the second filter device 5), and the two are parallel to each other; a plurality of dredging teeth 17 are distributed on the bottom plate 16; the dredging teeth 17 correspond one-to-one to the mesh holes of the slag blocking net (i.e., the second filter device 5); the bottom plate 16 is a square frame.

[0053] When the mesh holes of the slag blocking net (i.e., the second filter device 5) are blocked, the blockage and accumulated water will force the first spring to stretch and deform. When it is stretched to a preset critical value, the mesh holes of the slag blocking net (i.e., the second filter device 5) will be poked into by the corresponding dredging teeth, and the dredging teeth 17 will lift up the cover body 13 on the mesh holes of the corresponding slag blocking net (i.e., the second filter device 5), thereby increasing the water flow rate.

[0054] In the above embodiment, when the mesh of the slag blocking net (i.e., the second filter device 5) is clogged by impurities, water cannot be discharged normally, which will cause the weight of the slag blocking net (i.e., the second filter device 5) to increase, and the first spring 12 will be deformed and stretched. Figure 2 As shown, the slag blocking net (i.e., the second filtering device 5) will move downward, and the dredging teeth 17 on the bottom plate 16 below it will poke into the corresponding mesh holes of the slag blocking net, automatically clearing the blockage of the slag blocking net; and at this time, the cover body 13 is suspended above the mesh holes by the second spring 14, which can provide certain protection for the mesh holes and avoid their blockage. When the dredging teeth 17 on the bottom plate 16 poke into the corresponding mesh holes of the slag blocking net, the dredging teeth 17 will lift up the cover body 13, which will further facilitate the dredging; and the setting of the limit rod 15 can prevent the cover body from being crushed due to excessive accumulation of impurities, thereby preventing the mesh holes from being blocked.

[0055] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A conical bottom-expanding swirl rainwater outlet, characterized in that: It includes a filter chamber, a cyclone chamber and a sludge chamber from top to bottom; wherein the top of the filter chamber is open, and a first filter device can be detachably installed; and a second filter device can be detachably installed inside the filter chamber; The side wall of the cyclone chamber is provided with a water outlet, and an annular guide plate is arranged in the cyclone chamber along the inner wall thereof in an annular direction and tilted, and the lower end of the annular guide plate faces the water outlet to guide rainwater to the water outlet and discharge it; The cyclone chamber is a truncated cone-shaped structure with a larger top and a smaller bottom. The angle between the annular guide plate and the road surface is 45-60°; The included angle between the generatrix of the cyclone chamber and the lower bottom surface is 70-90°; The water outlet is arranged in the tangent direction of the water inlet of the filter chamber; The annular guide plate is in the shape of an arc; The side wall of the filter chamber is inclined.

2. The conical bottom-expanding swirl rainwater outlet according to claim 1, characterized in that: The first filtering device is a rainwater grate, and its shape is consistent with the shape of the top opening of the filtering chamber.

3. The conical bottom-expanding swirl rainwater outlet according to claim 1, characterized in that: The second filtering device is a slag blocking net.

4. The conical bottom-expanding swirl gully according to claim 3, characterized in that: The top of the filter chamber is sunken to form an annular limiting groove; A support ring, the edge of which is detachably clamped in the limit clamping groove; the slag blocking net is connected to the support ring through a circle of first springs distributed in an annular manner, and the slag blocking net is located at the bottom of the support ring; a cover body is arranged above each mesh hole of the slag blocking net, and each of the cover bodies is arranged above the corresponding mesh hole through a second spring and is a certain distance away from the mesh hole; a plurality of limit rods are arranged between the cover body and the corresponding mesh holes, one end of the limit rod is fixed to the slag blocking net, and the other end faces the cover body; A bottom plate is fixed in the filter chamber, the bottom plate is located below the slag blocking net, and the two are parallel to each other; a plurality of dredging teeth are distributed on the bottom plate; the dredging teeth correspond to the mesh holes of the slag blocking net one by one; When the mesh holes of the slag blocking net are blocked, the blockage and accumulated water will force the first spring to stretch and deform. When it is stretched to a preset critical value, the mesh holes of the slag blocking net will be poked into by the corresponding dredging teeth, and the dredging teeth will lift up the cover body on the corresponding mesh holes of the slag blocking net, thereby increasing the water flow rate.

5. The conical bottom-expanding swirl gully according to claim 4, characterized in that: The bottom plate is a square frame.

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