Building first rain discarding and purifying device

By designing a building-based rainwater diversion and purification device, and using a diversion plate and purification box to treat the initial rainwater, the problem of pollutants entering the water body in the initial rainwater is solved, achieving a balance between purification effect and rapid drainage. The structure is simple and low in cost.

CN223951903UActive Publication Date: 2026-02-27CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
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Patent Information

Application Number
CN202520348659.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-27
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Building rainwater drainage systems that directly discharge into municipal pipe networks cause initial rainwater pollutants to enter water bodies, resulting in water pollution. Existing technologies have not been able to effectively solve this problem.

Method used

Design a building rainwater diversion and purification device, including a diversion box, a purification box, and a regulating water tank. Rainwater is diverted to different chambers by a diversion plate. Initial rainwater enters the purification box for purification treatment, and subsequent rainwater directly enters the regulating water tank. The device has a simple structure and low cost.

Benefits of technology

It achieves initial rainwater purification while not affecting rapid drainage during heavy rainfall. It has a simple structure, is easy to use, and is low in cost.

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Abstract

The utility model discloses a building first rain discarding and purifying device which comprises a flow dividing box, a purifying box and a regulation and storage water tank, a water inlet pipe is arranged at the top of the flow dividing box, the water inlet pipe is used for being connected with a building rainwater drainage pipe, a flow dividing plate is arranged in the flow dividing box and obliquely arranged below an outlet of the water inlet pipe, and the water inlet pipe is connected with the purifying box. The interior of the flow dividing box is divided into a first cavity and a second cavity by the flow dividing plate, a lower side cavity of the flow dividing plate is the first cavity, an upper side cavity of the flow dividing plate is the second cavity, a water passing hole is formed in the flow dividing plate, an inlet of the purification box is connected with the first cavity, an outlet of the purification box is connected with the water storage regulation box, and the water storage regulation box is connected with the water storage regulation box. The regulation and storage water tank is connected with the second cavity, and is connected with a municipal pipe network. By arranging the device in a building rainwater drainage system, initial rainwater can be purified, meanwhile, the rapid drainage requirement during heavy rainfall is not affected, and the device is simple in structure, convenient to use and low in cost.
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Description

TECHNICAL FIELD

[0001] The utility model relates to rainwater treatment technical field, concretely relates to a building initial rain discarding flow and purification device. BACKGROUND

[0002] At present, the building rainfall drainage system is usually connected with the municipal pipe network, and the untreated rainwater is directly discharged into the stream, river and bay, and the rainwater pollution is self-purified by nature. Since the initial rainwater generally contains pollutants, after being directly discharged through the municipal pipe network, the pollutants are brought into the water body, which is easy to cause water pollution, such as possibly leading to a large amount of organic compounds and nitrate and phosphorus in the water body, and finally endangering human life. Therefore, it is necessary to provide a rainwater treatment device in the building drainage system. SUMMARY

[0003] The utility model aims at: in view of the problem that the building rainwater drainage brings pollutants into the water body, provide a kind of building initial rain discarding flow and purification device, this device can be purified to initial rainwater when raining, simultaneously again not to influence the quick drainage demand of heavy rainfall, simple structure, convenient to use, low in cost.

[0004] The utility model discloses a technical scheme as follows:

[0005] The utility model provides a kind of building initial rain discarding flow and purification device, including shunt box, purification tank and regulating water tank, the shunt box top is provided with inlet pipe, the inlet pipe is used to be connected with building rainwater drainage pipe, the shunt box is provided with shunt plate, the shunt plate is arranged in the shunt box outlet below, the shunt plate separates the first cavity and the second cavity in the shunt box, the shunt plate lower side chamber is the first cavity, the shunt plate upper side chamber is the second cavity, the shunt plate is provided with water pass hole, the purification tank inlet is connected with the first cavity, the purification tank outlet is connected with the regulating water tank, the regulating water tank is connected with the second cavity, the regulating water tank is connected with municipal pipe network.

[0006] As a preferred scheme of the utility model, the shunt box bottom is equipped with first outlet pipe and second outlet pipe, the first outlet pipe is connected with the first cavity, the second outlet pipe is connected with the second cavity, the purification tank top is connected with the first outlet pipe, and the regulating water tank top is connected with the second outlet pipe.

[0007] As a preferred scheme of the utility model, the water pass hole on the shunt plate gradually reduces in size from the top to the bottom of the shunt plate.

[0008] As a preferred scheme of the utility model, the shape of the water pass hole includes square hole, round hole or strip hole.

[0009] As a preferred scheme of the utility model, the inner wall of the water inlet pipe is provided with a water guide strip in an inclined manner, the water guide strip is in an unsealed ring structure, the gap of the water guide strip is at the low end and above the top of the distribution plate.

[0010] As a preferred scheme of the utility model, the cross section of the water guide strip is in a right triangle and the water surface of the water guide strip is in an inclined surface.

[0011] As a preferred scheme of the utility model, the purification tank is provided with a purification filter element, the purification filter element comprises a coarse filter element and a fine filter element arranged in sequence along the water flow direction.

[0012] As a preferred scheme of the utility model, the upper surface of the coarse filter element is provided with a buffer chamber with the top of the purification tank.

[0013] As a preferred scheme of the utility model, the bottom of the purification tank is connected with the storage tank through a purification drain pipe, and the outlet of the purification drain pipe is provided with a check valve.

[0014] As a preferred scheme of the utility model, the water inlet pipe is connected with the building rainwater drainage pipe through a threaded connecting piece.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] In use, the initial rainwater enters the distribution tank from the building rainwater drainage pipe through the water inlet pipe and flows down along the distribution plate, in the process, the initial rainwater is collected into the first cavity through the water hole and then enters the purification tank for purification treatment and is collected into the storage tank and is discharged by the municipal pipe network; when the water volume is large in the later period, part of the rainwater directly enters the second cavity and is collected into the storage tank and is discharged by the municipal pipe network; the device can purify the initial rainwater and does not affect the rapid drainage requirement in heavy rain, has simple structure, is convenient to use and low in cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the example embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, other related drawings can also be obtained according to these drawings without the creative labor.In the drawings:

[0018] Fig. 1 It is the building initial rainwater abandoned flow and purification device schematic view in the utility model;

[0019] Fig. 2 It is the distribution plate plane schematic view in the utility model;

[0020] Fig. 3 It is a water guide bar cross section schematic view in the utility model.

[0021] Markings in the drawings and corresponding component names:

[0022] 1- flow distribution box, 11- water inlet pipe, 111- water guide bar, 12- flow distribution plate, 121- water passing hole, 13- first cavity, 14- second cavity, 15- first water outlet pipe, 16- second water outlet pipe, 2- purification tank, 21- purification filter element, 211- coarse filter element, 212- fine filter element, 22- purification water outlet pipe, 23- check valve, 3- water storage tank, 4- building rainwater drainage pipe, 5- municipal pipe network, 6- threaded connecting piece, 7- partition wall. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clearly and clearly, the utility model is further described in detail below combined with examples and drawings, the schematic implementation mode of the utility model and its description are only used for explaining the utility model, and are not as the limitation of the utility model.

[0024] 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 belongs; the terminology used in the specification herein is for describing the specific embodiments only and not intended to limit the application; the terms "include" and "have" and any variations thereof in the specification and claims of the application and the above description of drawings are intended to cover the non-exclusive inclusion.

[0025] In the description of the embodiments of the application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0026] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] In the description of the embodiments of the application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A, A and B, and B. In addition, the character " / " in this paper generally represents a "or" relationship between the front and rear associated objects.

[0028] In the embodiments of the present application, the same reference signs represent the same components, and for the sake of brevity, detailed description of the same components is omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application and the overall thickness, length, width and other dimensions of the integrated device shown in the drawings are only exemplary and should not constitute any limitation on the present application.

[0029] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces), unless otherwise explicitly specified and limited.

[0030] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0031] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0032] Please refer to Figs. 1 to 3The building initial rainwater flow rejection and purification device provided in the embodiment of the application comprises a flow distribution box 1, a purification box 2 and a water storage tank 3. The top of the flow distribution box 1 is provided with a water inlet pipe 11, the water inlet pipe 11 is used to be connected with a building rainwater drainage pipe 4, a flow distribution plate 12 is arranged in the flow distribution box 1, the flow distribution plate 12 is arranged obliquely below the outlet of the water inlet pipe 11, the flow distribution plate 12 divides the flow distribution box 1 into a first cavity 13 and a second cavity 14, the lower side cavity of the flow distribution plate 12 is the first cavity 13, the upper side cavity of the flow distribution plate 12 is the second cavity 14, the flow distribution plate 12 is provided with a water passing hole 121, the inlet of the purification box 2 is connected with the first cavity 13, the outlet of the purification box 2 is connected with the water storage tank 3, the water storage tank 3 is connected with the second cavity 14, and the water storage tank 3 is further connected with a municipal pipe network 5.

[0033] In the embodiment, the flow distribution box 1 is rectangular in shape, the flow distribution plate 12 is rectangular in shape, the two sides of the flow distribution plate 12 are sealingly connected with the two side walls of the flow distribution box 1, and the top end and the bottom end of the flow distribution plate 12 are sealingly connected with the top wall and the bottom wall of the flow distribution box 1, so as to divide the flow distribution box 1 into the first cavity 13 and the second cavity 14. Since the flow distribution plate 12 is arranged obliquely and the high end of the flow distribution plate 12 is below the outlet of the water inlet pipe 11, the rainwater from the water inlet pipe 11 falls on the high end of the flow distribution plate 12 and then flows down along the flow distribution plate 12 to the low end.

[0034] Since the flow distribution plate 12 is provided with the water passing hole 121, the rainwater can enter the first cavity 13 through the water passing hole 121 during the process of flowing down along the flow distribution plate 12, and part of the rainwater can enter the second cavity 14 when the water volume is large, so as to realize the flow distribution effect. In this way, the collection and purification of the initial rainwater are not affected, and the drainage of the large water volume in the later period is not affected.

[0035] When the initial rainwater is used, the initial rainwater enters the flow distribution box 1 from the building rainwater drainage pipe 4 through the water inlet pipe 11 and flows down along the flow distribution plate 12, in the process, the initial rainwater is collected in the first cavity 13 through the water passing hole 121 and then enters the purification box 2 to be purified and is collected in the water storage tank 3, and then is drained away by the municipal pipe network 5; when the water volume in the later period is large, part of the rainwater directly enters the second cavity 14 and then is collected in the water storage tank 3 and is drained away by the municipal pipe network 5; the device can purify the initial rainwater and does not affect the rapid drainage requirement in the heavy rain, has a simple structure, is convenient to use and has low cost.

[0036] According to some embodiments of the present application, the bottom of the flow distribution box 1 is provided with a first water outlet pipe 15 and a second water outlet pipe 16, the inlet of the first water outlet pipe 15 is communicated with the first cavity 13, the inlet of the second water outlet pipe 16 is communicated with the second cavity 14, the top of the purification tank 2 is connected with the outlet of the first water outlet pipe 15, and the top of the water storage tank 3 is connected with the outlet of the second water outlet pipe 16.

[0037] With the above scheme, the rainwater flowing into the first cavity 13 is purified in the purification tank 2 through the first water outlet pipe 15, and then is discharged by the municipal pipe network 5 into the water storage tank 3, and the rainwater flowing into the second cavity 14 is also discharged by the municipal pipe network 5 into the water storage tank 3 through the second water outlet pipe 16. Of course, a partition wall 7 can be arranged between the water storage tank 3 and the purification tank 2 to separate them.

[0038] According to some embodiments of the present application, the water passing holes 121 on the flow distribution plate 12 gradually decrease in size from the top to the bottom of the flow distribution plate 12. With the above scheme, the water passing holes 121 distributed near the high end of the flow distribution plate 12 are larger, and the water passing holes 121 distributed near the low end of the flow distribution plate 12 are smaller, which is beneficial to the initial rainwater to flow into the first cavity 13 through the large water passing holes 121 as soon as possible, so that most of the initial rainwater can enter the purification tank 2. When the water volume is large in the later period, part of the rainwater will flow to the middle and lower part of the flow distribution plate 12, and due to the small and dense water passing holes 121 near the bottom of the second cavity 14, only a small part of the rainwater will enter the purification tank 2 through the water passing holes 121 of the middle and lower part of the flow distribution plate 12, so that the rainwater flows into the bottom of the second cavity 14.

[0039] According to some embodiments of the present application, the shape of the water passing hole 121 includes a square hole, a circular hole or a strip-shaped hole. Of course, the water passing hole 121 can also adopt other feasible shapes, such as a triangular hole, a pentagonal hole, a hexagonal hole, etc.

[0040] According to some embodiments of the present application, the inner wall of the water inlet pipe 11 is obliquely provided with a water guide strip 111, the water guide strip 111 is in an unsealed ring structure, the gap of the water guide strip 111 is located at the low end and is above the top of the flow distribution plate 12. Since the initial rainwater usually flows down along the pipe wall of the water inlet pipe 11, the initial rainwater can be guided to the top end of the flow distribution plate 12 with the aid of the water guide strip 111, so that the initial rainwater can flow into the first cavity 13 through the large water passing holes 121 on the upper part of the flow distribution plate 12 as soon as possible.

[0041] According to some embodiments of the present application, the cross section of the water guide strip 111 is a right triangle, and the water-approaching surface of the water guide strip 111 is an inclined surface. In this way, a better water guiding effect can be obtained.

[0042] According to some embodiments of the present application, the purification tank 2 is provided with a purification filter core 21, which comprises a coarse filter core 211 and a fine filter core 212 arranged in sequence along the water flow direction. By using the purification filter core 21, the pollutants in the initial rainwater can be purified, and the filter core replacement cost can be reduced due to the combined use of the coarse filter core 211 and the fine filter core 212.

[0043] According to some embodiments of the present application, the upper surface of the coarse filter core 211 and the top of the purification tank 2 have a buffer chamber, and the lower surface of the fine filter core 212 and the bottom of the purification tank 2 also have a buffer chamber.

[0044] According to some embodiments of the present application, the bottom of the purification tank 2 is connected to the side of the storage tank 3 through a purification drain pipe 22, and the outlet of the purification drain pipe 22 is provided with a check valve 23. The rainwater treated by the purification tank 2 can be collected into the storage tank 3 through the purification drain pipe 22 and then discharged through the municipal pipe network 5. Since the check valve 23 is arranged at the outlet of the purification drain pipe 22, the outflow of the purified rainwater is not affected, and the reverse flow of mosquitoes and foul smell into the purification tank 2 is prevented.

[0045] According to some embodiments of the present application, the water inlet pipe 11 is connected to the building rainwater drain pipe 4 through a threaded connector 6. The threaded connector 6 is a commonly used connection method between the pipe segments of the building rainwater drain pipe 4, and this connection method facilitates the assembly and disassembly of the treatment device in the present application.

[0046] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A building first-rain flush and purification device, characterized by, The utility model relates to a rainwater purifying and storing device, which comprises a shunt box, a purifying box and a storage tank.

2. The construction first flush and purification device according to claim 1, characterized in that, The shunt box is provided with a water inlet pipe at the top, which is connected with the building rainwater drainage pipe.

3. The construction first flush and purification device according to claim 1, characterized in that, The shunt plate is arranged obliquely below the outlet of the water inlet pipe.

4. The construction initial rain flush and purification device according to claim 3, characterized by, The shunt plate separates the shunt box into a first cavity and a second cavity.

5. The construction first flush and purification device according to claim 1, wherein The shunt plate is provided with water passing holes.

6. The construction initial rain flush and purification device according to claim 5, characterized in that, The inlet of the purifying box is connected with the first cavity.

7. The construction first flush and purification device, as claimed in claim 1, wherein The outlet of the purifying box is connected with the storage tank.

8. The construction initial rain flush and purification device according to claim 7, characterized in that, The storage tank is connected with the second cavity.

9. The construction first flush and purification device, as claimed in claim 1, wherein, The storage tank is connected with the municipal pipe network.

10. The construction first flush and purification device according to claim 1, wherein The shunt box is provided with a first water outlet pipe and a second water outlet pipe at the bottom. The first water outlet pipe is connected with the first cavity. The second water outlet pipe is connected with the second cavity. The top of the purifying box is connected with the first water outlet pipe. The top of the storage tank is connected with the second water outlet pipe. The size of the water passing holes on the shunt plate gradually decreases from the top to the bottom of the shunt plate. The shape of the water passing holes includes square holes, circular holes or strip-shaped holes. The inner wall of the water inlet pipe is provided with a water guide strip obliquely. The water guide strip is in an open loop structure. The gap of the water guide strip is located at the low end and above the top of the shunt plate. The cross section of the water guide strip is a right triangle. The water-approaching surface of the water guide strip is an inclined surface. The purifying box is provided with a purifying filter element. The purifying filter element comprises a coarse filter element and a fine filter element arranged in sequence along the water flow direction. The upper surface of the coarse filter element is provided with a buffer cavity. The bottom of the purifying box is connected with the storage tank through a purifying drainage pipe. The outlet of the purifying drainage pipe is provided with a check valve. The water inlet pipe is connected with the building rainwater drainage pipe through a threaded connecting piece.