Rainwater well capable of reducing first rain pollutants

Abstract

The catch basin capable of reducing the first rain pollutants comprises an intercepting chamber, a purifying chamber and a water outlet channel, and the intercepting chamber is used for collecting rainwater; the purifying chamber is communicated with the intercepting chamber and comprises a purifying area, and an active filler and a filtering group material which are arranged in the purifying area at intervals; the water outlet channel is communicated with the purification chamber; and when the water level in the intercepting chamber rises, the rainwater with high pollution concentration in the intercepting chamber flows into the purifying chamber, is purified by the active filler and the filter group material in the purifying area and flows to the water outlet channel. When the water level in the intercepting chamber rises, rainwater with high pollution concentration flows into the purifying chamber, the rainwater in the purifying area is purified by the active filler and the filter group material, various pollutants such as suspended solids, heavy metals and organic pollutants in the water are removed, and the pollutant concentration of the rainwater is remarkably reduced. And the purified rainwater is discharged through the water outlet channel and enters an urban drainage system or a natural water body. Therefore, initial rainwater pollutant concentration is reduced, and urban black and odorous water is treated.

Description

Technical Field

[0001] The present application relates to the field of drainage technology, and in particular to a rainwater well for reducing pollutants from initial rain. Background Art

[0002] Without effective treatment measures, rainfall in cities will flow directly into drainage systems or natural water bodies. These rainwaters carry a large amount of surface pollutants, including air pollutants, road dust, garbage, etc., and enter the city's water circulation system without treatment, which is easy to cause environmental pollution.

[0003] This untreated rainwater runoff is particularly serious in the early rain stage. The initial rainfall will bring a large amount of pollutants accumulated on the ground into the drainage system. These high-concentration pollutants directly enter the natural water bodies, not only polluting the water bodies, but also causing eutrophication of the water bodies, leading to the proliferation of algae, deterioration of water quality, and even the formation of black and smelly water bodies, affecting the urban ecological environment and the health of residents.

[0004] Therefore, it is necessary to propose a rainwater well that reduces initial rain pollutants, which can treat initial rainwater, reduce the concentration of initial rainwater pollutants, reduce the pollutant load entering natural water bodies, control urban black and smelly water bodies, improve the ecological environment of water bodies, and contribute to the sustainable development of cities. Utility Model Content

[0005] The purpose of this application is to overcome the deficiencies in the prior art and to propose a rainwater well that reduces pollutants in initial rain, which can treat initial rainwater, reduce the concentration of pollutants in initial rainwater, and treat urban black and smelly water bodies.

[0006] This application is implemented through the following technical solutions:

[0007] The present application proposes a rainwater well for reducing pollutants from initial rain, comprising:

[0008] interception chambers to collect rainwater;

[0009] A purification chamber is connected to the interception chamber, and the purification chamber includes a purification area, and active fillers and filter components are separately arranged in the purification area;

[0010] A water outlet channel, connected to the purification chamber;

[0011] When the water level in the interception chamber rises, rainwater with high pollution concentration in the interception chamber flows into the purification chamber, is purified by the active fillers and filter group materials in the purification area, and flows to the water outlet channel.

[0012] In one embodiment of the present application, the filter material group includes large particle filter material, medium particle filter material, and small particle filter material which are arranged separately;

[0013] Rainwater with high pollution concentration flows into active filler, large particle filter material, medium particle filter material, small particle filter material, large particle filter material, medium particle filter material, small particle filter material and active filler in sequence to purify rainwater with high pollution concentration and flow it to the outlet channel.

[0014] In one embodiment of the present application, the clean room further comprises:

[0015] A water retaining baffle is arranged in the purification area to separate the purification area into a first column and a second column. A water flow trough is arranged at the bottom of the purification area, and the water flow trough is respectively connected with the first column and the second column;

[0016] A plurality of water-permeable baffles are respectively arranged in the first column and the second column, active fillers, large particle filter materials, medium particle filter materials, and small particle filter materials are respectively arranged in the first column and the second column, and the active fillers, large particle filter materials, medium particle filter materials, small particle filter materials, and water flow channels are all separated from top to bottom by the water-permeable baffles;

[0017] Rainwater with high pollution concentration flows into active filler, large particle filter material, medium particle filter material, small particle filter material, the water flow trough, large particle filter material, medium particle filter material, small particle filter material, and active filler in sequence to purify the rainwater with high pollution concentration and flow it to the water outlet channel.

[0018] In one embodiment of the present application, the plurality of water-permeable partitions are provided with filter holes to facilitate the water in the purification area to flow along the first column, the water flow trough and the second column.

[0019] In one embodiment of the present application, the purification chamber further comprises an overflow water channel, which is respectively connected to the interception chamber and the purification area;

[0020] One end of the water retaining baffle extends into the purification area, and the other end is arranged in the overflow water outlet channel and abuts against the top wall of the overflow water outlet channel to divide the overflow water outlet channel into a first overflow water outlet channel and a second overflow water outlet channel;

[0021] The rainwater in the interception chamber flows into the first overflow water outlet channel and the purification area in sequence, so that the rainwater with high pollution concentration is purified and flows to the second overflow water outlet channel and the water outlet channel in sequence.

[0022] In one embodiment of the present application, the water outlet channel includes a first water outlet channel and a second water outlet channel, and the first water outlet channel is located below the second water outlet channel;

[0023] When the water level of the second overflow outlet channel rises, the rainwater flows to the first outlet channel;

[0024] When the water level of the second overflow outlet channel floods the first outlet channel, rainwater with a low pollution concentration flows to the second outlet channel.

[0025] In one embodiment of the present application, the water outlet channel further includes a third water outlet channel, one end of the third water outlet channel is connected to the interception chamber, and the other end is connected to the first water outlet channel and the second water outlet channel, and the third water outlet channel is located below the overflow water outlet channel, and the rainwater well for reducing initial rain pollutants also includes a water retaining mechanism, which is arranged in the interception chamber, and the water retaining mechanism includes:

[0026] A floating ball is arranged in the interception chamber;

[0027] The transmission structure comprises a transmission rod, a shielding member and a fixing rod, one end of the transmission rod is rotatably connected to the shielding member, and the other end is fixedly connected to the float, one end of the fixing rod is arranged at the well wall in the intercepting chamber, and the other end is rotatably connected to the transmission rod, and the shielding member is attached to the well wall in the intercepting chamber;

[0028] The connection point between the fixing rod and the transmission rod is defined as a connection point. When the water level in the intercepting chamber rises and contacts the floating ball, the floating ball floats up, and the transmission rod rotates along the connection point to drive the shielding member to move downward and shield the third water outlet channel.

[0029] When the water level in the intercepting chamber drops, the float falls, and the transmission rod rotates in the opposite direction along the connection point to drive the shielding member to move upward, and the shielding member moves away from the third water outlet channel to connect the intercepting chamber with the third water outlet channel.

[0030] In one embodiment of the present application, the float, the transmission rod and the shielding member are all made of light materials.

[0031] In one embodiment of the present application, the rainwater well for reducing initial rain pollutants also includes a combined water inlet channel, which is connected to the interception chamber, and external rainwater is gathered through the combined water inlet channel and flows into the interception chamber.

[0032] In one embodiment of the present application, a first wellhead and a first well cover are provided above the interception chamber, the first wellhead is located above the overflow water outlet channel, and the first well cover can be provided on the first wellhead;

[0033] A second wellhead and a second well cover are provided above the purification chamber. The second wellhead is located above the overflow water channel, and the second well cover can be provided on the second wellhead.

[0034] Compared with the prior art, the beneficial effects of this application are:

[0035] The purification chamber is connected to the interception chamber, and the purification chamber includes a purification area, and the active fillers and filter groups are arranged separately in the purification area; the water outlet channel is connected to the purification chamber; the initial rainwater causes the water level in the interception chamber to rise rapidly. When the water level in the interception chamber rises, rainwater with high pollution concentration will flow into the purification chamber. The rainwater in the purification area is purified by the active fillers and filter groups to remove various pollutants such as suspended matter, heavy metals, and organic pollutants in the water, significantly reducing the pollutant concentration of the rainwater. The purified rainwater is discharged through the water outlet channel and enters the urban drainage system or natural water body. Thereby reducing the concentration of pollutants in the initial rainwater and treating urban black and smelly water bodies.

[0036] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram of a rainwater well for reducing initial rain pollutants provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of a clean room provided in accordance with an embodiment of the present application.

[0040] Description of reference numerals:

[0041] 10. A rainwater well for reducing pollutants in the initial rain; 100. A interception chamber; 110. A first manhole cover; 200. A purification chamber; 210. A purification zone; 211. An active filler; 212. A filter material for large particles; 213. A filter material for medium particles; 214. A filter material for small particles; 215. A first row; 216. A second row; 217. A water flow channel; 220. A water retaining baffle; 230. A water permeable baffle; 241. A first overflow water outlet channel; 242. A second overflow water outlet channel; 250. A second manhole cover; 310. A first water outlet channel; 320. A second water outlet channel; 330. A third water outlet channel; 400. A water retaining mechanism; 410. A floating ball; 421. A transmission rod; 422. A shielding member; 423. A fixing rod; 500. A combined water inlet channel. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0044] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0045] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0047] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0048] Please refer to Figure 1 to Figure 2 The present application proposes a rainwater well 10 for reducing pollutants in initial rain, comprising an interception chamber 100, a purification chamber 200 and a water outlet channel (not marked in the figure), wherein the interception chamber 100 is used to collect rainwater; the purification chamber 200 is connected to the interception chamber 100, and the purification chamber 200 comprises a purification area 210, and active fillers 211 and filter groups (not marked in the figure) are separated and arranged in the purification area 210; the water outlet channel is connected to the purification chamber 200; when the water level in the interception chamber 100 rises, rainwater with a high pollution concentration in the interception chamber 100 flows into the purification chamber 200, is purified by the active fillers 211 and the filter groups in the purification area 210, and flows to the water outlet channel.

[0049] Specifically, the interception chamber 100 is used to collect rainwater generated by initial rainfall. The interception chamber 100 is designed to quickly collect and temporarily store initial rainwater. The interception chamber 100 is connected to the purification chamber 200, and a purification area 210 is provided in the purification chamber 200. Active fillers 211 and filter groups are arranged separately in the purification area 210. The purification chamber 200 is connected to the water outlet channel, and the purified rainwater is finally discharged through the water outlet channel. The design of the water outlet channel ensures that the purified rainwater can be smoothly discharged into the drainage system or natural water body, further reducing environmental pollution. At the beginning of the heavy rain, the water level in the interception chamber 100 will rise rapidly. When the water level in the interception chamber 100 rises, rainwater with a high pollution concentration will flow into the purification chamber 200. The rainwater in the purification chamber 200 is purified by the active filler 211 and the filter group to remove various pollutants such as suspended matter, heavy metals, and organic pollutants in the water, significantly reducing the pollutant concentration of the rainwater. The purified rainwater is discharged through the outlet channel and enters the urban drainage system or natural water body.

[0050] It should be understood that the traditional rainwater management system cannot effectively treat rainwater with high pollution concentration in the initial rainfall stage, resulting in a large amount of pollutants directly entering the drainage system, causing serious pollution to natural water bodies. In the present application, through multiple purification methods such as interception by the interception chamber 100, layered filtration by the purification chamber 200, and adsorption by the active filler 211, the high concentration of pollutants in the initial rainwater is treated in a targeted manner, significantly reducing its negative impact on the environment.

[0051] In one embodiment, the filter material group includes large particle filter material 212, medium particle filter material 213, and small particle filter material 214 that are separated and arranged; rainwater with high pollution concentration flows into active filler 211, large particle filter material 212, medium particle filter material 213, small particle filter material 214, large particle filter material 212, medium particle filter material 213, small particle filter material 214, and active filler 211 in sequence to purify the rainwater with high pollution concentration and flow it to the outlet channel.

[0052] Specifically, the interception chamber 100 is connected to the purification chamber 200, and a purification area 210 is provided in the purification chamber 200. Multiple layers of filter materials are arranged separately in the purification area 210, including large particle filter materials 212, medium particle filter materials 213, small particle filter materials 214, and active fillers 211. The filter materials are arranged in layers in the order of large particle filter materials 212, medium particle filter materials 213, and small particle filter materials 214 to form a step-by-step filtration system. The rainwater flows through the active filler 211, large particle filter materials 212, medium particle filter materials 213, small particle filter materials 214, and then large particle filter materials 212, medium particle filter materials 213, small particle filter materials 214 and active fillers 211 again, ensuring multiple filtering effects and further purifying the rainwater.

[0053] It should be noted that the active filler 211 is used for primary adsorption of organic matter and heavy metals in rainwater with high pollution concentration; the large particle filter material 212 is used to remove large particle pollutants in rainwater; the medium particle filter material 213 is used to remove medium particle pollutants in rainwater; and the small particle filter material 214 is used to remove small particle pollutants in rainwater.

[0054] In one embodiment, the purification chamber 200 further includes a water retaining baffle 220 and a plurality of water permeable baffles 230, the water retaining baffle 220 is arranged in the purification area 210 to separate the purification area 210 into a first column 215 and a second column 216; a water flow trough 217 is arranged at the bottom of the purification area 210, and the water flow trough 217 is respectively connected to the first column 215 and the second column 216; the plurality of water permeable baffles 230 are respectively arranged in the first column 215 and the second column 216, and the active filler 211, the large particle filter material 212, the medium particle filter material 213, and the small particle filter material 214 are respectively arranged The first column 215 and the second column 216, the active filler 211, the large particle filter material 212, the medium particle filter material 213, the small particle filter material 214 and the water flow trough 217 are separated up and down by the permeable partition 230; the rainwater with high pollution concentration flows into the active filler 211, the large particle filter material 212, the medium particle filter material 213, the small particle filter material 214, the water flow trough 217, the large particle filter material 212, the medium particle filter material 213, the small particle filter material 214 and the active filler 211 in sequence to purify the rainwater with high pollution concentration and flow it to the water outlet channel.

[0055] Specifically, the interception chamber 100 is connected to the purification chamber 200, and a purification area 210 is provided in the purification chamber 200, and a multi-level purification structure is formed by a water retaining baffle 220, a water flow trough 217 and a plurality of water permeable baffles 230. The water retaining baffle 220 is arranged in the purification area 210, and the purification area 210 is divided into a first column 215 and a second column 216. This design enables rainwater to be diverted and purified between two independent columns, thereby improving the purification efficiency. The water flow trough 217 is arranged at the bottom layer of the purification area 210, and the water flow trough 217 is respectively connected to the first column 215 and the second column 216. The water flow trough 217 guides rainwater into the second column 216 for further filtering. A plurality of water permeable baffles 230 are respectively arranged in the first column 215 and the second column 216, and are used to separate the active filler 211, the large particle filter material 212, the medium particle filter material 213 and the small particle filter material 214 from top to bottom, so as to ensure the independence and effectiveness of each layer of filter material. This design not only improves the purification efficiency of rainwater, but also ensures the effective use of each layer of filter material through the layered purification method, avoiding the blockage of the fine filter layer by large particles. At the same time, the design of double filtration paths further enhances the purification effect and ensures that rainwater is fully purified before entering the drainage system or natural water bodies.

[0056] In one embodiment, the plurality of water-permeable partitions 230 are each provided with filter holes (not marked in the figure) to facilitate the water in the purification area 210 to flow along the first row 215 , the water flow trough 217 and the second row 216 .

[0057] Specifically, a plurality of water-permeable baffles 230 are respectively arranged in the first column 215 and the second column 216, and are used to separate the active filler 211, the large particle filter material 212, the medium particle filter material 213 and the small particle filter material 214 from top to bottom. Each water-permeable baffle 230 is provided with a filter hole, so that the water in the purification area 210 can flow smoothly along the first column 215, the water flow trough 217 and the second column 216. The filter hole design on the water-permeable baffle 230 ensures that the water flow in the purification area 210 can smoothly pass through each layer of filter material and the water-permeable baffle 230, avoiding water flow blockage and improving purification efficiency.

[0058] In one embodiment, the purification chamber 200 also includes an overflow outlet channel (not marked in the figure), which is respectively connected to the intercepting chamber 100 and the purification area 210; one end of the water retaining baffle 220 extends into the purification area 210 and the other end is arranged in the overflow outlet channel and abuts against the top wall of the overflow outlet channel to divide the overflow outlet channel into a first overflow outlet channel 241 and a second overflow outlet channel 242; rainwater in the intercepting chamber 100 flows into the first overflow outlet channel 241 and the purification area 210 in turn to purify rainwater with high pollution concentration and flow to the second overflow outlet channel 242 and the outlet channel in turn.

[0059] Specifically, the first overflow outlet channel 241 is used to guide the rainwater in the intercepting chamber 100 into the purification area 210, and the second overflow outlet channel 242 is used to guide the purified rainwater into the outlet channel. The first overflow outlet channel 241 allows the rainwater in the intercepting chamber 100 to smoothly enter the purification area 210, and after multi-layer filtration, it flows into the second overflow outlet channel 242 and the outlet channel, ensuring the optimization of the water flow path and the improvement of the purification efficiency. This design ensures that the rainwater can flow smoothly between the intercepting chamber 100, the first overflow outlet channel 241, the purification area 210 and the second overflow outlet channel 242, thereby improving the purification effect. At the same time, through the design of multi-level filtration and overflow channels, the rainwater is fully purified before entering the drainage system or natural water body, further reducing the pollutant load.

[0060] In one embodiment, the water outlet channel includes a first water outlet channel 310 and a second water outlet channel 320, and the first water outlet channel 310 is located below the second water outlet channel 320; when the water level of the second overflow water outlet channel 242 rises, its rainwater flows to the first water outlet channel 310; when the water level of the second overflow water outlet channel 242 submerges the first water outlet channel 310, its rainwater with low pollution concentration flows to the second water outlet channel 320.

[0061] Specifically, the first water outlet channel 310 is located below the second water outlet channel 320, and is used to discharge rainwater with high pollution concentration after primary purification. The second water outlet channel 320 is located above the first water outlet channel 310, and is used to discharge rainwater with low pollution concentration after multi-level purification. At the beginning of a rainstorm, the water level in the interception chamber 100 rises rapidly, and the initial rainwater with high pollution concentration is filtered and treated in the purification area 210 in turn. The rainwater is subjected to sedimentation, filtration, adsorption and biological purification measures in the purification area 210 to remove biodegradable pollutants, suspended matter and other pollutants, and then discharged into the rainwater system through the first water outlet channel 310. As the rainfall continues, the water level of the second overflow water outlet channel 242 continues to rise and submerges the first water outlet channel 310. At this time, it belongs to the middle and late rainwater, and the middle and late rainwater will enter the rainwater system through the second water outlet channel 320. By providing the first water outlet channel 310 and the second water outlet channel 320 , it is ensured that the initial rainwater and the middle and late rainwater are discharged separately, the treatment and discharge path of the rainwater is optimized, and the purification efficiency of the system is improved.

[0062] In addition, at the beginning of a rainstorm, rainwater with a high initial pollution concentration is discharged through the first water outlet channel 310. After sedimentation, filtration, adsorption and biological purification, the pollutant concentration is significantly reduced. As the rainfall continues, rainwater with a lower pollution concentration in the middle and late stages is discharged through the second water outlet channel 320. The first water outlet channel 310 and the second water outlet channel 320 can be connected to different drainage systems to ensure that rainwater with different pollution levels is treated accordingly, reducing pollution to natural water bodies. Through the effective application of this system, the pollutant load in the initial rainwater can be greatly reduced, reducing its pollution to natural water bodies, helping to control urban black and odorous water bodies, improving the quality of urban water environment, and promoting the sustainable development of cities.

[0063] In one embodiment, the water outlet channel also includes a third water outlet channel 330, one end of the third water outlet channel 330 is connected to the intercepting chamber 100, and the other end is connected to the first water outlet channel 310 and the second water outlet channel 320, and the third water outlet channel 330 is located below the overflow water outlet channel. The rainwater well 10 for reducing initial rain pollutants also includes a water retaining mechanism 400, which is arranged in the intercepting chamber 100. The water retaining mechanism 400 includes a float 410 and a transmission structure (not marked in the figure), and the float 410 is arranged in the intercepting chamber 100; the transmission structure includes a transmission rod 421, a shielding member 422 and a fixing rod 423, one end of the transmission rod 421 is rotatably connected to the shielding member 422, and the other end is fixedly connected to the float 410, and the fixing rod One end of 423 is arranged at the well wall in the intercepting chamber 100, and the other end is rotatably connected to the transmission rod 421, and the shielding member 422 is in contact with the well wall in the intercepting chamber 100; the connection point between the fixing rod 423 and the transmission rod 421 is defined as the connection point, when the water level in the intercepting chamber 100 rises and contacts the float 410, the float 410 floats up, and the transmission rod 421 rotates along the connection point to drive the shielding member 422 to move downward and block the third water outlet channel 330; when the water level in the intercepting chamber 100 drops, the float 410 falls, and the transmission rod 421 rotates in the opposite direction along the connection point to drive the shielding member 422 to move upward, and the shielding member 422 moves away from the third water outlet channel 330 to connect the intercepting chamber 100 with the third water outlet channel 330.

[0064] Specifically, the first water outlet channel 310 is located below the second water outlet channel 320, and is used to discharge rainwater with high pollution concentration that has undergone primary purification; the second water outlet channel 320 is located above the first water outlet channel 310, and is used to discharge rainwater with low pollution concentration that has undergone multi-level purification; one end of the third water outlet channel 330 is connected to the interception chamber 100, and the other end is connected to the first water outlet channel 310 and the second water outlet channel 320, and the third water outlet channel 330 is located below the overflow water outlet channel.

[0065] When the water level in the intercepting chamber 100 rises and contacts the floating ball 410, the floating ball 410 floats up, and the transmission rod 421 rotates along the connection point, driving the shielding member 422 to move downward and shield the third water outlet channel 330. When the water level drops, the floating ball 410 falls, and the transmission rod 421 rotates in the opposite direction, driving the shielding member 422 to move upward, and the shielding member 422 moves away from the third water outlet channel 330, so that the intercepting chamber 100 is connected with the third water outlet channel 330. Through the arrangement of the third water outlet channel 330 and the water retaining mechanism 400, it is ensured that the later rainwater can be discharged from the third water outlet channel 330, thereby improving the purification efficiency of the system.

[0066] It should be understood that the initial rain collected by the interception chamber 100 will continue to decrease as the rainwater continues to flow in and out of the overflow water channel. When the water level of the interception chamber 100 drops, the rainwater collected by the interception chamber 100 is already low-pollution rainwater.

[0067] In one embodiment, the floating ball 410 , the transmission rod 421 and the shielding member 422 are all made of light materials.

[0068] Specifically, the light-material float 410, transmission rod 421 and shielding member 422 enable the water retaining mechanism 400 to quickly respond to water level changes, improve the overall sensitivity and response speed of the rainwater well, and ensure timely discharge and treatment of rainwater. The main function is that when the water level in the interception chamber 100 rises and contacts the float 410, the float 410 can float, thereby driving the transmission rod 421 to rotate along the connection point, driving the shielding member 422 to move downward and shield the third water outlet channel 330.

[0069] In one embodiment, the rainwater well 10 for reducing initial rain pollutants further includes a combined water inlet channel 500 , which is connected to the interception chamber 100 , and external rainwater is gathered through the combined water inlet channel 500 and flows into the interception chamber 100 .

[0070] Specifically, the combined water inlet channel 500 is connected to the interception chamber 100, so that more external rainwater is collected through the combined water inlet channel 500 and effectively collected and gathered into the interception chamber 100, thereby improving the overall processing capacity of the rainwater well.

[0071] In one embodiment, a first wellhead (not marked in the figure) and a first well cover 110 are provided above the interception chamber 100, the first wellhead is located above the overflow water outlet channel, and the first well cover 110 can be covered on the first wellhead; a second wellhead (not marked in the figure) and a second well cover 250 are provided above the purification chamber 200, the second wellhead is located above the overflow water outlet channel, and the second well cover 250 can be covered on the second wellhead

[0072] Specifically, the first wellhead is located above the overflow water outlet channel, which is convenient for maintenance and inspection of the interception chamber 100. The first wellhead cover 110 can be covered on the first wellhead to ensure the sealing and safety of the interception chamber 100, and is convenient for opening for maintenance. The second wellhead is located above the overflow water outlet channel, which is convenient for maintenance and inspection of the purification chamber 200. The second wellhead cover 250 can be covered on the second wellhead to ensure the sealing and safety of the purification chamber 200, and is convenient for opening for maintenance.

[0073] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rainwater well for reducing pollutants in initial rain, characterized in that: include: interception chambers to collect rainwater; A purification chamber is connected to the interception chamber, and the purification chamber includes a purification area, and active fillers and filter components are separately arranged in the purification area; A water outlet channel, connected to the purification chamber; When the water level in the interception chamber rises, rainwater with high pollution concentration in the interception chamber flows into the purification chamber, is purified by the active fillers and filter group materials in the purification area, and flows to the water outlet channel.

2. The rainwater well for reducing first rain pollutants according to claim 1, characterized in that: The filter material group includes large particle filter material, medium particle filter material, and small particle filter material which are arranged separately; Rainwater with high pollution concentration flows into active filler, large particle filter material, medium particle filter material, small particle filter material, large particle filter material, medium particle filter material, small particle filter material and active filler in sequence to purify rainwater with high pollution concentration and flow it to the outlet channel.

3. The rainwater well for reducing initial rain pollutants according to claim 2, characterized in that: The clean room also includes: A water retaining baffle is arranged in the purification area to separate the purification area into a first column and a second column. A water flow trough is arranged at the bottom of the purification area, and the water flow trough is respectively connected with the first column and the second column; A plurality of water-permeable baffles are respectively arranged in the first column and the second column, active fillers, large particle filter materials, medium particle filter materials, and small particle filter materials are respectively arranged in the first column and the second column, and the active fillers, large particle filter materials, medium particle filter materials, small particle filter materials, and water flow channels are all separated from top to bottom by the water-permeable baffles; Rainwater with high pollution concentration flows into active filler, large particle filter material, medium particle filter material, small particle filter material, the water flow trough, large particle filter material, medium particle filter material, small particle filter material, and active filler in sequence to purify the rainwater with high pollution concentration and flow it to the water outlet channel.

4. The rainwater well for reducing pollutants from initial rain as claimed in claim 3, characterized in that: The plurality of water-permeable partitions are all provided with filtering holes, so that the water in the purification area can flow along the first column, the water flow trough and the second column.

5. The rainwater well for reducing first rain pollutants as claimed in claim 3, characterized in that: The purification chamber also includes an overflow water outlet channel, which is respectively connected to the interception chamber and the purification area; One end of the water retaining baffle extends into the purification area, and the other end is arranged in the overflow water outlet channel and abuts against the top wall of the overflow water outlet channel to divide the overflow water outlet channel into a first overflow water outlet channel and a second overflow water outlet channel; The rainwater in the interception chamber flows into the first overflow water outlet channel and the purification area in sequence, so that the rainwater with high pollution concentration is purified and flows to the second overflow water outlet channel and the water outlet channel in sequence.

6. The rainwater well for reducing first rain pollutants according to claim 5, characterized in that: The water outlet channel comprises a first water outlet channel and a second water outlet channel, wherein the first water outlet channel is located below the second water outlet channel; When the water level of the second overflow outlet channel rises, the rainwater flows to the first outlet channel; When the water level of the second overflow outlet channel floods the first outlet channel, rainwater with a low pollution concentration flows to the second outlet channel.

7. The rainwater well for reducing first rain pollutants according to claim 6, characterized in that: The water outlet channel also includes a third water outlet channel, one end of the third water outlet channel is connected to the interception chamber, and the other end is connected to the first water outlet channel and the second water outlet channel, and the third water outlet channel is located below the overflow water outlet channel. The rainwater well for reducing initial rain pollutants also includes a water retaining mechanism, which is arranged in the interception chamber, and the water retaining mechanism includes: A floating ball is arranged in the interception chamber; The transmission structure comprises a transmission rod, a shielding member and a fixing rod, one end of the transmission rod is rotatably connected to the shielding member, and the other end is fixedly connected to the float, one end of the fixing rod is arranged at the well wall in the intercepting chamber, and the other end is rotatably connected to the transmission rod, and the shielding member is attached to the well wall in the intercepting chamber; The connection point between the fixing rod and the transmission rod is defined as a connection point. When the water level in the intercepting chamber rises and contacts the floating ball, the floating ball floats up, and the transmission rod rotates along the connection point to drive the shielding member to move downward and shield the third water outlet channel. When the water level in the intercepting chamber drops, the float falls, and the transmission rod rotates in the opposite direction along the connection point to drive the shielding member to move upward, and the shielding member moves away from the third water outlet channel to connect the intercepting chamber with the third water outlet channel.

8. The rainwater well for reducing first rain pollutants as claimed in claim 7, characterized in that: The floating ball, the transmission rod and the shielding member are all made of light materials.

9. The rainwater well for reducing first rain pollutants according to claim 1, characterized in that: The rainwater well for reducing initial rain pollutants also includes a combined water inlet channel, which is connected to the interception chamber. External rainwater is gathered through the combined water inlet channel and flows into the interception chamber.

10. The rainwater well for reducing first rain pollutants according to claim 5, characterized in that: A first wellhead and a first well cover are provided above the interception chamber, wherein the first wellhead is located above the overflow water outlet channel, and the first well cover can be provided on the first wellhead; A second wellhead and a second well cover are provided above the purification chamber. The second wellhead is located above the overflow water channel, and the second well cover can be provided on the second wellhead.

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