A rainwater recycling pond structure that is easy to drain silt

Abstract

This utility model relates to the field of rainwater harvesting, providing a rainwater harvesting tank structure that facilitates sludge removal. The structure includes: a casing, a permeable support assembly disposed within the casing, and a drainage base. The casing contains an installation cavity. The casing has an inlet, a drainage outlet, and an outlet connecting the installation cavity to the outside. The permeable support assembly has a longitudinal channel communicating with the inlet, through which rainwater flows downwards. The drainage base is located below the permeable support assembly. The drainage base has transverse channels communicating with the drainage outlet and the longitudinal channel, allowing rainwater to collect at the drainage outlet. The inlet is located on the upper part of one side of the casing, and the outlet is located below the inlet and above the drainage base, with the drainage outlet lower than the outlet. Advantages: The transverse channels on the base collect wastewater, improving cleaning efficiency; the permeable support assembly prevents rainwater from impacting sediment on the base, further optimizing the cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of rainwater harvesting, and more specifically, to a rainwater harvesting tank structure that is easy to drain silt. Background Technology

[0002] Rainwater harvesting has numerous practical benefits. First, it alleviates water shortages. As a distributed water source, rainwater not only reduces pressure on centralized water supply but also becomes a key source of ecological water replenishment in arid regions. Second, it reduces urban drainage pressure. Modular water storage facilities, through precise retention, reduce peak rainfall levels, significantly lowering the cost of flood control and minimizing damage. Simultaneously, the surface space released by underground storage systems can be used for greening or public facilities such as parking lots, improving land utilization efficiency. Third, it offers significant economic benefits; the unit cost of rainwater treatment is lower than that of tap water. For example, combining rainwater harvesting systems with building-integrated photovoltaics can save substantial amounts of energy. Fourth, it has outstanding ecological value. The naturally low mineral content of rainwater makes it a high-quality ecological water source. Using stored rainwater for lake ecological replenishment, green space irrigation, and road cleaning can significantly improve the local environment and enhance urban environmental resilience.

[0003] Existing rainwater harvesting module systems typically use PP modules to settle and disinfect rainwater before recycling. However, after the rainwater passes through the module's sedimentation tank, sediment usually forms at the bottom of the module. Because existing rainwater harvesting tanks use submersible pumps in conjunction with sludge removal wells for point collection and sludge removal, the sludge removal effect is unsatisfactory. Furthermore, because the sediment is easily dispersed by flowing rainwater, the discharge of wastewater and sediment is difficult, resulting in poor discharge efficiency and cleaning effect, and also affecting the cleanliness of the harvested rainwater. Utility Model Content

[0004] The present invention aims to overcome at least one defect (deficiency) of the prior art and provide a rainwater recycling tank structure that is easy to drain silt, thereby reducing the difficulty of discharging sludge from the bottom of the module.

[0005] This utility model provides a rainwater recycling tank structure that is easy to drain silt.

[0006] Includes: a casing, and a water-permeable support assembly and a sewage discharge base disposed within the casing;

[0007] The enclosure has an installation cavity;

[0008] The enclosure is provided with an inlet, a drain outlet, and an outlet that connect the mounting cavity to the outside.

[0009] The permeable support assembly is provided with a longitudinal channel that communicates with the water inlet, through which rainwater flows downward.

[0010] The sewage discharge base is located below the permeable support assembly;

[0011] The sewage base is provided with transverse channels that are connected to the sewage outlet and the longitudinal channel respectively, so that rainwater can be collected in the sewage outlet through the transverse channels.

[0012] The water inlet is located on the upper part of one side of the casing, and the water outlet is located below the water inlet and above the sewage discharge base. The sewage discharge outlet is lower than the water outlet.

[0013] In this technical solution, the enclosure is closed, which can be understood as a closed pool. The installation cavity inside the enclosure is mainly used for water storage. The permeable support component increases the internal support force of the enclosure, improving the overall support performance of the recycling module. Both the support component and the sewage discharge base are located inside the installation cavity. After rainwater enters the installation cavity from the inlet, it can be diverted through the longitudinal channel. The downward flow velocity of the diverted rainwater is reduced, thereby reducing the impact of the rainwater flow on the bottom and preventing sediments already deposited at the bottom from being suspended in the upper rainwater due to impact. This improves the cleanliness of the upper rainwater and increases the efficiency of sediment removal.

[0014] Deposits in rainwater settle on the drainage base. The horizontal channels on the base guide rainwater flow, facilitating the collection of deposits. Once collected, the deposits are discharged from the drainage outlet, thus reducing the difficulty of cleaning the deposits and improving the cleaning efficiency.

[0015] The outlet is used for discharging clean rainwater. The inlet is located at the top of the enclosure. As rainwater flows from top to bottom, it is filtered and diverted by the permeable support components. The upper layer of rainwater is relatively clean, while sediment remains at the bottom. The outlet is located below the inlet, ensuring that the rainwater is filtered and diverted before being discharged and recycled. The sewage outlet is lower than the outlet, ensuring that the rainwater discharged from the outlet is the upper layer of clean water, thus guaranteeing the quality of the recycled rainwater.

[0016] Furthermore, the transverse channel is located on the top surface of the sewage base; the transverse channel includes: multiple branch channels and a main channel; one end of the branch channel is connected to the main channel, and the other end extends to an inner side of the enclosure.

[0017] In this technical solution, the transverse channel is located on the top surface of the sewage base, facilitating rainwater collection. Multiple branch channels act as diversion channels, directing rainwater from the branch channels to the main channel for convergence and then discharge, improving sewage discharge efficiency and effectiveness. The timely discharge of sewage and waste also enhances the cleanliness of the recycled rainwater. Furthermore, the other end of each branch channel extends to the inner side of the casing, preventing sewage accumulation at the side corners, thus ensuring more comprehensive sewage discharge.

[0018] Furthermore, the main channel is located in the middle of the surface of the sewage base, and the branch channels are respectively located on both sides of the main channel; the main channel and the branch channels are straight channels; the included angle between the main channel and the branch channels is 30° to 90°.

[0019] In this technical solution, the branch channels are located on both sides of the main channel, with the main channel situated in the middle. This arrangement allows sewage from both sides of the main channel to be quickly diverted to the main channel. The straight arrangement of the branch channels also accelerates sewage discharge and avoids the accumulation of sewage and debris at corners, thus preventing the impact on sewage flow velocity that would occur with curved designs. If the angle between the main channel and the branch channels is too small, the corner at their connection will be too large, affecting the speed at which sewage from the branch channels enters the main channel. Therefore, a suitable angle further ensures the sewage discharge speed.

[0020] Furthermore, the water inlet and the sewage outlet are located on one side of the casing, the water outlet is located on the opposite side, the main channel is connected to both sides, and the branch channels are symmetrically arranged on both sides of the main channel and perpendicular to the main channel.

[0021] In this technical solution, the water outlet and the sewage outlet are located on opposite sides. Rainwater enters the casing through the inlet and flows out of the outlet in opposite directions to the sewage outlet. This ensures that the recycled clean rainwater is kept away from the sewage outlet, preventing sewage from affecting the clean water and optimizing the cleaning effect of the recycled clean water. The symmetrical arrangement of the branch channels further makes the sewage flow rate on both sides of the main channel more uniform, preventing sewage accumulation on one side. Furthermore, the vertical arrangement of the main channel and branches further facilitates smoother flow of sewage from the branch channels into the main channel.

[0022] Furthermore, the top of the main channel is open, and the horizontal cross-section gradually decreases from top to bottom; and / or, the top of the branch channel is open, and the horizontal cross-section gradually decreases from top to bottom.

[0023] In this technical solution, the longitudinal cross-section of the main channel and branch channels is wider at the top and narrower at the bottom, allowing sewage falling into the channels to collect naturally, facilitating channel emptying and preventing sewage and debris from accumulating inside. Specifically, the inner side of the channel is an inclined or stepped surface. Preferably, the inner wall of the channel is an arc-shaped surface, i.e., its side is an inclined arc surface, thus preventing sediment from accumulating at the corners and optimizing the sewage discharge effect.

[0024] Furthermore, a flushing assembly is provided within the main channel, the flushing assembly comprising: a flushing device movably disposed within the main channel; and a driving device for driving the flushing device to move back and forth within the main channel.

[0025] In this technical solution, since the bottom of the casing is the part that comes into contact with sewage and sediment, the flushing device is used to clean the base and the area around it to keep it clean, prevent sediment from accumulating on the base and affecting the cleanliness of rainwater recycling, and also avoid clogging to ensure sewage discharge efficiency. The flushing device is driven to move back and forth in the main channel to ensure the comprehensiveness of the cleaning work.

[0026] The connection between the flushing device, the drive device, and the main channel can be made so that the drive device can move the flushing device back and forth, including but not limited to the cooperation of slide rails, sliders, and motors.

[0027] Furthermore, the main channel includes: a guide rail, and a drainage channel at least on one side of the guide rail;

[0028] The rinsing device is movably mounted on the guide rail.

[0029] In this technical solution, the guide rail restricts the movement trajectory of the rinsing device, improving its controllability and ensuring the stability of the cleaning effect. The drainage channel is connected to the sewage outlet and can be located on one or both sides of the guide rail, allowing sewage and waste to flow from the drainage channel to the sewage outlet.

[0030] Specifically, the connection of the rinsing device only needs to enable it to move back and forth on the guide rail, for example, by connecting it to the base through a telescopic pipe, or by connecting it to a slider to cooperate with the drive motor to move back and forth on the guide rail.

[0031] Furthermore, the rinsing device includes: a movable rinsing head, and a telescopic tube connected to the rinsing head;

[0032] The flushing head is provided with multiple spray holes, and at least some of the spray holes are aligned with the angle between the main channel and the branch channel.

[0033] In this technical solution, the angle between the nozzle and the main channel can be understood as the angle between the liquid column ejected from the nozzle and the main channel. The matching setting of this angle allows the liquid column ejected from the track to precisely match the extension direction of the branch channels, thereby flushing the branch channels and ensuring the cleaning effect of contaminants on them. Specifically, at least some of the nozzles on the flushing head are used to clean the main channel.

[0034] Furthermore, a soil cover layer is provided above the permeable support assembly; the inlet is connected to the upper part of the permeable support assembly, and the outlet is connected to the lower part of the permeable support assembly; the outlet divides the permeable support assembly into a clean water storage area between the inlet and the outlet, and a sedimentation wastewater area between the outlet and the sewage outlet.

[0035] In this technical solution, the filtered clean rainwater in the water storage area is recycled after flowing out of the outlet. The rainwater in the wastewater sedimentation area is wastewater, which is discharged from the sewage outlet. The arrangement of the inlet, outlet, and sewage outlet forms a multi-functional area, ensuring the smooth operation of rainwater recycling and wastewater discharge, and reducing the probability of wastewater affecting the clean water.

[0036] Furthermore, the sedimentation wastewater zone is provided with a plurality of flushing pipes arranged in a ring, the flushing pipes being connected to the permeable support assembly and having nozzles facing the permeable support assembly.

[0037] In this technical solution, the flushing pipe is used to clean the permeable support components of the sedimentation wastewater area, so as to prevent pollutants from accumulating on the permeable support components and affecting the sewage discharge efficiency and the cleanliness of the recovered rainwater. In this way, the flushing components are used to thoroughly clean the structure below the recovery module.

[0038] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0039] (1) The present invention uses the horizontal channel on the base to guide rainwater, which facilitates the collection of sediments. After the sediments are collected, they are discharged from the sewage outlet, thereby reducing the difficulty of cleaning the sediments and improving the efficiency of cleaning the sediments. This design can meet the requirements of water purification and dredging with a large amount of mud and sand, and is suitable for the recycling treatment of construction water during the engineering construction process.

[0040] (2) By setting up a permeable support component, this utility model can buffer and filter rainwater, reduce the impact of rainwater flow on the bottom, and prevent the sediments that have been deposited at the bottom from being suspended in the upper rainwater due to impact. This improves the cleanliness of the upper rainwater and increases the efficiency of cleaning sediments.

[0041] (3) The present invention facilitates the rinsing of dirt at the bottom of the recycling module by setting up a rinsing device and a rinsing pipe, thereby ensuring the cleanliness of the recycled rainwater. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of the recycling module of this utility model.

[0043] Figure 2 This is a three-dimensional structural view of the sewage discharge base of this utility model.

[0044] Figure 3 This is a top view of the sewage discharge base of this utility model.

[0045] Figure 4 This is a top view of the sewage discharge base of this utility model.

[0046] Figure 5 This is a schematic diagram of the flushing head of this utility model.

[0047] Figure 6 This is a schematic diagram of the guide rail structure of this utility model.

[0048] Figure 7 This is a cross-sectional view of the guide rail and flushing head of this utility model.

[0049] Figure 8 This is a schematic diagram of the structure of the rotary flushing head of this utility model.

[0050] Reference numerals: 100, inlet, 110, outlet, 120, 130, clean water storage area, 140, sedimentation area, 150, permeable support assembly, 200, longitudinal channel, 210, sewage base, 300, main channel, 310, branch channel, 320, flushing head, 400, nozzle, 410, rotating part, 420, connecting part, 430, opening, 440, soil cover layer, 500, flushing pipe, 600, guide rail, 700, support plate, 710, opening, 720. Detailed Implementation

[0051] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0052] Example 1

[0053] refer to Figures 1 to 5 This embodiment provides a rainwater recycling tank structure that is easy to drain, including: a shell 100, a permeable support assembly 200 and a sewage discharge base 300 disposed within the shell 100; the shell 100 has an installation cavity; the shell 100 has an inlet 110, a sewage discharge port 120 and an outlet 130 communicating with the installation cavity and the outside; the permeable support assembly 200 has a longitudinal channel 210 communicating with the inlet 110, through which rainwater flows downward; the sewage discharge base 300 is disposed below the permeable support assembly 200.

[0054] Optionally, the sewage discharge base 300 is an assembled component, suitable for geological conditions with good bearing capacity at the bottom of the recycling pool, and the installation speed is relatively fast; or, the sewage discharge base 300 can be directly shaped by shaping each channel on the base during concrete pouring, which can be achieved by die casting with a pipe of the corresponding diameter, which is low in cost.

[0055] The sewage base 300 is provided with transverse channels that are respectively connected to the sewage outlet 120 and the longitudinal channel 210, so that rainwater can be collected in the sewage outlet 120 through the transverse channels; the water inlet 110 is located on the upper part of one side of the enclosure shell 100, the water outlet 130 is located below the water inlet 110 and above the sewage base 300, and the sewage outlet 120 is lower than the water outlet 130.

[0056] Preferably, the transverse channel is located on the top surface of the sewage discharge base 300; the transverse channel includes: multiple branch channels 320 and a main channel 310; one end of each branch channel 320 is connected to the main channel 310, and the other end extends to an inner side of the enclosure 100. The main channel 310 is located in the middle of the surface of the sewage discharge base 300, and the branch channels 320 are respectively located on both sides of the main channel 310; the main channel 310 and the branch channels 320 are straight channels; the included angle between the main channel 310 and the branch channels 320 is 30° to 90°. Specifically, as shown... Figure 5 and Figure 6 As shown, the angle between the main channel 310 and the branch channel 320 can be 40°, 60°, or 80°, forming a fishbone-shaped channel for collection. Combined with the flushing pipes and flushing components for sludge removal, this greatly enhances the sludge removal capacity and effect. Especially during the construction phase of engineering projects, when surface rainwater or foundation pit drainage contains a large amount of mud, the rainwater recycling tank in this embodiment is more conducive to the recycling and utilization of such water sources.

[0057] Preferably, the inlet 110 and the outlet 120 are located on one side of the enclosure 100, the outlet 130 is located on the opposite side, the main channel 310 is connected to the two sides, and the branch channels 320 are symmetrically arranged on both sides of the main channel 310 and perpendicular to the main channel 310.

[0058] Preferably, the top of the main channel 310 is open, and the horizontal cross-section gradually decreases from top to bottom; and / or, the top of the branch channel 320 is open, and the horizontal cross-section gradually decreases from top to bottom.

[0059] Preferably, the main channel 310 is provided with a flushing assembly, which includes: a flushing device movably disposed within the main channel 310; and a driving device for driving the flushing device to move back and forth on the main channel 310.

[0060] like Figure 5As shown, preferably, the flushing device includes: a movable flushing head 400 and a telescopic pipe connected to the flushing head 400; the flushing head enters the main channel 310 through the drain outlet, the front end of the flushing head 400 is provided with at least one spray hole 410, and its rear end is provided with a water inlet, the water inlet is connected to the telescopic pipe, and a plurality of spray holes 410 are arranged around the water inlet, the end of the telescopic pipe away from the flushing head 400 is connected to a water source, preferably a high-pressure water source, the water source enters the flushing head 400 through the telescopic pipe and is sprayed out from the spray hole 410, when the water pressure is high, the liquid column of the spray hole 410 at the front end of the flushing head 400 applies a reverse force to the flushing head 200, thus achieving full sludge removal by adjusting the water pressure to make the flushing head 400 move back and forth in the main channel 310.

[0061] Preferably, a soil cover layer 500 is provided above the permeable support component 200;

[0062] The inlet 110 is connected to the upper part of the permeable support assembly 200, and the outlet 130 is connected to the lower part of the permeable support assembly 200.

[0063] The outlet 130 divides the permeable support assembly 200 into a clean water storage area 140 located between the inlet 110 and the outlet 130, and a sedimentation wastewater area 150 located between the outlet 130 and the sewage outlet 120.

[0064] Preferably, the sedimentation wastewater zone is provided with a plurality of flushing pipes 600 arranged in a ring. The flushing pipes 600 are connected to the permeable support assembly and are provided with nozzles facing the permeable support assembly. The nozzles are preferably rotating nozzles, which rotate on their own using the reaction force of the water spray, and can flush the sediment on the bottom of the pool and the support module into the channel on the sewage discharge base for collection and discharge. For example, a rotating nozzle is provided every 2 to 3 meters on the flushing pipes 600.

[0065] Example 2

[0066] refer to Figure 6 and Figure 7 This embodiment provides a rainwater recycling tank structure that is easy to drain silt, and the main difference from Embodiment 1 is:

[0067] The main channel 310 includes: a guide rail 700, and a drainage channel at least on one side of the guide rail 700; the flushing device is movably mounted on the guide rail 700.

[0068] Preferably, the rinsing device includes: a movable rinsing head 400, and a telescopic tube connected to the rinsing head 400; the rinsing head 400 is provided with a plurality of spray holes 410, and at least some of the spray holes 410 are matched with the angle between the main channel 310 and the branch channel 320 and the main channel 310.

[0069] Specifically, the guide rail 700 includes a connected top and side sections. The top is designed as an inverted "V" shape, sloping downwards to facilitate the downward flow of wastewater. The top also has multiple openings 720, which are positioned to match the spray nozzles 410. The liquid column from the flushing head 400 sprays flushing liquid from the openings 720 for cleaning. Furthermore, a support plate 710 is provided within the guide rail 700, connecting to the side sections of the guide rail 700. The flushing head 400 is mounted on the support plate 710. The flushing head 400 can be driven to move back and forth on the guide rail 700 by a drive device, including but not limited to an electric screw drive. The drive device can also be electrically connected to a controller for intelligent control.

[0070] Example 3

[0071] refer to Figure 8 This embodiment provides a rainwater recycling tank structure that is easy to drain silt. The main difference from Embodiment 1 is that the flushing head 400 is a rotary nozzle. The flushing head includes a rotating part 420 and a connecting part 430 connected to form a T-shape. The front end of the rotating part 420 is provided with at least two spray holes 410. The two ends of the rotating part 420 are provided with openings 440, and the openings 440 at both ends are arranged opposite to each other. The openings 440 are preferably elongated. The end of the connecting part 430 away from the rotating part 420 is connected to a telescopic pipe, and the end of the telescopic pipe away from the connecting part 430 is connected to a water source. The water source is preferably a high-pressure water source. After the high-pressure water source enters the flushing head 400, the water sprayed from the spray holes 410 is used for cleaning. The water sprayed from the openings 440 causes the flushing head 400 to rotate, which also plays a cleaning role. The rotary flushing head 400 makes the cleaning area larger and more comprehensive.

[0072] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A silt-easily-discharged rainwater recovery tank structure, Its features are, Includes: a casing, and a water-permeable support assembly and a sewage discharge base disposed within the casing; The enclosure has an installation cavity; The enclosure is provided with an inlet, a drain outlet, and an outlet that connect the mounting cavity to the outside. The permeable support assembly is provided with a longitudinal channel that communicates with the water inlet, through which rainwater flows downward. The sewage discharge base is located below the permeable support assembly; The sewage base is provided with transverse channels that are connected to the sewage outlet and the longitudinal channel respectively, so that rainwater can be collected in the sewage outlet through the transverse channels. The water inlet is located on the upper part of one side of the casing, and the water outlet is located below the water inlet and above the sewage discharge base. The sewage discharge outlet is lower than the water outlet.

2. The rainwater recycling tank structure for easy silt removal according to claim 1, characterized in that, The transverse channel is located on the top surface of the sewage discharge base; The lateral passageway includes: multiple branch passageways and a main passageway; One end of the branch channel is connected to the main channel, and the other end extends to an inner side of the packaging shell.

3. The rainwater recycling tank structure for easy silt removal according to claim 2, characterized in that, The main channel is located in the middle of the surface of the sewage base, and the branch channels are respectively located on both sides of the main channel; The main channel and the branch channel are straight channels; The angle between the main channel and the branch channel is 30° to 90°.

4. The rainwater recycling tank structure for easy silt removal according to claim 2, characterized in that, The water inlet and the sewage outlet are located on one side of the casing, and the water outlet is located on the opposite side. The main channel is connected to both sides, and the branch channels are symmetrically arranged on both sides of the main channel and perpendicular to the main channel.

5. The rainwater recycling tank structure for easy silt removal according to claim 2, characterized in that, The top of the main passage is open, and the horizontal cross-section gradually decreases from top to bottom; And / or, the top of the branch channel is open, and the horizontal cross-section gradually decreases from top to bottom.

6. The rainwater recycling tank structure for easy silt removal according to claim 2, characterized in that, The main channel is equipped with a flushing assembly, which includes: A flushing device is movably installed within the main channel; A drive unit is used to drive the flushing device to move back and forth in the main channel.

7. The rainwater recycling tank structure for easy silt removal according to claim 6, characterized in that, The main channel includes: a guide rail, and a drainage channel at least on one side of the guide rail; The rinsing device is movably mounted on the guide rail.

8. The rainwater recycling tank structure for easy silt removal according to claim 6, characterized in that, The rinsing device includes: a movable rinsing head, and a telescopic tube connected to the rinsing head; The flushing head is provided with multiple spray holes, and at least some of the spray holes are aligned with the angle between the main channel and the branch channel.

9. A rainwater recycling tank structure that facilitates silt removal according to any one of claims 1-8, characterized in that, A soil cover layer is provided above the permeable support component; The inlet is connected to the upper part of the permeable support assembly, and the outlet is connected to the lower part of the permeable support assembly. The outlet divides the water inlet into a clean water storage area between the inlet and the outlet, and a sedimentation wastewater area between the outlet and the sewage outlet within the permeable support assembly.

10. The rainwater recycling tank structure for easy silt removal according to claim 9, characterized in that, The sedimentation wastewater zone is provided with several flushing pipes arranged in a ring. The flushing pipes are connected to the permeable support assembly and are provided with nozzles facing the permeable support assembly.

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