A device for collecting, storing, and purifying stormwater resources in ditches

Abstract

This invention discloses a stormwater collection, storage, and purification device for drainage ditches, belonging to the field of stormwater purification technology. It integrates water diversion, decontamination, purification, disinfection, sterilization, filtration, and water storage to treat stormwater resources. A water diversion channel introduces stormwater resources from the ditch into the device for treatment and utilization. The device features a removable and replaceable screen and porous filter bricks to prevent clogging of the water diversion channel, ensuring optimal interception and purification effects. An automatic dispensing box in the water diversion channel uses a rotating wheel to calculate the amount of stormwater resources introduced into the storage tank, thus automatically dispensing disinfectant. The stormwater introduced into the storage tank is deeply purified and filtered using a filter layer before being stored and utilized. This device has a simple and easy-to-implement structure, not only solving the problem of existing urban drainage ditch congestion but also reducing water waste. It has the advantages of simple structure, excellent and efficient water treatment effect, and reduced water waste.

Description

Technical Field

[0001] This invention belongs to the field of stormwater purification technology, and more specifically relates to a device for collecting, storing and purifying stormwater resources in ditches. Background Technology

[0002] The underlying surfaces of urban roads and green spaces are largely filled with inorganic materials, causing a significant increase in surface rainwater runoff that directly puts pressure on municipal drainage pipes, leading to frequent urban flooding and waterlogging disasters. An important solution to this problem is the collection and reuse of urban rainwater, transforming simple discharge into collection and reuse. This can alleviate the pressure on urban drainage systems and ease water scarcity. However, existing technologies, such as the utility model patent with patent number 202021614645.1, still have problems such as difficulty in cleaning the device, imperfect technical solutions, insufficient rainwater runoff, and low purification efficiency.

[0003] Therefore, how to rationally collect and utilize rainwater from municipal roads has become an important issue in promoting urban development and protecting water resources. To address the series of problems brought about by rapid urbanization, a device is needed that can effectively collect, purify, and store stormwater resources from drainage ditches. Summary of the Invention

[0004] In view of this, the present invention provides a device for collecting, storing and purifying stormwater resources in ditches, which has the advantages of simple structure, excellent and efficient water treatment effect, and reduced water waste.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for collecting, storing, and purifying stormwater resources in a ditch includes an irrigation canal, a debris-blocking net, porous filter bricks, an automatic dispensing box, and a water storage tank. One end of the irrigation canal connects to the ditch, and the other end connects to the water storage tank. The debris-blocking net, porous filter bricks, and automatic dispensing box are sequentially arranged on the irrigation canal. The debris-blocking net is located at the connection between the irrigation canal and the ditch. The automatic dispensing box is located at the top of the irrigation canal and is used to dispense disinfectant. The water storage tank is divided into an outer tank and an inner tank, which are separated by a filter partition wall. The filter partition wall is used for deep filtration of water.

[0007] Furthermore, the water diversion channel is horizontally inclined downwards from one end connected to the ditch to the end connected to the water storage tank.

[0008] Furthermore, the debris-blocking net has a protrusion at one end near the ditch and a mesh fixed at the other end. The protrusion of the debris-blocking net cooperates with the side wall of the water diversion channel and is detachably installed inside the water diversion channel.

[0009] Furthermore, the porous filter brick is disposed behind the debris-blocking net and includes an outer shell and an activated carbon inner core; the outer shell is configured as a hollow structure, and the activated carbon inner core is disposed inside the outer shell, with multiple circular pores neatly distributed inside the activated carbon inner core for adsorbing pollutants.

[0010] Furthermore, the inner wall of the water diversion channel is provided with a slot, and the porous filter brick is fixed in the water diversion channel through the slot.

[0011] Furthermore, the automatic dispensing box includes a storage tank, a controller, a discharge pipe, a fixing stake, a rotating wheel, and a track; the storage tank and the controller are located inside the automatic dispensing box; one end of the discharge pipe is connected to the storage tank, and the other end passes through the controller to dispense the disinfectant from the storage tank into the water diversion channel; the controller is used to control the dispensing volume of the discharge pipe; the bottom of the automatic dispensing box is provided with a fixing stake to fix the rotating wheel inside the water diversion channel; the track is used to connect the rotating wheel shaft and the controller shaft.

[0012] Furthermore, the filter partition wall includes a filter layer and a seepage barrier wall, and multiple filter layers and multiple seepage barrier walls are provided and spaced apart.

[0013] Furthermore, the filter layer is provided with a coarse gravel layer, a medium gravel layer, a fine gravel layer and a biofilm filter layer from the outside to the inside.

[0014] Furthermore, the outer wall of the filter partition is equipped with ultraviolet lamps for water disinfection.

[0015] Furthermore, the outer pool is equipped with a float, a connecting rope, a drain cover, and a drain pipe; the drain pipe is located at the bottom of the outer pool and connects to the outside; one end of the drain cover is rotatably connected to the drain pipe, and the other end is connected to the float via the connecting rope; the float is used to lift the drain cover so that water can be discharged through the drain pipe.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. This invention introduces some rainwater resources from the ditch into the device through a water diversion channel. After being treated by the device to meet drinking water standards, the rainwater resources are utilized, thereby reducing the waste of rainwater resources, increasing the availability of urban water resources, and alleviating ecological problems such as soil erosion and land subsidence caused by rainwater.

[0018] 2. This invention transforms untreated rainwater into usable domestic water for storage through steps such as decontamination, purification, disinfection, sterilization, and filtration. The device is simple in structure, inexpensive, easy to implement, and has excellent results.

[0019] 3. The present invention features a removable and replaceable screen and porous filter bricks, which prevents blockage of the water diversion channel and optimizes the effects of interception and purification.

[0020] 4. The automatic dispensing box in this invention calculates the amount of rainwater resources introduced into the reservoir by rotating a wheel set in the water diversion channel, and then adds the corresponding volume of sodium hypochlorite for disinfection by a controller. The controller adds sodium hypochlorite according to the water flow, which can realize automatic dispensing and avoid resource waste.

[0021] 5. This invention uses sodium hypochlorite disinfection and ultraviolet sterilization to disinfect the stored water introduced into the outer pool of the water storage tank. It can effectively remove iron, magnesium, manganese and ammonia nitrogen, as well as hydrogen sulfide odor in the water. By irradiating with ultraviolet light, the DNA structure of microorganisms is destroyed and changed, thereby causing bacteria to die immediately or be unable to reproduce, so as to achieve the purpose of sterilization. The sterilization effect can reach more than 90%.

[0022] 6. The water storage tank of this invention is divided into an outer tank and an inner tank by a filter partition wall. The outer tank can hold 211.008 m³ of water. 2 The inner pool can hold 141.3m³ of water. 2 It can store a total of 352.308m³ of water. 2 After chlorination, ultraviolet sterilization, and settling, the water in the outer pool passes through the filtration layer under capillary action and reaches the inner pool. At the same time, some of the chlorides in the water stored in the outer pool are effectively removed by the filtration layer, which greatly improves the quality of the water stored in the inner pool.

[0023] 7. This invention utilizes the buoyancy of a float to control the opening and closing of the drain cover in a drainage pipe. When the water level in the reservoir reaches the interface between the water intake channel and the reservoir, the float is completely submerged, experiencing maximum buoyancy (approximately 34.078 N). The float, through a connecting rope, converts this buoyancy into a pulling force on the drain cover (the connecting rope's pulling force of 34.078 N is slightly greater than the drain cover's weight of approximately 31.43 N). The drain cover is then pulled up, connecting the reservoir to the outside. Under the principle of communicating vessels, the excess water flows out, and some sediment that has accumulated at the bottom of the reservoir is also discharged with the water flow. When the water level drops, the buoyancy of the float is insufficient to support the drain cover, causing it to close and stopping the drainage. This design is simple and convenient, greatly saving manpower and resources, and enabling automatic control. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the debris-blocking net structure of the present invention.

[0027] Figure 3 This is a schematic diagram of the porous filter brick structure of the present invention.

[0028] Figure 4 This is a schematic diagram of the card slot structure of the present invention.

[0029] Figure 5 This is a schematic diagram of the automatic dispensing box structure of the present invention.

[0030] Figure 6 This is a schematic diagram of the water storage tank structure of the present invention.

[0031] Figure 7 This is a schematic diagram of the drainage device structure of the present invention.

[0032] In the figure:

[0033] 1-Ditch; 2-Blocking net; 3-Porous filter brick; 4-Water diversion channel; 5-Automatic dispensing box; 6-Float ball; 7-Connecting rope; 8-Drainage cover; 9-Drainage pipe; 10-Water storage tank; 31-Activated carbon inner core; 32-Outer shell; 33-Card slot; 51-Storage tank; 52-Controller; 53-Discharge pipe; 54-Fixing pile; 55-Rotating wheel; 56-Crawler track; 101-Outer pool; 102-Inner pool; 103-Filter layer; 104-Impervious wall; 105-Ultraviolet lamp. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see the appendix Figure 1 This invention provides a device for collecting, storing, and purifying stormwater resources in a drainage ditch, comprising a water diversion channel 4, a debris-blocking net 2, porous filter bricks 3, an automatic dispensing box 5, and a water storage tank 10. One end of the water diversion channel 4 is connected to the stormwater drainage ditch 1, and the other end is connected to the water storage tank 10, connecting the ditch 1 and the water storage tank 10, and introducing water into the water storage tank 10. In one embodiment of this invention, the water diversion channel 4 is made of silicate cement material, 40cm wide and 40cm high; the bottom of the end of the water diversion channel 4 connected to the ditch is 10cm higher than the bottom of the ditch, and is horizontally inclined downwards at a 10° angle; the other end of the water diversion channel 4 is connected to the upper part of the water storage tank.

[0036] The debris-blocking net 2, the porous filter brick 3, and the automatic dispensing box 5 are sequentially arranged on the water diversion channel 4; the debris-blocking net 2 is located at the connection between the water diversion channel 4 and the ditch 1. Please refer to the appendix. Figure 2 In one embodiment of the present invention, the debris-blocking net 2 is configured as a mesh box type, made of polypropylene (PP) material, 20cm long, 40cm wide, and 40cm high; the debris-blocking net 2 has a protrusion at one end near the ditch 1, and a mesh is fixed at the other end, which can intercept solid garbage such as leaves in the water; the protrusion of the debris-blocking net 2 cooperates with the side wall of the water diversion channel 4 and is detachably installed inside the water diversion channel 4.

[0037] Please see the appendix Figure 3-4 The porous filter brick 3 is located behind the debris-blocking net 2 and includes an outer shell 32 and an activated carbon core 31. The outer shell 32 is a hollow structure, and the activated carbon core 31 is located inside the outer shell 32. The activated carbon core 31 has multiple circular pores neatly distributed inside, which are used to adsorb pollutants such as organic colloids, heavy metals, and pigments in the water. The inner wall of the water diversion channel 4 is provided with a slot 33 that matches the shape of the porous filter brick. The porous filter brick 3 can be fixed in the water diversion channel 4 through the slot 33. In one embodiment of the present invention, the porous filter brick 3 is 40cm long, 40cm wide, and 40cm high, and is positioned 1m behind the debris barrier 2; the outer shell 32 is 2cm thick, and the diameter of the circular pores of the activated carbon core 31 is 2.5cm; the inner walls of the lower side of the water diversion channel 4 are reduced outward by 2cm to form slots 33, and the porous filter brick 3 is inserted into the slots 33 and fixed in the water diversion channel, with the activated carbon core 31 flush with the inner wall of the water diversion channel 4.

[0038] Please see the appendix Figure 5 The automatic dispensing box 5 is located on the upper part of the water diversion channel 4. The automatic dispensing box 5 includes a storage tank 51, a controller 52, a discharge pipe 53, a fixing stake 54, a rotating wheel 55, and a track 56. The storage tank 51 and the controller 52 are located inside the automatic dispensing box 5. One end of the discharge pipe 53 is connected to the storage tank 51, and the other end passes through the controller 52, dispensing the disinfectant from the storage tank 51 into the water diversion channel 4. The controller 52 is used to control the dispensing amount from the discharge pipe 53. The bottom of the automatic dispensing box 5 is provided with a fixing stake 54 for fixing the rotating wheel 55 inside the water diversion channel 4. The rotating shaft of the rotating wheel 55 is connected to the rotating shaft of the controller 52 through the track 56. The track 56 transmits the rotation signal of the rotating wheel 55 to the controller 52, so that the controller 52 can calculate the water flow rate in the water diversion channel 4, thereby controlling the amount of disinfectant dispensed.

[0039] In one embodiment of the present invention, the automatic dispensing box 5 is located 1m before the connection between the water intake channel 4 and the water storage tank 10, and is made of stainless steel, with a length of 1m, a width of 1m, and a height of 1m; the rotating wheel 505 is made of polypropylene (PP) material and has a diameter of 5 inches. Sodium hypochlorite powder is selected as the disinfectant, with 0.3mg of sodium hypochlorite added per liter of water.

[0040] Please see the appendix Figure 6 The water storage tank 10 is divided into an outer tank 101 and an inner tank 102, which are separated by a filter partition wall. An ultraviolet lamp 105 is installed on the outer wall of the filter partition wall for water disinfection. The filter partition wall includes a filter layer 103 and a seepage barrier wall 104. The filter layer 103 comprises a coarse gravel layer, a medium gravel layer, a fine gravel layer, and a biofilm filter layer, arranged sequentially from the outside to the inside, for deep water filtration. Multiple filter layers 103 and seepage barrier walls 104 are provided, spaced apart from each other. Water in the outer tank 101 enters the inner tank 102 after being filtered by the filter layer 103 of the filter partition wall. This filtration removes some residual chlorides, dead microorganisms, and precipitated impurities, ensuring that the stored water in the inner tank 102 meets the required water quality.

[0041] In one embodiment of the present invention, both the outer pool 101 and the impermeable wall 104 of the filter partition are made of silicate cement and K11 waterproof coating, and are cylindrical in shape; the outer pool 101 has an inner diameter of 10m and a height of 5.5m; the inner pool 102 has an inner diameter of 6m and a height of 5.5m; each filter layer is 10cm thick, and each layer is separated by geotextile; four filter layers 103 and four impermeable walls 104 are provided, and they are spaced apart.

[0042] Please see the appendix Figure 7 The outer pool 101 is equipped with a float 6, a connecting rope 7, a drain cover 8, and a drain pipe 9. The drain pipe 9 is located at the bottom of the outer pool 101. One end of the drain cover 8 is rotatably connected to the drain pipe 9, and the other end is connected to the float 6 via the connecting rope 7. In one embodiment of the invention, the float 6 is made of polypropylene (PP) material and is a hollow sphere with an inner diameter of 92 mm and an outer diameter of 94 mm. The connecting rope 7 is a nylon line with a diameter of 1 mm and a length of 5 m. The drain cover 8 is made of stainless steel and its size is consistent with the cross-section of the drain pipe 9. The drain pipe 9 is a PVC thickened drain pipe with an inner diameter of 160 mm and a thickness of 4 mm, with one end inside the water storage tank having a 60° slope. The float 6 lifts the drain cover 8 by the buoyancy of the water, allowing water to be discharged through the drain pipe 9.

[0043] The rainwater collection, storage and purification device of the present invention is preferably located next to urban drainage ditches, highway drainage ditches and other ditches with solid soil and open surroundings.

[0044] This invention provides a device for collecting, storing, and purifying stormwater resources in drainage ditches. This integrated device combines water intake, decontamination, purification, disinfection, sterilization, filtration, and water storage to treat stormwater resources, solving the problem of existing urban drainage ditch congestion and reducing water waste. The working principle is as follows: When rainfall reaches a certain intensity, the rainwater falling to the ground converges into a stream and flows into the ditch under the action of the collection surface. It is then introduced into the device via a water intake channel 4 connected to the ditch 1. During operation, the water flow passes through a debris-blocking net 2 to intercept solid debris such as leaves. The detachable design allows for easy cleaning by staff to prevent blockages. When the water reaches the porous filter brick 3, the activated carbon core adsorbs pollutants such as organic colloids, oil, heavy metals, and pigments. Subsequently, the water flows along the water intake channel 4, washing over the rotating wheel 55, causing it to rotate. The rotation speed signal is transmitted to the controller 52 via the track 56, allowing the controller 52 to calculate the water flow rate introduced into the storage tank 10, thereby controlling the amount of sodium hypochlorite powder added to the storage tank 51. Sodium hypochlorite powder is added and thoroughly mixed with water to disinfect it. The water then continues to flow along the irrigation canal 4 into the outer pool 101 of the reservoir. While the water in the outer pool 101 is settling, it is irradiated by ultraviolet lamps 105, eliminating over 90% of microorganisms. After passing through the filter layer 103 of the filter wall, the water in the outer pool 101 enters the inner pool 102, where residual chlorides, dead microorganisms, and precipitated impurities are removed, ensuring the water in the inner pool 102 meets the required water quality. The drain pipe 9 connects to the city's drainage system. When the water level in the outer pool 101 reaches the interface between the irrigation canal 4 and the reservoir 10, the float 6 opens the drain cover 8 via the connecting rope 7, allowing the water in the outer pool 101, along with some sediment, to flow into the city's drainage system through the drain pipe 9. After the water level drops, the drain cover 8 closes, stopping the drainage. The inner pool 102 can be connected to a pumping device for drinking water projects or industrial water use.

[0045] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily 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 invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for collecting, storing, and purifying stormwater resources in ditches, characterized in that, The system includes a water diversion channel (4), a debris barrier (2), porous filter bricks (3), an automatic dispensing box (5), and a water storage tank (10). One end of the water diversion channel (4) is connected to a ditch (1), and the other end is connected to the water storage tank (10). The debris barrier (2), porous filter bricks (3), and automatic dispensing box (5) are sequentially arranged on the water diversion channel (4). The debris barrier (2) is located at the connection between the water diversion channel (4) and the ditch (1). The automatic dispensing box (5) is located on the upper part of the water diversion channel (4) and is used to dispense disinfectant. The water storage tank (10) is divided into an outer tank (101) and an inner tank (102), which are separated by a filter partition wall. The filter partition wall is used for deep water filtration. The porous filter brick (3) is located behind the debris-blocking net (2) and includes an outer shell (32) and an activated carbon core (31). The outer shell (32) is a hollow structure, and the activated carbon core (31) is located inside the outer shell (32). The activated carbon core (31) has multiple circular pores neatly distributed inside for adsorbing pollutants. The inner wall of the water diversion channel (4) is provided with a slot (33), and the porous filter brick (3) is fixed in the water diversion channel (4) through the slot (33); The filter partition includes a filter layer (103) and a seepage barrier (104). Multiple filter layers (103) and multiple seepage barriers (104) are provided and spaced apart. The filter layer (103) is provided with a coarse crushed stone layer, a medium crushed stone layer, a fine crushed stone layer and a biofilm filter layer from the outside to the inside.

2. The stormwater collection, storage, and purification device for ditches according to claim 1, characterized in that, The water diversion channel (4) is set horizontally downward from one end connected to the ditch (1) to the other end connected to the water storage tank.

3. The stormwater collection, storage, and purification device for ditches according to claim 1, characterized in that, The debris barrier (2) has a protrusion at one end near the ditch (1) and a mesh fixed at the other end. The protrusion of the debris barrier (2) cooperates with the side wall of the water diversion channel (4) and is detachably installed inside the water diversion channel (4).

4. The ditch stormwater resource collection, storage, and purification device according to claim 1, characterized in that, The automatic dispensing box (5) includes a storage tank (51), a controller (52), a discharge pipe (53), a fixing post (54), a rotating wheel (55), and a track (56); the storage tank (51) and the controller (52) are located inside the automatic dispensing box (5); one end of the discharge pipe (53) is connected to the storage tank (51), and the other end passes through the controller (52) to dispense the disinfectant in the storage tank (51) into the water diversion channel (4); the controller (52) is used to control the dispensing amount of the discharge pipe (53); the bottom of the automatic dispensing box (5) is provided with a fixing post (54) for fixing the rotating wheel (55) inside the water diversion channel (4); the track (56) is used to connect the rotating shaft of the rotating wheel (55) and the rotating shaft of the controller (52).

5. The stormwater resource collection, storage, and purification device for ditches according to claim 1, characterized in that, The outer wall of the filter partition is equipped with an ultraviolet lamp (105) for water disinfection.

6. The ditch stormwater resource collection, storage, and purification device according to claim 1, characterized in that, The outer pool (101) is equipped with a float (6), a connecting rope (7), a drain cover (8), and a drain pipe (9); the drain pipe (9) is located at the bottom of the outer pool (101) and connects to the outside; one end of the drain cover (8) is rotatably connected to the drain pipe (9), and the other end is connected to the float (6) through the connecting rope (7); the float (6) is used to lift the drain cover (8) so that water can be discharged through the drain pipe (9).

Images