A device for collecting and treating initial rain pollution of a sewage inspection well of a drainage system

Abstract

This invention discloses a device for collecting and treating initial rainwater pollution from a sewage inspection well in a drainage system. The device includes an inspection well body with a cover, the cover having a solar power supply device and a recessed hole. The inspection well body contains a fixed plate, a primary flow tank, and a secondary water receiving tank. A suction pump and a pump are mounted on the fixed plate via a charging base, and the charging base contains a battery electrically connected to the solar power supply device. A flow guiding device with a flow rate sensor is installed between the primary flow tank and the recessed hole. The flow guiding device is connected to a branch pipe through which the suction pump leads to the primary flow tank. The primary flow tank is connected to a flow pipe leading to the secondary water receiving tank and contains a liquid level sensor and a suspended solids detector. The secondary water receiving tank is connected to a drainage pipe with a filter grid, and a pump is installed in the drainage pipe, which extends out of the inspection well body. This invention can automatically collect and treat rainwater, alleviate the flow pressure in sewage pipes, save energy and reduce consumption, and also collect initial rainwater pollution and monitor changes in suspended solids pollution levels.

Description

Technical Field

[0001] This invention relates to the field of rainwater treatment technology, and in particular to a device for collecting and treating initial rainwater pollution from sewage inspection wells in drainage systems. Background Technology

[0002] As cities are undergoing large-scale transformation of their pipe networks to separate rainwater and sewage, the opacity of urban road sections is basically as high as 95%, and there are low-lying and flood-prone areas. Sewage inspection wells are installed in low-lying road sections. In the event of heavy rainfall, a large amount of rainwater flows over the surface of the sewage inspection wells, causing a certain depth of waterlogging. At this time, the rainwater will flow through the holes of the sewage inspection wells into the sewage inspection wells.

[0003] During rainy days, rainwater cannot be effectively drained, and some flows into sewage pipes through manhole covers, causing an increase in rainwater runoff in the sewage system. This situation increases the treatment load on sewage treatment plants, leading to a series of problems in the sewage treatment process. First, the increased rainwater causes the sewage level in the pipes to rise beyond design limits, resulting in pipe overload. Overload not only increases pipe pressure but also affects the normal flow of sewage, potentially causing blockages and leaks. Second, the sewage treatment plant's capacity is limited, and the increased rainwater volume further intensifies the treatment pressure. Sewage treatment equipment needs to consume more energy and resources to treat pollutants in the rainwater, increasing treatment costs and workload. Furthermore, rainwater contains a large amount of solid particles, organic pollutants, and other contaminants, requiring additional treatment steps and processes for removal. Sewage treatment plants need to add sedimentation tanks, filters, and other equipment to accommodate these additional treatment demands, increasing investment and operating costs. Finally, due to the limited treatment capacity of the sewage treatment plant, some rainwater may not be treated in time and may be directly discharged into surrounding water bodies, potentially causing environmental pollution and ecological damage.

[0004] As rainfall intensity and duration increase, on the one hand, the flow pressure in sewage pipes is greatly affected, resulting in a high load on sewage treatment plants and influent concentrations failing to meet standards. On the other hand, heavy rainfall washes away a lot of solid waste and debris mixed in with the sewage. Improper handling can cause blockages, and over time, a large amount of sediment remains in the sewage pipes. For pipes with weak flushing capacity, the sediment gradually hardens and accumulates, further hindering the pipe's flow capacity.

[0005] Therefore, there is an urgent need to design a sewage inspection well initial rainwater pollution collection and treatment device that can not only collect and treat the rainwater flowing into the sewage pipes through the sewage inspection well during rainfall, thus relieving the flow pressure of the sewage pipes and reducing the sewage treatment load of the sewage treatment plant; but also collect initial rainwater pollution and monitor the changes in the amount of suspended solids pollution caused by the flushing effect of initial rainwater, providing data support for pre-intervention solutions to improve the flow capacity of sewage pipes and for research on the impact of pollution on the urban periphery. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a device for collecting and treating initial rainwater pollution from sewage inspection wells in drainage systems. This device aims to address the problems in the prior art where, during heavy rainfall, a large amount of rainwater flows into the sewage pipes through the sewage inspection well openings, causing high flow pressure in the sewage pipes and a heavy load on the sewage treatment plant. On the other hand, the scouring effect leads to an increase in suspended solids in the sewage, and after a long period of time, a large amount of hardened bottom mud easily remains in the sewage pipes, ultimately affecting the flow capacity of the pipes.

[0007] The technical solution of this invention is: a device for collecting and treating initial rainwater pollution from a sewage inspection well in a drainage system, comprising an inspection well body, a well cover installed on the top of the inspection well body, the well cover having a solar power supply device and a recessed hole; a fixed plate horizontally installed inside the inspection well body, a water suction pump and a water pump respectively installed on the fixed plate via a charging base, a battery electrically connected to the water pump being installed inside the charging base, and the solar power supply device being electrically connected to each battery; a primary flow tank and a secondary water receiving tank are provided below the fixed plate, and a flow guiding device is provided between the primary flow tank and the recessed hole, guiding... The flow device is equipped with a flow velocity sensor, and the flow guiding device is also connected to a diversion pipe leading to the primary flow tank. The suction pump is installed on the diversion pipe and is triggered by the detection signal of the flow velocity sensor. The primary flow tank is connected to a flow pipe leading to the secondary water receiving tank. The primary flow tank is also equipped with a liquid level sensor and a suspended solids detector. The secondary water receiving tank is connected to a drainage pipe. One end of the drainage pipe is located at the bottom of the secondary water receiving tank and the pipe opening is equipped with a filter grid. The other end extends out of the inspection well body to the outside. The pump is installed on the drainage pipe and is triggered by the detection signal of the liquid level sensor.

[0008] Furthermore, the solar power supply device described in this invention includes a device housing, a power supply module installed inside the device housing, and a junction box. The power supply module includes a first encapsulation glass, a solar panel, and a second encapsulation glass arranged sequentially from top to bottom. The outer surfaces of both the first and second encapsulation glass are provided with an anti-reflective layer. The junction box is electrically connected to the solar panel via a connecting wire. The junction box is also electrically connected to the charging base at the bottom of the water pump and the water pump via a first wire and a second wire, respectively.

[0009] Furthermore, the upper surface of the device housing in this invention is provided with an installation groove, the power supply module is installed in the installation groove and fixed by a fixed frame, the fixed frame is locked to the device housing by a fastener, and a waterproof sealing structure is provided between the fixed frame, the device housing and the power supply module respectively.

[0010] Furthermore, in this invention, the first and second encapsulation glass are made of reinforced glass, and the waterproof sealing structure is a waterproof gasket or a waterproof sealant is used to seal the gap between the fixed frame and the device housing and the power supply module.

[0011] Furthermore, the junction box described in this invention has a side lead-out head and a bottom lead-out head for guiding the connecting wire and the wire through, respectively. The device housing has an installation cavity for installing the junction box. One end of the installation cavity is connected to the outside, and one side and the bottom are connected to the installation groove and the outside, respectively. When the junction box is inserted from one end of the installation cavity, the side lead-out head passes through to one side of the installation groove, and the bottom lead-out head passes through to the outside.

[0012] Furthermore, in this invention, the junction box is encapsulated and fixed by an encapsulation block. The shape and size of the encapsulation block match the mounting cavity and can fit and fix the junction box, side lead-out head, and bottom lead-out head after being inserted into the mounting cavity. The outer surface of the encapsulation block is provided with a recessed portion, and two locking blocks installed in the slide groove are provided in the recessed portion. The two locking blocks are respectively installed at both ends of the slide rod by springs. The other ends of the two locking blocks extend out of the two sides of the encapsulation block to the outside. The device housing is provided with two locking grooves that correspond to and lock the two locking blocks one by one.

[0013] Furthermore, in this invention, both locking blocks are provided with unlocking guide arrows, and the bottom of the encapsulation block is also provided with a finger groove to facilitate pulling it outward.

[0014] Furthermore, the solar power supply device described in this invention is embedded in the manhole cover, with the bottom lead extending through the manhole cover into the manhole body. The bottom lead has a threaded structure on its exterior, and a locking nut is threaded onto the bottom lead, thereby fixing the solar power supply device to the manhole cover.

[0015] Furthermore, the flow guiding device described in this invention includes a connecting seat and a flow guiding pipe connected to the connecting seat. An elastic rubber ring is connected to the top of the connecting seat, and a mounting slot communicating with a recessed hole is opened on one side of the bottom of the well cover. The connecting seat can be inserted into the mounting slot and secured by the elastic rubber ring, and fit tightly against the well cover. The flow guiding pipe extends through the fixed plate into the first-stage flow tank. The output ends of the flow guiding pipe and the diversion pipe are both inclined and extend towards the inner wall of the first-stage flow tank. The sensing probe of the flow velocity sensor is embedded inside the flow guiding pipe.

[0016] Furthermore, the inner wall of the inspection well body described in this invention is provided with a ring of multiple U-shaped locking blocks arranged at intervals, and the fixing plate is provided with a notch for each U-shaped locking block to pass through in a corresponding manner, and a locking member is provided in the notch to cooperate with the U-shaped locking block for locking.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1) The device of this invention is mainly used in sewage inspection wells in low-lying areas to collect and treat rainwater flowing in during rainfall, share the flow pressure of sewage pipes, reduce the sewage treatment load of sewage treatment plants, and can be installed in key inspection wells, eliminating the need to install it in most of the city's pipes, which can greatly reduce the pressure on maintenance personnel. This device can operate automatically through intelligent monitoring devices, continuously discharging rainwater to the outside. The outlet of the drainage pipe can be set away from the road, at a certain outlet on the surrounding soil slope. The device can also collect initial rain pollution and monitor the changes in the amount of suspended solids pollution caused by the flushing effect of initial rain, providing data support for pre-intervention solutions to improve the flow capacity of sewage pipes and for research on the impact of pollution on the urban periphery.

[0019] 2) In this invention, by building a solar power supply device inside the manhole cover, it is possible to automatically store electrical energy, save energy and reduce consumption. The water pump and the water pump can work continuously by charging the charging base. The charging base can store 72 hours of working electrical energy and can also receive solar energy. The internal battery can also be replaced manually without affecting the normal operation of the pump.

[0020] 3) In this invention, the internal power supply module of the solar power supply device is a three-layer structure with a solar panel sandwiched between two layers of tempered glass. The tempered glass is harder and more durable than ordinary glass, which can effectively resist external impact and pressure, reduce the possibility of cracks, and protect the solar panel while transmitting light. The anti-reflective layer on the outer surface of the two layers of glass can also reduce the reflection of sunlight and improve the absorption rate and conversion efficiency of the solar panel.

[0021] 4) In this invention, the junction box inside the solar power supply device is easy to install and maintain. During installation, it can be inserted into the device housing from one side and fixed by the encapsulation block. During disassembly, the two locking blocks at the front end of the encapsulation block can be released by sliding and the bottom finger groove can be used to quickly pull out the encapsulation block, thereby allowing the junction box to be quickly removed. The operation is simple and convenient.

[0022] 5) In this invention, the solar power supply device is waterproof and sealed as a whole. After being embedded and installed inside the manhole cover, it can be quickly connected to the bottom lead-out head through the locking nut to achieve the fixed installation of the solar power supply device. Furthermore, since the fixing structure is at the bottom of the manhole cover, it can also prevent the solar power supply device from being lost.

[0023] 6) In this invention, the recessed holes facilitate the automatic flow of water into the collection, the flow rate sensor is used to trigger the water pump to work, increase the processing capacity, and the inclined setting of the output end of the guide pipe and the diversion pipe allows the water to flow down along the barrel wall, preventing the water from flowing down vertically and disturbing the solid suspended matter brought by the initial rain pollution in the lower layer.

[0024] 7) In this invention, the suspended solids detector at the bottom of the primary flow tank can monitor the changes in solid suspended solids caused by the initial rain wash under different time periods and different rainfall intensities. The flow pipe is set at the upper part of the tank, which can draw out the water body of the supernatant in the tank, ensuring that the solid suspended solids polluted by the initial rain do not flow out, but remain in the lower layer of the tank, making it convenient to collect the initial rain pollution.

[0025] 8) In this invention, the liquid level sensor is used to trigger the water pump to quickly extract water from the secondary water receiving tank so that it has enough water holding space. The filter grid is set to filter and protect the pipeline to prevent silt and debris from clogging it.

[0026] 9) In this invention, the flow guiding device below the recessed hole can be quickly connected to and tightly fitted with the manhole cover. After the connecting seat at the top is inserted from one side of the manhole cover, the elastic rubber ring can both lock and fix it and achieve a tight fit with the manhole cover, resulting in good sealing performance.

[0027] 10) In this invention, the fixing plate can be quickly inserted into the U-shaped card block through the snap-fit ​​component, thereby quickly installing it on the inner wall of the inspection well body, which is simple and convenient to operate. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention;

[0029] Figure 2 This is a schematic diagram of the installation of the solar power supply device described in this invention;

[0030] Figure 3 This is a top view of the solar power supply device described in this invention;

[0031] Figure 4 This is a front view of the solar power supply device described in this invention;

[0032] Figure 5 This is a schematic diagram of the installation of the encapsulation block in the solar power supply device of the present invention;

[0033] Figure 6 This is a schematic diagram showing the encapsulation block in the solar power supply device of the present invention after installation.

[0034] Figure 7 This is a schematic diagram of the installation of the flow guiding device described in this invention;

[0035] Figure 8This is a schematic diagram showing the flow guiding device described in this invention after installation.

[0036] Figure 9 This is a schematic diagram of the structure in which the fixed plate and the inspection well body are installed together as described in this invention.

[0037] The components include: 1. Inspection well body; 2. Well cover; 3. Solar power supply device; 4. Recessed hole; 5. Fixing plate; 6. Charging base; 7. Water suction pump; 8. Water pump; 9. Primary flow tank; 10. Secondary water receiving tank; 11. Flow guiding device; 111. Connecting seat; 112. Flow guiding pipe; 113. Elastic rubber ring; 12. Flow velocity sensor; 13. Diversion pipe; 14. Flow pipe; 15. Liquid level sensor; 16. Suspended solids detector; 17. Drainage pipe; 18. Filter grid; 19. Device housing; 191. Mounting groove; 192. Installation... 193. Cavity; 20. Locking groove; 20. Power supply module; 201. First encapsulation glass; 202. Solar panel; 203. Second encapsulation glass; 204. Anti-reflective layer; 21. Junction box; 211. First wire; 212. Second wire; 22. Fixed frame; 23. Side lead-out; 24. Bottom lead-out; 25. Encapsulation block; 251. Recess; 252. Slide groove; 253. Locking block; 254. Spring; 255. Finger groove; 26. Locking nut; 27. U-shaped locking block; 28. Notch; 29. ​​Snap-fit ​​component; 30. Mounting slot. Detailed Implementation

[0038] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] Example:

[0040] The accompanying drawings illustrate a specific embodiment of the present invention: a sewage inspection well rainwater collection and treatment device for a drainage system. Firstly, in conjunction with... Figure 1 As shown, the device mainly includes a manhole body 1, a manhole cover 2 installed on the top of the manhole body 1, and a solar power supply device 3 and a recessed hole 4 on the manhole cover 2.

[0041] A fixed plate 5 is horizontally installed inside the inspection well body 1. A suction pump 7 and a pumping pump 8 are respectively mounted on the fixed plate 5 via a charging base 6. The charging base 6 contains a battery electrically connected to the pumps, and a solar power supply device 3 is electrically connected to each battery. The suction pump 7 and pumping pump 8 are charged via the charging base 6, allowing for continuous operation. The charging base 6 can store 72 hours of operating energy and can also receive solar energy, thus saving energy and reducing consumption. The internal batteries can also be manually replaced without affecting the normal operation of the pumps.

[0042] Below the fixed plate 5, there is a primary flow tank 9 and a secondary water receiving tank 10, which can be fixedly installed on the well wall of the inspection well body 1. A flow guiding device 11 is provided between the primary flow tank 9 and the recessed hole 4. A flow velocity sensor 12 is installed inside the flow guiding device 11. The recessed hole 4 facilitates the automatic flow of water into the collection, which flows into the primary flow tank 9 through the flow guiding device 11, and the flow velocity is monitored by the flow velocity sensor 12.

[0043] In this embodiment, combined with Figure 7 , Figure 8 The diversion device 11 includes a connecting seat 111 and a diversion pipe 112 connected to the connecting seat 111. An elastic rubber ring 113 is connected to the top of the connecting seat 111. A mounting groove 30 communicating with a recessed hole 4 is opened on one side of the bottom of the manhole cover 2. The connecting seat 111 can be inserted into the mounting groove 30 and secured by the elastic rubber ring 113, thus tightly fitting against the manhole cover 2. When the connecting seat 111 is inserted, the elastic rubber ring 113 is compressed, such as... Figure 7 As shown; then release the connecting seat 111, the elastic rubber ring 113 rebounds, and at the same time, the connecting seat 111 is pressed and fixed in the mounting groove 30, while the elastic rubber ring 113 is tightly fitted to the bottom of the manhole cover 2, as shown. Figure 8 As shown, water can flow into the connector 111 through the recessed hole 4, and then into the guide pipe 112. Due to the tight suction of the elastic rubber ring 113, no leakage will occur. In this embodiment, the guide pipe 112 extends through the fixed plate 5 into the first-stage flow tank 9, and the sensing probe of the flow rate sensor 12 is embedded inside the guide pipe 112.

[0044] The flow guiding device 11 is also connected to a diversion pipe 13 leading to the primary flow tank 9. The diversion pipe 13 is connected to the flow guiding pipe 112, and the diversion pipe 13 also extends through the fixed plate 5 into the primary flow tank 9. The water suction pump 7 is installed on the diversion pipe 13 and is triggered by the detection signal of the flow velocity sensor 12. In specific operation, when the flow velocity sensor 12 detects excessive rainfall, it triggers the water suction pump 7 to work, quickly diverting and pumping away the rainwater to increase the processing capacity. In this embodiment, the output ends of the flow guiding pipe 112 and the diversion pipe 13 are both inclined and extend towards the inner wall of the primary flow tank 9. This allows the water to flow down along the tank wall, preventing the water from flowing vertically down and disturbing the solid suspended matter brought by the initial rainwater pollution in the lower layer.

[0045] The primary overflow tank 9 is also connected to an overflow pipe 14 leading to the secondary water receiving tank 10. The overflow pipe 14 is located at the upper part of the primary overflow tank 9, which can draw out the water body of the supernatant in the tank, ensuring that the suspended solids of the initial rainwater pollution do not flow out, but remain in the lower layer of the tank for easy collection of the initial rainwater pollution. The primary overflow tank 9 is also equipped with a liquid level sensor 15 and a suspended solids detector 16. The suspended solids detector 16 is located at the bottom and can monitor the changes in the suspended solids caused by the initial rainwater runoff at different times and under different rainfall intensities.

[0046] The secondary water receiving tank 10 is connected to a drainage pipe 17. One end of the drainage pipe 17 is located at the bottom of the secondary water receiving tank 10, and a filter grid 18 is installed at the pipe opening. The filter grid 18 serves to filter and protect the pipe, preventing silt and debris from entering and causing blockage. The drainage pipe 17 passes through the fixing plate 5 and extends out of the inspection well body 1 to the outside. A water pump 8 is installed on the drainage pipe 17 and is triggered by the detection signal of the liquid level sensor 15. When the liquid level sensor 15 sends a high liquid level signal, the water pump 8 quickly pumps water out of the secondary water receiving tank 10 to provide sufficient water storage space. It should be noted that the output end of the drainage pipe 17 is located below the manhole cover 2. During installation, it needs to pass through the manhole wall, enter the soil layer, and be buried underground. The outlet of the drainage pipe 17 can be located away from the road, at a discharge point on the surrounding soil slope, ultimately achieving the purpose of continuously pumping excess rainwater to the outside and relieving the overflow pressure of the sewage pipe.

[0047] Furthermore, in this embodiment, combined with Figures 2 to 6 The solar power supply device 3 includes a housing 19, a power supply module 20 installed inside the housing 19, and a junction box 21. The power supply module 20 includes, from top to bottom, a first encapsulation glass 201, a solar panel 202, and a second encapsulation glass 203. Both the first and second encapsulation glass 201 and 203 have an anti-reflective layer 204 on their outer surfaces. The first and second encapsulation glass 201 and 203 are made of tempered glass. The power supply module 20 adopts a three-layer structure with the solar panel 202 sandwiched between two layers of tempered glass. Tempered glass is harder and more durable than ordinary glass, effectively resisting external impacts and pressures, reducing the possibility of cracks. While allowing light to pass through, it also protects the solar panel 202. The anti-reflective layer 204 on the outer surfaces of the two glass layers also reduces the reflection of sunlight, improving the absorption rate and conversion efficiency of the solar panel 202.

[0048] The upper surface of the device housing 19 has a mounting groove 191. The power supply module 20 is installed in the mounting groove 191 and secured by a fixing frame 22. (Not shown) The fixing frame 22 is locked to the device housing 19 by a fastener, which can be a screw. Waterproof sealing structures are also provided between the fixing frame 22 and the device housing 19 and the power supply module 20. These waterproof sealing structures can be waterproof gaskets, or the gaps between the fixing frame 22 and the device housing 19 and the power supply module 20 can be sealed with waterproof adhesive, both of which provide good waterproofing.

[0049] Junction box 21 is installed on one side of power supply module 20. Junction box 21 is electrically connected to solar panel 202 via connecting wires. Junction box 21 is also electrically connected to charging base 6 at the bottom of water pump 7 and water pump 8 via first wire 211 and second wire 212, respectively. Side lead-out head 23 and bottom lead-out head 24 are provided on one side and bottom of junction box 21, respectively, for guiding connecting wires and wires through. The device housing 19 has a mounting cavity 192 for installing junction box 21. One end of mounting cavity 192 is connected to the outside, and one side and bottom are connected to mounting groove 191 and the outside, respectively. When junction box 21 is inserted from one end of mounting cavity 192, side lead-out head 23 passes to one side of mounting groove 191 and bottom lead-out head 24 passes to the outside. The connecting wire in side lead-out head 23 can be connected to solar panel 202. The first wire 211 and second wire 212 in bottom lead-out head 24 can pass out of device housing 19 for connecting the two charging bases 6.

[0050] After the junction box 21 is inserted into the mounting cavity 192, it is sealed and fixed by the encapsulation block 25. The shape and size of the encapsulation block 25 match the mounting cavity 192 and can fit and wrap around the junction box 21, the side lead-out head 23, and the bottom lead-out head 24 after insertion into the mounting cavity 192, thus fully fixing the junction box 21. Specifically, the outer surface of the encapsulation block 25 has a recess 251, and two locking blocks 253 installed in the slide groove 252 are provided in the recess 251. The two locking blocks 253 are respectively installed at both ends of the slide rod by springs 254, and the other ends of the two locking blocks 253 protrude from both sides of the encapsulation block 25 to the outside. The device housing 19 has two locking grooves 193 that correspond one-to-one with the two locking blocks 253 for locking. When the encapsulation block 25 is inserted into the mounting cavity 192, as Figure 5 As shown, align and slowly push inwards until the two locking blocks 253 are inserted into the locking grooves 193 on both sides, thus completing the installation. Figure 6 As shown (where junction box 21 is not shown).

[0051] In this embodiment, as Figure 4Both locking blocks 253 are equipped with unlocking guide arrows to indicate the unlocking direction. The bottom of the encapsulation block 25 is also provided with a finger groove 255 for easy removal. When disassembling the encapsulation block 25, first slide the two locking blocks 253 towards the middle to release them from the locking groove 193, and then insert your finger into the bottom finger groove 255 to pull the encapsulation block 25 outward. The internal junction box 21 can also be quickly removed, making the operation simple and convenient.

[0052] In this embodiment, as Figure 2 The solar power supply device 3 is embedded in the manhole cover 2. A bottom lead-out head 24 extends through the manhole cover 2 into the manhole body 1. The first wire 211 and the second wire 212 inside the bottom lead-out head 24 can pass through the manhole body 1 and connect to the two charging bases 6. The bottom lead-out head 24 also has a threaded structure, and the solar power supply device 3 can be fixed to the manhole cover 2 by connecting a locking nut 26. The solar power supply device 3 is waterproof and sealed, and the bottom fixing method prevents the solar power supply device 3 from being lost. In this embodiment, the solar power supply device 3 is horizontally embedded, but it is not limited to this; it can also be embedded at a certain angle in the manhole cover 2. The fixing method is the same, using a locking nut 26 at the bottom. This can reduce or avoid the probability of water accumulation and sludge / debris covering the surface of the solar power supply device 3, further ensuring the absorption rate and conversion efficiency of the solar panel 202.

[0053] In addition, combined Figure 1 , Figure 9 The inner wall of the inspection well body 1 is provided with a ring of U-shaped locking blocks 27 arranged at intervals. The fixing plate 5 is provided with a notch 28 for each U-shaped locking block 27 to pass through. The notch 28 is provided with a snap-fit ​​component 29 that cooperates with the U-shaped locking block 27 for locking. In actual operation, the fixing plate 5 can be quickly inserted into the U-shaped locking block 27 through the snap-fit ​​component 29, thereby quickly installing it on the inner wall of the inspection well body, which is simple and efficient.

[0054] The device of this invention primarily functions in sewage inspection wells located in low-lying areas. It collects and treats rainwater flowing in during rainfall, relieving pressure on sewage pipes and reducing the load on sewage treatment plants. It can be installed in key inspection wells, eliminating the need to install it in most urban pipe systems, thus significantly reducing the workload of maintenance personnel. This device operates automatically via intelligent monitoring, continuously discharging rainwater to the outside. The outlet of drainage pipe 17 can be located away from roads, exiting at a point on a surrounding soil slope. Simultaneously, the device collects initial rainwater pollution, monitoring changes in suspended solids pollution caused by initial rainwater runoff. This provides data support for pre-intervention solutions to improve sewage pipe flow capacity and for research on the impact of pollution on urban peripheries.

[0055] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All modifications made according to the spirit and essence of the main technical solution of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for collecting and treating initial rainwater pollution from sewage inspection wells in a drainage system, characterized in that: Includes a manhole body (1), with a manhole cover (2) installed on the top of the manhole body (1), and the manhole cover (2) is provided with a solar power supply device (3) and a recessed hole (4); A fixed plate (5) is horizontally installed inside the inspection well body (1). A water pump (7) and a water pump (8) are respectively installed on the fixed plate (5) via a charging base (6). A storage battery connected to the water pump is provided inside the charging base (6). The solar power supply device (3) is connected to each storage battery. Below the fixed plate (5) is a primary flow tank (9) and a secondary water receiving tank (10). A flow guiding device (11) is provided between the primary flow tank (9) and the recessed hole (4). A flow velocity sensor (12) is provided inside the flow guiding device (11). A diversion pipe (13) leading to the primary flow tank (9) is also connected to the flow guiding device (11). The water pump (7) is installed on the diversion pipe (13) and is triggered to work by the detection signal of the flow velocity sensor (12). A flow pipe (14) leading to a secondary water receiving tank (10) is connected to the primary flow tank (9). A liquid level sensor (15) and a suspended solids detector (16) are also installed inside the primary flow tank (9). A drainage pipe (17) is connected to the secondary water receiving tank (10). One end of the drainage pipe (17) is located at the bottom of the secondary water receiving tank (10) and a filter grid (18) is installed at the pipe opening. The other end extends out of the inspection well body (1) to the outside. A water pump (8) is installed on the drainage pipe (17) and is triggered to work by the detection signal of the liquid level sensor (15).

2. The device according to claim 1, characterized in that: The solar power supply device (3) includes a device housing (19), a power supply module (20) installed in the device housing (19), and a junction box (21). The power supply module (20) includes a first encapsulation glass (201), a solar panel (202), and a second encapsulation glass (203) arranged sequentially from top to bottom. The outer surfaces of the first encapsulation glass (201) and the second encapsulation glass (203) are provided with an anti-reflective layer (204). The junction box (21) is electrically connected to the solar panel (202) through a connecting wire. The junction box (21) is also electrically connected to the charging base (6) at the bottom of the water pump (7) and the water pump (8) through a first wire (211) and a second wire (212), respectively.

3. The device according to claim 2, characterized in that: The upper surface of the device housing (19) is provided with a mounting groove (191). The power supply module (20) is installed in the mounting groove (191) and encapsulated and fixed by a fixing frame (22). The fixing frame (22) is locked and fixed to the device housing (19) by a fastener. A waterproof sealing structure is also provided between the fixing frame (22) and the device housing (19) and the power supply module (20).

4. The device according to claim 3, characterized in that: The first encapsulation glass (201) and the second encapsulation glass (203) are made of reinforced glass. The waterproof sealing structure is a waterproof gasket or the gap between the fixed frame (22) and the device housing (19) and the power supply module (20) is sealed with waterproof glue.

5. A device for collecting and treating initial rainwater pollution from a sewage inspection well in a drainage system according to claim 3, characterized in that: The junction box (21) is provided with a side lead-out head (23) and a bottom lead-out head (24) for guiding the connecting wire and the wire to pass through. The device housing (19) has an installation cavity (192) for installing the junction box (21) inside. One end of the installation cavity (192) is connected to the outside, and one side and the bottom are connected to the installation groove (191) and the outside, respectively. When the junction box (21) is inserted from one end of the installation cavity (192), the side lead-out head (23) passes through to one side of the installation groove (191) and the bottom lead-out head (24) passes through to the outside.

6. A device for collecting and treating initial rainwater pollution from a sewage inspection well in a drainage system according to claim 5, characterized in that: The junction box (21) is encapsulated and fixed by the encapsulation block (25). The shape and size of the encapsulation block (25) match the mounting cavity (192) and can fit and fix the junction box (21), the side lead-out head (23) and the bottom lead-out head (24) after being inserted into the mounting cavity (192). The outer surface of the encapsulation block (25) is provided with a recess (251). The recess (251) is provided with two locking blocks (253) installed in the slide groove (252). The two locking blocks (253) are respectively installed at both ends of the slide rod by springs (254). The other ends of the two locking blocks (253) pass through the two sides of the encapsulation block (25) to the outside. The device housing (19) is provided with two locking grooves (193) that correspond to and lock the two locking blocks (253) one by one.

7. A device for collecting and treating initial rainwater pollution from a sewage inspection well in a drainage system according to claim 6, characterized in that: Both locking blocks (253) are provided with unlocking guide arrows, and the bottom of the encapsulation block (25) is also provided with a finger groove (255) to facilitate pulling it outward.

8. A device for collecting and treating initial rainwater pollution from a sewage inspection well in a drainage system according to claim 6, characterized in that: The solar power supply device (3) is embedded in the manhole cover (2). The bottom lead-out head (24) extends through the manhole cover (2) into the manhole body (1). The bottom lead-out head (24) has a threaded structure on the outside and a locking nut (26) is threaded on the bottom lead-out head (24) so ​​that the solar power supply device (3) can be fixed on the manhole cover (2).

9. A device for collecting and treating initial rainwater pollution from a sewage inspection well in a drainage system according to claim 1, characterized in that: The flow guiding device (11) includes a connecting seat (111) and a flow guiding pipe (112) connected to the connecting seat (111). An elastic rubber ring (113) is connected to the top of the connecting seat (111). A mounting slot (30) communicating with the recessed hole (4) is opened on one side of the bottom of the well cover (2). The connecting seat (111) can be inserted into the mounting slot (30) and fixed by the elastic rubber ring (113) and fit tightly with the well cover (2). The flow guiding pipe (112) extends through the fixed plate (5) into the first-stage flow tank (9). The output ends of the flow guiding pipe (112) and the diversion pipe (13) are inclined and extend towards the inner wall of the first-stage flow tank (9). The sensing probe of the flow velocity sensor (12) is embedded inside the flow guiding pipe (112).

10. A device for collecting and treating initial rainwater pollution from a sewage inspection well in a drainage system according to claim 1, characterized in that: The inner wall of the inspection well body (1) is provided with a ring of multiple U-shaped locking blocks (27) arranged at intervals. The fixing plate (5) is provided with a notch (28) for each U-shaped locking block (27) to pass through one by one. The notch (28) is provided with a locking member (29) that cooperates with the U-shaped locking block (27).

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