Initial rain sewage efficient removal device

Abstract

The invention discloses an efficient initial rain sewage removal device, and relates to the technical field of rain sewage treatment, the efficient initial rain sewage removal device comprises a drainage pipe and a sewage discharge pipe, the upper end of the sewage discharge pipe is communicated with the drainage pipe, a rotating groove is formed in the drainage pipe, a grating is obliquely arranged in the drainage pipe, and the grating is slidably arranged in the rotating groove; and a dirt removing structure is jointly mounted between the grating and the rotating groove. The device has the advantages that high-concentration suspended solids in initial rainwater sewage can be efficiently intercepted, impurities in the rainwater sewage are automatically separated according to the borne load through grid filtration, untreated high-pollution rainwater is prevented from being directly discharged into a river, meanwhile, initial dredging and self-flushing of the rainwater sewage are achieved through the dead weight of later rainwater, and the rainwater treatment efficiency is improved. And the traditional mode of manual regular cleaning is replaced, the workload of operation and maintenance personnel is reduced, the energy consumption and cost of mechanical dredging are avoided, the device keeps low maintenance investment in long-term operation, and meanwhile the risk of secondary pollution in the dredging process is avoided.

Description

Technical Field

[0001] This invention relates to the field of rainwater and sewage treatment technology, and in particular to a highly efficient device for initial rainwater and sewage removal. Background Technology

[0002] The high-efficiency initial rainwater and sewage removal device is mainly used to intercept and treat the heavily polluted rainwater at the beginning of rainfall. It removes suspended solids, grease, chemical pollutants and other pollutants through filtration, sedimentation and other methods, and diverts the highly polluted initial rainwater to the sewage pipe network (to avoid direct discharge into rivers). The cleaner rainwater in the later stage of rainfall can be directly discharged or reused. At the same time, some devices can use the later rainwater to achieve self-cleaning, maintain long-term treatment efficiency, and ultimately reduce the risk of initial rainwater pollution to water bodies.

[0003] Existing high-efficiency initial rainwater and sewage removal devices have several shortcomings in practical applications: First, the filters are prone to clogging, and after long-term operation, a large amount of mud and impurities accumulate on the surface, leading to a significant decrease in treatment efficiency. Second, their self-cleaning ability is insufficient, requiring external cleaning water for backwashing, which not only increases operation and maintenance costs but also results in incomplete backwashing and a gradual decrease in the amount of water treated each year. Third, their complex structure relies heavily on electronic control components (such as cylinders and sensors), leading to frequent malfunctions in humid, impurity-laden rainwater and sewage environments. Fourth, they cannot adaptively adjust the treatment mode according to rainfall intensity, exhibiting poor flexibility when facing high initial pollution concentrations and subsequent clean rainwater. Fifth, filter replacement and subsequent operation and maintenance costs are high, and some devices have limited functionality, making it difficult to adapt to the rainwater and sewage treatment needs of different scenarios. Therefore, a more reliable and cost-effective technical solution is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the background art and to propose an efficient initial rainwater and sewage removal device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An efficient initial rainwater and sewage removal device includes a drainage pipe and a sewage pipe, with the upper end of the sewage pipe connected to the drainage pipe. A rotating groove is provided inside the drainage pipe, and a grid is inclinedly installed inside the drainage pipe, with the grid slidably disposed within the rotating groove. A sewage removal structure is installed between the grid and the rotating groove. The sewage removal structure performs unified, self-triggered discharge treatment based on the impurities accumulated inside the initial rainwater. An anti-clogging structure is installed in the sewage pipe in conjunction with the sewage removal structure. The anti-clogging structure automatically activates based on rainfall to reciprocate and unclog any blockages in the sewage pipe.

[0006] In the above-mentioned efficient initial rainwater and sewage removal device, a squeezing ring is fixedly installed on the outer side of the grid, the lower surface of the squeezing ring is flush with the grid, and the squeezing ring is slidably disposed in the rotating groove.

[0007] In the aforementioned efficient initial rainwater and sewage removal device, multiple springs are fixedly installed on one side of the bottom of the extrusion ring, and a slot is provided on the other side of the bottom of the extrusion ring. Two semi-rings are slidably arranged in the slot. Multiple springs are fixedly installed on the upper surface of one of the semi-rings, and multiple telescopic rods are fixedly installed on the upper surfaces of both semi-rings. The upper ends of the multiple telescopic rods on one semi-ring are fixed to the extrusion ring, and the upper ends of the multiple telescopic rods on the other semi-ring are fixedly installed with a fixing plate. Each telescopic rod is located within the corresponding spring and spring.

[0008] In the above-mentioned efficient initial rainwater and sewage removal device, guide grooves are provided on the lower surfaces of the two semi-rings, and rotating shafts are rotatably installed in the two rotating grooves. Guide rods are fixedly installed at the upper ends of the two rotating shafts, and the guide rods slide within the guide grooves for use.

[0009] In the above-mentioned efficient initial rainwater and sewage removal device, the drainage pipe is provided with an installation groove, a sliding groove and a connecting groove, and the installation groove, sliding groove and connecting groove are all connected to the rotating groove, and the sliding groove is connected to the upper port of the sewage pipe.

[0010] In the aforementioned efficient initial rainwater and sewage removal device, a gear three is fixedly installed at the lower end of one of the rotating shafts, and a gear two is rotatably installed in the mounting groove, with the gear three meshing with the gear two.

[0011] In the above-mentioned efficient initial rainwater and sewage removal device, the sewage removal structure includes a threaded rod fixedly installed on the upper surface of the gear two, and a baffle is threadedly installed at the upper end of the threaded rod, and the baffle is slidably disposed in the groove.

[0012] In the aforementioned efficient initial rainwater and sewage removal device, a gear four is fixedly installed at the lower end of another rotating shaft, and the length of the rotating shaft is greater than the length of the remaining rotating shaft.

[0013] In the above-mentioned efficient initial rainwater and sewage removal device, a toothed ring is rotatably installed at the bottom of the rotating trough, and the toothed ring meshes with a gear. An incomplete toothed ring is fixedly installed on the lower surface of the toothed ring, and the toothed ring and the incomplete toothed ring are fixedly connected.

[0014] In the aforementioned efficient initial rainwater and sewage removal device, the anti-clogging structure includes a gear rotatably installed in a connecting groove, and the gear meshes with an incomplete gear ring. A disc is fixedly installed on the gear, and a lever is fixedly installed on the disc, with the lever located inside the sewage pipe.

[0015] Compared with existing technologies, the advantages of this invention are as follows: This device can efficiently intercept high concentrations of suspended solids in the initial rainwater and sewage. Through grid filtration, it can self-separate impurities inside the rainwater and sewage according to the load, avoiding the direct discharge of untreated, highly polluted rainwater into the river. At the same time, it uses the weight of the subsequent rainwater to achieve initial dredging and self-flushing of rainwater and sewage, replacing the traditional mode of manual periodic cleaning. This not only reduces the workload of operation and maintenance personnel, but also avoids the energy consumption and cost of mechanical dredging, allowing the device to maintain low maintenance investment during long-term operation, while avoiding the risk of secondary pollution during the dredging process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an efficient initial rainwater and sewage removal device proposed in this invention; Figure 2 In this invention Figure 1 Top view; Figure 3 In this invention Figure 2 Cross-sectional view of the structure along the AA direction; Figure 4 This is a schematic diagram of the internal structure of the drain pipe in this invention; Figure 5 This is a schematic diagram of the structure of the guide rod and guide groove in this invention; Figure 6 This is a schematic diagram of the structure of the transfer groove and slide in this invention.

[0017] In the diagram: 1. Grille; 2. Drainage pipe; 3. Sewage pipe; 4. Extrusion ring; 5. Lever; 6. Gear 1; 7. Incomplete gear ring; 8. Gear ring; 9. Baffle; 10. Slot; 11. Spring 1; 12. Spring 2; 13. Threaded rod; 14. Gear 2; 15. Gear 3; 16. Shaft; 17. Guide rod; 18. Guide groove; 19. Gear 4; 20. Half ring; 21. Fixed plate; 22. Rotary groove; 23. Sliding groove; 24. Connecting groove; 25. Mounting groove. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-5A high-efficiency device for initial rainwater and sewage removal includes a drain pipe 2 and a sewage pipe 3, with the upper end of the sewage pipe 3 connected to the drain pipe 2. The drain pipe 2 is vertical, while the sewage pipe 3 is curved. A circumferential groove 22 is formed around the inner side of the drain pipe 2, but the groove 22 is not connected to the interior of the drain pipe 2. A grid 1 is inclinedly installed inside the drain pipe 2. (Initial rainwater flow velocity is usually fast, especially at the beginning of rainfall when surface runoff has strong scouring force. A horizontally installed grid 1 is easily impacted by the water flow, causing lightweight impurities (such as plastic film and small dead branches) to pass through the grid.) The gaps in the grid cause filtration to pass through; the vertically set grid 1 is prone to impurities accumulating on the front of the grid 1, quickly clogging the gaps, and subsequent rainwater-carried impurities cannot be effectively intercepted. When the initial rainwater flows into the drain pipe 2, the inclined grid 1 can gather impurities to the lowest point of the grid 1. The intercepted impurities will slide down the inclined surface of the grid 1 due to their own gravity. At the same time, when the water flows along the inclined surface, it will generate a scouring force on the surface of the grid 1, helping to push the impurities to the lower end of the grid 1, preventing impurities from staying on the surface of the grid 1 for a long time, compacting and forming stubborn blockages. In addition, the grid 1 is slidably set in the rotating groove 22, and a compression ring 4 is fixedly installed on the outer side of the grid 1. The lower surface of the compression ring 4 is flush with the grid 1 and is slidably set in the rotating groove 22. As impurities gradually accumulate on the grid 1, the grid 1 will drive the compression ring 4 to gradually move downward.

[0020] Multiple springs 12 are fixedly installed on one side of the bottom of the compression ring 4. A slot 10 is provided on the other side of the bottom of the compression ring 4. Two semi-rings 20 are slidably arranged in the slot 22. Multiple springs 11 are fixedly installed on the upper surface of one semi-ring 20. Multiple telescopic rods are fixedly installed on the upper surfaces of both semi-rings 20. The upper ends of the multiple telescopic rods on one semi-ring 20 are fixed to the compression ring 4. The upper ends of the multiple telescopic rods on the other semi-ring 20 are fixedly installed with a fixing plate 21. The diameter of the fixing plate 21 is smaller than the cross-sectional width of the slot 10, so that the fixing plate 21 can slide within the slot 10 for use. Each telescopic rod is located within the corresponding spring 11 and spring 12. During the downward movement of the compression ring 4, multiple springs 12 on one side will be compressed, while multiple springs 11 located in the slot 10 will not be compressed. Based on the weight analysis of the impurities, the depth of the slot 10 is designed accordingly so that it can drive one of the rotating shafts 16 to rotate when impurities accumulate, but will not compress spring 11. When the water in the drain pipe 2 is full, spring 11 is compressed. In the uncompressed state, the elastic potential energy of spring 11 is greater than that of spring 12. The lower surfaces of the two semi-rings 20 are provided with guide grooves 18, which are spiral in shape. Rotating shafts 16 are rotatably installed in the two rotating grooves 22. Guide rods 17 are fixedly installed at the upper ends of the two rotating shafts 16, and the guide rods 17 slide in the guide grooves 18. One end of the guide rod 17 is arc-shaped, which can reduce the friction between the guide rod 17 and the guide groove 18. When the semi-ring 20 moves downward, the guide rod 17 can move along its surface due to the setting of the guide groove 18. At this time, the guide rod 17 drives the rotating shaft 16 to rotate.

[0021] Reference Figures 1-6 The drain pipe 2 has an installation groove 25, a sliding groove 23, and a connecting groove 24, all of which are connected to the rotating groove 22. The sliding groove 23 is connected to the upper end of the drain pipe 3. A gear 3 15 is fixedly installed at the lower end of a rotating shaft 16. A gear 2 14 is rotatably installed in the installation groove 25, and the gear 3 15 meshes with the gear 2 14. When the spring 2 12 is compressed, the half-ring 20 connected to it moves downward, causing the rotating shaft 16 to rotate. The rotation of the rotating shaft 16 causes the gear 3 15 to rotate, which in turn causes the gear 2 14 to rotate. The rotation of the gear 2 14 causes the threaded rod 13 to rotate, which in turn causes the baffle 9 to move downward, allowing impurities on the screen 1 to be discharged through the drain pipe 3.

[0022] A dirt removal structure is installed between the grille 1 and the rotating trough 22. The dirt removal structure performs self-sensing processing based on the weight of impurities inside the rainwater at the beginning. When the impurities on the grille 1 accumulate to a certain extent (based on the analysis of the impurity content at that point, the spring force required for spring 12 is set), it can centrally remove the impurities brought in at the beginning of the rainwater (the impurity content is high at the beginning of the rainwater). The dirt removal structure includes a threaded rod 13 fixedly installed on the upper surface of gear 14. A baffle 9 is threadedly installed at the upper end of the threaded rod 13, and the baffle 9 is slidably set in the sliding groove 23. A gear 19 is fixedly installed at the lower end of another rotating shaft 16. The length of the rotating shaft 16 with gear 19 is greater than the length of the other rotating shaft 16. A toothed ring 8 is rotatably installed at the bottom end of the rotating trough 22, and the toothed ring 8 meshes with gear 19. An incomplete toothed ring 7 is fixedly installed on the lower surface of the toothed ring 8, and the toothed ring 8 and the incomplete toothed ring 7 are fixedly connected. When spring 11 is compressed, the rotating shaft 16, on which gear 4 19 is installed, also rotates under the cooperation of guide groove 18 and guide rod 17. This ensures that, with sufficient rainfall, the rotating shaft 16 drives gear 4 19 to rotate, which in turn drives the gear ring 8 to rotate. When impurities in the screen 1 decrease later, the screen 1 moves upward under the elastic force of spring 2 12. Spring 2 12 then drives the compression ring 4 upward. Under the action of guide rod 17 and guide groove 18, the baffle 9 moves upward back, ensuring the seal of the slide 23 and ensuring stable water flow at the screen 1. When the water volume increases later, the baffle 9 remains sealed.

[0023] An anti-clogging structure is installed between the sewage pipe 3 and the sewage removal structure. Depending on the amount of rainfall, the anti-clogging structure will automatically start to clear the blockage caused by the initial rainwater in the sewage pipe 3 when the amount of rainwater increases. The anti-clogging structure includes a gear 6 that is rotatably installed in the connecting groove 24 and meshes with the incomplete gear ring 7. A disc is fixedly installed on the gear 6 and a lever 5 is fixedly installed on the disc. The lever 5 is located inside the sewage pipe 3. When the gear ring 8 rotates, it drives the incomplete gear ring 7 to rotate. The rotation of the incomplete gear ring 7 intermittently drives the gear 6 to rotate (the number of teeth in the figure is for illustrative purposes only). The intermittent rotation of the gear 6 drives the lever 5 to rotate intermittently via the disc. The intermittent rotation of the lever 5 addresses the potential blockage caused by impurities in the drain pipe 3 during the initial stage of rainwater and sewage. The intermittent rotation of the lever 5 clears the blockage in the drain pipe 3 in both directions, breaking the adhesion between impurities and the drain pipe 3 and preventing the directional accumulation of impurities. This avoids the formation of stubborn deposits due to continuous pressure during unidirectional rotation. The vibration effect of the shaking also helps to remove impurities from the drain pipe 3, restoring the filtration channel to its unobstructed state. If a flushing function is required, the disc can be set as a semi-disc (half of the disc). Water holes are connected in both the drain pipe 3 and the drain pipe 2. When the incomplete gear ring 7 rotates, it drives the semi-disc to rotate intermittently, introducing water from the drain pipe 2 into the drain pipe 3 for backwashing, effectively preventing blockage.

[0024] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0025] The specific operation steps of this invention are as follows: When the initial rainwater flows into the drain pipe 2, the inclined grid 1 can gather impurities to the lowest point of the grid 1. The trapped impurities will slide down the inclined surface of the grid 1 due to their own gravity. At the same time, when the water flows along the inclined surface, it will generate a scouring force on the surface of the grid 1, which will help push the impurities to the lower end of the grid 1, thus preventing the impurities from staying on the surface of the grid 1 for a long time, compacting and forming stubborn blockages. As impurities gradually accumulate on the screen 1, the screen 1 will cause the compression ring 4 to move downwards. During the downward movement of the compression ring 4, it will compress multiple springs 12 on one side. When the springs 12 are compressed, the half-ring 20 connected to them moves downwards, causing the rotating shaft 16 to rotate. The rotating shaft 16 rotates, causing the gear 15 to rotate. The gear 15 rotates, causing the gear 14 to rotate. The gear 14 rotates, causing the threaded rod 13 to rotate. The threaded rod 13 rotates, causing the baffle 9 to move downwards, so that the impurities on the screen 1 are discharged through the drain pipe 3. The multiple springs 11 located in the slot 10 will not be compressed, so that the inside of the drain pipe 2 can drive the rotating shaft 16 installed on the gear 15 to rotate when impurities accumulate.

[0026] When the amount of impurities in the grid 1 decreases, the grid 1 will move upward under the elastic force of the second spring 12. At this time, the second spring 12 drives the compression ring 4 to move upward. Then, under the action of the guide rod 17 and the guide groove 18, the baffle 9 moves upward back, ensuring the sealing of the slide 23 and ensuring the stable flow of water at the grid 1. When the amount of water increases later, the baffle 9 still remains sealed (because the rainwater in the early stage has washed the impurities into the drain pipe 2, the amount of impurities generated later is less). When the water in the drain pipe 2 is full, the first spring 11 is compressed. When the first spring 11 is compressed, the rotating shaft 16, which is equipped with the fourth gear 19, rotates under the cooperation of the guide groove 18 and the guide rod 17. This ensures that when the amount of rainwater is sufficient, the rotating shaft 16 drives the fourth gear 19. 9 rotates, gear 4 rotates, driving gear ring 8 to rotate. When gear ring 8 rotates, it drives incomplete gear ring 7 to rotate. Incomplete gear ring 7 rotates intermittently, driving gear 6 to rotate. Gear 6 rotates intermittently, driving semi-disc to rotate intermittently. The intermittent rotation of semi-disc introduces water from drain pipe 2 into sewage pipe 3 for backwashing. At the same time, the intermittent rotation of semi-disc drives lever 5 to rotate intermittently. Lever 5 rotates intermittently to clear any blockages that may exist in the sewage pipe 3 during the initial rain and sewage stages. The back-and-forth rotation can break the adhesion between impurities and sewage pipe 3, breaking the directional accumulation of impurities and preventing the formation of stubborn scale due to continuous pressure during unidirectional rotation. The vibration effect of the shaking can promote the removal of impurities from sewage pipe 3, restoring the filtration channel to unobstructed flow. Rainwater in the later stages (15-30 minutes after rainfall) has the characteristics of low pollution concentration and stable and sufficient water volume. Using it as a flushing water source in conjunction with dredging can achieve the additional advantages of using rainwater to treat pollution and saving energy and reducing consumption, and prevent impurities from redepositing or getting stuck in dead corners after flushing.

[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency initial rainwater and sewage removal device, comprising a drain pipe (2) and a sewage pipe (3), wherein the upper end of the sewage pipe (3) is connected to the drain pipe (2), characterized in that, A rotating groove (22) is provided inside the drainage pipe (2). A grid (1) is inclinedly installed inside the drainage pipe (2), and the grid (1) is slidably installed in the rotating groove (22). A dirt removal structure is installed between the grid (1) and the rotating groove (22). The dirt removal structure performs unified self-triggered discharge treatment based on the impurities accumulated inside the rainwater in the early stage. An anti-blocking structure is installed in the sewage pipe (3) in cooperation with the dirt removal structure. The anti-blocking structure automatically starts according to the rainfall to perform reciprocating dredging of the blockage in the sewage pipe (3).

2. The high-efficiency initial rainwater and sewage removal device according to claim 1, characterized in that, An extrusion ring (4) is fixedly installed on the outer side of the grid (1). The lower surface of the extrusion ring (4) is flush with the grid and the extrusion ring (4) is slidably disposed in the rotating groove (22).

3. The high-efficiency initial rainwater and sewage removal device according to claim 2, characterized in that, Multiple springs (12) are fixedly installed on one side of the bottom of the extrusion ring (4). A slot (10) is provided on the other side of the bottom of the extrusion ring (4). Two half-rings (20) are slidably arranged in the rotating groove (22). Multiple springs (11) are fixedly installed on the upper surface of one of the half-rings (20). Multiple telescopic rods are fixedly installed on the upper surfaces of both half-rings (20). The upper ends of the multiple telescopic rods on one half-ring (20) are fixed to the extrusion ring (4). The upper ends of the multiple telescopic rods on the other half-ring (20) are fixedly installed with a fixing plate (21). Each telescopic rod is located in the corresponding spring (11) and spring (12).

4. The high-efficiency initial rainwater and sewage removal device according to claim 3, characterized in that, The lower surfaces of the two semi-rings (20) are provided with guide grooves (18), and the two rotating grooves (22) are rotatably installed with rotating shafts (16). The upper ends of the two rotating shafts (16) are fixedly installed with guide rods (17), and the guide rods (17) slide in the guide grooves (18) for use.

5. The high-efficiency initial rainwater and sewage removal device according to claim 4, characterized in that, The drain pipe (2) is provided with an installation groove (25), a sliding groove (23) and a connecting groove (24), and the installation groove (25), the sliding groove (23) and the connecting groove (24) are all connected to the rotating groove (22). The sliding groove (23) is connected to the upper port of the sewage pipe (3).

6. The high-efficiency initial rainwater and sewage removal device according to claim 5, characterized in that, One of the shafts (16) has a gear three (15) fixedly installed at its lower end, and a gear two (14) is rotatably installed in the mounting groove (25), and the gear three (15) meshes with the gear two (14).

7. The high-efficiency initial rainwater and sewage removal device according to claim 6, characterized in that, The cleaning structure includes a threaded rod (13) fixedly installed on the upper surface of gear two (14), and a baffle (9) is threadedly installed at the upper end of the threaded rod (13), and the baffle (9) is slidably disposed in the slide groove (23).

8. The high-efficiency initial rainwater and sewage removal device according to claim 4, characterized in that, The lower end of another shaft (16) is fixedly mounted with a gear four (19), and the length of the shaft (16) is greater than the length of the remaining shaft (16).

9. The high-efficiency initial rainwater and sewage removal device according to claim 8, characterized in that, A toothed ring (8) is rotatably mounted at the bottom of the rotating groove (22), and the toothed ring (8) meshes with the gear four (19). An incomplete toothed ring (7) is fixedly mounted on the lower surface of the toothed ring (8), and the toothed ring (8) and the incomplete toothed ring (7) are fixedly connected.

10. The high-efficiency initial rainwater and sewage removal device according to claim 9, characterized in that, The anti-clogging structure includes a gear (6) rotatably installed in the connecting groove (24), and the gear (6) meshes with the incomplete gear ring (7). A disc is fixedly installed on the gear (6), and a lever (5) is fixedly installed on the disc, and the lever (5) is located inside the drain pipe (3).

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