Float-type rain-sewage separator

Abstract

The utility model relates to the technical field of rain and sewage diversion, and particularly discloses a float-type rain and sewage separator which comprises a tank body, and a partition plate is fixed in the tank body and divides the tank body into a water outlet area and a rainwater distinguishing area. When rainwater flows into the rainwater distinguishing area through the rainwater inlet pipe, the rainwater in the rainwater distinguishing area is gradually accumulated to drive the floating barrel to float, the floating barrel drives the connecting shaft and the sealing piece to rotate when floating, and the sealing piece seals the sewage outlet pipe when rotating. At the moment, water regathered in the rainwater distinguishing area flows into the water outlet area from the overflow groove and is conveyed into the pipeline used for draining the rainwater from the rainwater outlet pipe, and the rainwater at the top of the building is directly conveyed into the water outlet area when conveyed through the sewage inlet pipe due to the fact that the sewage outlet pipe is sealed; and then the rainwater is conveyed from the rainwater outlet pipe into the pipeline for dredging the rainwater, so that the rainwater is guided into the ditch, and the influence on the sewage treatment plant when the rainwater is conveyed from the sewage outlet pipe to the sewage treatment plant is prevented.

Description

Technical Field

[0001] This utility model relates to the field of rainwater and sewage separation technology, and in particular to a float-type rainwater and sewage separator. Background Technology

[0002] Sewage pipelines are used to collect and transport various forms of sewage, such as domestic sewage and industrial wastewater. This sewage is transported through sewage pipelines to sewage treatment plants for treatment, so that the sewage meets the standards before being discharged, thereby avoiding direct discharge of sewage and causing pollution to the environment.

[0003] With increasing emphasis on environmental protection, newly built buildings typically adopt a separate sewer system, where rainwater and sewage are transported through separate pipes. However, older buildings still use a combined sewer system, where rainwater and sewage are transported through the same pipe. In these combined systems, a large amount of rainwater enters the sewage pipes during rainfall. Since rainwater is not considered sewage, it is treated as such, resulting in excessive sewage volume that sewage treatment plants cannot process in time, thus affecting their normal operation. Furthermore, for existing buildings, modifying the wall-mounted risers and laying separate rainwater and sewage pipes is extremely costly, difficult to construct, and difficult to implement. Therefore, a float-type rainwater and sewage separator is proposed. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In view of this, the purpose of this utility model is to propose a float-type rainwater and sewage separator. The technical problem it aims to solve is that in combined sewer systems, a large amount of rainwater enters the sewage pipes when it rains. However, rainwater is not sewage and can only be treated as sewage after entering the sewage pipes, resulting in an excess of sewage volume. The sewage treatment plant cannot handle this in time, thus affecting the normal operation of the sewage treatment plant.

[0006] (II) Technical Solution

[0007] To achieve the above technical objectives, this utility model provides a float-type rainwater and sewage separator:

[0008] It includes a tank body, inside which a partition is fixed, dividing the tank body into an outlet area and a rainwater discrimination area. A rainwater inlet pipe, a sewage inlet pipe, a sewage outlet pipe, and a rainwater outlet pipe are fixed inside the tank body, with the rainwater inlet pipe connected to the rainwater discrimination area. Both the sewage outlet pipe and the rainwater outlet pipe are connected to the outlet area. The rainwater outlet pipe is located at the top of the tank body, and the sewage outlet pipe is located at the bottom of the tank body. The sewage inlet pipe passes through the tank body and the partition and is connected to the outlet area. Two overflow channels are provided at the top of the partition to connect the outlet area and the rainwater discrimination area. A float is installed in the rainwater discrimination area, with ear plates fixed on both sides of the float. A connecting shaft is fixed in both ear plates, and a sealing plate is fixed at one end of the connecting shaft to seal the sewage outlet pipe. An installation assembly is provided inside the partition for installing the float and the sealing plate into the rainwater discrimination area and the outlet area.

[0009] Preferably, both ends of the connecting shaft are provided with limit blocks, and the connecting shaft passes through the limit blocks and is rotatably connected to the limit blocks. Multiple screws pass through both sides of the tank body, and the screws are threadedly connected to the limit blocks.

[0010] Preferably, the mounting assembly includes a U-shaped plate, the partition can be embedded in the U-shaped plate, the partition has a groove in the middle for the connecting shaft to slide, the bottom of the U-shaped plate has a limiting groove, the connecting shaft can be embedded in the limiting groove, and multiple bolts pass through the partition and the U-shaped plate, with a nut threaded to the end of the bolt after it passes through the partition and the U-shaped plate.

[0011] Preferably, the inner wall of the tank is fixed with two baffles to block the sealing sheet, the sewage outlet pipe extends to the outer side of the outlet area and is fitted with an annular sealing ring, the annular sealing ring and the sealing sheet are in contact, and the top of the tank is equipped with a detachable cover plate.

[0012] Preferably, the bottom of the sewage inlet pipe is fixed and connected to a connecting cylinder, the connecting cylinder is located in the rainwater discrimination zone, a conical hole is opened at the end of the connecting cylinder away from the sewage inlet pipe, a baffle is fixed inside the connecting cylinder, a plurality of water passage holes are opened in the baffle, a disc is provided inside the connecting cylinder, and a conical plug that can block the conical hole is fixed on one side of the disc.

[0013] Preferably, a cylindrical rod is fixed to the side of the disc away from the conical plug. The cylindrical rod passes through the baffle and slides within the baffle. An anti-detachment plate is fixed to the end of the cylindrical rod after it passes through the baffle. A spring is sleeved on the outside of the cylindrical rod. One end of the spring abuts against the disc, and the other end of the spring abuts against the baffle.

[0014] Preferably, two guide rods are fixed on the side of the disk away from the conical plug, and the guide rods pass through the baffle and slide within the baffle.

[0015] Preferably, a sleeve is threadedly connected to the outside of the rainwater inlet pipe, and a filter screen is fixed inside the sleeve.

[0016] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0017] 1. During heavy rain, rainwater accumulates in the inspection well and flows through the rainwater inlet pipe into the rainwater identification zone. As rainwater gradually accumulates in the identification zone, it causes the float to float. When the float floats, it drives the connecting shaft to rotate, which in turn drives the sealing plate to rotate. The sealing plate seals the sewage outlet pipe. At this time, the water that accumulates again in the rainwater identification zone flows from the overflow trough into the outlet area and is then transported from the rainwater outlet pipe to the pipe used for rainwater drainage. Meanwhile, the sealing plate seals the sewage outlet pipe. At this time, rainwater from the building roof is directly transported to the outlet area through the sewage inlet pipe and then from the rainwater outlet pipe to the pipe used for rainwater drainage, thus guiding the rainwater into the ditch. This prevents rainwater from being transported from the sewage outlet pipe to the sewage treatment plant, preventing rainwater from flowing into the sewage treatment plant during heavy rain and causing an overload on the plant.

[0018] 2: By setting up the U-shaped plate and the chute, when the float is placed in the rainwater discrimination zone, the connecting shaft is embedded in the chute. At this time, the sealing plate is placed in the water outlet zone. Then, the U-shaped plate is sleeved on the outside of the partition, and the connecting shaft is embedded in the limiting groove. Then, the bolt is passed through the U-shaped plate and the partition, and the nut and bolt are threaded together. Then, the screw is passed through the tank body, so that the screw and the limiting block are threaded together. This completes the installation of the float and the sealing plate. This installation method is relatively convenient and facilitates later maintenance.

[0019] 3: The annular sealing ring increases the sealing between the sewage outlet pipe and the sealing plate. The baffle restricts the rotation range of the sealing plate. When the float rises and drives the connecting shaft and the sealing plate to rotate, the sealing plate and one of the baffles come into contact, and at this time the sealing plate seals the sewage outlet pipe. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 Schematic diagrams of the structure of the float-type rainwater and sewage separator provided for some embodiments of this utility model;

[0022] Figure 2 Schematic diagrams of the internal structure of the tank in some embodiments of this utility model;

[0023] Figure 3 A schematic diagram of the disassembled structure of a float-type rainwater and sewage separator provided for some embodiments of this utility model;

[0024] Figure 4 A schematic diagram of the internal structure of the tank after disassembly in some embodiments of this utility model;

[0025] Figure 5 Cross-sectional structural schematic diagram of a float-type rainwater and sewage separator provided for some embodiments of this utility model;

[0026] Figure 6 A cross-sectional structural schematic diagram of the connecting cylinder provided for some embodiments of this utility model.

[0027] Figure Descriptions: 1. Tank body; 2. Baffle plate; 3. Water outlet area; 4. Rainwater separation area; 5. Rainwater inlet pipe; 6. Sewage inlet pipe; 7. Sewage outlet pipe; 8. Rainwater outlet pipe; 9. Float; 10. Ear plate; 11. Connecting shaft; 12. Sealing plate; 13. Overflow groove; 14. Limiting block; 15. Screw; 16. U-shaped plate; 17. Slide groove; 18. Limiting groove; 19. Bolt; 20. Nut; 21. Stop bar; 22. Annular sealing ring; 23. Connecting cylinder; 24. Baffle plate; 25. Water passage hole; 26. Disc; 27. Conical plug; 28. Conical hole; 29. ​​Cylindrical rod; 30. Anti-detachment plate; 31. Spring; 32. Guide rod; 33. Cover plate; 34. Sleeve; 35. Filter screen. Detailed Implementation

[0028] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0029] Reference Figure 1-6 :

[0030] In one embodiment of this utility model, a float-type rainwater and sewage separator is provided, including a tank 1. A partition 2 is fixed inside the tank 1, dividing the tank 1 into an outlet zone 3 and a rainwater separation zone 4. A rainwater inlet pipe 5, a sewage inlet pipe 6, a sewage outlet pipe 7, and a rainwater outlet pipe 8 are fixed inside the tank 1. The rainwater inlet pipe 5 is connected to the rainwater separation zone 4, and both the sewage outlet pipe 7 and the rainwater outlet pipe 8 are connected to the outlet zone 3. The rainwater outlet pipe 8 is located at the top of the tank 1, and the sewage outlet pipe 7 is located at the bottom of the tank 1. Water pipe 6 passes through tank 1 and partition 2 and is connected to water outlet area 3. Two overflow channels 13 are opened at the top of partition 2 to connect water outlet area 3 and rainwater separation area 4. A float 9 is installed in rainwater separation area 4. Ear plates 10 are fixed on both sides of float 9. A connecting shaft 11 is fixed in both ear plates 10. A sealing plate 12 that can seal sewage outlet pipe 7 is fixed at one end of connecting shaft 11. An installation component for installing float 9 and sealing plate 12 into rainwater separation area 4 and water outlet area 3 is provided in partition 2.

[0031] Both ends of the connecting shaft 11 are provided with limit blocks 14, and the connecting shaft 11 passes through the limit blocks 14 and is rotatably connected to the limit blocks 14. Multiple screws 15 pass through both sides of the tank body 1. The screws 15 are threadedly connected to the limit blocks 14. A sleeve 34 is threadedly connected to the outside of the rainwater inlet pipe 5. A filter screen 35 is fixed inside the sleeve 34.

[0032] It should be noted that inspection wells are usually installed near each building. These wells are typically used to house pipe joints, control valves, and other equipment. In this embodiment, tank 1 is installed inside an inspection well. The sewage inlet pipe 6 is connected to the building's sewage discharge pipe, the sewage outlet pipe 7 is connected to the sewage discharge pipe leading to the sewage treatment plant, and the rainwater outlet pipe 8 is connected to a rainwater drainage pipe. This rainwater drainage pipe directs rainwater into ditches, allowing it to flow into corresponding rivers. On sunny days, the building's domestic sewage is discharged through the sewage inlet pipe 6 into the outlet area 3, and then transported from the sewage outlet pipe 7 to the sewage discharge pipe of the sewage treatment plant for treatment. During heavy rain, rainwater accumulates in the inspection well and flows through the rainwater inlet pipe 5 into the rainwater identification area 4. As rainwater gradually accumulates in the rainwater identification area 4... After accumulating, the float 9 floats up. When the float 9 floats, it drives the connecting shaft 11 to rotate. When the connecting shaft 11 rotates, it drives the sealing plate 12 to rotate. When the sealing plate 12 rotates, it seals the sewage outlet pipe 7. At this time, the water that has accumulated in the rainwater discrimination zone 4 flows from the overflow trough 13 to the outlet zone 3 and is transported from the rainwater outlet pipe 8 to the pipe used to guide rainwater. At this time, the sealing plate 12 seals the sewage outlet pipe 7. At this time, the rainwater on the roof of the building is directly transported to the outlet zone 3 through the sewage inlet pipe 6, and then transported from the rainwater outlet pipe 8 to the pipe used to guide rainwater, so that the rainwater is guided into the ditch. This prevents the rainwater from being transported from the sewage outlet pipe 7 to the sewage treatment plant, and prevents the rainwater from flowing to the sewage treatment plant during rainstorms and causing an overload on the sewage treatment plant. That is, due to receiving a large amount of rainwater, the original sewage treatment plant is unable to handle normal domestic sewage, which in turn affects the normal life of residents.

[0033] In addition, the installation components include a U-shaped plate 16, a partition 2 that can be embedded in the U-shaped plate 16, a groove 17 for sliding the connecting shaft 11 in the middle of the partition 2, a limiting groove 18 at the bottom of the U-shaped plate 16, the connecting shaft 11 that can be embedded in the limiting groove 18, a plurality of bolts 19 passing through the partition 2 and the U-shaped plate 16, and a nut 20 threadedly connected to the end of the bolts 19 after passing through the partition 2 and the U-shaped plate 16, two baffles 21 for blocking the sealing plate 12 fixed on the inner wall of the tank body 1, an annular sealing ring 22 sleeved on the outer side of the sewage outlet pipe 7 extending into the outlet area 3, the annular sealing ring 22 and the sealing plate 12 fitting together, and a detachable cover plate 33 installed on the top of the tank body 1, the cover plate 33 and the tank body 1 can be fixed by snap-fit ​​or by bolts.

[0034] Furthermore, a connecting cylinder 23 is fixed and connected to the bottom of the sewage inlet pipe 6. The connecting cylinder 23 is located within the rainwater discrimination zone 4. A conical hole 28 is provided at the end of the connecting cylinder 23 away from the sewage inlet pipe 6. A baffle 24 is fixed inside the connecting cylinder 23. Multiple water passage holes 25 are provided inside the baffle 24. A disc 26 is provided inside the connecting cylinder 23. A conical plug 27 that can block the conical hole 28 is fixed on one side of the disc 26. A cylindrical rod 29 is fixed on the side of the disc 26 away from the conical plug 27. The cylindrical rod 29 passes through the baffle 24 and slides within the baffle 24. An anti-detachment plate 30 is fixed at the end of the cylindrical rod 29 after it passes through the baffle 24. A spring 31 is sleeved on the outside of the cylindrical rod 29. One end of the spring 31 abuts against the disc 26, and the other end of the spring 31 abuts against the baffle 24. Two guide rods 32 are fixed on the side of the disc 26 away from the conical plug 27. The guide rods 32 pass through the baffle 24 and slide within the baffle 24.

[0035] In use, after a rainstorm, when the sewage inlet pipe 6 is not discharging sewage, the rainwater accumulated in the rainwater discrimination zone 4, under the action of gravity, squeezes the conical plug 27, causing it to move and compressing the spring 31. When the conical plug 27 no longer blocks the conical hole 28, the rainwater in the rainwater discrimination zone 4 flows through the conical hole 28 and the water passage 25 into the sewage inlet pipe 6, and then from the sewage inlet pipe 6 into the outlet zone 3. As the rainwater level in the rainwater discrimination zone 4 gradually drops, the float 9 also drops, thus... The float 9 drives the sealing plate 12 to rotate, so that the sealing plate 12 no longer seals the sewage outlet pipe 7. At this time, rainwater is discharged from the sewage outlet pipe 7. It should be noted that when the rainwater level in the rainwater discrimination zone 4 drops to a certain level, the water in the rainwater discrimination zone 4 will no longer squeeze the conical plug 27. At this time, under the rebound force of the spring 31, the disc 26 and the conical plug 27 move, so that the conical plug 27 blocks the conical hole 28, so that when the subsequent sewage inlet pipe 6 transports sewage, sewage will not enter the rainwater discrimination zone 4.

[0036] It should be understood that after the rainstorm ends, the rainwater in the rainwater identification zone 4 flows from the sewage inlet pipe 6 to the outlet zone 3, and then is discharged from the sewage outlet pipe 7. Since there is relatively little water in the rainwater identification zone 4, the discharge from the sewage outlet pipe 7 will not affect the normal operation of the sewage treatment plant. In addition, during the rainstorm, the sewage used by the building will be transported to the outlet zone 3 through the sewage inlet pipe 6. At this time, rainwater is also transported from the rainwater identification zone 4 and the overflow trough 13 to the outlet zone 3, so that the rainwater and sewage mix in the outlet zone 3 and are finally discharged from the rainwater outlet pipe 8. Due to the large volume of rainwater during the rainstorm, the small amount of domestic sewage in the building has been diluted by a large amount of sewage and will not have an impact on the environment.

[0037] It should be noted that the setting of the baffle 21 restricts the rotation range of the sealing plate 12. When the float 9 rises and drives the connecting shaft 11 and the sealing plate 12 to rotate, the sealing plate 12 abuts against one of the baffles 21. At this time, the sealing plate 12 seals the sewage outlet pipe 7. Moreover, the setting of the annular sealing ring 22 increases the sealing performance between the sewage outlet pipe 7 and the sealing plate 12. In addition, the setting of the U-shaped plate 16 and the sliding groove 17 facilitates the installation of the float 9 and the sealing plate 12 into the tank body 1. When the float 9 is placed in the rainwater discrimination zone 4, the connecting shaft 11 is embedded in the sliding groove 17. At this time, the sealing plate 12 is placed in the water outlet zone 3. Then, the U-shaped plate 16 is fitted onto the outside of the partition 2, and the connecting shaft 11 is embedded in the limiting groove 18. Then, the bolt 19 is passed through the U-shaped plate 16 and the partition 2, and the nut 20 is threadedly connected to the bolt 19. Then, the screw 15 is passed through the tank body 1, so that the screw 15 is threadedly connected to the limiting block 14, thus completing the installation of the float 9 and the sealing plate 12.

[0038] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A float-type rainwater and sewage separator, comprising a tank (1), characterized in that, A partition (2) is fixed inside the tank (1), which divides the tank (1) into a water outlet area (3) and a rainwater discrimination area (4). A rainwater inlet pipe (5), a sewage inlet pipe (6), a sewage outlet pipe (7), and a rainwater outlet pipe (8) are fixed inside the tank (1). The rainwater inlet pipe (5) is connected to the rainwater discrimination area (4). The sewage outlet pipe (7) and the rainwater outlet pipe (8) are both connected to the water outlet area (3). The rainwater outlet pipe (8) is located at the top of the tank (1), and the sewage outlet pipe (7) is located at the bottom of the tank (1). The sewage inlet pipe (6) passes through the tank (1) and the partition (2). The partition (2) is connected to the outlet area (3). Two overflow channels (13) are opened on the top of the partition (2) to connect the outlet area (3) and the rainwater discrimination area (4). A float (9) is provided in the rainwater discrimination area (4). Ear plates (10) are fixed on both sides of the float (9). A connecting shaft (11) is fixed in both ear plates (10). A sealing plate (12) that can seal the sewage outlet pipe (7) is fixed at one end of the connecting shaft (11). An installation component for installing the float (9) and the sealing plate (12) into the rainwater discrimination area (4) and the outlet area (3) is provided in the partition (2).

2. The float-type rainwater and sewage separator according to claim 1, characterized in that, Both ends of the connecting shaft (11) are provided with limit blocks (14), and the connecting shaft (11) passes through the limit blocks (14) and is rotatably connected to the limit blocks (14). Both sides of the tank body (1) are provided with multiple screws (15), and the screws (15) are threadedly connected to the limit blocks (14).

3. The float-type rainwater and sewage separator according to claim 1, characterized in that, The mounting assembly includes a U-shaped plate (16), the partition plate (2) can be embedded in the U-shaped plate (16), the partition plate (2) has a groove (17) in the middle for the connecting shaft (11) to slide, the bottom of the U-shaped plate (16) has a limiting groove (18), the connecting shaft (11) can be embedded in the limiting groove (18), and multiple bolts (19) pass through the partition plate (2) and the U-shaped plate (16), and the end of the bolt (19) after passing through the partition plate (2) and the U-shaped plate (16) is threaded with a nut (20).

4. The float-type rainwater and sewage separator according to claim 1, characterized in that, The inner wall of the tank (1) is fixed with two baffles (21) for blocking the sealing plate (12). The sewage outlet pipe (7) extends to the outer side of the outlet area (3) and is fitted with an annular sealing ring (22). The annular sealing ring (22) and the sealing plate (12) are in contact. The top of the tank (1) is equipped with a detachable cover plate (33).

5. The float-type rainwater and sewage separator according to claim 1, characterized in that, The bottom of the sewage inlet pipe (6) is fixed and connected to a connecting cylinder (23). The connecting cylinder (23) is located in the rainwater discrimination zone (4). A conical hole (28) is opened at the end of the connecting cylinder (23) away from the sewage inlet pipe (6). A baffle (24) is fixed inside the connecting cylinder (23). Multiple water passage holes (25) are opened inside the baffle (24). A disc (26) is provided inside the connecting cylinder (23). A conical plug (27) that can block the conical hole (28) is fixed on one side of the disc (26).

6. The float-type rainwater and sewage separator according to claim 5, characterized in that, A cylindrical rod (29) is fixed on the side of the disc (26) away from the conical plug (27). The cylindrical rod (29) passes through the baffle (24) and slides inside the baffle (24). An anti-detachment plate (30) is fixed to the end of the cylindrical rod (29) after it passes through the baffle (24). A spring (31) is sleeved on the outside of the cylindrical rod (29). One end of the spring (31) abuts against the disc (26), and the other end of the spring (31) abuts against the baffle (24).

7. The float-type rainwater and sewage separator according to claim 6, characterized in that, Two guide rods (32) are fixed on the side of the disc (26) away from the conical plug (27). The guide rods (32) pass through the baffle (24) and slide within the baffle (24).

8. The float-type rainwater and sewage separator according to claim 1, characterized in that, The rainwater inlet pipe (5) is threadedly connected to a sleeve (34) on the outside, and a filter screen (35) is fixed inside the sleeve (34).

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