A rainwater and sewage separation device

Abstract

This utility model relates to the field of drainage equipment technology, specifically a rainwater and sewage separation device. It includes a sewage pipe, a drainage pipe, a sewage buffer tank A, a rainwater buffer tank A, a sewage buffer tank B, and a rainwater buffer tank B. Vertical partitions are installed on the inner sides of both the sewage pipe and the drainage pipe. The inner cavity of the sewage pipe is divided into a first sewage discharge channel and a second sewage discharge channel, and the inner cavity of the drainage pipe is divided into a first drainage channel and a second drainage channel. Sewage buffer tank A and rainwater buffer tank A are located above the sewage pipe and the drainage pipe, respectively; sewage buffer tank B and rainwater buffer tank B are located below the sewage pipe and the drainage pipe, respectively. In this technical solution, the sewage pipe and the drainage pipe can be used to transport sewage and rainwater respectively. When the discharge pressure inside one pipe is high, the other pipe can be used for auxiliary discharge, improving the discharge capacity.

Description

Technical Field

[0001] This utility model relates to the field of drainage equipment technology, and in particular to a rainwater and sewage separation device. Background Technology

[0002] The drainage system uses separate municipal drainage pipes for rainwater and sewage, a system known as rainwater and sewage separation. This means that some sewage from balconies and rooftops in residential areas is discharged into the municipal pipe network through balcony risers and building exterior pipes. On sunny days, this water is mainly domestic sewage such as laundry water. However, on rainy days, the rainwater passing through this drainage pipe is often clean rainwater.

[0003] During heavy rain, the large volume of rainwater discharge may cause a single pipe to be unable to meet the demand, easily leading to water accumulation. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a rainwater and sewage separation device.

[0005] The technical solution of this utility model is a rainwater and sewage separation device, comprising:

[0006] Sewage pipe and drainage pipe; both sewage pipe and drainage pipe are equipped with vertical partitions on their inner sides. The inner cavity of the sewage pipe is divided into a first sewage discharge channel and a second sewage discharge channel, and the inner cavity of the drainage pipe is divided into a first drainage channel and a second drainage channel.

[0007] Both the sewage buffer tank A and the rainwater buffer tank A are equipped with level sensors on their inner sides; the first sewage discharge channel, the second sewage discharge channel, the first drainage channel, and the second drainage channel are respectively connected to the sewage buffer tank A by an upper sewage discharge pipe A, an upper sewage discharge pipe B, an upper sewage discharge branch pipe A, and an upper sewage discharge branch pipe B; the first drainage channel, the second drainage channel, the first sewage discharge channel, and the second sewage discharge channel are respectively connected to the rainwater buffer tank A by an upper drainage pipe A, an upper drainage pipe B, an upper drainage branch pipe A, and an upper drainage branch pipe B;

[0008] Wastewater buffer tank B and rainwater buffer tank B are respectively connected to the first sewage channel, the second sewage channel, the first drainage channel, and the second drainage channel via a lower sewage pipe A, a lower sewage pipe B, a lower sewage branch pipe A, and a lower sewage branch pipe B. The first sewage channel, the second sewage channel, the first drainage channel, and the second drainage channel are respectively connected to the rainwater buffer tank B via a lower drainage branch pipe A, a lower drainage branch pipe B, a lower drainage pipe A, and a lower drainage pipe B. Solenoid valves are installed on the upper sewage pipe A, upper sewage pipe B, upper drainage pipe A, upper drainage pipe B, upper sewage branch pipe A, upper sewage branch pipe B, upper drainage branch pipe A, upper drainage branch pipe B, lower sewage pipe A, lower sewage pipe B, lower drainage pipe A, lower drainage pipe B, lower drainage branch pipe A, lower drainage branch pipe B, lower sewage branch pipe A, and lower sewage branch pipe B.

[0009] Preferably, the sewage buffer tank A and the rainwater buffer tank A are located above the sewage pipe and the drainage pipe, respectively, and the sewage buffer tank A and the rainwater buffer tank A are respectively connected to the sewage inlet pipe and the rainwater inlet pipe; the sewage buffer tank B and the rainwater buffer tank B are located below the sewage pipe and the drainage pipe, respectively.

[0010] Preferably, the bottom inner sides of both the sewage pipe and the drainage pipe are equipped with support plates, and the bottom ends of both support plates are connected with support rods. The support rods on both sides movably pass through the bottom ends of the sewage pipe and the drainage pipe and are respectively connected to the sewage buffer tank B and the rainwater buffer tank B.

[0011] Preferably, coarse-grid filters are installed at the ends of both the sewage inlet pipe and the rainwater inlet pipe.

[0012] Preferably, it also includes a PLC controller, which is electrically connected to the level sensor and the solenoid valve.

[0013] Preferably, the vertical partitions on both sides are arranged radially along the corresponding side pipes.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: the sewage pipe and the drainage pipe in this technical solution can be used to transport sewage and rainwater respectively. When the discharge pressure inside one side of the pipe is large, the other side of the pipe can be used for auxiliary discharge, thereby improving the discharge capacity. Attached Figure Description

[0015] Figure 1 and Figure 2 All of these are schematic diagrams of the structure of this utility model.

[0016] Figure 3 This is a cross-sectional view of the sewage pipe in this utility model.

[0017] Attached reference numerals: 1. Sewage pipe; 2. Drainage pipe; 3. Sewage buffer tank A; 31. Sewage inlet pipe; 4. Rainwater buffer tank A; 41. Rainwater inlet pipe; 51. Upper sewage pipe A; 52. Upper sewage pipe B; 53. Upper drainage pipe A; 54. Upper drainage pipe B; 61. Upper sewage branch pipe A; 62. Upper sewage branch pipe B; 63. Upper drainage branch pipe A; 64. Upper drainage branch pipe B; 71. Lower sewage pipe A; 72. Lower sewage pipe B; 73. Lower drainage pipe A; 74. Lower drainage pipe B; 81. Lower drainage branch pipe A; 82. Lower drainage branch pipe B; 83. Lower sewage branch pipe A; 84. Lower sewage branch pipe B; 9. Solenoid valve; 10. Sewage buffer tank B; 1001. Sewage drainage pipe; 11. Rainwater buffer tank B; 111. Rainwater drainage pipe; 12. Vertical partition; 13. Support plate. Detailed Implementation

[0018] Example 1

[0019] like Figures 1-3 As shown in the figure, the rainwater and sewage separation device proposed in this embodiment includes a sewage pipe 1, a drainage pipe 2, a sewage buffer tank A3, a rainwater buffer tank A4, a sewage buffer tank B10, and a rainwater buffer tank B11.

[0020] Both the sewage pipe 1 and the drainage pipe 2 are equipped with vertical partitions 12 on their inner sides. The vertical partitions 12 on both sides are arranged radially along the corresponding side pipes. The inner cavity of the sewage pipe 1 is divided into a first sewage discharge channel and a second sewage discharge channel. The inner cavity of the drainage pipe 2 is divided into a first drainage channel and a second drainage channel.

[0021] Liquid level sensors are installed inside both the sewage buffer tank A3 and the rainwater buffer tank A4; the first sewage discharge channel, the second sewage discharge channel, the first drainage channel, and the second drainage channel are respectively connected to the sewage buffer tank A3 by an upper sewage discharge pipe A51, an upper sewage discharge pipe B52, an upper sewage discharge branch pipe A61, and an upper sewage discharge branch pipe B62; the first drainage channel, the second drainage channel, the first sewage discharge channel, and the second sewage discharge channel are respectively connected to the rainwater buffer tank A4 by an upper drainage pipe A53, an upper drainage pipe B54, an upper drainage branch pipe A63, and an upper drainage branch pipe B64.

[0022] The first sewage discharge channel, the second sewage discharge channel, the first drainage channel, and the second drainage channel are connected to the sewage buffer tank B10 by lower sewage pipes A71, B72, A83, and B84, respectively. The first sewage discharge channel, the second sewage discharge channel, the first drainage channel, and the second drainage channel are connected to the rainwater buffer tank B11 by lower drainage branch pipes A81, B82, A73, and B74, respectively. Upper sewage pipes A51 and B52 are also connected. Solenoid valves 9 are installed on the upper drain pipe A53, upper drain pipe B54, upper sewage branch pipe A61, upper sewage branch pipe B62, upper drainage branch pipe A63, upper drainage branch pipe B64, lower sewage pipe A71, lower sewage pipe B72, lower drainage pipe A73, lower drainage pipe B74, lower drainage branch pipe A81, lower drainage branch pipe B82, lower sewage branch pipe A83, and lower sewage branch pipe B84. A PLC controller is also provided in this technical solution. The PLC controller is electrically connected to the liquid level sensor and the solenoid valves 9.

[0023] Wastewater buffer tank A3 and rainwater buffer tank A4 are located above sewage pipe 1 and drainage pipe 2, respectively. Wastewater inlet pipe 31 and rainwater inlet pipe 41 are respectively connected to wastewater buffer tank A3 and rainwater inlet pipe A4. Wastewater buffer tank B10 and rainwater buffer tank B11 are located below sewage pipe 1 and drainage pipe 2, respectively. Coarse mesh filters are installed at the ends of sewage inlet pipe 31 and rainwater inlet pipe 41.

[0024] Specifically, in this technical solution, sewage pipe 1 and drainage pipe 2 are used to transport sewage and rainwater, respectively. During rainy weather, rainwater enters the interior of rainwater buffer tank A4 through rainwater inlet pipe 41. In the initial state, the solenoid valves 9 on the upper drainage pipe A53, upper drainage pipe B54, lower drainage pipe A73, and lower drainage pipe B74 are all in the open state, while the upper drainage branch pipe A63, upper drainage branch pipe B64, lower drainage branch pipe A81, and lower drainage branch pipe B82 are all in the closed state. Rainwater flows into the first drainage channel and the second drainage channel through the upper drainage pipe A53 and upper drainage pipe B54, respectively. Then, the rainwater at the bottom of the first drainage channel and the second drainage channel enters the interior of rainwater buffer tank B11 through the lower drainage pipe A73 and lower drainage pipe B74, respectively, and is finally discharged through rainwater buffer tank B11.

[0025] If the liquid level inside the rainwater buffer tank A4 continues to rise and exceeds the set threshold, the liquid level sensor inside the rainwater buffer tank A4 will send a signal to the PLC controller. If the liquid level sensor inside the sewage buffer tank A3 detects no sewage discharge demand, rainwater can be discharged auxiliaryly via the sewage pipe 1, opening the upper drainage branch pipes A63 and B64. At this time, it is necessary to ensure that the lower sewage pipes A71 and B72 are only briefly open, while the lower drainage branch pipes A81 and B82 are closed. The rainwater inside the rainwater buffer tank A4 then flows through the upper drainage branch pipes A63 and B64... Water branch pipe B64 flows into the first and second sewage channels respectively, first flushing the first and second sewage channels. The flushed wastewater is discharged into the sewage buffer tank B10 through the lower sewage pipes A71 and B72. Then, the lower sewage pipes A71 and B72 are closed, and the lower drainage branch pipes A81 and B82 are opened, so that the rainwater in the first and second sewage channels flows into the rainwater buffer tank B11 through the lower drainage branch pipes A81 and B82 respectively, thereby improving the rainwater discharge capacity.

[0026] When the liquid level sensor inside the sewage buffer tank A3 detects sewage entering, only one sewage discharge channel is allowed for rainwater to pass through. If the sewage level inside the sewage buffer tank A3 exceeds the set threshold, rainwater is not allowed to pass through the sewage discharge pipe 1. At this time, only sewage is allowed to pass through the sewage discharge pipe 1.

[0027] When it is not raining, and the sewage discharge volume is large, the drain pipe 2 can be activated in a similar manner to accelerate the sewage discharge. The sewage discharged from the drain pipe 2 will all flow into the sewage buffer tank B10.

[0028] Example 2

[0029] like Figure 3As shown in the figure, the rainwater and sewage separation device proposed in this embodiment, compared with the first embodiment, has support plates 13 installed on the inner bottom of both the sewage pipe 1 and the drainage pipe 2. Support rods are connected to the bottom of both support plates 13. The support rods on both sides movably pass through the bottom of the sewage pipe 1 and the drainage pipe 2 and are respectively connected to the sewage buffer tank B10 and the rainwater buffer tank B11. Sealing rings are installed at the bottom of both the sewage pipe 1 and the drainage pipe 2. The sealing rings allow the corresponding support rods to pass through and can play a sealing role. When water falls from a high place in the pipe, it converts potential energy into kinetic energy. Directly impacting the bottom of the pipe can easily cause damage to the pipe. Therefore, the support plates 13 installed at the bottom of the inner cavity of the pipe can share the impact force of the water flow and extend the service life of the pipe.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A rainwater and sewage separation device, characterized in that, include: Sewage pipe (1) and drainage pipe (2); vertical partitions (12) are provided on the inner side of both sewage pipe (1) and drainage pipe (2). The inner cavity of sewage pipe (1) is divided into a first sewage channel and a second sewage channel, and the inner cavity of drainage pipe (2) is divided into a first drainage channel and a second drainage channel. Both the sewage buffer tank A(3) and the rainwater buffer tank A(4) are equipped with level sensors on their inner sides; the first sewage discharge channel, the second sewage discharge channel, the first drainage channel and the second drainage channel are respectively connected to the sewage buffer tank A(3) by an upper sewage discharge pipe A(51), an upper sewage discharge pipe B(52), an upper sewage discharge branch pipe A(61), and an upper sewage discharge branch pipe B(62); the first drainage channel, the second drainage channel, the first sewage discharge channel and the second sewage discharge channel are respectively connected to the rainwater buffer tank A(4) by an upper drainage pipe A(53), an upper drainage pipe B(54), an upper drainage branch pipe A(63), and an upper drainage branch pipe B(64); Wastewater buffer tank B(10) and rainwater buffer tank B(11) are connected to the first sewage discharge channel, the second sewage discharge channel, the first drainage channel, and the second drainage channel via a lower sewage pipe A(71), a lower sewage pipe B(72), a lower sewage branch pipe A(83), and a lower sewage branch pipe B(84) respectively. The first sewage discharge channel, the second sewage discharge channel, the first drainage channel, and the second drainage channel are connected to the rainwater buffer tank B(11) via a lower drainage branch pipe A(81), a lower drainage branch pipe B(82), a lower drainage pipe A(73), and a lower drainage branch pipe B(84) respectively. Water pipe B (74); upper sewage pipe A (51), upper sewage pipe B (52), upper drainage pipe A (53), upper drainage pipe B (54), upper sewage branch pipe A (61), upper sewage branch pipe B (62), upper drainage branch pipe A (63), upper drainage branch pipe B (64), lower sewage pipe A (71), lower sewage pipe B (72), lower drainage pipe A (73), lower drainage pipe B (74), lower drainage branch pipe A (81), lower drainage branch pipe B (82), lower sewage branch pipe A (83) and lower sewage branch pipe B (84) are all equipped with solenoid valves (9).

2. The rainwater and sewage separation device according to claim 1, characterized in that, Sewage buffer tank A(3) and rainwater buffer tank A(4) are located above sewage pipe (1) and drainage pipe (2) respectively. Sewage inlet pipe (31) and rainwater inlet pipe (41) are respectively connected to sewage buffer tank A(3) and rainwater inlet pipe (41); sewage buffer tank B(10) and rainwater buffer tank B(11) are located below sewage pipe (1) and drainage pipe (2) respectively.

3. A rainwater and sewage separation device according to claim 2, characterized in that, Both the inner bottom of the sewage pipe (1) and the drainage pipe (2) are equipped with support plates (13), and the bottom of both support plates (13) are connected with support rods. The support rods on both sides move through the bottom of the sewage pipe (1) and the drainage pipe (2) respectively and are connected to the sewage buffer tank B (10) and the rainwater buffer tank B (11) respectively.

4. A rainwater and sewage separation device according to claim 1, characterized in that, Both the sewage inlet pipe (31) and the rainwater inlet pipe (41) are equipped with coarse mesh filters at their ends.

5. A rainwater and sewage separation device according to claim 1, characterized in that, It also includes a PLC controller, which is electrically connected to the level sensor and the solenoid valve (9).

6. A rainwater and sewage separation device according to claim 1, characterized in that, Both vertical partitions (12) are installed radially along the corresponding side pipes.

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