Old block rain and sewage confluence tail end treatment structure

Abstract

The utility model discloses an old block rain and sewage confluence tail end treatment structure which comprises a water storage well and a sedimentation well, the sedimentation well is arranged on the downstream of the water storage well, the water storage well is communicated with the sedimentation well through a filter screen, a water inlet used for water inflow is formed in the side face of the water storage well, and a sewage pipe used for water drainage is arranged at the bottom of the water storage well. Drainage pipes for draining water are arranged on the side surfaces of the precipitation wells. According to the rain and sewage confluence tail end treatment structure in the old block, the precipitation well and the drainage pipe are arranged, when the water flow is large, part of water is shunted, the drainage pressure of the sewage pipe is reduced, and meanwhile drainage and maintenance are more convenient due to the fact that a plurality of maintenance openings are formed.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a combined rainwater and sewage terminal treatment structure in old blocks. Background Art

[0002] A combined sewer system refers to a drainage system that mixes domestic sewage, industrial wastewater, and rainwater in the same pipe and drains them away. In the dry season, the combined sewer system mainly transports sewage. When it rains and snow melts, rainwater and snow water are also transported at the same time. When the flow exceeds the treatment capacity of the sewage treatment facilities, some overflow wastewater will be discharged into natural water bodies. Sewage that has not been effectively treated will seriously damage the water environment function and endanger human health. Therefore, it is necessary to separate rainwater and sewage. However, some old urban areas are located in the center of the old city, with high urban construction density, concentrated population, lagging drainage network construction standards, and tight underground space on urban roads. There are no conditions for complete separation of rainwater and sewage. Therefore, some old urban areas still use a combined sewer system, but combined sewerage will seriously affect the water environment. Therefore, this application provides a combined sewer terminal treatment structure for old blocks. By setting up several sedimentation wells, when the water flow is large, part of the water is diverted to reduce the drainage pressure of the sewage pipe, thereby reducing the impact of combined sewerage on the water environment. Utility Model Content

[0003] The purpose of this utility model is to provide a combined rainwater and sewage terminal treatment structure in old blocks, which is equipped with a sedimentation well and a drainage pipe. When the water flow is large, part of the water is diverted to reduce the drainage pressure of the sewage pipe. At the same time, multiple inspection ports are provided to make drainage inspection more convenient.

[0004] To achieve the above-mentioned purpose, the utility model provides a combined rainwater and sewage terminal treatment structure in old blocks, including a water storage well and a sedimentation well. The sedimentation well is arranged downstream of the water storage well, and the water storage well and the sedimentation well are connected through a filter. A water inlet for water intake is arranged on the side of the water storage well, a sewage pipe for drainage is arranged at the bottom of the water storage well, and a drainage pipe for drainage is arranged on the side of the sedimentation well.

[0005] Preferably, a first inspection port for maintenance is provided at the top of the water storage well, and a first ladder is provided on the wall of the water storage well; a second inspection port for maintenance is provided at the top of the sedimentation well, and a second ladder is provided on the wall of the sedimentation well.

[0006] Preferably, a water filter grid is provided inside the water storage well, the water filter grid is provided below the water inlet, and the water filter grid is flush with the height of the filter screen.

[0007] Preferably, a first liquid level sensor and a second liquid level sensor are provided on the wall of the water storage well. The height of the first liquid level sensor is 10-20 cm above the bottom of the filter, and the height of the second liquid level sensor is 5-15 cm below the bottom of the filter.

[0008] Preferably, a first sinking pit is provided at the bottom of the water storage well, and a sewage pipe is provided on the side of the first sinking pit.

[0009] Preferably, a second sinking pit is provided at the bottom of the sedimentation well, a return pipe is provided at the bottom of the second sinking pit, the return pipe is connected to the sewage pipe, and a solenoid valve for regulating flow is provided on the return pipe.

[0010] Preferably, a filter frame is provided on the outside of the filter screen, the top of the filter frame is provided as an inclined surface, the filter screen is connected to the wall of the water storage well through an installation shaft, and the installation shaft is provided on the filter screen frame.

[0011] Preferably, a spring is provided on the inclined surface at the top of the filter frame, and the bottom of the spring is connected to the inclined surface.

[0012] Therefore, the utility model adopts the above-mentioned structure of a combined rainwater and sewage terminal treatment structure in an old block, and sets up a sedimentation well and a drainage pipe. When the water flow is large, part of the water is diverted to reduce the drainage pressure of the sewage pipe. At the same time, multiple inspection ports are set to make drainage inspection more convenient.

[0013] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of an embodiment of a combined rainwater and sewage terminal treatment structure for an old block according to the utility model;

[0015] Figure 2 This is a schematic diagram of a filter screen in an embodiment of a combined rainwater and sewage terminal treatment structure for an old block according to the present invention;

[0016] Figure 3 This is a spring schematic diagram of an embodiment of the utility model of a combined rainwater and sewage terminal treatment structure in old blocks.

[0017] Reference numerals

[0018] 1. Water storage well; 2. Sedimentation well; 3. First inspection port; 4. First ladder; 5. Second inspection port; 6. Second ladder; 7. First sinking pit; 8. Second sinking pit; 9. Water inlet; 10. Drain pipe; 11. Sewage pipe; 12. Return pipe; 13. First liquid level sensor; 14. Second liquid level sensor; 15. Water filter screen; 16. Filter screen; 17. Solenoid valve; 18. Inclined surface; 19. Mounting shaft; 20. Filter screen frame; 21. Spring. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below through the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] Example

[0022] like Figure 1 As shown, a combined sewer terminal treatment structure for an older neighborhood includes a water storage well 1 and a sedimentation well 2. Sedimentation well 2 is located downstream of water storage well 1, and the two wells are connected via a filter screen 16. A water inlet 9 is provided on the side of water storage well 1 for water intake, a sewage pipe 11 is provided at the bottom of water storage well 1 for drainage, and a drain pipe 10 is provided on the side of sedimentation well 2 for drainage. Filter screen 16 is pivotally mounted on the wall of water storage well 1.

[0023] The top of the water storage well 1 is provided with a first inspection port 3 for maintenance, and the wall of the water storage well 1 is provided with a first ladder 4. The top of the sedimentation well 2 is provided with a second inspection port 5 for maintenance, and the wall of the sedimentation well 2 is provided with a second ladder 6. Maintenance personnel can inspect the water storage well 1 through the first inspection port 3 and inspect the sedimentation well 2 through the second inspection port 5. In addition, if the first inspection port 3 or the second inspection port 5 is damaged, maintenance personnel can open the filter 16 and inspect the water storage well 1 and the sedimentation well 2 at the same time, making maintenance more convenient.

[0024] like Figure 1 As shown, a water filter grid 15 is provided inside the water storage well 1. The water filter grid 15 is provided below the water inlet 9 and is flush with the height of the filter screen 16. The water filter grid 15 can filter some impurities in the water and allow the sewage to flow out of the sewage pipe 11 when the water flow is small.

[0025] A first sinking pit 7 is provided at the bottom of the water storage well 1, and a sewage pipe 11 is provided on the side of the first sinking pit 7. Because some soil cannot be intercepted by the water filter grid 15, when sewage carrying soil flows through the first sinking pit 7, the sinking first sinking pit 7 causes some of the soil to settle, reducing the risk of clogging the sewage pipe 11.

[0026] When the water flow is small, sewage enters the water storage well 1 from the water inlet 9 , is filtered by the filter water grid 15 and settles through the soil in the first sinking pit 7 , and finally flows out through the sewage pipe 11 .

[0027] like Figure 1 As shown, a sedimentation well 2 is located downstream of the water storage well 1, and the two are connected via a filter screen 16. A second sinkhole 8 is located at the bottom of the sedimentation well 2. A return pipe 12 is located at the bottom of the second sinkhole 8. This return pipe 12 is connected to a sewage pipe 11 and is equipped with a solenoid valve 17 for flow regulation. The filter screen 16 does not completely filter the sewage, and some small impurities may be deposited in the second sinkhole 8. The sewage at the bottom of the second sinkhole 8 flows through the return pipe 12 and is discharged into the sewage pipe 11.

[0028] like Figure 2 As shown, the filter screen 16 is provided with a filter screen frame 20 on the outside, and the top of the filter screen frame 20 is provided with an inclined surface 18. The filter screen 16 is connected to the wall of the water storage well 1 through a mounting shaft 19, and the mounting shaft 19 is provided on the filter screen frame 20. The filter screen 16 is rotatably connected to the wall of the water storage well 1 through the mounting shaft 19. Figure 3 As shown, a spring 21 is provided on the inclined surface 18 at the top of the filter screen 16 frame 20, and the bottom of the spring 21 is connected to the inclined surface 18. Since the top of the filter screen 16 frame 20 is set as the inclined surface 18 and the spring 21 is provided on the inclined surface 18, the filter screen 16 can only rotate toward the inside of the water storage well 1 when it is stationary.

[0029] A first liquid level sensor 13 and a second liquid level sensor 14 are provided on the wall of the water storage well 1. The first liquid level sensor 13 is located 10-20 cm above the bottom of the filter 16, and the second liquid level sensor 14 is located 5-15 cm below the bottom of the filter 16. The first and second liquid level sensors 13, 14 monitor the water level and are connected to a solenoid valve 17. The connection method can be selected from existing connection methods according to needs.

[0030] When the first liquid level sensor 13 and the second liquid level sensor 14 detect that the water level reaches the position of the first liquid level sensor 13 , the solenoid valve 17 will be opened to connect the return pipe 12 with the sewage pipe 11 .

[0031] When the water flow is large, sewage enters the water storage well 1 from the water inlet 9. After a period of time, the water level exceeds the height of the first liquid level sensor 13, the solenoid valve 17 opens, and the sewage from the ultra-filtered water grid 15 impacts the filter screen 16, causing the filter screen 16 to close. After being filtered by the filter screen 16, the sewage enters the sedimentation well 2. After the sewage enters the sedimentation well 2, the original sewage is diverted, which reduces the drainage pressure of the sewage pipe 11 and speeds up the drainage speed.

[0032] Therefore, the utility model adopts a combined rainwater and sewage terminal treatment structure of the above-mentioned structure in an old block, and sets a sedimentation well 2 and a drainage pipe 10. When the water flow is large, part of the water is diverted to reduce the drainage pressure of the sewage pipe 11. At the same time, multiple inspection ports are set to make drainage inspection more convenient.

[0033] In addition, construction workers can set up multiple sedimentation wells 2 for diversion according to needs, such as in areas with heavy rainfall, to reduce the drainage pressure of the sewage pipe 11.

[0034] Therefore, the utility model adopts the above-mentioned structure of a combined rainwater and sewage terminal treatment structure in an old block, and sets up a sedimentation well and a drainage pipe. When the water flow is large, part of the water is diverted to reduce the drainage pressure of the sewage pipe. At the same time, multiple inspection ports are set to make drainage inspection more convenient.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A combined rainwater and sewage terminal treatment structure in an old block, characterized by: It includes a water storage well and a sedimentation well. The sedimentation well is arranged downstream of the water storage well. The water storage well and the sedimentation well are connected through a filter. A water inlet for water intake is arranged on the side of the water storage well. A sewage pipe for drainage is arranged at the bottom of the water storage well. A drainage pipe for drainage is arranged on the side of the sedimentation well.

2. The combined rainwater and sewage terminal treatment structure for old blocks according to claim 1 is characterized by: A first inspection port for maintenance is provided on the top of the water storage well, and a first ladder is provided on the wall of the water storage well; a second inspection port for maintenance is provided on the top of the sedimentation well, and a second ladder is provided on the wall of the sedimentation well.

3. The combined rainwater and sewage terminal treatment structure for old blocks according to claim 1 is characterized by: A water filter grid is provided inside the water storage well. The water filter grid is provided below the water inlet and is flush with the height of the filter screen.

4. The combined rainwater and sewage terminal treatment structure for old blocks according to claim 1 is characterized by: A first liquid level sensor and a second liquid level sensor are provided on the wall of the water storage well. The height of the first liquid level sensor is 10-20 cm above the bottom of the filter, and the height of the second liquid level sensor is 5-15 cm below the bottom of the filter.

5. The combined rainwater and sewage terminal treatment structure for old blocks according to claim 1 is characterized by: A first sinking pit is provided at the bottom of the water storage well, and a sewage pipe is provided on the side of the first sinking pit.

6. The combined rainwater and sewage terminal treatment structure for old blocks according to claim 1 is characterized by: A second sinking pit is provided at the bottom of the sedimentation well, a return pipe is provided at the bottom of the second sinking pit, the return pipe is connected with the sewage pipe, and a solenoid valve for regulating flow is provided on the return pipe.

7. The combined rainwater and sewage terminal treatment structure for old blocks according to claim 1 is characterized by: A filter frame is provided on the outside of the filter screen, the top of the filter frame is provided as an inclined surface, the filter screen is connected to the wall of the water storage well through an installation shaft, and the installation shaft is provided on the filter screen frame.

8. The combined rainwater and sewage terminal treatment structure for old blocks according to claim 7 is characterized by: A spring is provided on the inclined surface at the top of the filter frame, and the bottom of the spring is connected to the inclined surface.

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