Anti-backflow intercepting well capable of adjusting intercepting multiple

Abstract

The utility model relates to an anti-backflow intercepting well capable of adjusting intercepting multiple, the inside of the intercepting well is divided into a confluence area and an intercepting area which are adjacent to each other, a water inlet pipe and a water outlet pipe are respectively arranged on two opposite side walls of the confluence area in a communicated mode, and the confluence area is communicated with the intercepting area through a communicating pipe. A flow groove is formed between one end of the water inlet pipe in the confluence area and one end of the communicating pipe, a sewage intercepting pipe is arranged on the side wall of the side, away from the communicating pipe, of the intercepting area in a communicating mode, a gate valve capable of adjusting the intercepting multiple is arranged on the part, located in the intercepting area, of the communicating pipe, and a one-way valve is arranged at the other end, located in the intercepting area, of the communicating pipe. A conventional intercepting well is optimized, the special sewage gate valve is additionally arranged on the part, located in the intercepting area, of the communicating pipe, the purpose of adjusting the intercepting multiple is achieved by controlling the opening degree of the gate valve, the one-way valve is additionally arranged at the tail end, located in the intercepting area, of the communicating pipe, and backward flowing caused by the high water level of a downstream sewage pipe is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal drainage facilities, in particular to an anti-backflow interception well with adjustable interception multiples. Background Art

[0002] In municipal facilities, in some old city combined sewer areas, the municipal drainage main has completed the separation of rainwater and sewage. However, due to the narrow roads and complex pipelines in the residential area, the conditions for rainwater and sewage separation are not yet met. A common transitional renovation measure is to install interception facilities at the end of the residential combined sewer pipe to intercept sewage and divert it to the sewage pipe network on sunny days, avoiding direct discharge and pollution of natural water bodies. Common problems include:

[0003] 1. If conventional interception wells are used, once implemented, the interception multiple and interception water volume are determined and cannot be adjusted. This makes it impossible to adapt to the changes in water volume after gradual diversion within the plot in the later stage, affecting the interception effect.

[0004] 2. When the water level in the downstream sewage pipe is high, it will cause sewage backflow and pollute the natural environment;

[0005] 3. If intelligent diversion wells are used, they occupy a large area, are expensive, and are complex to control and difficult to maintain and manage;

[0006] 4. Interception facilities are transitional measures. After the separation of rainwater and sewage is completed, the interception wells need to be dug or sealed, which is time-consuming and labor-intensive. Summary of the Invention

[0007] The technical problem to be solved by the utility model is to provide an anti-backflow interception well with adjustable interception multiple in view of the deficiencies of the above-mentioned prior art.

[0008] The utility model provides a technical solution to the above-mentioned technical problems as follows: a backflow prevention interception well with an adjustable interception ratio, wherein the interior of the interception well is divided into adjacent confluence area and interception area, and an inlet pipe and an outlet pipe are respectively connected on the side walls on opposite sides of the confluence area, and the confluence area and the interception area are connected by a connecting pipe, and a flow trough for organizing the flow direction of sewage is provided between one end of the inlet pipe and one end of the connecting pipe in the confluence area, and a sewage interception pipe is connected on the side wall of the interception area away from the connecting pipe, and a gate valve with an adjustable interception ratio is provided on the part of the connecting pipe located in the interception area, and a one-way valve for preventing sewage backflow is provided on the other end of the connecting pipe located in the interception area.

[0009] The beneficial effects of the present invention are as follows: the interception well with adjustable interception ratio and anti-backflow function of the present invention can adjust the interception ratio in time according to needs by dividing the interior of the interception well into a confluence area and an interception area, and arranging the gate valve on the connecting pipe in the interception area, so as to improve the interception effect; at the same time, the one-way valve can be arranged to prevent the backflow of sewage caused by the connection of rainwater and sewage; at the same time, the flow trough is arranged in the confluence area, which can guide the sewage flow through the connecting pipe into the interception area and into the downstream sewage pipe when the water flow is small in the initial stage of rainwater; after the separation of rainwater and sewage in the residential area is completed in the later stage, there is no need to modify the interception well separately, and the gate valve can be closed to complete the isolation of the rainwater and sewage pipes. It is improved on the basis of conventional interception wells, with a small scope of modification and few additional components, and can greatly optimize the use function of the interception well, without the need for electronic control equipment, simple operation and maintenance, energy saving, low carbon, environmental protection, and strong applicability.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows:

[0011] Furthermore: the anti-backflow interception well with adjustable interception multiple also includes a slag blocking grid, which is arranged in the confluence area and located on the side of the flow channel close to the water outlet pipe.

[0012] The beneficial effect of the above further solution is that by providing the slag-blocking grid, larger garbage carried in rainwater can be prevented from entering the downstream pipeline and causing pipeline congestion.

[0013] Furthermore: the slag blocking grid is arranged obliquely in the confluence area and is arranged facing the pipe opening at one end of the connecting pipe.

[0014] The beneficial effect of the above further solution is that by obliquely arranging the slag screen in the confluence area, its interception and filtration area can be increased to ensure the interception effect, while reducing the resistance to the water flow, which is beneficial to the flow of water.

[0015] Further: the interior of the confluence area is divided into a diversion area and a drainage area along the direction of the connection line between the water inlet pipe and the water outlet pipe, and a flap gate is provided between the diversion area and the drainage area to prevent water from flowing back through the water outlet pipe, and the slag grille is located between the flow trough and the flap gate.

[0016] The beneficial effect of the above further solution is that by dividing the confluence area into a diversion area and a drainage area, and coordinating with the provision of the flap gate, water can be prevented from flowing back into the diversion area through the outlet pipe, thereby ensuring drainage effect.

[0017] Further: the anti-backflow interception well with adjustable interception ratio also includes three wellbores, which are all arranged above the interception well and are respectively connected to the diversion area, drainage area and interception area one by one, and the upper end of the wellbores is set at the same height as the road surface.

[0018] The beneficial effect of the above further solution is that by setting up an independent wellbore for each partition, each partition can be easily controlled individually, which is convenient for subsequent maintenance and inspection.

[0019] Further: the one-way valve adopts a duckbill valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the planar structure of an anti-backflow interception well with adjustable interception multiples according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 1-1 cross-sectional structural diagram;

[0022] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of 2-2.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Intercepting well, 2. Water inlet pipe, 3. Water outlet pipe, 4. Connecting pipe, 5. Flow trough, 6. Sewage intercepting pipe, 7. Gate valve, 8. Check valve, 9. Slag screen, 10. Flap gate, 11. Wellbore. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0026] like Figures 1 to 3 As shown, a backflow prevention interception well with an adjustable interception ratio, the interception well 1 is internally divided into adjacent confluence area and interception area, and an inlet pipe 2 and an outlet pipe 3 are respectively connected on the side walls on opposite sides of the confluence area, and the confluence area and the interception area are connected by a connecting pipe 4, and a flow trough 5 for organizing the flow direction of sewage is provided between one end of the inlet pipe 2 and one end of the connecting pipe 4 in the confluence area, and a sewage interception pipe 6 is connected on the side wall of the interception area away from the connecting pipe 4, and a gate valve 7 with an adjustable interception ratio is provided on the part of the connecting pipe 4 located in the interception area, and a one-way valve 8 for preventing sewage backflow is provided on the other end of the connecting pipe 4 located in the interception area.

[0027] The utility model discloses an anti-backflow interception well with adjustable interception ratio, which can adjust the interception ratio in time according to needs by dividing the interior of the interception well 1 into a confluence area and an interception area, and arranging the gate valve 7 on the connecting pipe 4 in the interception area, thereby improving the interception effect. At the same time, the one-way valve 8 can be arranged to prevent the backflow of sewage caused by the connection of rainwater and sewage. At the same time, the flow channel 5 is arranged in the confluence area to guide the sewage flow through the connecting pipe 4 into the interception area and into the downstream sewage pipe when the water flow is small in the initial stage of rainwater. After the separation of rainwater and sewage in the community is completed in the later stage, there is no need to modify the interception well separately. The gate valve 7 can be closed to complete the isolation of the rainwater and sewage pipes. It is improved on the basis of the conventional interception well, with a small scope of modification and a small number of additional components. The use function of the interception well can be greatly optimized, no electronic control equipment is required, the operation and maintenance are simple, energy-saving, low-carbon, environmentally friendly, and highly applicable.

[0028] In one or more embodiments of the present invention, the anti-backflow interception well with adjustable interception ratio further includes a slag screen 9, which is arranged in the confluence area and located on the side of the flow channel 5 close to the outlet pipe 3. The provision of the slag screen 9 can prevent large garbage carried by rainwater from entering the downstream pipeline and causing pipeline congestion.

[0029] In one or more embodiments of the present invention, the slag screen 9 is arranged obliquely in the confluence area and directly opposite the nozzle of one end of the connecting pipe 4. By obliquely arranging the slag screen 9 in the confluence area, its interception and filtration area can be increased, ensuring the interception effect, while reducing the resistance to the water flow, which is conducive to the flow of water.

[0030] In one or more embodiments of the present invention, the interior of the confluence area is divided into a diversion area and a drainage area along the line connecting the water inlet pipe 2 and the water outlet pipe 3, and a flap gate 10 is provided between the diversion area and the drainage area to prevent water from flowing back through the water outlet pipe 3, and the slag screen 9 is located between the flow trough 5 and the flap gate 10. By dividing the interior of the confluence area into the diversion area and the drainage area and providing the flap gate 10, water can be prevented from flowing back into the diversion area through the water outlet pipe 3, thereby ensuring drainage effect.

[0031] Optionally, in one or more embodiments of the present invention, the anti-backflow interception well with adjustable interception ratio further includes three wellbores 11, each of which is disposed above the interception well 1 and is connected to the diversion area, drainage area, and interception area in a one-to-one correspondence, with the upper ends of the wellbores 11 being disposed at the same height as the road surface. By providing an independent wellbore 11 for each partition, each partition can be easily controlled individually, facilitating subsequent maintenance and inspection.

[0032] Optionally, in one or more embodiments of the utility model, the one-way valve 8 adopts a duckbill valve. The duckbill valve is suitable for small pipes, is convenient to install, and has good anti-backflow effect.

[0033] The anti-backflow intercepting well with adjustable intercepting multiple of the utility model optimizes the conventional intercepting well, adds the sewage special gate valve 7 on the part of the communicating pipe 4 in the intercepting area, reaches the purpose of adjusting the intercepting multiple by controlling the opening of the gate valve 7, simultaneously, adds the one-way valve 8 on the end of the communicating pipe 4 in the intercepting area, prevents the backflow caused by the high water level of the downstream sewage pipe.

[0034] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be contained in the protection scope of the utility model.

Claims

1. A backflow prevention interception well with adjustable interception multiple, characterized by: The interception well (1) is internally divided into adjacent confluence areas and interception areas. An inlet pipe (2) and an outlet pipe (3) are respectively connected and arranged on the opposite side walls of the confluence area. The confluence area and the interception area are connected via a connecting pipe (4). A flow trough (5) for organizing the flow direction of sewage is provided between one end of the inlet pipe (2) and one end of the connecting pipe (4) in the confluence area. A sewage interception pipe (6) is connected and arranged on the side wall of the interception area away from the connecting pipe (4). A gate valve (7) with an adjustable interception multiple is provided on the portion of the connecting pipe (4) located in the interception area. A one-way valve (8) for preventing sewage backflow is provided on the other end of the connecting pipe (4) located in the interception area.

2. The anti-backflow interception well with adjustable interception ratio according to claim 1 is characterized in that: It also includes a slag blocking grid (9), which is arranged in the confluence area and located on a side of the flow channel (5) close to the water outlet pipe (3).

3. The anti-backflow interception well with adjustable interception ratio according to claim 2 is characterized in that: The slag blocking grid (9) is arranged obliquely in the confluence area and is arranged facing the pipe opening at one end of the connecting pipe (4).

4. The anti-backflow interception well with adjustable interception ratio according to claim 2, characterized in that: The interior of the confluence area is divided into a diversion area and a drainage area along the direction of the line connecting the water inlet pipe (2) and the water outlet pipe (3), and a flap gate (10) is provided between the diversion area and the drainage area for preventing water from flowing back through the water outlet pipe (3), and the slag blocking grid (9) is located between the flow trough (5) and the flap gate (10).

5. The anti-backflow interception well with adjustable interception ratio according to claim 4 is characterized in that: It also includes three wellbores (11), which are all arranged above the interception well (1) and are respectively connected to the diversion area, drainage area and interception area in a one-to-one correspondence, and the upper ends of the wellbores (11) are arranged at the same height as the road surface.

6. The anti-backflow interception well with adjustable interception ratio according to any one of claims 1 to 5, characterized in that: The one-way valve (8) is a duckbill valve.

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