Rainwater and sewage flushing assembly and rainwater and sewage interception integrated pump station using same

Abstract

The utility model discloses a rain and pollution flush subassembly and use its rain and pollution intercept integrated pump station, include: the liquid pumping pipe, with the liquid inlet of liquid pumping pipe links to each other liquid pump, with the liquid outlet of liquid pumping pipe links to each other liquid discharge pipe and with the pipe body intercommunication of liquid pumping pipe links to each other flush pipe, wherein flush pipe is connected with liquid pumping pipe through the adapter pipe, and the adapter pipe is equipped with the control valve for controlling the on-off state between flush pipe and liquid discharge pipe, flush pipe is equipped with the liquid outlet in the end away from the adapter pipe.

Description

Technical Field

[0001] This utility model relates to the field of rainwater and sewage interception and treatment technology, and in particular to a rainwater and sewage flushing component and an integrated rainwater and sewage interception pump station using the same. Background Technology

[0002] In the early stages of rainfall, rainwater dissolves vehicle exhaust and industrial waste gas in the air and washes away asphalt roads, resulting in rainwater containing a large amount of pollutants. If this highly polluted rainwater is directly discharged into rivers, it will cause serious environmental pollution. Therefore, it is necessary to use interception pumping stations to divert and treat the polluted rainwater.

[0003] Interception pumping stations typically regulate the opening and closing of weirs based on liquid levels and rainfall to achieve rainwater and sewage separation. Interception wells are also equipped with submersible sewage pumps, allowing sewage from the well to be pumped to the sewage treatment plant via pressure pipes. However, these submersible pumps have a certain submersion depth, and silt easily accumulates at the bottom of the well, hindering pump operation and preventing cleaner rainwater from flowing into waterways. Therefore, for long-term use, the silt accumulated on the bottom wall of the well needs to be cleaned regularly. To address this, CN217379171U discloses an integrated rainwater and sewage separation interception well with backwashing function. This well reduces the risk of pump blockage by installing a backwash pipe on the pressure pipe of the submersible sewage pump, thus reducing silt settling at the bottom of the well. However, practical research has revealed the following problems with this backwash pipe design: The backwash pipe is connected to a pressure pipeline, which extends vertically upwards to the upper part of the well casing. The upper end of each pressure pipeline is connected to a flexible joint via a check valve. A gate valve is installed at the inlet of the flexible joint, and the electrical control cabinet is electrically connected to the gate valve. Based on this structure, when flushing the inner bottom wall of the well casing is required, a separate water pipe needs to be installed at the inlet of the flexible joint, or sufficient rainwater level needs to be present inside the well casing to facilitate rainwater entry into the inlet of the flexible joint. Therefore, the actual operation is not convenient.

[0004] Furthermore, for intercepting pump stations with large cylinder volumes in actual use, the corresponding inner bottom wall area is large. When silt is present, the flushing range that can be achieved by relying solely on a single backwash pipe is limited, and the corresponding silt removal effect is also limited. While using multiple backwash pipes arranged in parallel within the cylinder can effectively increase the flushing area, this arrangement also increases the complexity of the overall piping distribution within the cylinder, making it inconvenient for manual entry into the cylinder for maintenance of various components.

[0005] Therefore, based on the above issues, the layout of the backwash pipes inside the cylinder needs further optimization. Utility Model Content

[0006] The primary objective of this invention is to provide a rainwater and sewage flushing assembly to solve the technical problem of optimizing the layout of the backwash pipe inside the cylinder.

[0007] The second objective of this invention is to provide an integrated pump station for rainwater and sewage interception, in order to solve the technical problem of optimizing the layout of the backwash pipe inside the cylinder.

[0008] The rainwater and sewage flushing assembly of this utility model is implemented as follows: A rainwater and sewage flushing assembly includes: a suction pipe, a pump connected to the inlet of the suction pipe, a drain pipe connected to the outlet of the suction pipe, and a flushing pipe connected to the body of the suction pipe; wherein... The flushing pipe is connected to the extraction pipe via a connecting pipe, and the connecting pipe is equipped with a control valve for controlling the on / off state between the flushing pipe and the drainage pipe. The flushing pipe has an outlet at the end furthest from the connecting pipe.

[0009] In an optional embodiment of this utility model, two liquid extraction tubes are provided, arranged parallel to each other, and each liquid extraction tube is equipped with a liquid pump; and The drain ports of the two suction tubes are connected to the same drain tube; The connecting tube is connected to one of the liquid extraction tubes.

[0010] The integrated pump station for rainwater and sewage interception of this utility model is implemented as follows: An integrated stormwater and sewage interception pumping station includes at least: a well body with a hollow cavity and the aforementioned stormwater and sewage flushing assembly disposed within the hollow cavity; wherein The liquid pump is located on the inner bottom wall of the wellbore; and The outlet is adapted to spray liquid to flush away sludge adhering to the inner bottom wall of the wellbore.

[0011] In an optional embodiment of this invention, the outlet is equipped with an arc-shaped outlet pipe, so that the liquid in the outlet pipe is sprayed parallel to the inner bottom wall of the wellbore; and One of the outer side walls of the outlet pipe is adapted to abut against the inner bottom wall of the wellbore.

[0012] In an optional embodiment of this invention, the flushing tube is offset to one side of the hollow cavity so that the flushing tube is adjacent to the inner wall of the hollow cavity.

[0013] In an optional embodiment of this utility model, the liquid outlet is configured with an umbrella-shaped spray structure; The umbrella-shaped injection structure is located above the inner bottom wall of the wellbore; and The umbrella-shaped injection structure includes at least a plurality of injection ports, and the liquid ejected from the plurality of injection ports is sprayed vertically toward the inner bottom wall of the wellbore.

[0014] In an optional embodiment of this utility model, the umbrella-shaped spray structure further includes a connecting pipe detachably fitted with the liquid outlet, at least three liquid passage pipes connected to the connecting pipe and spaced apart in a trumpet shape, and an annular coil connected to the ends of the three liquid passage pipes away from the connecting pipe; wherein The annular coil has multiple spray nozzles spaced apart on its side end face away from the connecting pipe.

[0015] In an optional embodiment of this invention, the umbrella-shaped spray structure further includes an annular support tube for connecting at least three liquid passage pipes.

[0016] In an optional embodiment of this invention, the connecting pipe is threadedly connected to the outlet of the flushing pipe.

[0017] In an optional embodiment of this invention, the flushing pipe is arranged adjacent to the center of the hollow cavity.

[0018] By adopting the above technical solution, this utility model has the following beneficial effects: The rainwater and sewage flushing assembly and the integrated rainwater and sewage interception pump station using it have a flushing pipe directly connected to a suction pipe. This allows for direct flushing of sludge from the inner bottom wall of the well shaft when necessary. The pump draws rainwater from inside the well shaft, which then flows through the suction pipe into the flushing pipe. The flushing pipe then flushes the sludge from the inner bottom wall of the well shaft, preventing sludge accumulation. This structure achieves dual functionality for the pump, enabling it to power both the discharge of rainwater and sewage from inside the well shaft and the sludge flushing process, thus simplifying the overall structure of the flushing mechanism within the well shaft. Attached Figure Description

[0019] Figure 1 This is a first-view structural schematic diagram of the rainwater and sewage flushing assembly of Embodiment 2 of this utility model; Figure 2 This is a second-view structural schematic diagram of the rainwater and sewage flushing assembly of Embodiment 2 of this utility model; Figure 3 This is a third-view structural schematic diagram of the rainwater and sewage flushing assembly of Embodiment 2 of this utility model; Figure 4 This is a schematic diagram of the umbrella-shaped spray structure of the rainwater and sewage flushing assembly in Embodiment 3 of this utility model.

[0020] In the diagram: 1. Liquid extraction pipe; 2. Liquid pump; 3. Liquid discharge pipe; 4. Flushing pipe; 5. Connecting pipe; 6. Control valve; 7. Wellbore; 8. Liquid outlet pipe; 9. Connecting pipe; 10. Liquid passage pipe; 11. Annular coil; 12. Annular support pipe. Detailed Implementation

[0021] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Example 1: Please see Figures 1 to 3 As shown, this embodiment provides a rainwater and sewage flushing assembly, including: a liquid suction pipe 1, a liquid pump 2 connected to the liquid inlet of the liquid suction pipe 1, a liquid discharge pipe 3 connected to the liquid outlet of the liquid suction pipe 1, and a flushing pipe 4 connected to the pipe body of the liquid suction pipe 1.

[0023] Based on the above structure, the flushing pipe 4 is connected to the liquid extraction pipe 1 through the connecting pipe 5, and the connecting pipe 5 is equipped with a control valve 6 for controlling the on / off state between the flushing pipe 4 and the drain pipe 3; the end of the flushing pipe 4 away from the connecting pipe 5 is provided with a liquid outlet.

[0024] In an optional embodiment, to improve the efficiency of the drainage process, two suction pipes 1 are provided, which are distributed parallel to each other, and each suction pipe 1 is equipped with a liquid pump 2; the drainage ports of the two suction pipes 1 are connected to the same drainage pipe 3; and the connecting pipe 5 is connected to one of the suction pipes 1. Here, the optional flushing pipe 4 is parallel to the suction pipe 1, and the connecting pipe 5 is perpendicular to the flushing pipe 4.

[0025] In this embodiment of the rainwater and sewage flushing assembly, the flushing pipe 4 is directly connected to the extraction pipe 1. Thus, when it is necessary to flush the sludge on the inner bottom wall of the well body 7, the pump 2 directly draws rainwater from inside the well body 7, which then flows through the extraction pipe 1 into the flushing pipe 4. The flushing pipe 4 then flushes the sludge on the inner bottom wall of the well body 7 to prevent sludge accumulation. This structure achieves a dual-purpose function for the pump 2, enabling it to power both the rainwater and sewage discharge inside the well body 7 and the sludge flushing process, thereby simplifying the overall structure of the flushing mechanism within the well body 7.

[0026] In summary, for the rainwater and sewage flushing assembly of this embodiment, during the process of the liquid pump 2 discharging rainwater and sewage from the well body 7, the control valve 6 of the connecting pipe 5 can be opened in a timely manner without the need to add an additional water inlet pipe. This allows some of the rainwater in the pumping pipe 1 to enter the flushing pipe 4 while being discharged, thereby disturbing the sludge on the inner bottom wall of the well body 7 while discharging the rainwater and sewage, so that the sludge can be discharged from the drain pipe 3 along with the rainwater and sewage.

[0027] Example 2: Please see Figures 1 to 3As shown, based on the rainwater and sewage flushing assembly of Embodiment 1, this embodiment provides an integrated rainwater and sewage interception pumping station, which includes at least: a well body 7 with a hollow cavity and the rainwater and sewage flushing assembly of Embodiment 1 disposed in the hollow cavity; wherein the liquid pump 2 is disposed on the inner bottom wall of the well body 7; and the liquid outlet is adapted to spray liquid to flush the sludge adhering to the inner bottom wall of the well body 7.

[0028] Based on the above, in this embodiment, the outlet is equipped with an arc-shaped outlet pipe 8 so that the liquid in the outlet pipe 8 is sprayed parallel to the inner bottom wall of the wellbore 7; and one of the outer side walls of the outlet pipe 8 is adapted to abut against the inner bottom wall of the wellbore 7. By attaching one outer side wall of the outlet pipe 8 to the inner bottom wall of the wellbore 7, the reliability and stability of the entire flushing pipe 4 in the long-term use within the wellbore 7 can be improved.

[0029] More specifically, in this embodiment, the flushing pipe 4 is offset to one side of the hollow cavity so that the flushing pipe 4 is adjacent to the inner wall of the hollow cavity. In this case, the liquid sprayed from the liquid outlet pipe 8 can flow along the inner bottom wall of the well body 7 to the maximum extent to generate a disturbance effect on the sludge.

[0030] In summary, for the integrated stormwater and sewage interception pump station of this embodiment, when the liquid in the outlet pipe 8 is sprayed parallel to the inner bottom wall of the well body 7, the liquid acts directly on the sludge to prevent the sludge from accumulating on the inner bottom wall of the well body 7.

[0031] Example 3: Please see Figure 4 As shown, based on the stormwater and sewage flushing assembly of Embodiment 1, this embodiment provides an integrated stormwater and sewage interception pumping station, which includes at least: a well body 7 with a hollow cavity and the stormwater and sewage flushing assembly of Embodiment 1 disposed within the hollow cavity; wherein the liquid pump 2 is disposed on the inner bottom wall of the well body 7; and the liquid outlet is adapted to spray liquid to flush the sludge adhering to the inner bottom wall of the well body 7. The end of the drain pipe 3 away from the pumping pipe 1 extends through the side wall of the well body 7 to the outside of the well body 7 to meet the sewage discharge requirements.

[0032] In this embodiment, the outlet is equipped with an umbrella-shaped spray structure; the umbrella-shaped spray structure is located above the inner bottom wall of the wellbore 7; and the umbrella-shaped spray structure includes at least multiple spray nozzles, with the liquid sprayed from the multiple spray nozzles vertically sprayed towards the inner bottom wall of the wellbore 7. It should be noted that the liquid sprayed from the nozzles can disturb the sludge by vertically spraying towards the inner bottom wall of the wellbore 7. Therefore, optionally, each spray nozzle is adapted to be in a close-fitting state with the inner bottom wall of the wellbore 7. This way, on the one hand, the liquid sprayed from the nozzles can be directly used to disturb the sludge on the inner bottom wall of the wellbore 7, and on the other hand, it can improve the reliability and stability of the entire flushing pipe 4 and the umbrella-shaped spray structure in the wellbore 7 during long-term use.

[0033] More specifically, the umbrella-shaped spray structure also includes a connecting pipe 9 detachably fitted to the outlet, at least three fluid passage pipes 10 connected to the connecting pipe 9 and spaced apart in a trumpet shape, and an annular coil 11 connected to the end of the three fluid passage pipes 10 away from the connecting pipe 9; wherein the annular coil 11 has multiple spray nozzles spaced apart on its side face away from the connecting pipe 9. In one optional case, the connecting pipe 9 is threadedly connected to the outlet of the flushing pipe 4. By using the multiple spray nozzles here to act on different parts of the inner bottom wall of the wellbore 7, the uniformity and efficiency of the flushing effect on the sludge formation on the inner bottom wall of the wellbore 7 are improved.

[0034] Based on the above structure, in order to improve the reliability and stability of the overall umbrella-shaped liquid spraying structure in use, the umbrella-shaped liquid spraying structure also includes an annular support pipe 12 for connecting at least three liquid passage pipes 10. The design of the annular support pipe 12 can prevent the liquid passage pipes 10 from deforming during long-term use.

[0035] Based on the above, in order to optimize the performance of the umbrella-shaped spray structure and make the liquid sprayed from the annular coil as evenly as possible sprayed onto different areas of the inner bottom wall of the wellbore 7, the flushing pipe 4 in this embodiment is arranged adjacent to the center of the hollow cavity.

[0036] In summary, for the integrated stormwater and sewage interception pump station of this embodiment, the umbrella-shaped spray structure design allows the flushing liquid to be sprayed more evenly onto the inner bottom wall of the well body 7. Furthermore, the sludge in different areas of the inner bottom wall of the well body 7 is simultaneously disturbed, and the sludge also interacts with each other due to its flow. This achieves a synergistic and complementary effect on the disintegration of sludge at different points. Moreover, compared to the integrated stormwater and sewage interception pump station of Embodiment 2, this embodiment uses an umbrella-shaped spray structure instead of the outlet pipe 8 of Embodiment 2, making it particularly suitable for larger integrated stormwater and sewage interception pump stations. That is, when the inner bottom wall area of ​​the well body is large, the umbrella-shaped spray structure of Embodiment 3 can be used; when the inner bottom wall area of ​​the well body is relatively small, the outlet pipe 8 of Embodiment 2 can also meet the requirements. Therefore, depending on the actual volume of the integrated stormwater and sewage interception pump station, the choice between the outlet pipe 8 and the umbrella-shaped spray structure can be adaptively made.

[0037] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0038] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0042] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A rainwater and sewage flushing assembly, characterized in that, include: The liquid extraction tube, the liquid pump connected to the inlet of the liquid extraction tube, the liquid discharge tube connected to the outlet of the liquid extraction tube, and the flushing tube connected to the body of the liquid extraction tube. in The flushing pipe is connected to the extraction pipe via a connecting pipe, and the connecting pipe is equipped with a control valve for controlling the on / off state between the flushing pipe and the drainage pipe. The flushing pipe has an outlet at the end furthest from the connecting pipe.

2. The rainwater and sewage flushing assembly according to claim 1, characterized in that, The liquid extraction tubes are provided in two parallel configurations, and each tube is equipped with a liquid pump; and The drain ports of the two suction tubes are connected to the same drain tube; The connecting tube is connected to one of the liquid extraction tubes.

3. An integrated pumping station for rainwater and sewage interception, characterized in that, At least including: A well shaft having a hollow cavity and a rainwater and sewage flushing assembly as described in claim 1 or 2 disposed within the hollow cavity; in The liquid pump is located on the inner bottom wall of the wellbore; and The outlet is adapted to spray liquid to flush away sludge adhering to the inner bottom wall of the wellbore.

4. The integrated pumping station for rainwater and sewage interception according to claim 3, characterized in that, The outlet is equipped with an arc-shaped outlet pipe so that the liquid in the outlet pipe is sprayed parallel to the inner bottom wall of the wellbore; and One of the outer side walls of the outlet pipe is adapted to abut against the inner bottom wall of the wellbore.

5. The integrated pumping station for rainwater and sewage interception according to claim 4, characterized in that, The flushing tube is offset to one side of the hollow cavity so that the flushing tube is adjacent to the inner wall of the hollow cavity.

6. The integrated pumping station for rainwater and sewage interception according to claim 3, characterized in that, The liquid outlet is equipped with an umbrella-shaped spray structure; The umbrella-shaped injection structure is located above the inner bottom wall of the wellbore; and The umbrella-shaped injection structure includes at least a plurality of injection ports, and the liquid ejected from the plurality of injection ports is sprayed vertically toward the inner bottom wall of the wellbore.

7. The integrated pumping station for rainwater and sewage interception according to claim 6, characterized in that, The umbrella-shaped spray structure also includes a connecting pipe that is detachably fitted with the liquid outlet, at least three liquid passage pipes that are connected to the connecting pipe and are arranged in a trumpet-shaped interval, and an annular coil that is connected to the end of the three liquid passage pipes away from the connecting pipe. in The annular coil has multiple spray nozzles spaced apart on its side end face away from the connecting pipe.

8. The integrated pumping station for rainwater and sewage interception according to claim 7, characterized in that, The umbrella-shaped spray structure also includes an annular support tube for connecting at least three liquid inlets.

9. The integrated stormwater and sewage interception pumping station according to claim 7 or 8, characterized in that, The connecting pipe is threadedly connected to the outlet of the flushing pipe.

10. The integrated stormwater and sewage interception pumping station according to claim 7 or 8, characterized in that, The flushing pipe is arranged adjacent to the center of the hollow cavity.

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