A water conservancy pump station sewage device

Abstract

The utility model discloses a water conservancy pump station blowdown device, including integrated prefabricated pump station body still include: the sliding connection in integrated prefabricated pump station body inner wall for replacing the sliding block, the symmetric installation of used for supporting connecting plate has on the sliding block, the grid cage for obstructing impurity is slidably arranged on the connecting plate, the grid cage corresponds integrated prefabricated pump station body water inlet position, when the grid cage is sleeved in the water inlet, forms the first work area, when the grid cage is separated from the water inlet, forms the second work area, detachable setting in the grid cage is used for cutting assembly of scattering impurity. The utility model discloses through the sliding fit of double sliding block and arc track, realizes the quick alternative switching of two groups of grid cage in work area and maintenance area, can complete the sundry cleaning or part replacement of grid cage without stopping, effectively solves the problem that traditional grid maintenance needs to stop the pump station, guarantees the pump station 24 hours continuous blowdown capacity.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage discharge equipment for water conservancy projects, and more specifically, to a sewage discharge device for water conservancy pumping stations. Background Technology

[0002] Hydraulic pumping stations are indispensable key facilities in modern water resource management systems. Their main function is to overcome the limitations of natural terrain elevation differences and insufficient water flow dynamics, enabling the efficient transportation and lifting of water resources. Under natural conditions, water bodies often cannot rely on gravity to complete long-distance or upward transfers, which severely restricts the normal operation of systems such as water supply, irrigation, drainage, and flood control. For example, in urban water supply networks, pumping stations can lift raw water from the source to the treatment plant and then distribute it to users, ensuring the water needs of residents and industrial production. In agriculture, pumping stations support crop growth and increase grain yields through irrigation. In drainage and flood control, pumping stations can promptly remove rainwater and sewage, preventing urban flooding and water pollution, and ensuring public safety.

[0003] An integrated prefabricated pumping station is a highly integrated pumping system. Its core components include a cylinder, pump set, piping system, bar screen, level detection equipment, and intelligent control unit. The cylinder provides sealing support; the pump set is responsible for pumping and lifting water; the piping ensures water flow guidance; the bar screen intercepts impurities; the level detection equipment monitors the water level; and the control unit enables automatic regulation. During operation, water enters through the inlet and is initially filtered by the bar screen; when the level sensor reaches a set threshold, it automatically starts the submersible pump, pressurizes the water, and delivers it to the target outlet through the pipeline; the control unit continuously monitors and adjusts the operation, and the system automatically shuts down and stands by when the water level drops.

[0004] Several problems exist in the operation of water pumping stations. On the one hand, most pumping stations use bar screens as the first line of defense. However, these screens are constantly exposed to an environment rich in impurities, making them prone to entanglement and adhesion of fibers, plastics, branches, and other debris, gradually clogging the screen gaps. This not only increases head loss and reduces flow efficiency, but also requires a complete system shutdown and manual cleaning or replacement. Frequent or prolonged interruptions directly affect the pumping station's continuous sewage discharge capacity and restrict drainage efficiency. On the other hand, when the bar screen encounters large, hard debris that exceeds the screen gaps but can still be propelled by the water flow, this debris may become stuck at the inlet or force its way through the screen into the pump body. The former partially blocks the inlet channel, while the latter causes severe impact and blockage to the internal components of the high-speed rotating pump, exacerbating mechanical wear. Therefore, we urgently need a sewage discharge device for water pumping stations to solve these problems. Utility Model Content

[0005] One objective of this invention is to provide a new technical solution for a sewage discharge device for a water conservancy pumping station. By using a double slider and an arc-shaped track, the grid cage can be switched and maintained without shutting down the machine. The cutting component can chop up large pieces of debris, thereby protecting the pump body and improving the continuous sewage discharge efficiency of the pumping station.

[0006] According to a first aspect of this utility model, a sewage discharge device for a water conservancy pumping station is provided, comprising an integrated prefabricated pumping station body, and further comprising: a slider for replacement slidably connected to the inner wall of the integrated prefabricated pumping station body, wherein a connecting plate for support is symmetrically installed on the slider, and a grid cage for blocking impurities is slidably disposed on the connecting plate, wherein the grid cage corresponds to the water inlet position of the integrated prefabricated pumping station body, wherein when the grid cage is fitted onto the water inlet, a first working area is formed, and when the grid cage is detached from the water inlet, a second working area is formed; and a cutting component for breaking up impurities is detachably disposed inside the grid cage, wherein the cutting component is located at the water inlet position of the integrated prefabricated pumping station body.

[0007] Optionally, the integrated prefabricated pump station body is fixedly installed with an arc-shaped track for moving the slider, the slider is slidably connected to the arc-shaped track, and there are two sets of sliders.

[0008] Optionally, one set of the connecting plates is internally threaded with a threaded rod, and the other set of the connecting plates is internally fixedly connected with a guide rod. Both sets of the connecting plates are provided with support plates for installing the grid cage. The connection of one set of support plates is threaded to the threaded rod, and the connection of the other set of support plates is slidably connected to the guide rod. A connecting rod is provided between the two sets of connecting plates, and the two ends of the connecting rod are fixedly installed with the corresponding support plates. When the threaded rod rotates, the grid cage moves closer to or away from the water inlet on the integrated prefabricated pump station body.

[0009] Optionally, the connecting plate is provided with a drainage groove for drainage.

[0010] Optionally, the cutting assembly includes mounting rods symmetrically mounted on the grid cage, with positioning slots for adjusting the height on both sets of mounting rods.

[0011] Optionally, a shaft is provided between the grid cages, and the two ends of the shaft are slidably connected in the corresponding positioning strip holes. When the shaft moves to the corresponding position, the nut at the end of the shaft abuts against the mounting rod to form a locking area.

[0012] Optionally, at least three sets of rotating rings are rotatably connected to the shaft, and cutting blades for cutting impurities are mounted in a circular array on the rotating rings.

[0013] Optionally, multiple sets of the rotating rings are arranged linearly and equidistantly along the axis of the shaft.

[0014] 1. According to one embodiment of this disclosure, the sewage discharge device of the water conservancy pumping station achieves rapid alternation between two sets of bar screens in the working area and maintenance area through the sliding cooperation of double sliders and arc-shaped rails. The cleaning of debris or replacement of parts in the bar screens can be completed without stopping the machine, effectively solving the problem that the pumping station needs to be shut down for traditional bar screen maintenance, and ensuring the pumping station's continuous sewage discharge capacity for 24 hours. At the same time, the cage-type structure of the bar screen increases the impurity interception area, reduces the entanglement of debris such as fibers and plastic products, and extends the cleaning cycle. Furthermore, relying on the precise transmission of the threaded rod and guide rod, it ensures that the bar screen fits seamlessly with the inlet of the integrated prefabricated pumping station body, preventing debris from leaking in.

[0015] 2. According to one embodiment of this disclosure, the sewage discharge device of the water conservancy pumping station uses a detachable cutting component inside the grid cage to drive the rotating ring to rotate by the impact of water flow and debris. The cutting blades of the ring array can cut large hard debris into a size that the pump body can pass through, thus preventing debris from getting stuck at the inlet of the integrated prefabricated pumping station body or entering the pump body from the source; reducing the impact and jamming of large debris on the high-speed rotating components inside the pump body, reducing mechanical wear of the pump body, extending the service life of the pump body, and providing protection for the long-term stable operation of the pumping station.

[0016] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of a sewage discharge device for a water conservancy pumping station in one embodiment; Figure 2 This is a partial cross-sectional view or structural schematic diagram of a sewage discharge device for a water conservancy pumping station in one embodiment; Figure 3 This is a partial cross-sectional view of a sewage discharge device for a water conservancy pumping station in one embodiment. Figure 4 This is a schematic diagram of the grid cage structure of a sewage discharge device for a water conservancy pumping station in one embodiment; Figure 5 This is a schematic diagram of the connecting plate structure of a sewage discharge device for a water conservancy pumping station in one embodiment; Figure 6 This is a schematic diagram of the cutting blade structure of a sewage discharge device for a water conservancy pumping station in one embodiment.

[0019] The following are marked in the diagram: 1. Integrated prefabricated pump station body; 2. Sliding block; 3. Connecting plate; 4. Grille cage; 5. Arc track; 6. Threaded rod; 7. Guide rod; 8. Support plate; 9. Connecting rod; 10. Drainage trough; 11. Mounting rod; 12. Positioning strip hole; 13. Shaft; 14. Rotating ring; 15. Cutting blade. Detailed Implementation

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0021] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0022] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0023] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0024] like Figure 1-6 As shown, a sewage discharge device for a water conservancy pumping station includes an integrated prefabricated pumping station body 1. Here, the integrated prefabricated pumping station body 1 is a direct reference to a conventional technical solution, and will not be described in detail here.

[0025] It also includes a slider 2 that is slidably connected to the inner wall of the integrated prefabricated pump station body 1 for replacement. An arc-shaped track 5 for the slider 2 to move is fixedly installed on the integrated prefabricated pump station body 1. The slider 2 is slidably connected to the arc-shaped track 5. There are two sets of sliders 2.

[0026] Here, the two sliders 2 work alternately to achieve non-stop switching: the two sets of sliders 2 correspond to a set of bar screens 4 respectively. When a set of bar screens 4 needs maintenance, the other set can be quickly switched to the working area, completely avoiding pump station shutdown caused by traditional bar screen maintenance, ensuring 24-hour continuous sewage discharge capacity, especially suitable for scenarios requiring high-intensity drainage such as flood season.

[0027] Furthermore, the curvature of the arc-shaped track 5 is consistent with the curvature of the inner wall of the integrated prefabricated pump station body 1, so that the slider 2 will not get stuck or deviate when sliding. The arc-shaped track 5 is made of stainless steel, which is resistant to sewage corrosion and is not easy to rust or get stuck after long-term use. The connection between the slider 2 and the arc-shaped track 5 adopts a lightweight design, and the staff can manually push the slider 2 to switch. In other embodiments, the arc-shaped track 5 can be an electric guide rail, and the slider 2 can be moved by an external power supply unit and a drive unit.

[0028] A connecting plate 3 for support is symmetrically installed on the slider 2, and a grid cage 4 for blocking impurities is slidably set on the connecting plate 3.

[0029] Here, the bar screen 4 adopts a mesh cage with a three-dimensional structure, which prevents debris such as fibers and plastic bags from getting tangled on the bars, thus extending the cleaning cycle. The bar screen 4 is made of 304 or 316 stainless steel, which is resistant to acid and alkali corrosion in sewage and impact and wear from debris, resulting in a long service life. After the bar screen 4 is fixed to the support plate 8, it becomes a whole. During maintenance, there is no need to disassemble the bar screen body. You only need to move the slider 2 to the second working area for cleaning, avoiding the cumbersome operation of traditional bar screen disassembly and shortening maintenance time.

[0030] It should be noted that the bar screen 4 can be opened for easy cleaning by operators. This is a direct reference to conventional technical solutions and will not be elaborated on here.

[0031] One set of connecting plates 3 is internally threaded with a threaded rod 6, and the other set of connecting plates 3 is internally fixedly connected with a guide rod 7. Both sets of connecting plates 3 are provided with support plates 8 for installing the grid cage 4. The connection of one set of support plates 8 is threaded to the threaded rod 6, and the connection of the other set of support plates 8 is slidably connected to the guide rod 7. A connecting rod 9 is provided between the two sets of connecting plates 3, and the two ends of the connecting rod 9 are fixedly installed with the corresponding support plates 8. When the threaded rod 6 rotates, the grid cage 4 moves closer to or further away from the water inlet on the integrated prefabricated pump station body 1. The connecting plate 3 is provided with a drainage groove 10 for drainage. The grid cage 4 corresponds to the water inlet position of the integrated prefabricated pump station body 1. When the grid cage 4 is fitted onto the water inlet, a first working area is formed. When the grid cage 4 is removed from the water inlet, a second working area is formed.

[0032] Here, the threaded rod 6 drives the support plate 8 to move through the threaded transmission, which can precisely control the fit between the grid cage 4 and the inlet of the integrated prefabricated pump station body 1, and prevent debris from leaking into the pump body due to excessive gaps, thus ensuring the interception effect.

[0033] Furthermore, the guide rod 7 and the support plate 8 slide together to prevent the support plate 8 from shifting due to water flow impact or gravity during movement, thus avoiding jamming of the grid cage 4 or misalignment with the inlet of the integrated prefabricated pump station body 1, ensuring smooth operation. The connecting rod 9 connects the two sets of support plates 8 to form a stable rectangular frame structure, avoiding uneven force on the support plate 8 when driven by a single threaded rod 6, which would lead to bending deformation, extend the service life of the support components, and reduce maintenance costs.

[0034] Furthermore, by adjusting the threaded rod 6, the distance between the bar screen 4 and the inlet of the integrated prefabricated pump station body 1 can be changed. When the pump station's inlet flow rate is large, the distance between the bar screen 4 and the inlet of the integrated prefabricated pump station body 1 can be appropriately shortened to reduce water flow disturbance; when the flow rate is small, the distance can be slightly increased to reduce head loss and adapt to different working conditions.

[0035] It should be noted that the rotation of the threaded rod 6 can be achieved by manual turning or by motor drive. This is a conventional technical solution and will not be elaborated on here.

[0036] A detachable cutting assembly for breaking up impurities is installed inside the bar screen 4, and the cutting assembly is located at the inlet of the integrated prefabricated pump station body 1. The cutting assembly includes mounting rods 11 symmetrically installed on the bar screen 4. Both sets of mounting rods 11 are provided with positioning strip holes 12 for adjusting the height. A shaft 13 is provided between the bar screens 4, and the two ends of the shaft 13 are slidably connected in the corresponding positioning strip holes 12. When the shaft 13 moves to the corresponding position, the nut at the end of the shaft 13 abuts against the mounting rod 11 to form a locking area. At least three sets of rotating rings 14 are rotatably connected to the shaft 13. Cutting blades 15 for cutting impurities are installed in a circular array on the rotating rings 14. The multiple sets of rotating rings 14 are linearly and equidistantly arranged along the axis of the shaft 13.

[0037] Here, the rotating ring 14 rotates by the impact of water flow and debris, without the need for an additional motor or hydraulic device, thus reducing the energy consumption of the pump station. Multiple sets of rotating rings 14 are arranged at equal intervals along the shaft 13, and the cutting blades 15 are arranged in a ring array on the rotating ring 14, which can cover the entire cross section of the inlet of the integrated prefabricated pump station body 1, preventing large pieces of debris from passing through the cutting blind zone and further improving the crushing effect.

[0038] Furthermore, the positioning slot 12 allows for vertical adjustment of the position of the shaft 13. When the water level in the pumping station changes, such as low water level during the dry season and high water level during the flood season, the height of the shaft 13 can be adjusted to ensure that the cutting assembly is always in the area where debris is concentrated, thus ensuring that the crushing effect is not affected by the water level. The shaft 13 is fixed to the mounting rod 11 by the end nut. When disassembling, the shaft 13 can be removed simply by unscrewing the nut, making it convenient to replace the worn rotating ring 14 or cutting blade 15 without replacing the entire cutting assembly, thus reducing the later maintenance cost.

[0039] Furthermore, the cutting blade 15 is made of high manganese steel or tungsten carbide alloy, which has high hardness and strong wear resistance. It can withstand the impact of large hard debris such as stones and metal fragments, reducing the number of downtime replacements.

[0040] In this invention, rotating the threaded rod 6, which can be manually or electrically driven, moves the support plate 8 along the guide rod 7, causing a set of grid cages 4 to surround the inlet of the integrated prefabricated pump station body 1. This is the first working area. When water carrying debris enters the inlet, the grid cages 4 intercept fibers, branches, and other debris. Large, hard debris impacts the rotating ring 14, causing it to rotate. The cutting blade 15 cuts the large debris, and the resulting particle size is smaller than the allowable size for the pump body. The shredded debris then enters the subsequent processing stage of the pump station with the water flow. The drainage trough 10 on the connecting plate 3 promptly drains the water accumulated between the grid cages 4 and the connecting plate 3, preventing increased head loss. When the first working area... If the bar screen 4 is covered with a lot of debris, the degree of blockage can be determined by the liquid level sensor or pressure sensor in the pump station. The slider 2 is then pushed to slide along the arc track 5 to move the bar screen 4 to the second working area away from the inlet of the integrated prefabricated pump station body 1. At the same time, another set of bar screen 4 slides with the slider 2 to the inlet of the integrated prefabricated pump station body 1 and is adjusted to the first working area by the threaded rod 6 to achieve switching without stopping the pump. In the second working area, the staff can clean the debris from the bar screen 4 by directly dumping it or washing it with a high-pressure water gun, or by unscrewing the nut at the end of the shaft 13 and removing the shaft 13 to replace the worn rotating ring 14 or cutting blade 15. The entire maintenance process does not affect the continuous sewage discharge of the pump station.

[0041] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A sewage discharge device for a water conservancy pumping station, comprising an integrated prefabricated pumping station body (1), characterized in that: Also includes: A sliding block (2) is slidably connected to the inner wall of the integrated prefabricated pump station body (1) for replacement. A connecting plate (3) for support is symmetrically installed on the sliding block (2). A grid cage (4) for blocking impurities is slidably arranged on the connecting plate (3). The grid cage (4) corresponds to the water inlet position of the integrated prefabricated pump station body (1). When the grid cage (4) is fitted on the water inlet, a first working area is formed. When the grid cage (4) is removed from the water inlet, a second working area is formed. A cutting component is detachably installed inside the grid cage (4) to break up impurities, and the cutting component is located at the inlet of the integrated prefabricated pump station body (1).

2. The sewage discharge device for a water conservancy pumping station according to claim 1, characterized in that: The integrated prefabricated pump station body (1) is fixedly installed with an arc-shaped track (5) for the movement of the slider (2). The slider (2) is slidably connected to the arc-shaped track (5). There are two sets of sliders (2).

3. A sewage discharge device for a water conservancy pumping station according to claim 1, characterized in that: One set of connecting plates (3) is internally threaded with a threaded rod (6), and the other set of connecting plates (3) is internally fixedly connected with a guide rod (7). Both sets of connecting plates (3) are provided with support plates (8) for installing the grid cage (4). The connection of one set of support plates (8) is threadedly connected to the threaded rod (6), and the connection of the other set of support plates (8) is slidably connected to the guide rod (7). A connecting rod (9) is provided between the two sets of connecting plates (3), and the two ends of the connecting rod (9) are fixedly installed with the corresponding support plates (8). When the threaded rod (6) rotates, the grid cage (4) moves closer to or further away from the water inlet on the integrated prefabricated pump station body (1).

4. A sewage discharge device for a water conservancy pumping station according to claim 3, characterized in that: The connecting plate (3) is provided with a drainage groove (10) for drainage.

5. A sewage discharge device for a water conservancy pumping station according to claim 1, characterized in that: The cutting assembly includes mounting rods (11) symmetrically mounted on the grid cage (4), and both sets of mounting rods (11) are provided with positioning strip holes (12) for adjusting the height.

6. A sewage discharge device for a water conservancy pumping station according to claim 1, characterized in that: A shaft (13) is provided between the grid cages (4), and the two ends of the shaft (13) are slidably connected in the corresponding positioning strip holes (12). When the shaft (13) moves to the corresponding position, the nut at the end of the shaft (13) abuts against the mounting rod (11) to form a locking area.

7. A sewage discharge device for a water conservancy pumping station according to claim 6, characterized in that: At least three sets of rotating rings (14) are rotatably connected to the shaft (13), and cutting blades (15) for cutting impurities are installed in a ring array on the rotating rings (14).

8. A sewage discharge device for a water conservancy pumping station according to claim 7, characterized in that: Multiple sets of the rotating rings (14) are arranged linearly and equidistantly along the axis of the shaft (13).

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