A prefabricated pumping station

Abstract

This invention belongs to the technical field of municipal drainage equipment, and relates to a prefabricated pumping station, including a cylinder and a control cabinet. The cylinder has an inlet on one side and an outlet connected to a water pump on the other side. A screen is installed at the inlet, sliding on two sets of parallel guide rails. The guide rails include a top rail, a bottom rail, a sliding rail, and an lifting rail. The top and bottom rails are vertically centered, while the sliding and lifting rails are spaced apart. The upper end of the sliding rail connects to the top rail, and the lower end connects to the bottom rail. The upper end of the lifting rail connects to the top rail, and the lower end connects to the bottom rail. When the screen is on the bottom rail, it is in the set position for normal operation of the prefabricated pumping station. The prefabricated pumping station provided by this invention improves the maintenance structure of the screen, offering advantages such as simple structure and quick maintenance, and reducing the entry of large particles into the pumping station during operation and maintenance.

Description

Technical Field

[0001] This invention belongs to the technical field of municipal drainage equipment and relates to a prefabricated pumping station. Background Technology

[0002] Prefabricated pumping stations are mainly used for the collection and discharge of rainwater and sewage, playing a vital role in urban municipal drainage systems. A grating is an essential component of a prefabricated pumping station. Basket grates are used to pre-treat the incoming water, intercepting large particles of debris in the sewage to prevent the pumps from being clogged and stuck, thus ensuring the safe and reliable operation of the pumping station. Basket grates require regular manual cleaning. For existing basket grates, there are generally two types of maintenance structures:

[0003] First, refer to the appendix Figure 1 An additional guide rail is added between the screen and the inlet to allow the baffle plate to slide up and down. The drawback is that there will be a gap of at least 60mm between the screen and the inlet. During normal operation of the pump station, large particles in the incoming water may not be completely filtered through the screen and may enter the pump station directly through the gap. This can cause the pump inlet to become clogged due to the intake of large particles, leading to frequent pump repairs or even pump burnout.

[0004] Secondly, refer to the appendix. Figure 2 The grating and the baffle plate share the same guide rail. Its drawbacks are: during maintenance, the grating needs to be removed first, and then the baffle plate placed back in along the guide rail. This process takes too long, and a small amount of large particles may enter the pumping station. Additionally, when the pumping station is running normally, the baffle plate must be placed separately; if placed on the guide rail, it needs to be removed first during maintenance. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a prefabricated pumping station with an improved grating maintenance structure. It features a simple structure and quick maintenance, reducing the entry of large particles into the pumping station during operation and maintenance.

[0006] To solve the above-mentioned technical problems, the objective of this invention is achieved through the following technical solution:

[0007] A prefabricated pumping station includes a cylinder and a control cabinet. The cylinder has an inlet on one side and an outlet connected to a water pump on the other side. A grating is installed at the inlet, sliding on two sets of parallel guide rails. Each guide rail includes a top rail, a bottom rail, a sliding rail, and an upward rail. The top and bottom rails are vertically aligned and centered. The sliding and upward rails are spaced apart horizontally. The upper end of the sliding rail connects to the top rail, and the lower end connects to the bottom rail. The upper end of the upward rail connects to the top rail, and the lower end connects to the bottom rail. When the grating is on the bottom rail, it is in a pre-set position for normal operation of the prefabricated pumping station.

[0008] In the aforementioned prefabricated pumping station, the upper end of the sliding track is connected to the top track via a first sliding connecting track, and the lower end is connected to the bottom track via a second sliding connecting track; the upper end of the lifting track is connected to the top track via a first lifting connecting track, and the lower end is connected to the bottom track via a second lifting connecting track.

[0009] In the aforementioned prefabricated pumping station, the first sliding connecting track, the second sliding connecting track, the first lifting connecting track, and the second lifting connecting track are all inclined; the sliding track and the lifting track are both vertically arranged. Preferably, the end connections of the first sliding connecting track, the second sliding connecting track, the first lifting connecting track, and the second lifting connecting track can be configured as arc-shaped structures.

[0010] In one of the prefabricated pumping stations described above, the top track extends downward to form a sliding guide track, and the upper end of the first sliding connecting track is connected to the lower end of the sliding guide track; the bottom track extends upward to form an lifting guide track, and the second lifting connecting track is connected to the upper end of the lifting guide track.

[0011] In one type of prefabricated pumping station described above, the guide rail is integrally welded from channel steel, and a through-groove is formed on the inner side of the guide rail. The grid is equipped with several sliders, rollers, or cylinders that slide in conjunction with the through-groove. Preferably, the welding position of the guide rail is on the outer side of the guide rail, and the welding point is simultaneously treated with anti-corrosion measures.

[0012] In one of the aforementioned prefabricated pumping stations, a spare component is also slidably mounted on the guide rail. When the spare component is in standby mode, it is temporarily placed on the lowering track. When the spare component and the grid slide on the lowering track and the lifting track respectively, a gap is left between the spare component and the grid.

[0013] In one of the aforementioned prefabricated pumping stations, the backup component is a backup grille or a flow cut-off plate.

[0014] In one of the aforementioned prefabricated pumping stations, a hanging device is provided on the lifting track, and the grid can be temporarily hung on the hanging device after it is lifted. The hanging device can be a hook, lock, or support rod, or other mechanism that allows the grid to be suspended inside the cylinder.

[0015] In one of the aforementioned prefabricated pumping stations, the backup component is a backup screen. The backup screen and the original screen are connected to the same guide chain, which is driven reciprocating by a power unit. The screen is equipped with a sensor to detect its weight, and the sensor and the power unit are electrically connected to a control cabinet. Further, the power unit is a motor, with a reel sleeved on its output shaft. The guide chain is wound around the reel. When the motor rotates, one end of the guide chain moves upward and the other end moves downward. One end of the guide chain is connected to the original screen, and the other end is connected to the backup screen.

[0016] This invention also provides a method for the maintenance of prefabricated pumping stations:

[0017] (1) Connect the grid and the spare grid to the two ends of the same guide chain. The guide chain can be driven by a motor to rise at one end and fall at the other end. In the initial state, the grid is set on the bottom track for normal use by the prefabricated pump station, and the spare grid is set on the sliding track. At the same time, the gravity state of the grid is monitored by a sensor.

[0018] (2) When the transmission device detects that the gravity of the grid reaches the critical value, it transmits data to the control cabinet, the control cabinet starts the motor, the motor drives the guide chain to rise at one end connected to the grid and descend at the other end connected to the spare grid. The grid rises from the bottom track to the lifting track under the drive of the motor, and the spare grid slides down to the bottom track under its own gravity for normal use of the prefabricated pump station.

[0019] (3) After manually inspecting and repairing the grille, restore each component to its initial state.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This invention provides a prefabricated pumping station, which redesigns the structure of the grid guide rail, changing the traditional single guide rail or parallel double guide rail to a bidirectional switching guide rail. By sliding down the lower guide rail and lifting the upper guide rail, it can be used for the up and down sliding of two grids or the sliding of one grid and one interception plate at the same time, so as to carry out rapid maintenance. At the same time, the upper and lower ends of the lower guide rail and the upper guide rail converge at the same position. At the top, the grid / interceptor plate can be lifted and lowered at the same position. At the bottom, it can ensure that there is no gap between the grid / interceptor plate and the water inlet, preventing large particles from directly entering the pumping station through the gap during normal operation.

[0022] 2. The present invention further optimizes the guide rail structure by setting a downward guide rail and an upward guide rail. When the grid / interceptor plate is placed from the upper end of the guide rail, the grid / interceptor plate will automatically be guided to the downward guide rail and fall into the set position of the bottom rail; when the grid / interceptor plate is lifted from the lower end of the guide rail, the grid / interceptor plate will automatically be guided to the upward guide rail.

[0023] 3. By adding sensors, guide chains, and a power device to drive the guide chains, this invention can achieve one-time automatic replacement of the grid, giving maintenance personnel enough time. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of an existing double-rail prefabricated pumping station;

[0025] Figure 2 This is a structural schematic diagram of an existing single-rail prefabricated pumping station;

[0026] Figure 3 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0028] Figure 5 This is a schematic diagram of the guide rail structure of the present invention;

[0029] Reference numerals: 1. Cylinder; 2. Inlet; 3. Pump; 4. Outlet; 5. Grille; 5a. Spare component; 6. Guide rail; 61. Top rail; 611. Sliding guide rail; 62. Bottom rail; 621. Lifting guide rail; 63. Sliding rail; 631. First sliding connecting rail; 632. Second sliding connecting rail; 64. Lifting rail; 641. First lifting connecting rail; 642. Second lifting connecting rail. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 3-5 :

[0031] Example 1

[0032] A prefabricated pumping station includes a cylindrical body 1 and a control cabinet. The cylindrical body 1 has an inlet 2 on one side and an outlet 4 connected to a water pump 3 on the other side. A grille 5 is installed at the inlet 2, and the grille 5 slides on two sets of parallel guide rails 6. The guide rails 6 include a downward guide rail and an upward guide rail, wherein:

[0033] Comparison Appendix Figure 5The sliding guide rail is composed of the following rail segments connected in sequence: top rail 61, sliding guide rail 611, first sliding connecting rail 631, sliding rail 63, second sliding connecting rail 632 and bottom rail 62.

[0034] Comparison Appendix Figure 5 The lifting guide rail is composed of the following rail segments connected in sequence: top rail 61, first lifting connecting rail 641, lifting rail 64, second lifting connecting rail 642, lifting guide rail 621 and bottom rail 62.

[0035] The top rail 61 and bottom rail 62 shared by the sliding guide rail and the lifting guide rail are vertically arranged; the first sliding connecting rail 631, the second sliding connecting rail 632, the first lifting connecting rail 641, and the second lifting connecting rail 642 are all inclined; the sliding rail 63 and the lifting rail 62 are both vertical and spaced apart; the sliding guide rail 611 extends downward from the top rail 61; and the lifting guide rail 621 extends upward from the bottom rail 62.

[0036] Comparison Appendix Figure 3 In this embodiment, a grid 5 and a spare component 5a are slidably mounted on the guide rail 6. The spare component 5a is a spare grid. When the grid 5 needs maintenance, it is lifted up along the upward guide rail using a tool, while the spare grid slides down along the downward guide rail. When the grid 5 and the spare grid intersect, there is a certain gap between them. After the grid 5 is lifted, the spare grid slides directly into place, thereby reducing replacement time and space required for the spare grid. It also minimizes maintenance during water ingress, preventing large particles from entering the pump station.

[0037] The process of lifting the grille 5 is as follows: the grille 5 slides upward along the bottom track 62 under the drive of external force. Since the lifting guide track 621 and the bottom track 62 are in the same vertical direction, while the second sliding connecting track 632 is in the inclined direction, the grille 5 will directly enter the lifting guide track 621 and will not enter the second sliding connecting track 632. The grille 5 that has entered the lifting guide track 621 continues to move upward along the track, and after passing through the second lifting connecting track 642, the lifting track 64, the first lifting connecting track 641 and the top track 61 in sequence, it moves out of the guide rail 6.

[0038] The process of the spare grid 5 sliding down is as follows: The spare grid enters the guide rail 6 from the top rail 61 and slides down along the top rail 61 under its own gravity. Since the sliding guide rail 611 and the top rail 61 are in the same vertical direction, while the first lifting connecting rail 641 is in the inclined direction, the spare grid will directly enter the sliding guide rail 611 and will not enter the first lifting connecting rail 641. The spare grid that enters the sliding guide rail 611 continues to move down along the rail, passing through the first sliding connecting rail 631, the sliding rail 63, and the second sliding connecting rail 632 in sequence, and enters the bottom rail 62. Finally, it moves to the original position of the grid 5 for filtration during normal operation of the prefabricated pumping station.

[0039] In this embodiment, the guide rail 6 is integrally welded from channel steel. A through-groove is formed on the inner side of the guide rail 6. The grille 5 is provided with several sliders, rollers, or columns that slide in conjunction with the groove. During sliding, the grille 5 slides along the groove via the sliders. Preferably, the welding position of the guide rail 6 is on the outer side of the guide rail 6, and the welding point is simultaneously treated with anti-corrosion measures.

[0040] The aforementioned spare grille is temporarily placed on the sliding track 63 when in standby mode, which not only saves space, but also makes it more convenient for maintenance as the spare grille can be directly slid into the set position from the sliding track 63.

[0041] The aforementioned lifting track 64 is equipped with a hanging device, on which the grid 5 can be temporarily hung after being lifted. The hanging device can be a hook, lock, or support rod, etc., that allows the grid 5 to be suspended inside the cylinder 1. When the impurities in the basket grid 5 contain too much water, and the wastewater contained therein may affect the pump station's ground environment after being pulled out of the cylinder 1, or when there is nowhere else to dump the wastewater, it can be directly hung on the lifting track 64. The dry waste can be dumped and disposed of after the water content has been basically filtered out or during the next maintenance.

[0042] The aforementioned grid 5 and the spare grid are connected to the same guide chain, which is driven by a power unit to move back and forth. A sensor for detecting the weight of the grid 5 is installed on the grid 5, and the sensor and the power unit are electrically connected to the control cabinet. Furthermore, the power unit is a motor, and a reel is sleeved on the output shaft of the motor. The guide chain is wound around the reel. When the motor rotates, one end of the guide chain moves upward and the other end moves downward. One end of the guide chain is connected to the grid 5, and the other end is connected to the spare grid 5.

[0043] The above structure enables one-time automatic replacement of grille 5. The method is as follows:

[0044] (1) Connect the grid 5 and the spare grid to the two ends of the same guide chain. The guide chain can be driven by a motor to rise at one end and fall at the other end. In the initial state, the grid 5 is set on the bottom track 62 for normal use of the prefabricated pump station, and the spare grid is set on the sliding track 63. At the same time, the gravity state of the grid 5 is monitored by a sensor.

[0045] (2) When the transmission device detects that the gravity of the grid 5 reaches the critical value, it transmits data to the control cabinet, the control cabinet starts the motor, the motor drives the guide chain to rise at one end connected to the grid 5 and descend at the other end connected to the spare grid. Under the drive of the motor, the grid 5 rises from the bottom track 62 to the upper track 64, and the spare grid 5 slides down to the bottom track 62 under its own gravity for normal use of the prefabricated pump station.

[0046] (3) After manually inspecting and repairing the grille 5, restore each component to its initial state.

[0047] Example 2

[0048] Comparison Appendix Figure 4 In Embodiment 2, the structure of the guide rail 6 is the same as that in Embodiment 1, but its spare component 5a is a flow cutter. Its usage is also similar to that in Embodiment 1: when maintenance is required, the grille 5 is lifted, the flow cutter is lowered to cut off the flow, and after maintenance is completed, it is reset.

[0049] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated pumping station, comprising a cylinder (1) and a control cabinet, wherein an inlet (2) is provided on one side of the cylinder (1) and an outlet (4) connected to a water pump (3) is provided on the other side, and a grating (5) is provided at the inlet (2), the grating (5) sliding on two sets of parallel guide rails (6), characterized in that, The guide rail (6) includes a top rail (61), a bottom rail (62), a downward rail (63), and an upward rail (64). The top rail (61) and the bottom rail (62) are vertically arranged in the center. The downward rail (63) and the upward rail (64) are spaced apart on the left and right. The upper end of the downward rail (63) is connected to the top rail (61) and the lower end is connected to the bottom rail (62). The upper end of the upward rail (64) is connected to the top rail (61) and the lower end is connected to the bottom rail (62). When the grid (5) is located on the bottom rail (62), it is in the set position when the prefabricated pump station is running normally. The upper end of the sliding track (63) is connected to the top track (61) via the first sliding connecting track (631), and the lower end is connected to the bottom track (62) via the second sliding connecting track (632); the upper end of the lifting track (64) is connected to the top track (61) via the first lifting connecting track (641), and the lower end is connected to the bottom track (62) via the second lifting connecting track (642); The first sliding connecting track (631), the second sliding connecting track (632), the first lifting connecting track (641), and the second lifting connecting track (642) are all inclined; the sliding track (63) and the lifting track (64) are both vertical. The top track (61) extends downward to form a sliding guide track (611), and the upper end of the first sliding connecting track (631) is connected to the lower end of the sliding guide track (611); the bottom track (62) extends upward to form an upward guide track (621), and the second upward connecting track (642) is connected to the upper end of the upward guide track (621). A spare component (5a) is also slidably disposed on the guide rail (6). When the spare component (5a) is in standby state, it is temporarily placed on the lowering rail (63). When the spare component (5a) and the grid (5) slide on the lowering rail (63) and the lifting rail (64) respectively, there is a gap between the spare component (5a) and the grid (5).

2. A prefabricated pumping station according to claim 1, characterized in that, The guide rail (6) is formed by welding channel steel. A sliding groove is formed on the inner side of the guide rail (6) that runs through the top and bottom. The grid (5) is provided with a number of sliders, rollers or columns that slide in cooperation with the sliding groove.

3. A prefabricated pumping station according to claim 1, characterized in that, The backup component (5a) is a backup grille or a cutoff plate.

4. A prefabricated pumping station according to claim 3, characterized in that, The backup component (5a) is a backup grille. The grille (5) and the backup grille are connected to the same guide chain. The guide chain is driven to move by a power device. The grille is equipped with a sensor to detect the weight of the grille. The sensor and the power device are electrically connected to the control cabinet.

5. A prefabricated pumping station according to claim 1, characterized in that, The lifting track (64) is equipped with a hanging device, and the grille (5) can be temporarily hung on the hanging device after it is lifted.

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