Riverbed buried pump station

Abstract

The utility model discloses a riverbed buried pump station which comprises a box body, a water outlet pipe and a water inlet pipe are arranged on the side wall of the box body, a water pumping assembly is arranged in the box body, and the water outlet pipe is connected with the water pumping assembly. The box body is arranged in a riverbed and fixedly connected with bed rock at the bottom of the riverbed, and the water inlet pipe is located above the riverbed. The riverbed buried pump station solves the technical problem that a pump station in the prior art is difficult to be suitable for large changes of the water level of a river channel.

Description

Technical Field

[0001] This utility model belongs to the technical field of water intake pumping stations for water conservancy projects, and specifically relates to a riverbed buried pumping station. Background Technology

[0002] River intake pumping stations are widely used in water conservancy projects. They are structures that lift river water from a lower elevation to a higher one. River water levels often fluctuate, and pumping stations need to adapt to different water level conditions. When the river water level fluctuates significantly, various types of pumping stations can be used, such as dry-chamber pumping stations, floating pumping stations, cable car pumping stations, and bank-mounted submersible pumping stations. Dry-chamber pumping stations and bank-mounted submersible pumping stations are large structures, occupying a significant area of ​​the river channel and riverbank slopes. This can impact the stability of riverbank embankments, flood control, and the riverside landscape, and also has a long construction period. Floating-chamber and cable car pumping stations are mostly used for larger water intake scales. They are less economical for smaller water intake scales, and the large size of the pumping vessels and cable cars also affects the riverside landscape.

[0003] Chinese utility model patent authorization announcement No. CN211665851U discloses a buried pumping station for water conservancy projects, including a housing, an inlet, a base, an electrical conduit, and a water pump. The housing is fixedly installed on the top of the base, and a top cover is installed on the top of the housing. An inspection platform is provided inside the housing, and stairs are distributed inside. A base plate is installed at the bottom of the housing, and two sets of water pumps are installed on the top of the base plate via pump seats. An outlet is installed on one side of each water pump, and a water delivery pipe is installed on the top of the outlet. An electrical conduit is installed on one side of the housing, and the interior of the electrical conduit is connected to the water pump through a cable plate protection pipe. This buried pumping station is installed on conventional ground and is difficult to adapt to large fluctuations in river water levels. Utility Model Content

[0004] In view of the existing technical problems, this utility model aims to provide a riverbed buried pumping station, which can solve the technical problem that existing pumping stations are difficult to adapt to large changes in river water level.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A riverbed buried pumping station includes a box body, characterized by: an outlet pipe and an inlet pipe on the side wall of the box body, a pumping assembly inside the box body, and the outlet pipe connected to the pumping assembly; the box body is located in the riverbed and is fixedly connected to the bedrock at the bottom of the riverbed, with the inlet pipe located above the riverbed.

[0007] This application discloses a riverbed-buried pumping station, in which the tank body is buried in the riverbed, with the top of the tank body exposed above the riverbed. Water is drawn into the river through an inlet pipe on the side wall of the tank body, and pumped out through a pumping assembly and an outlet pipe, allowing for normal water intake under different water levels. This utility model's riverbed-buried pumping station integrates the inlet and outlet pipes and the pumping assembly into the tank body, reducing the footprint, saving space and investment, shortening the construction period, and facilitating construction. Furthermore, since the tank body is buried in the riverbed, it occupies a small section of the river channel for flood control, minimizing its impact on flood discharge. The tank body is permanently submerged underwater, not affecting the riverside landscape, and it allows for normal water intake under different water levels.

[0008] Preferably, the bottom of the box body is provided with a bottom plate, which is anchored to the bedrock at the bottom of the riverbed by multiple anchor bars. By setting the bottom plate and anchor bars, the pull-out resistance of the box body is strengthened, ensuring anti-buoyancy safety.

[0009] Preferably, the thickness of the base plate is H, where 40cm≤H≤80cm.

[0010] Specifically, the bottom of the box is provided with a base, which is fixedly connected to the base plate by anchor bolts.

[0011] Preferably, the box body is set in a foundation pit in the riverbed, with the top of the box body protruding from the riverbed; backfill concrete is laid on the lower outer side of the box body, with the top of the backfill concrete located above the base; backfill sand is laid on top of the backfill concrete, with the top of the backfill sand flush with the riverbed. The lower part of the foundation pit is backfilled with concrete to enclose the base and anchor bolts, while the upper part of the foundation pit is backfilled with backfill sand to ensure the anti-buoyancy stability of the box body.

[0012] Preferably, the base plate is made of reinforced concrete, and the anchor bolts are pre-embedded in the base plate.

[0013] Preferably, the inlet pipe is provided with a grille, a filter screen, and a second valve in sequence from the outer end to the inner side, and the aperture of the filter screen is smaller than that of the grille. By setting up the grille to intercept large floating and suspended particles in the water, and setting up the filter screen to intercept small floating and suspended particles in the water, blockage of the inlet pipe is prevented.

[0014] Preferably, the second valve is located inside the housing, and its stem extends outward through the top cover of the housing. This allows the second valve to be operated from outside the housing, increasing ease of operation.

[0015] Preferably, the box body is a cylindrical structure with a height of not less than 5m; the water inlet pipe is located on the upper part of the side wall of the box body, with the outer end of the water inlet pipe facing away from the riverbank. The lower part of the box body is buried in the riverbed, while the top is exposed above the riverbed, thus occupying a small section of the river channel for flood discharge and having little impact on the safety of flood discharge.

[0016] Preferably, the pumping assembly includes a submersible pump and a pressure pipe connected to the outlet of the submersible pump, and a first valve is provided on the pressure pipe; the submersible pump is located at the bottom of the housing, the pressure pipe is vertically arranged, and the end of the pressure pipe is connected to the outlet pipe; preferably, a maintenance platform is provided on the inner side wall of the housing, the first valve is located above the maintenance platform, and a vertical ladder is provided on the maintenance platform, with the top of the ladder close to the top of the housing.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. The riverbed buried pumping station of this utility model has inlet and outlet pipes and pumping components all concentrated in the box body, which is an integrated arrangement, reducing the footprint, saving space and investment, and has a short construction period and is more convenient to construct.

[0019] 2. The riverbed buried pumping station of this utility model has its box body buried in the riverbed, which occupies a small section of the river channel for flood discharge and has little impact on the flood discharge of the river channel. Moreover, the box body is submerged underwater for a long time, which does not affect the riverside landscape and can draw water normally under different water levels.

[0020] 3. The riverbed buried pump station of this utility model has a box body placed on a reinforced concrete anti-buoyancy bottom plate and fixedly connected to the bottom plate by anchor bolts. Anchor bars are embedded in the bottom plate to enhance pull-out resistance and ensure anti-buoyancy safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the underground pumping station structure in the riverbed according to this utility model.

[0022] In the figure

[0023] 1-Anchor bar; 2-Base plate; 3-Anchor bolt; 4-Box body; 5-Pumping assembly; 501-Submersible pump; 502-Pressure pipeline; 503-First valve; 6-Riverbed; 7-Base; 8-Outlet pipe; 9-Backfill concrete; 10-Backfill sand; 11-Inlet pipe; 12-Grate; 13-Filter screen; 14-Second valve; 15-Maintenance platform; 16-Ladder. Detailed Implementation

[0024] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0025] like Figure 1As shown, this embodiment provides a riverbed buried pumping station including a housing 4. The housing 4 has an outlet pipe 8 and an inlet pipe 11 on its side wall. A pumping assembly 5 is installed inside the housing 4, and the outlet pipe 8 is connected to the pumping assembly 5. The housing 4 is a cylindrical structure, with its lower part buried in the riverbed 6 and its top protruding from the riverbed 6. The inlet pipe 11 is located at the top of the housing 4, above the riverbed 6. A foundation pit is set inside the riverbed 6, and a base plate 2 is set at the bottom of the pit. The base plate 2 is made of reinforced concrete and has a thickness of 40cm. Anchor bolts 3 are pre-embedded in the base plate 2, and the base plate 2 is anchored to the bedrock at the bottom of the riverbed 6 by multiple anchor bars 1. A base 7 is provided at the bottom of the housing 4, and the base 7 is fixedly connected to the base plate 2 by the pre-embedded anchor bolts 3. Backfill concrete 9 is installed in the foundation pit on the lower outer side of the box body 4. The top of the backfill concrete 9 is located above the base 7, thus covering the anchor bolts 3. Backfill sand 10 is installed on top of the backfill concrete 9 to backfill the foundation pit. The top of the backfill sand 10 is flush with the riverbed 6, thus ensuring the anti-buoyancy stability of the box body 4. The outer end of the water inlet pipe 11 faces away from the riverbank. From the outer end to the inner side, the water inlet pipe 11 is provided with a circular grille 12, a circular filter screen 13, and a second valve 14. The aperture of the filter screen 13 is smaller than that of the grille 12. The grille 12 is welded to the water inlet pipe 11. The filter screen 13 is made of stainless steel. The second valve 14 is a long-shaft butterfly valve. The second valve 14 is located inside the box body 4, and the valve stem of the second valve 14 extends outward through the top cover of the box body 4. The pumping assembly 5 includes a submersible pump 501 and a pressure pipe 502 connected to the outlet of the submersible pump 501. A first valve 503, which is a gate valve, is installed on the pressure pipe 502. The submersible pump 501 is located at the bottom of the housing 4, and the pressure pipe 502 is vertically oriented, with its end connected to the outlet pipe 8. A maintenance platform 15 is located on the inner wall of the housing 4. The first valve 503 is positioned above the maintenance platform 15, and a vertical ladder 16 is installed on the maintenance platform 15, with the top of the ladder 16 close to the top of the housing 4.

[0026] The specific implementation steps of the underground pumping station in the riverbed in this embodiment are as follows:

[0027] S1, Excavation of the foundation pit

[0028] The bottom elevation and dimensions of the foundation pit are determined based on the dimensions of the box body 4 and the height of the exposed top. The slope ratio of the foundation pit is determined based on factors such as the geological conditions of the riverbed 6.

[0029] S2, Anchor bar 1 installation

[0030] Drill holes in the bedrock at the bottom of the pit, embed anchor bars 1, and fix them with grout. The drilling and anchor bar depth is 4m, and 0.5m of anchor bars are reserved outside the holes to facilitate embedding in the bottom plate 2.

[0031] S3, Casting anti-buoyancy base plate 2

[0032] First, tie the anti-buoyancy bottom plate reinforcement, including anchor bars 1, pre-embedded anchor bolts 3 and other related components, and then pour C30 concrete, with the bottom plate 2 being 40cm thick.

[0033] S4, enclosure 4 installation

[0034] Place the base 7 of the tank 4 on the base plate 2, so that the tank 4 is located in the center of the base plate 2, and adjust the tank 4 so that the reserved water inlet on the tank 4 faces away from the riverbank. Install the anchor bolts 3 around the bottom to fix the tank 4 to the base plate 2.

[0035] 5. Backfilling of the foundation pit

[0036] Backfill around box 4 and inside the foundation pit. C25 concrete is used for backfilling at the bottom. Backfill concrete 9 covers the anchor bolts 3. Backfill sand 10 is used for backfilling and compaction in the middle and upper parts.

[0037] 6. Installation of water inlet pipe 8

[0038] Install a water inlet steel pipe at the water inlet reserved at the top of the box 4. From the direction of water flow, a circular welded steel grating 12, a circular stainless steel wire filter screen 13, and a long shaft butterfly valve are installed on the steel pipe in sequence.

[0039] 7. Installation of pumping assembly 5

[0040] Components such as submersible pump 501, pressure pipeline 502, gate valve, and outlet pipe 8 are installed inside the housing 4.

[0041] This embodiment of the riverbed-buried pumping station involves burying the casing 4 within the riverbed 6, with the top of the casing 4 protruding from the riverbed 6. Water is drawn into the river through the inlet pipe 11 on the top side wall of the casing 4, and pumped out through the pumping assembly 5 and the outlet pipe 8. Water can be drawn normally under different water levels, while occupying a very small area of ​​the river's flood discharge cross-section, thus having minimal impact on the safety of river flood discharge. In addition, the casing 4 is placed on a reinforced concrete anti-buoyancy base plate 2 and is fixedly connected to the base plate 2 by anchor bolts 3. Anchor bars 1 are embedded in the base plate 2 to enhance pull-out resistance and ensure anti-buoyancy safety.

[0042] The above embodiments should be understood as being used only to illustrate the utility model more clearly, and not to limit the scope of the utility model. After reading this utility model, any modifications of the embodiments by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. A riverbed buried pumping station, comprising a housing (4), characterized in that: The box (4) is provided with an outlet pipe (8) and an inlet pipe (11) on its side wall. A pumping assembly (5) is installed inside the box (4). The outlet pipe (8) is connected to the pumping assembly (5). The box (4) is set in the riverbed (6). The box (4) is fixedly connected to the bedrock at the bottom of the riverbed (6). The inlet pipe (11) is located above the riverbed (6).

2. The riverbed buried pumping station according to claim 1, characterized in that: The bottom of the box (4) is provided with a bottom plate (2), which is anchored to the bedrock at the bottom of the riverbed (6) by multiple anchor bars (1).

3. The riverbed buried pumping station according to claim 2, characterized in that: The thickness of the base plate (2) is H, 40cm≤H≤80cm.

4. The riverbed buried pumping station according to claim 2, characterized in that: The bottom of the box (4) is provided with a base (7), which is fixedly connected to the bottom plate (2) by anchor bolts (3).

5. The riverbed buried pumping station according to claim 4, characterized in that: The box body (4) is set in the foundation pit of the riverbed (6), and the top of the box body (4) protrudes from the riverbed (6); backfill concrete (9) is set on the lower outer side of the box body (4), and the top of the backfill concrete (9) is located above the base (7); backfill sand (10) is set above the backfill concrete (9), and the top of the backfill sand (10) is flush with the riverbed (6).

6. The riverbed buried pumping station according to claim 4, characterized in that: The base plate (2) is made of reinforced concrete, and the anchor bolts (3) are embedded in the base plate (2).

7. The riverbed buried pumping station according to claim 1, characterized in that: The water inlet pipe (11) is provided with a grille (12), a filter screen (13) and a second valve (14) in sequence from the outer end to the inner side. The aperture of the filter screen (13) is smaller than that of the grille (12).

8. The riverbed buried pumping station according to claim 7, characterized in that: The second valve (14) is located inside the housing (4), and the valve stem of the second valve (14) extends outward through the top cover of the housing (4).

9. The riverbed buried pumping station according to any one of claims 1 to 8, characterized in that: The box (4) is a cylindrical structure with a height of not less than 5m; the water inlet pipe (11) is located on the upper part of the side wall of the box (4), and the outer end of the water inlet pipe (11) faces away from the riverbank.

10. The riverbed buried pumping station according to any one of claims 1 to 8, characterized in that: The pumping assembly (5) includes a submersible pump (501) and a pressure pipe (502) connected to the outlet of the submersible pump (501). A first valve (503) is provided on the pressure pipe (502). The submersible pump (501) is located at the bottom of the housing (4). The pressure pipe (502) is vertically arranged and its end is connected to the outlet pipe (8). A maintenance platform (15) is provided on the inner wall of the housing (4). The first valve (503) is located above the maintenance platform (15). A vertical ladder (16) is provided on the maintenance platform (15). The top of the ladder (16) is close to the top of the housing (4).

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