Self-discharging and machine-discharging combined pump station structure

Abstract

The utility model relates to a pump station structure combining self-discharging and mechanical discharging. The pump station structure comprises a pump chamber section, a pressure section and a water outlet tank which are communicated in sequence, the pump chamber section comprises machine drainage water inlet single pools arranged on the two sides respectively, pump chambers are arranged in the machine drainage water inlet single pools, axial flow pumps are arranged in the pump chambers, and self-drainage water inlet single pools are arranged between the machine drainage water inlet single pools on the two sides; the pump chamber is connected with one end of a pump station water outlet pipe, and the other end of the pump station water outlet pipe is connected with a water outlet pool; the self-discharging water inlet single pool is communicated with the self-discharging water tank culvert, the self-discharging water tank culvert is communicated with one end of the self-discharging water lock chamber, and the other end of the self-discharging water lock chamber is located in the water outlet pool and communicated with the water outlet pool. The utility model solves the problem of flood drainage, has better water inlet and outlet conditions, obtains higher device efficiency, is compact in arrangement, and saves the engineering quantity and the engineering investment.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy pumping station technology, and in particular to a pumping station structure that combines self-drainage and mechanical drainage. Background Technology

[0002] Flood storage and detention areas serve as temporary flood storage sites and are an important measure to improve the flood control capacity of a river basin. Normally, these areas are the living and production bases of local residents. In the event of a major flood, to protect the safety of residents within the flood storage and detention areas, safe zones are typically constructed within these areas as refuge sites.

[0003] To achieve rainwater drainage from the safe zone, it is necessary to construct a new drainage pumping station that meets both gravity flow and flood discharge requirements. Various types of pumping stations exist, including double-layered and separately arranged gravity-flow and mechanical drainage channels. The challenge lies in designing a pumping station that integrates gravity flow and mechanical drainage, ensuring good inlet and outlet conditions, high system efficiency, compact layout, reduced engineering workload and investment, and ease of operation and management. Effectively utilizing existing space to design a gravity-flow and mechanical drainage integrated pumping station is a pressing issue.

[0004] Chinese patent CN219527863U discloses a high-efficiency anti-turbulence drainage pump station channel. Following the direction of water flow from the pump station's inlet to outlet, the channel is sequentially equipped with a columnar curved surface partition wall, a gradually expanding diversion channel, a radial partition wall, a sloping gradually expanding channel, a rectangular perforated flow-stabilizing barrier wall, a collection tank, and an outlet tank. The columnar curved surface partition wall is used to divert the incoming water flow initially, after which each stream flows into the gradually expanding diversion channel. The radial partition wall is installed within the gradually expanding diversion channel to separate the various streams of water. The system undergoes a secondary diversion, with each stream flowing through the sloping, gradually widening channel to the collection tank. A rectangular perforated flow-stabilizing barrier is positioned between the sloping, gradually widening channel and the collection tank. The collection tank contains a gravity-fed drainage channel and a pumping-driven drainage channel, both connected to the outlet tank. A controllable sluice gate is installed between the gravity-fed drainage channel and the outlet tank. An axial flow pump is installed within the pumping-driven drainage channel. The outlet tank is equipped with a sluice gate for drainage. Without both gravity-fed and mechanically driven drainage channels, the system cannot simultaneously meet the requirements of gravity flow and flood discharge. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a pumping station structure that combines gravity flow and mechanical drainage, which simultaneously meets the requirements of gravity flow and mechanical drainage during floods, solves the problem of flood control, has good inlet and outlet conditions, achieves high device efficiency, and has a compact layout, saving engineering workload and investment.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A pump station structure combining self-draining and mechanical drainage includes a pump chamber section, a pressure section, and an outlet pool connected in sequence.

[0008] The pump chamber section includes a single inlet pool for machine discharge water supply located on both sides. A pump chamber is installed in the single inlet pool for machine discharge water supply, and an axial flow pump is installed in the pump chamber. A self-draining inlet pool is located between the single inlet pools for machine discharge water supply on both sides.

[0009] The pump room is connected to one end of the pump station's outlet pipe, and the other end of the pump station's outlet pipe is connected to the outlet pool.

[0010] The self-draining inlet pool is connected to the self-draining outlet culvert, the self-draining outlet culvert is connected to one end of the self-draining outlet gate chamber, and the other end of the self-draining outlet gate chamber is located in the outlet pool and connected to the outlet pool.

[0011] Preferably, the two sides of the single inlet pool of the machine discharge are respectively provided with a side pier and a middle pier of the inlet pool at the end away from the pressure section, and the side pier of the inlet pool is located outside the middle pier of the inlet pool.

[0012] The machine discharge water inlet pools on both sides are also provided with machine discharge water inlet pools. The machine discharge water inlet pools on both sides away from the pressure section are provided with water inlet pool piers.

[0013] The self-draining inlet pool has piers on both sides of the end furthest from the pressure section.

[0014] Preferably, the outer side of the outlet pool is the outlet pool wall, and the outlet pool wall is provided with an outlet pool drain hole on the side away from the pressure section.

[0015] Preferably, the pump station outlet pipe is composed of a plastic-coated steel pipe with two 45° bends. The two ends of the plastic-coated steel pipe are connected to the pump room and the outlet pool respectively, and a rigid wing ring is used for water sealing. The connection is coated with polyester sealant.

[0016] Preferably, there are a total of 4 machine-discharged water inlet pools, with 2 on each side, and a total of 2 self-discharged water inlet pools.

[0017] Preferably, two adjacent machine-discharge inlet pools share a central pier in the inlet pool, adjacent machine-discharge inlet pools and self-discharge inlet pools share a central pier in the inlet pool, adjacent self-discharge inlet pools share a central pier in the inlet pool, a total of 2 side piers are provided in the inlet pool, and a total of 5 central piers are provided in the inlet pool.

[0018] Preferably, there are two self-draining culverts and two self-draining gate chambers, each of the self-draining inlet pools is connected to one self-draining culvert, and each self-draining culvert is connected to one self-draining gate chamber.

[0019] Preferably, the water outlet pool has two drainage holes, and the wall thickness of the water outlet pool gradually decreases from the bottom to the top.

[0020] The beneficial effects of this utility model are:

[0021] When the water level in the area is higher than that of the outer river, floodwater flows through a self-draining inlet pool into an outlet pool and is discharged into the corresponding river channel. If the water level in the safe zone is lower than that of the outer river, floodwater flows through a mechanically operated inlet pool into an outlet pool and is discharged to the outside of the safe zone embankment. This invention solves the flood drainage problem by providing good inlet and outlet conditions, achieving high device efficiency, and having a compact layout, thus saving on engineering work and investment. Attached Figure Description

[0022] Figure 1 This is a plan view of the pump station described in this utility model.

[0023] Figure 2 This is a cross-sectional view of the pump station's exhaust system as described in this utility model.

[0024] Figure 3 This is a cross-sectional view of the self-draining pump station described in this utility model.

[0025] The attached diagram illustrates the following: 1-Inlet pool of the machine-discharged water tank, 2-Outlet pipe of the pump station, 3-Side pier of the inlet pool, 4-Middle pier of the inlet pool, 5-Self-discharged inlet pool, 6-Self-discharged outlet culvert, 7-Self-discharged outlet gate chamber, 8-Outlet pool, 9-Outlet pool wall, 10-Outlet pool drain hole, 11-Pump room. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] like Figures 1-2As shown, the pump station structure combining self-drainage and mechanical drainage of this utility model includes a mechanical drainage inlet pool 1, a pump station outlet pipe 2, an inlet pool side pier 3, a self-drainage inlet pool 5, a self-drainage outlet culvert 6, a self-drainage outlet gate chamber 7, an outlet pool 8, an outlet pool wall 9, an outlet pool drainage hole 10, and a pump room 11.

[0029] In practical applications, the number and width of the single inlet pool 1 can be determined according to the flow rate. In a preferred embodiment, there are a total of 4 single inlet pools 1, each 3.6m wide, 12m long in the direction of water flow, and 6.8m high. A pump chamber 11 is installed in the single inlet pool 1, and an axial flow pump is installed in the pump chamber 11.

[0030] In a preferred embodiment, there are two side piers 3 for the inlet pool, each 0.8m wide, 12m long in the direction of water flow, and 6.8m high.

[0031] In a preferred embodiment, there are five piers 4 in the inlet pool, each 1.0m wide, 12m long in the direction of water flow, and 6.8m high.

[0032] Two adjacent mechanical discharge inlet pools 1 share a central pier 4 in the inlet pool. The adjacent mechanical discharge inlet pool 1 and the self-draining inlet pool 5 share a central pier 4 in the inlet pool. The adjacent self-draining inlet pool 5 also share a central pier 4 in the inlet pool.

[0033] The pump station outlet pipe 2 is connected to the inlet pool 1 of the machine discharge. In the preferred embodiment, there are a total of 4 outlet pipes 2 of the pump station. They are plastic-coated steel pipes with a diameter of 1.6m and two 45° bends. The steel pipes passing through the pump room 11 and the outlet pool 8 are sealed with rigid wing rings and coated with polyester sealant.

[0034] In practical applications, the number and width of the self-draining inlet pool 5 can be determined according to the flow rate. In the preferred embodiment, there are two self-draining inlet pools 5, each 3.0m wide, 12m long in the direction of water flow, and 6.8m high.

[0035] The self-draining inlet pool 5 is connected to the self-draining outlet culvert 6. In a preferred embodiment, the self-draining outlet culvert 6 has two openings, each with a width of 3m, a height that gradually decreases from 3.6m to 2.0m, a length of 6m, a side wall thickness of 0.5m, a middle wall thickness of 1m, and a bottom plate and a top plate thickness of 0.5m.

[0036] The self-draining culvert 6 is connected to the self-draining gate chamber 7. In a preferred embodiment, the self-draining gate chamber 7 has two openings, each with a width of 3m, a height of 2.0m, a length of 2.4m, a side pier thickness of 0.8m, and a middle pier thickness of 1.0m. It is equipped with two gates, which are connected to the outlet pool 8.

[0037] In a preferred embodiment, the outlet pool 8 is 21.5m long, 25.2-9.0m wide, and 8.18m high. The outlet pool 8 is made of reinforced concrete with a rectangular and trapezoidal structure. A two-hole culvert is connected to the outlet pool 8. Except for the steel pipe, the connecting parts are sealed with rubber seals.

[0038] The outer side of the outlet pool 8 is the outlet pool wall 9. In a preferred embodiment, the lower part of the outlet pool wall 9 is 1.2m thick within a height range of 5.68m, and the thickness gradually changes from 1.2m to 0.7m from 5.68m to 8.18m.

[0039] The outlet pool wall 9 is provided with the outlet pool drain hole 10 on the side away from the pressure section B. In a preferred embodiment, there are two outlet pool drain holes 10, each 3m wide and 3m high.

[0040] When the water level inside the safety zone is higher than the water level outside the safety zone, floodwater flows through the self-draining inlet pool 5, through the self-draining culvert 6 and the self-draining gate chamber 7, into the outlet pool 8, and then into the outer river channel through the outlet pool drainage hole 10. When a flood occurs and the water level inside the safety zone is lower than the water level outside the safety zone, the gates of the self-draining culvert 6 and the self-draining gate chamber 7 are closed. Depending on the water volume, the number of axial flow pumps is activated, and floodwater flows into the outlet pool 8 through the pump station outlet pipe 2, and is discharged to the outside of the safety zone through the outlet pool drainage hole 10.

[0041] The following is a detailed description of the specific implementation plan of this embodiment: First, construct a single inlet pool 1 for mechanical drainage and a single inlet pool 5 for gravity drainage, arranged in order and number. Construct a pump room 11 inside the single inlet pool 1 for mechanical drainage, and install an axial flow pump inside the pump room 11. Then, construct a pump station outlet pipe 2, with one end of the outlet pipe 2 connected to the pump room 11. Construct a gravity drainage culvert 6 at the connection point of the single inlet pool 5 for gravity drainage, and construct a gravity drainage gate chamber 7 at the connection point of the gravity drainage culvert 6 for gravity drainage. Finally, construct an outlet pool 8, with the outlet pool 8 connected to the gravity drainage gate chamber 7. The other end of the pump station outlet pipe 2 is connected to the outlet pool 8, and the construction is completed.

[0042] The embodiments described above are only used to illustrate the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They are not intended to limit the scope of this utility model. Equivalent changes and modifications made without departing from the concept and principles of this utility model still fall within the scope of this utility model patent.

Claims

1. A pump station structure combining self-drainage and mechanical drainage, characterized in that, It includes a pump room section, a pressure section and an outlet pool connected in sequence (8); The pump chamber section includes a single inlet pool (1) for machine discharge water supply, which is respectively set on both sides. A pump chamber (11) is set in the single inlet pool (1) for machine discharge water supply, and an axial flow pump is set in the pump chamber (11). A self-draining inlet pool (5) is set in the middle of the single inlet pool (1) for machine discharge water supply on both sides. The pump chamber (11) is connected to one end of the pump station outlet pipe (2), and the other end of the pump station outlet pipe (2) is connected to the outlet pool (8); The self-draining inlet pool (5) is connected to the self-draining outlet culvert (6), the self-draining outlet culvert (6) is connected to one end of the self-draining outlet gate chamber (7), and the other end of the self-draining outlet gate chamber (7) is located in the outlet pool (8) and is connected to the outlet pool (8).

2. The pump station structure combining self-drainage and mechanical drainage according to claim 1, characterized in that, The single inlet pool (1) of the machine discharge is set on both sides away from the pressure section. The side pier (3) and the middle pier (4) of the inlet pool are respectively set on both sides. The side pier (3) of the inlet pool is set outside the middle pier (4) of the inlet pool. The machine discharge water inlet single pool (1) on both sides is also provided with a machine discharge water inlet single pool (1). The machine discharge water inlet single pool (1) on the inner side is provided with water inlet pool piers (4) on both sides away from the pressure section. The self-draining inlet pool (5) is equipped with inlet pool piers (4) on both sides of the end away from the pressure section.

3. The pump station structure combining self-drainage and mechanical drainage according to claim 1, characterized in that, The outer side of the outlet pool (8) is the outlet pool wall (9), and the outlet pool wall (9) is provided with an outlet pool drain hole (10) on the side away from the pressure section.

4. The pump station structure combining self-drainage and mechanical drainage according to claim 1, characterized in that, The pump station outlet pipe (2) is made of two 45° bent plastic-coated steel pipes. The two ends of the plastic-coated steel pipe are connected to the pump room (11) and the outlet pool (8) respectively, and a rigid wing ring is used for water sealing. The connection is coated with polyester sealant.

5. The pump station structure combining self-drainage and mechanical drainage according to claim 2, characterized in that, There are a total of 4 machine-discharge inlet pools (1), with 2 on each side, and a total of 2 self-discharge inlet pools (5).

6. The pump station structure combining self-drainage and mechanical drainage according to claim 5, characterized in that, Two adjacent machine-discharge inlet pools (1) share a central pier (4) in the inlet pool. The adjacent machine-discharge inlet pool (1) and the self-discharge inlet pool (5) share a central pier (4) in the inlet pool. The adjacent self-discharge inlet pool (5) shares a central pier (4) in the inlet pool. There are a total of 2 side piers (3) in the inlet pool and a total of 5 central piers (4) in the inlet pool.

7. The pump station structure combining self-drainage and mechanical drainage according to claim 1, characterized in that, There are two self-draining culverts (6) and two self-draining gate chambers (7). Each self-draining inlet pool (5) is connected to one self-draining culvert (6), and each self-draining culvert (6) is connected to one self-draining gate chamber (7).

8. The pump station structure combining self-drainage and mechanical drainage according to claim 3, characterized in that, The water outlet pool has two drainage holes (10), and the thickness of the pool wall (9) gradually decreases from the bottom to the top.

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