CN107059994B - Design structure of step pump station and pipeline for bidirectional water delivery - Google Patents
Design structure of step pump station and pipeline for bidirectional water delivery Download PDFInfo
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- CN107059994B CN107059994B CN201710444215.6A CN201710444215A CN107059994B CN 107059994 B CN107059994 B CN 107059994B CN 201710444215 A CN201710444215 A CN 201710444215A CN 107059994 B CN107059994 B CN 107059994B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
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Abstract
The invention discloses a design structure of a step pump station and a pipeline for bidirectional water delivery, which comprises a plurality of step pump stations which are connected in series through a main pipe, wherein one end of the main pipe is connected with a position for taking water at a low water level, the other end of the main pipe is connected with a position for taking water at a high water level, water is gradually extracted from the position for taking water at the low water level to the position for taking water at the high water level through the step pump stations and is defined as forward water delivery, water is introduced from the position for taking water at the low water level in a gravity-free flow mode from the position for taking water at the high water level and is defined as reverse water delivery, the front surfaces of the other pump stations except a first-stage pump station are provided with regulating ponds along the direction of the forward water delivery, and the inlets of the regulating ponds are communicated with the outlets of the pump stations through U-shaped bypass pipes.
Description
Technical Field
The invention belongs to the technical field of water delivery of a step pump station in hydraulic and hydroelectric engineering, and particularly relates to a design structure of a step pump station and a pipeline for bidirectional water delivery.
Background
In hydraulic engineering, a pump station is usually built to pressurize the water body at the low part of the terrain to increase the potential energy of the water body, so that the water body at the low part is lifted to the high part of the terrain through pipeline transmission to realize long-distance and large-fall pressurized water delivery. For mountainous areas and the like with large height difference in spatial distribution, due to the influences of factors such as terrain, difficulty of actual engineering construction and the like, a plurality of pump stations which are gradually increased in height and adopt pipelines to convey water are constructed at different positions along a water conveying line to convey water, namely, the pipeline transmission is utilized to realize long-distance and high-water-head difference water conveyance of the step pump station. On the other hand, when a water body at a higher place of the terrain needs to be conveyed to a lower place of the terrain, a pipeline is usually laid between a high water level at the higher place of the terrain and a low water level at the lower place of the terrain, water is conveyed in a gravity-flow mode, and the hydraulic transition process of a water conveying project is controlled step by a valve on the pipeline so as to meet the requirements of water conveying safety and water conveying flow.
The water body with low water level is gradually pumped to a high water level position through a step pump station, and positive water delivery is defined; and the high water level water body is introduced into the low water level in a gravity flow mode, and reverse water delivery is defined. In the current engineering construction, the low water body is conveyed to a high water level reservoir or a reservoir and the like only by constructing a step pump station for pressurization, or the high water level water body is conveyed to the low water level through a pipeline independently. In the actual process of water resource allocation, the following situations exist: when the water volume is large at a low water level place, pressurizing the water body through a step pump station, and conveying water to a reservoir at a high water level and the like by using a pipeline to store water; when the low water level place lacks water, the water body that the accessible pipeline gravity flowed by oneself is discharged the water body that the high water level was stored to low water level department of low reaches and is supplied water, alleviates the lack of water problem. In the existing engineering construction, only defined forward or reverse water delivery working conditions are considered independently, and the problem that bidirectional water delivery needs to be realized at high and low water levels with space-time distribution difference cannot be solved reasonably and economically.
Disclosure of Invention
Based on the problems, the invention provides a design structure and a method of a step pump station and a pipeline for bidirectional water delivery, which can well solve the problems and optimize the spatial configuration of water resources.
The technical scheme adopted by the invention is as follows:
the utility model provides a design structure of step pump station and pipeline of two-way water delivery, include a plurality of cascade pump stations that lie in together through the main pipe series connection, and the one end of main pipe connects low water level water intaking position, the high water level play water position is connected to the other end, water is taken high water level play water position department step by low water level water intaking position through step pump station, define as forward water delivery, water is introduced low water level water intaking position department with gravity-fed mode by high water level play water position department, define as reverse water delivery, along the direction of forward water delivery, except first-stage pump station, all the preceding of remaining pump stations all is equipped with the equalizing basin, and communicate through U type bypass pipe between the entry in equalizing basin and the export of pump station.
The pump stations are connected by a main pipe and a U-shaped by-pass pipe for water delivery, and the cascade pump stations are connected in series;
furthermore, valves are arranged on the inlet and the outlet of each pump station, the outlet of the regulating pool and the U-shaped bypass pipe, and are used for controlling the water supply direction and the water delivery amount.
Wherein, a valve is arranged on the main pipe in front of the regulating tank and used for opening or blocking the water inlet of the regulating tank; a valve is arranged on a main pipe connected between the regulating reservoir and the pump station and used for opening or blocking water transmission between the regulating reservoir and the pump station; the main pipe is provided with valves from the pipe orifice end at the low part of the terrain and the pipe orifice end at the high part of the terrain, and the valves are used for opening or blocking the water delivery of the pipeline.
Furthermore, a water inlet pipe and a water outlet pipe are arranged on the side wall of the water inlet end and the water outlet end of the regulating tank to ensure the circulation of water flow; the top of the adjusting tank is provided with a manhole, and the bottom of the adjusting tank is also provided with a dredging pipe for regularly and artificially entering the adjusting tank from the manhole, and washing and dredging sediment at the bottom of the adjusting tank in the water delivery process.
Furthermore, a ventilation pipe and a ventilation cap are arranged on the top plate of the regulating reservoir, so that smooth air flow in the regulating reservoir is ensured during water delivery, and the safety of the regulating reservoir during normal water delivery is not influenced.
Further, a water depth measuring instrument and a water level alarm are also arranged on the top plate of the adjusting tank; the water depth measuring instrument is used for reading the water level of the regulating tank, and can monitor the water level in the regulating tank in real time through the reading of a display device outside the regulating tank, so that the water depth measuring instrument is convenient for operators to manage; the water level alarm can give an alarm under the condition that the water level of the regulating reservoir is too high, and reminds pump station monitoring personnel to take measures so as to prevent the water level in the regulating reservoir from being too high and jacking a top plate of the regulating reservoir, thereby causing influence on the safety of the regulating reservoir.
Furthermore, be provided with circular overflow hole on the lateral wall of equalizing basin and non-business turn over water end, set up and be close to equalizing basin roof below vertical distance 0.5m department, rivers can flow through the circular overflow hole on the lateral wall when the water level is too high to prevent that the water level of equalizing basin is too high and the top of jacking its roof, cause the influence to its security.
Furthermore, a V-shaped energy dissipation plate is arranged in the adjusting tank, two wings of the V-shaped energy dissipation plate are of a symmetrical structure, and the central axis of the V-shaped energy dissipation plate is consistent with the central axis formed by connecting the water inlet and outlet pipe ports of the adjusting tank; the height of the V-shaped energy dissipation plate is 1/3 of the height of the side wall of the adjusting tank; the energy dissipation plate is provided with a rectangular water outlet hole, after part of water flows through the water outlet hole of the energy dissipation plate, the flow speed is reduced, the other part of water can pass through the rectangular water outlet hole and pass through the energy dissipation plate, part of water is rebounded by the energy dissipation plate at a reverse flow speed, the rebounded water and the initial water collide and mix, a vortex area is formed in front of the plate, and the energy of the water flow is reduced, so that relatively stable water flow can be formed from the back of the plate to a water outlet pipe, the water absorption efficiency of the water pump is improved, and the service life of the water pump unit is prolonged.
Furthermore, the position of the step pump station is determined by referring to the elevation between the low water level water intake and the high water level water outlet, the terrain condition, the pump station lift and other factors.
Furthermore, the number of pump stations of the step pump station is determined according to factors such as the actual engineering height difference, the terrain condition, the water pump lift and the like; the pump station and the regulating reservoir are connected in series through a main pipe, and particularly take the form of water inlet, regulating reservoir, pump station and water outlet, and mainly flow direction during forward water delivery.
Compared with the prior art, the invention has the beneficial effects that:
(1) the structure of the invention can realize bidirectional water delivery in two areas with different elevations, thereby enlarging the benefit range of engineering.
(2) The invention provides a method for designing the pressure bearing capacity of a main pipe by properly opening a forward water inlet valve of an adjusting tank during reverse water delivery, so that the adjusting tank is communicated with a reverse water supply pipeline, the water hammer pressure generated by opening and closing of the valve can be effectively released, and the pressure bearing capacity of the main pipe can be designed by mainly considering the water hammer damage generated during forward water delivery of a pump station. Therefore, the invention increases the actual action range of the engineering on the premise of ensuring the engineering economy.
(3) According to the invention, energy dissipation measures are arranged in the regulating reservoir in the water delivery structure of the step pump station, so that the water can flow rapidly and stably during forward water delivery, cavitation is avoided, the water pump is ensured to have good water absorption condition, and the water absorption efficiency of the water pump and the working safety and reliability of the regulating reservoir can be effectively improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application, and the description of the exemplary embodiments and illustrations of the application are intended to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of a water transport plane arrangement of a cascade pump station composed of three pump stations;
FIG. 2 is a sectional view of the conditioning tank;
FIG. 3 is an elevation view of the conditioning tank;
figure 4 is a schematic view of a V-shaped energy dissipation plate structure;
figure 5 is a schematic view of the decomposition of the flow velocity of the V-shaped energy dissipation plate;
FIG. 6 is a flow chart showing the sequence of valve opening in forward water delivery;
FIG. 7 is a flow chart showing the sequence of valve opening in reverse water delivery;
FIG. 8 is a graph of the elevation of a water pipeline along the distance in the example;
FIG. 9 is a graph of pressure change along the pipeline using scheme 1 when water is delivered reversely;
FIG. 10 is a graph showing the pressure change along the pipeline using scheme 2 when water is reversely delivered.
The system comprises a pump station PS1, a pump station PS2, a pump station PS3, a regulating pool P1, a regulating pool P2, a valve V1 6, a valve V2, a valve V3, a valve V4, a valve V5, a valve V6, a valve V7, a valve V8 13, a valve V9, a valve V10, a valve V11, a main trunk pipe 17, a bypass pipe 18U-shaped, a regulating pool 19, a top plate 20, a dissipation plate 21V, a water depth monitor 22, a water level alarm 23, a water inlet pipe 24, a water outlet pipe 25, a dredging pipe 26, a ventilation pipe 27, a ventilation cap 28, a maintenance hole 29, a pier 30, an overflow hole 31 and a water outlet hole of the dissipation plate 32V.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As introduced by the background technology, the defined forward or reverse water conveying working condition is only considered in the existing engineering construction, the problem that the bidirectional water conveying needs to be realized at high and low water levels with space-time distribution difference cannot be reasonably and economically solved, in order to solve the technical problem, the design structure of the step pump station and the pipeline for bidirectional water conveying is provided, the design structure comprises a plurality of step pump stations which are connected in series through a main pipe, one end of the main pipe is connected with a low water level water taking position, the other end of the main pipe is connected with a high water level water outlet position, water is extracted from the low water level water taking position to the high water level water outlet position through the step pump stations step by step and is defined as forward water conveying, water is introduced from the high water outlet position to the low water level water taking position in a gravity flow manner and is defined as reverse water conveying, the adjusting pool is arranged in front of other pump stations except for the first-stage pump station along the forward water conveying direction, and the inlet of the regulating reservoir is communicated with the outlet of the pump station through a U-shaped bypass pipe. The pump stations are connected by a main pipe and a U-shaped by-pass pipe for water delivery, and the cascade pump stations are connected in series;
furthermore, valves are arranged on the inlet and the outlet of each pump station, the outlet of the regulating pool and the U-shaped bypass pipe, and are used for controlling the water supply direction and the water delivery amount.
Wherein, a valve is arranged on the main pipe in front of the regulating tank and used for opening or blocking the water inlet of the regulating tank; a valve is arranged on a main pipe connected between the regulating reservoir and the pump station and used for opening or blocking water transmission between the regulating reservoir and the pump station; the main pipe is provided with valves from the pipe orifice end at the low part of the terrain and the pipe orifice end at the high part of the terrain, and the valves are used for opening or blocking the water delivery of the pipeline.
Furthermore, a water inlet pipe and a water outlet pipe are arranged on the side wall of the water inlet end and the water outlet end of the regulating tank to ensure the circulation of water flow; the top of the adjusting tank is provided with a manhole, and the bottom of the adjusting tank is also provided with a dredging pipe for regularly and artificially entering the adjusting tank from the manhole, and washing and dredging sediment at the bottom of the adjusting tank in the water delivery process.
Furthermore, a ventilation pipe and a ventilation cap are arranged on the top plate of the regulating reservoir, so that smooth air flow in the regulating reservoir is ensured during water delivery, and the safety of the regulating reservoir during normal water delivery is not influenced.
Further, a water depth measuring instrument and a water level alarm are also arranged on the top plate of the adjusting tank; the water depth measuring instrument is used for reading the water level of the regulating tank, and can monitor the water level in the regulating tank in real time through the reading of a display device outside the regulating tank, so that the water depth measuring instrument is convenient for operators to manage; the water level alarm can give an alarm under the condition that the water level of the regulating reservoir is too high, and reminds pump station monitoring personnel to take measures so as to prevent the water level in the regulating reservoir from being too high and jacking a top plate of the regulating reservoir, thereby causing influence on the safety of the regulating reservoir.
Furthermore, be provided with circular overflow hole on the lateral wall of equalizing basin and non-business turn over water end, set up and be close to equalizing basin roof below vertical distance 0.5m department, rivers can flow through the circular overflow hole on the lateral wall when the water level is too high to prevent that the water level of equalizing basin is too high and the top of jacking its roof, cause the influence to its security.
Furthermore, a V-shaped energy dissipation plate is arranged in the adjusting tank, two wings of the V-shaped energy dissipation plate are of a symmetrical structure, and the central axis of the V-shaped energy dissipation plate is consistent with the central axis formed by connecting the water inlet and outlet pipe ports of the adjusting tank; the height of the V-shaped energy dissipation plate is 1/3 of the height of the side wall of the adjusting tank; the energy dissipation plate is provided with a rectangular water outlet hole, after part of water flows through the water outlet hole of the energy dissipation plate, the flow speed is reduced, the other part of water can pass through the rectangular water outlet hole and pass through the energy dissipation plate, part of water is rebounded by the energy dissipation plate at a reverse flow speed, the rebounded water and the initial water collide and mix, a vortex area is formed in front of the plate, and the energy of the water flow is reduced, so that relatively stable water flow can be formed from the back of the plate to a water outlet pipe, the water absorption efficiency of the water pump is improved, and the service life of the water pump unit is prolonged.
Furthermore, the position of the step pump station is determined by referring to the elevation between the low water level water intake and the high water level water outlet, the terrain condition, the pump station lift and other factors.
Furthermore, the number of pump stations of the step pump station is determined according to factors such as the actual engineering height difference, the terrain condition, the water pump lift and the like; the pump station and the regulating reservoir are connected in series through a main pipe, and particularly take the form of water inlet, regulating reservoir, pump station and water outlet, and mainly flow direction during forward water delivery.
The invention is described in detail below with reference to the accompanying drawings:
example 1:
and (4) a positive water conveying process. The forward water conveying is that each stage of pump station draws water from a main canal (or a water inlet pool or an adjusting pool or the like) at the lower part of the water level and gradually presses the water to a reservoir (or a reservoir or the like) at the higher part of the water level through the pump station. The method comprises the following specific steps: before starting the pump, the main pipe upper valves V1, V2, V3, V4, V5, V6 and V7 are opened in sequence, the main pipe 17 pipeline is kept open from the pump station PS3 to the main channel section, and the U-shaped bypass pipe 18 upper valves V9, V10 and V11 are closed. The method comprises the steps of firstly starting a pump station PS1, conveying water to an adjusting tank P1, enabling a water pump unit in a pump station PS2 when the reading of a water depth monitor 22 in an adjusting tank P1 is kept stable due to the fact that an overflow hole 31 is formed in the side wall of the adjusting tank P1, enabling the water to overflow from the overflow hole when the water flow is high enough, similarly starting the water pump unit in a pump station PS3, and finally starting a valve V8. Thereby realizing the forward water conveying process. Fig. 6 is a flow chart showing the sequence of valve opening in the case of forward water delivery.
Example 2:
and (5) carrying out a reverse water conveying process. The reverse water conveying is that water is conveyed to the downstream from a reservoir (or a reservoir and the like) with a high water level in a gravity flowing mode. During this time, the water flow does not pass through the pumping stations PS1, PS2, PS3, but is directly fed through the U-shaped bypass 18 in fig. 1, which is connected in a branched fashion corresponding to the pumping stations and the conditioning tank, in the opposite direction to the forward feeding process. The method comprises the following specific steps: before water delivery, valves V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11 are closed. When reverse water delivery is started, the front valve V6 (which can discharge a pressure water hammer generated in the opening process of the valve on the bypass pipe and plays a role similar to a surge tank) of the regulating reservoir P2 is firstly opened to 20% of opening, then the valve V11 on the U-shaped bypass pipe 18 is opened, and as the overflow hole 31 is formed in the side wall of the regulating reservoir P2, when the water flow is high enough, the water flow overflows from the overflow hole and flows out, so that when the reading of the water depth monitor 22 in the regulating reservoir P2 is kept stable, the water hammer is opened to cause the water hammer to be discharged. Then, the front valve V3 of the regulating reservoir is opened to 20 percent of opening, then the valve V10 on the U-shaped bypass pipe 18 of the valve is opened, and the valve V9 is opened when the reading of the 22 water depth monitor in the regulating reservoir P1 is kept stable. Thus, the reverse water delivery is realized, and the flow of the whole pipeline is controlled by the opening degrees of the valves V9, V10 and V11. Fig. 7 is a flow chart showing the sequence of valve opening in the case of reverse water delivery.
To better explain embodiment 2 of the present invention and the beneficial effect (2) of the present invention, a numerical simulation of the reverse water delivery process is performed below with reference to the pump station and pipeline arrangement shown in fig. 1 and 8. Setting simulation basic parameters: the length of the water conveying pipeline is 29.7km, the water conveying flow rate is 3.4 m/s, the water levels of a main canal and a reservoir are 31.0m and 130.0m respectively, the diameter DN1600 of the pipeline, the water shock wave speed is 1050m/s, and the water levels of intermediate regulating ponds P1 and P2 are 56.0m and 86.0m respectively. It should be noted that before the reverse water delivery, the forward water delivery is performed, the pipeline is in a full pipe state after the water pump unit is stopped, the pumps are stopped step by PS3-PS2-PS1, and the water stored in the adjusting pond is harvested at 4000m for cultivation.
Because the valve opening water hammer is closely related to the opening angle and the speed of the valve, according to the actual situation, the simulation adopts two schemes: when the scheme 1 is reverse water delivery, the valves V3 and V6 before the regulating reservoir are not opened, and only the valves V11 (350 s to 27% opening degree), V10 (1000 s to 100% opening degree) and V9 (300 s to 100% opening degree) are opened in sequence; the scheme 2 is a valve opening sequence scheme of sequentially opening V6 (opening to 20% of opening degree), V11 (350 s opening to 27% of opening degree), V3 (opening to 20% of opening degree), V10 (1000 s opening to 100% of opening degree) and V9 (300 s opening to 100% of opening degree). The simulation results of the schemes 1 and 2 are shown in fig. 9 and 10, respectively.
Compared with schemes 1 and 2, the numerical simulation result of the hydraulic transition process for realizing reverse water delivery by opening the valve (figures 9 and 10). It was found that under the condition of scheme 2, the maximum pressure envelope of the water hammer pipe is significantly reduced, and the water hammer pressure of the pipe gradually decreases along the way. Wherein the maximum water hammer pressure of the scheme 1 is 107.8m, the maximum water hammer pressure of the scheme 2 is 68.5m (the maximum pressure reduction along the way is 36.5 percent), and the negative pressure of the pipeline is not obvious. The invention example 2 is shown to have significant benefits. During design, the design bearing capacity of the pipeline is designed to be dominant by the pressure value of the water hammer of the accident pump stopping, so that the actual action range of the engineering is enlarged on the premise of ensuring the engineering economy.
In the embodiment, three stages of pump stations are connected in series to realize bidirectional water transmission between the main channel and the reservoir, the number of the pump stations can be increased or decreased and the direction of the water transmission pipeline can be changed according to the height difference, the length and the direction of water regulation in specific engineering, and other various conditions are not described in the embodiment one by one. In addition, the number and the size of the overflow holes on the side wall of the regulating tank are only schematic diagrams and can be determined according to the actual engineering situation. The invention can be modified and optimized by a person skilled in the art, but any modification, equivalent replacement, etc. within the implementation principle of the invention shall be included in the scope of the claims of the invention.
Claims (7)
1. A design structure of a step pump station and a pipeline for bidirectional water delivery is characterized by comprising a plurality of step pump stations which are connected in series through a main pipe, wherein one end of the main pipe is connected with a low-water-level water taking position, the other end of the main pipe is connected with a high-water-level water outlet position, water is gradually extracted from the low-water-level water taking position to the high-water-level water outlet position through the step pump stations and is defined as forward water delivery, water is introduced from the high-water-level water outlet position to the low-water-level water taking position in a gravity-free flow mode and is defined as reverse water delivery, and the front surfaces of the rest pump stations except a first-stage pump station are provided with regulating ponds, and inlets of the regulating ponds are communicated with outlets of the pump stations through U-shaped bypass pipes;
valves are arranged on the inlet and the outlet of each pump station, the outlet of the regulating reservoir and the U-shaped bypass pipe;
the regulating reservoir is internally provided with a V-shaped energy dissipation plate, two wings of the V-shaped energy dissipation plate are of a symmetrical structure, and the central axis of the V-shaped energy dissipation plate is consistent with the central axis formed by connecting the water inlet and outlet pipe ports of the regulating reservoir;
the height of the V-shaped energy dissipation plate is 1/3 of the height of the side wall of the adjusting tank; the energy dissipation plate is provided with a rectangular water outlet hole, after part of water flows through the water outlet hole of the energy dissipation plate, the flow speed is reduced, the other part of water flows through the rectangular water outlet hole and penetrates through the energy dissipation plate, part of water flows are rebounded by the energy dissipation plate at a reverse flow speed, the rebounded water flows collide with the initial water flow and are mixed, a vortex area is formed in front of the plate, and the energy of the water flows is reduced.
2. The design structure of the step pump station and pipeline for bidirectional water delivery according to claim 1, wherein the regulating reservoir is provided with a water inlet pipe and a water outlet pipe on the side wall of the water inlet and outlet ends respectively to ensure water circulation; the top of the adjusting tank is provided with an access hole, and the bottom of the adjusting tank is also provided with a dredging pipe.
3. The design structure of the step pump station and the pipeline for bidirectional water transportation according to claim 1, wherein a ventilation pipe and a ventilation cap are further arranged on the top plate of the adjusting tank.
4. The design structure of the two-way water delivery step pump station and the pipeline according to claim 1, wherein a water depth measuring instrument and a water level alarm are further arranged on the top plate of the regulating reservoir; the water depth measuring instrument is used for reading the water level of the regulating tank and monitoring the water level in the regulating tank in real time through the reading of display equipment outside the regulating tank; the water level alarm gives an alarm under the condition that the water level of the regulating reservoir is too high, and reminds pump station monitoring personnel to take measures so as to prevent the water level in the regulating reservoir from being too high and jacking a top plate of the regulating reservoir, thereby causing influence on the safety of the regulating reservoir.
5. The design structure of the step pump station and pipeline for bidirectional water transportation according to claim 1, wherein the adjusting tank is provided with a circular overflow hole on the side wall of the non-water inlet and outlet end.
6. The design structure of the step pump station and the pipeline for the bidirectional water transportation according to claim 5, wherein the circular overflow hole is arranged at a vertical distance of 0.5m below the top plate of the adjusting tank.
7. The design structure of the step pump station and the pipeline for the bidirectional water delivery according to claim 1, wherein the position and the number of the step pump stations are determined by referring to the elevation between the low water level water intake and the high water level water outlet, the terrain condition and the pump station lift.
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| CN109440874B (en) * | 2018-11-21 | 2021-06-04 | 华北水利水电大学 | Step pump station regulation pond system based on water balance |
| CN109885013B (en) * | 2019-03-31 | 2021-12-14 | 赵玉丹 | Pump station system safety control method and device for hydraulic engineering and pump station system |
| CN110158698B (en) * | 2019-06-20 | 2021-06-29 | 安徽工业大学 | Opposite bidirectional supercharging ecological drinking water system and use method thereof |
| CN110792155A (en) * | 2019-11-14 | 2020-02-14 | 天津城建大学 | Energy dissipation well for sewage pipe of comprehensive pipe rack |
| CN114370033A (en) * | 2021-10-29 | 2022-04-19 | 长江勘测规划设计研究有限责任公司 | Non-water-cut-off maintenance device and method for main channel with storage, pressurization and overflowing by utilizing movable water tower |
| CN117947842A (en) * | 2024-01-15 | 2024-04-30 | 安徽省水利水电勘测设计研究总院股份有限公司 | Gradient water transfer pump station under condition of gravity pressure flow water delivery of culvert |
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|---|---|---|---|---|
| WO2009063501A2 (en) * | 2007-09-20 | 2009-05-22 | Amin Rahul Nanubhai | A pumping system for pumping liquid from a lower level to an operatively higher level |
| CN205116279U (en) * | 2015-09-28 | 2016-03-30 | 云南大红山管道有限公司 | High height above sea level pipeline water delivery system of big pipe diameter of long distance |
| CN205894151U (en) * | 2016-08-17 | 2017-01-18 | 东风设计研究院有限公司 | Remote two -stage pressure water pump linkage control device to highland water supply |
| CN206233354U (en) * | 2016-09-14 | 2017-06-09 | 江西科盛环保股份有限公司 | A kind of assembled prefabricated pumping plant of intelligence |
| CN206784496U (en) * | 2017-06-13 | 2017-12-22 | 山东大学 | A kind of cascade pumping station of two-way water delivery and the design structure of pipeline |
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2017
- 2017-06-13 CN CN201710444215.6A patent/CN107059994B/en active Active
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