A multi-channel flow-generating device and flow-generating method for a large test pool

Abstract

The invention discloses a multi-channel flow-making device and flow-making method for a large test pool, wherein the flow-making device comprises a large test pool bottom, a flow-making water pump, a flow meter, a pressure gauge, a lower annular reflow corridor, a pool bottom gradient section outflow corridor, an upper gallery and a control system; the pool bottom gradient section outflow corridor, a plurality of flow-making water pumps and an upper gallery are arranged in sequence on both sides of the large test pool bottom, the two ends of the flow-making water pump are connected to the pool bottom gradient section outflow corridor and the upper gallery respectively, the lower annular reflow corridor is horizontally annularly arranged at the periphery of the large test pool bottom, the upper gallery is located above the lower annular reflow corridor and arranged along the pool wall of the large test pool, each flow-making water pump is equipped with a flow meter and a pressure gauge, and the control system is electrically connected to the flow meter and the pressure gauge. The invention solves the problems of low efficiency, poor uniformity, low flexibility, unreasonable structure and space design and high cost of the existing flow-making method.

Description

Technical Field

[0001] The invention relates to a flow-making device, in particular to a multi-channel flow-making device and a flow-making method for a large-scale test water pool. Background Art

[0002] In the fields of civil engineering, hydraulic engineering and marine engineering, large test pools are widely used to simulate natural water environments for various hydraulic tests. Traditional flow generation methods usually involve using a single channel or a limited pump configuration in the pool to produce the required water flow environment, and these existing flow generation methods have some limitations in large test pools, mainly including:

[0003] (1) Efficiency and uniformity issues: Existing flow generation methods often have difficulty in creating a uniform and efficient water flow environment throughout the entire pool, especially when faced with pools of different shapes and sizes, which may lead to inaccurate test results;

[0004] (2) Lack of flexibility: Existing technologies usually lack flexibility in water flow direction and intensity, and cannot be quickly adjusted according to specific experimental needs;

[0005] (3) Space and structural limitations: In some designs, the pump and piping configuration occupy the space of the pool, limiting the installation and operation of other equipment (such as underwater vibration tables), while also increasing the investment in civil engineering;

[0006] (4) Cost and maintenance issues: The existing system relies on complex pipes and metal structures, which are not only expensive in initial construction, but also involve more costs during maintenance and replacement, as well as energy consumption during operation.

[0007] Based on this, the present invention proposes a multi-channel flow-making device and a flow-making method for a large test pool to solve the above-mentioned technical problems. Summary of the invention

[0008] The present invention provides a multi-channel flow-making device and method for a large-scale test water pool. A plurality of flow-making water pumps are arranged on both sides of the water pool to form an efficient water circulation system. The lower annular return corridor and the upper corridor design are combined to achieve uniform water flow distribution in the entire water pool, optimize the water pump operation efficiency and control system, improve the reliability and continuity of the entire system, and solve the problems of low efficiency, poor uniformity, low flexibility, unreasonable structure and space design, and high cost of existing flow-making methods.

[0009] In the first aspect, the present invention provides a multi-channel flow-generating device for a large test pool, which adopts the following technical scheme:

[0010] The flow-making device comprises: a large test pool bottom, a flow-making water pump, a flow meter, a pressure gauge, a lower annular reflux corridor, a pool bottom gradient section outflow corridor, an upper corridor and a control system;

[0011] The two sides of the bottom of the large test water pool are respectively provided with a pool bottom gradient section outflow gallery, a plurality of flow-making water pumps and an upper gallery in sequence, the two ends of the flow-making water pump are respectively connected to the pool bottom gradient section outflow gallery and the upper gallery, the lower annular return flow gallery is horizontally annularly arranged at the periphery of the bottom of the large test water pool, the upper gallery is located above the lower annular return flow gallery and arranged along the pool wall of the large test water pool, the upper gallery is connected to the lower annular return flow gallery, and the lower annular return flow gallery is filled with water;

[0012] The flow pump on one side of the bottom of the large test pool serves as an outflow pump for pumping water, and the flow pump on the other side serves as a return pump for draining water;

[0013] Each of the flow-making water pumps is equipped with a flow meter and a pressure gauge, wherein the flow meter is used to collect flow data of the flow-making water pump, and the pressure gauge is used to collect pressure data of the flow-making water pump;

[0014] The control system is electrically connected to the flow meter and the pressure gauge. The control system can monitor and adjust the operating status of the flow pump in real time, and can adjust the operating parameters of the flow pump according to the data collected by the flow meter and the pressure gauge, and adjust the operating status of the flow pump according to test requirements.

[0015] Preferably, the flow-generating water pump adopts a large-scale air-permeable, low-lift, large-flow cross-flow water pump.

[0016] Preferably, 24 outflow water pumps and 24 return water pumps are provided.

[0017] Preferably, the lower annular recirculation corridor, the outflow corridor of the pool bottom gradient section, and the upper corridor are all constructed of concrete materials.

[0018] Preferably, the opening of the cross-section of the outflow gallery of the gradual transition section at the bottom of the pool gradually increases from one end connected to the flow-making water pump to the other end.

[0019] Preferably, the opening of the cross section of the upper gallery gradually increases from one end connected to the flow-making water pump to the other end.

[0020] In the second aspect, the present invention provides a multi-channel flow-making method for a large test water pool, using the above-mentioned flow-making device to create flow. When the flow-making is started, the outflow pump on one side of the bottom of the large test water pool pumps the water in the lower annular return flow corridor to the upper corridor. After the water passes through the pump body, it flows into the bottom of the large test water pool through the outflow corridor of the gradient section of the pool bottom, forming a water flow circulation in the entire field; after the water flows through the entire pool, it passes through the outflow corridor of the gradient section of the pool bottom on the other side, and the return water pump discharges the water into the upper corridor, and then flows back to the lower annular return flow corridor again, completing a complete water flow circulation process.

[0021] When water flows through the outflow pump and the return pump, the flow meter and the pressure gauge collect real-time data on the water flow rate and the pressure inside the pump body. The control system monitors the operating status of the outflow pump and the return pump in real time and makes timely adjustments.

[0022] Beneficial effects of the present invention:

[0023] (1) The present invention has an efficient flow-generating method, which adopts a flow-generating method that combines pumping and drainage at both ends of the test pool, and cooperates with a large water delivery corridor for backflow to form an efficient water circulation system; this flow-generating design can quickly establish a stable water flow environment and ensure the uniform distribution of water flow throughout the field. Through the coordinated work of the flow-generating water pumps on both sides, continuous water flow circulation is achieved, so that the test pool can maintain a long-term and stable flow-generating state. In addition, this method reduces energy loss in the water flow path, improves the overall efficiency and operational stability of the system, and is suitable for various complex experimental conditions.

[0024] (2) The multi-pump cooperative control system of the present invention not only ensures the flexibility and diversity of the flow generation process, but also realizes precise control of the water pump performance by combining with the real-time data feedback of the flow meter and the pressure gauge; this highly accurate control mechanism enables the present invention to meet the changing experimental conditions. Whether it is required to have uniform flow, local enhanced flow or flow in a specific direction, the control system can respond quickly by adjusting the corresponding water pump parameters, which not only improves the flexibility and accuracy of the experiment, but also enhances the adaptability of the entire system, enabling it to maintain high efficiency and accuracy in a series of complex experimental designs. In addition, this cooperative control also reduces the risk of experimental interruption due to equipment failure and improves the reliability and stability of the entire system.

[0025] (3) The lower annular recirculation corridor of the present invention is horizontally arranged in an annular direction outside the water pool, which releases the space below the water pool and reserves enough space for installing an underwater vibration table or other large equipment. This design provides convenience for the installation and operation of the equipment, adapts to various experimental needs, and improves the flexibility of the application of the flow-making device. At the same time, the compact design of the upper corridor and the lower annular recirculation corridor reduces the occupancy of the internal space of the water pool, optimizes the overall structural layout, improves space utilization, and significantly reduces the investment in civil engineering.

[0026] (4) The water delivery corridor of the present invention is constructed of concrete materials, which are durable and easy to maintain. The use of concrete corridors avoids additional metal or plastic pipe systems, thereby significantly reducing material costs and subsequent maintenance costs. Reasonable corridor structure design not only ensures efficient water return, but also reduces the construction materials and time required during the construction process, greatly reducing the overall project cost.

[0027] (5) The present invention adopts a low-head, large-flow inertial water pump. By optimizing the selection and configuration of the water pump, it ensures that energy consumption is minimized while meeting the flow generation requirements. The real-time monitoring and adjustment control system ensures that the water pump always operates within the optimal efficiency range, thereby reducing energy consumption and significantly reducing operating costs. This high-efficiency operation mode is not only environmentally friendly, but also improves the economy and sustainability of the system.

[0028] (6) The present invention adopts a multi-channel coordinated control system to ensure the high reliability of the system. Even if some water pumps fail, the flow test can still be carried out. Each group of flow pumps can operate independently and serve as backup for each other. The control system will automatically detect the status of the water pumps and quickly switch to the backup pump when a failure occurs. This design not only improves the overall reliability of the system, but also ensures the continuity and stability of the flow test, avoids the adverse effects caused by experimental interruptions, and improves the stability and safety of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0030] Figure 1 is a three-dimensional diagram of the flow-generating device of this embodiment;

[0031] Figure 2 A three-dimensional diagram of the flow-generating device of this embodiment from another perspective;

[0032] Figure 3 is a top view of the flow-generating device of this embodiment;

[0033] Figure 4 is a cross-sectional view of the flow generating device of this embodiment;

[0034] Figure 5 It is a partial view and a partial enlarged view of the flow-generating device of this embodiment;

[0035] Figure 6 The figure is a schematic diagram of the whole-field flow generation in this embodiment (the arrows in the figure indicate the direction of the water flow).

[0036] In the figure:

[0037] 1- Bottom of large test pool; 2- Flow pump; 3- Flow meter; 4- Pressure gauge; 5- Lower annular recirculation corridor; 6- Outflow corridor of the gradual transition section of the pool bottom; 7- Upper corridor. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0039] like Figure 1-Figure 6 As shown, a multi-channel flow-making device for a large test pool provided in this embodiment comprises: a large test pool bottom 1, a flow-making water pump 2, a flow meter 3, a pressure meter 4, a lower annular return flow gallery 5, a pool bottom gradient section outflow gallery 6, an upper gallery 7 and a control system; the pool bottom gradient section outflow gallery 6, a plurality of flow-making water pumps 2 and an upper gallery 7 are arranged in sequence on both sides of the pool bottom 1 of the large test pool, the two ends of the flow-making water pump 2 are connected to the pool bottom gradient section outflow gallery 6 and the upper gallery 7 respectively, the lower annular return flow gallery 5 is horizontally annularly arranged on the periphery of the pool bottom 1 of the large test pool, the upper gallery 7 is located above the lower annular return flow gallery 5 and arranged along the pool wall of the large test pool, and the upper gallery 7 and the lower annular return flow gallery 5 are arranged in a horizontal annular direction. The return corridor 5 is connected, and the lower annular return corridor 5 is filled with water; the flow pump 2 on the front side of the bottom 1 of the large test pool serves as an outflow pump for pumping water, and the flow pump 2 on the rear side serves as a return pump for drainage; each flow pump 2 is equipped with a flow meter 3 and a pressure gauge 4, the flow meter 3 is used to collect the flow data of the flow pump 2, and the pressure gauge 4 is used to collect the pressure data of the flow pump 2; the control system is electrically connected to the flow meter 3 and the pressure gauge 4, and the control system can monitor and adjust the operating status of the flow pump 2 in real time, and can adjust the operating parameters of the flow pump 2 according to the data collected by the flow meter 3 and the pressure gauge 4, and adjust the operating status of the flow pump 2 according to the test requirements.

[0040] The flow generation method of this embodiment can be found in Figure 6When the flow generation starts, the outflow water pump on the front side pumps the water in the lower annular return flow corridor 5 to the upper corridor 7. After passing through the pump body, the water flows into the bottom 1 of the large test pool through the outflow corridor 6 of the pool bottom gradient section, forming a water flow circulation in the whole field. After the water flows through the whole pool, it passes through the outflow corridor 6 of the pool bottom gradient section on the rear side, and then the backflow water pump on the rear side discharges the water into the upper corridor 7, and then flows back to the lower annular return flow corridor 5 again, completing a complete water flow circulation process.

[0041] In this embodiment, the lower annular recirculation corridor 5 is horizontally arranged outside the pool, freeing up the space below the pool. This design provides a flexible arrangement scheme, so that enough space can be reserved at the bottom of the pool to install an underwater vibration table or other large equipment. In addition, the layout and structural design of the corridor take into account the convenience of equipment installation and operation, providing a good infrastructure guarantee for a variety of experimental needs. The upper corridor 7 and the lower annular recirculation corridor 5 are compactly designed and occupy a small space. The upper corridor 7 is located above the pool and arranged along the pool wall, and the lower annular recirculation corridor 5 surrounds the periphery of the pool. This design not only saves the internal space of the pool, but also reduces the investment in civil engineering, optimizes the overall structural layout of the pool, and improves space utilization.

[0042] In this embodiment, each flow-making pump is equipped with a flow meter 3 and a pressure gauge 4. These sensors can provide accurate flow and pressure data. When the flow begins, the control system independently adjusts the operating parameters of each pump, including flow and head, based on the data collected in real time by the flow meter 3 and the pressure gauge 4, to achieve uniform flow throughout the entire pool, or to perform local or oblique local flow creation according to specific test requirements; therefore, the control system ensures that each pump can flexibly and accurately adjust its operating state in different experimental scenarios to achieve the best flow-making effect. In addition, the multi-pump collaborative control system can also ensure that even if some of the flow-making pumps 2 fail, the flow-making test can continue. The flow-making pumps 2 on each side can operate independently and serve as backup for each other. The control system will automatically detect the pump status and quickly switch to the backup pump when a failure occurs. This design not only improves the overall reliability of the system, but also ensures the continuity and stability of the flow-making test.

[0043] Furthermore, the flow-making water pumps of this embodiment include 24 outflow water pumps and 24 return water pumps, and adopt large-scale air-permeable low-lift, large-flow through-flow water pumps, which optimize the operation efficiency of the water pumps. The selection and configuration of the water pumps are carefully calculated to ensure that energy consumption is minimized while meeting the flow-making needs; the water pumps are monitored and adjusted in real time through the control system to ensure that the water pumps always operate within the optimal efficiency range, thereby reducing energy consumption and reducing operating costs.

[0044] Furthermore, the lower annular return corridor 5, the pool bottom gradient section outflow corridor 6, and the upper corridor 7 of this embodiment are all constructed of concrete materials to ensure their durability and easy maintenance. Since the concrete corridor is directly used for water return, no additional metal or plastic pipe system is required, which significantly reduces material costs and subsequent maintenance costs. At the same time, the optimization of the corridor design also reduces the construction materials and time required during the construction process.

[0045] Furthermore, the opening of the cross section of the outflow gallery 6 of the gradient section at the bottom of the pool in this embodiment gradually increases from one end connected to the flow-making water pump 2 to the other end, and the opening of the cross section of the upper gallery 7 gradually increases from one end connected to the flow-making water pump 2 to the other end. This design is to facilitate the pumping or drainage of the flow-making water pump 2 and improve efficiency.

[0046] In summary, the multi-channel flow-making device and flow-making method of the present invention form an efficient water circulation system by arranging 24 large-scale air-permeable, low-lift, large-flow cross-flow water pumps on both sides of the bottom 1 of the large test water pool, and cooperate with the design of the lower annular return corridor 5 and the upper corridor 7 to achieve uniform water flow distribution in the entire water pool, optimize the water pump operation efficiency and control system, and improve the reliability and continuity of the entire system, thereby achieving the purpose of efficient, flexible, low-cost and reliable flow creation.

[0047] In the description of the present application, it should be understood that the terms "front", "rear", 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 the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] The above disclosed embodiments of the present application are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the application to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can understand and use the present application well.

Claims

1. A multi-channel flow-generating device for a large test pool, characterized in that: include: A large test pool bottom (1), a flow pump (2), a flow meter (3), a pressure gauge (4), a lower annular recirculation corridor (5), a pool bottom gradient section outflow corridor (6), an upper corridor (7) and a control system; The bottom gradient section outflow gallery (6) is respectively arranged on both sides of the bottom of the large test water pool, a flow pump (2) is arranged outside the bottom gradient section outflow gallery (6), an upper gallery (7) is arranged outside the flow pump (2), and both ends of the flow pump (2) are connected to the bottom gradient section outflow gallery (6) and the upper gallery (7), respectively. The lower annular return flow gallery (5) is horizontally arranged in an annular direction at the lower periphery of the bottom (1) of the large test water pool, and the two upper galleries (7) are respectively located above both sides of the lower annular return flow gallery (5) and arranged along the wall of the large test water pool, the upper gallery (7) is connected to the lower annular return flow gallery (5), and the lower annular return flow gallery (5) is filled with water; The flow-generating water pump (2) on one side of the bottom (1) of the large test pool serves as an outflow water pump for pumping water, and the flow-generating water pump (2) on the other side serves as a return water pump for draining water; Each of the flow-generating water pumps (2) is equipped with a flow meter (3) and a pressure meter (4), wherein the flow meter (3) is used to collect flow data of the flow-generating water pump (2), and the pressure meter (4) is used to collect pressure data of the flow-generating water pump (2); The control system is electrically connected to the flow meter (3) and the pressure meter (4). The control system is capable of real-time monitoring and adjustment of the operating state of the flow pump (2). The operating parameters of the flow pump (2) can be adjusted according to data collected by the flow meter (3) and the pressure meter (4), and the operating state of the flow pump (2) can be adjusted according to test requirements.

2. A multi-channel flow-generating device for a large test pool according to claim 1, characterized in that: The flow-generating water pump (2) is a large-scale air-permeable, low-lift, large-flow through-flow water pump.

3. A multi-channel flow-generating device for a large test pool according to claim 1, characterized in that: The outflow water pumps and the return water pumps are equipped with 24 each.

4. A multi-channel flow-generating device for a large test pool according to claim 1, characterized in that: The lower annular recirculation corridor (5), the pool bottom gradient section outflow corridor (6), and the upper corridor (7) are all constructed using concrete materials.

5. The multi-channel flow-generating device for a large test pool according to claim 1, characterized in that: The opening of the cross section of the outflow gallery (6) of the pool bottom gradient section gradually increases from one end connected to the flow-making water pump (2) to the other end.

6. A multi-channel flow-generating device for a large test pool according to claim 1, characterized in that: The opening of the cross section of the upper gallery (7) gradually increases from one end connected to the flow-generating water pump (2) to the other end.

7. A multi-channel flow generation method for a large test pool, using the flow generation device as described in any one of claims 1 to 6 to generate flow, characterized in that: When the flow generation is started, the outflow pump on one side of the bottom (1) of the large test pool pumps the water in the lower annular return flow corridor (5) to the upper corridor (7). After the water passes through the pump body, it flows into the bottom (1) of the large test pool through the outflow corridor (6) of the pool bottom gradient section, forming a water flow circulation in the whole area. After the water flows through the whole pool, it passes through the outflow corridor (6) of the pool bottom gradient section on the other side, and then the return water pump discharges the water into the upper corridor (7), and then flows back to the lower annular return flow corridor (5) again, completing a complete water flow circulation process.

8. A multi-channel flow generation method for a large test pool according to claim 7, characterized in that: When water flows through the outflow water pump and the return water pump, the flow meter (3) and the pressure meter (4) collect data on the water flow rate and the pressure inside the pump body in real time, and the control system monitors the operating status of the outflow water pump and the return water pump in real time and makes timely adjustments.

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