Underwater multifunctional flow generation trailer device applied to ocean engineering deepwater experiment pool and flow generation method

Abstract

The invention discloses an underwater multifunctional flow making trailer device applied to an ocean engineering deepwater experiment pool, and relates to the technical field of ocean engineering experiments. Comprising a detachable track connected with a lifting floating bottom of a laboratory; a guide wheel group is arranged at the bottom of the underwater trailer and is in sliding fit with the detachable track; one end of the underwater drag chain is fixed to the underwater trailer, the other end of the underwater drag chain is connected to the power transfer box, a power supply cable and a signal line are integrated in the underwater drag chain, and power is provided for the underwater trailer and data are transmitted; and the power supply transfer box is fixed on the side wall of the pool or the floating bottom structure, is connected with an external power supply and a control system through a waterproof joint, and is in butt joint with a power supply cable and a signal line in the underwater drag chain, so that remote power supply and control of the trailer are realized. The device has excellent working condition adaptability and long-term operation reliability, can ensure continuous and stable work under various complex test conditions, and provides technical support for ocean engineering deepwater experiment research.

Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering experiments, and in particular to an underwater multifunctional flow-making trailer device and a flow-making method used in a deep-water experimental pool of marine engineering. Background Art

[0002] In the field of marine resource development, marine structures such as ships and offshore platforms are subject to the combined effects of wind, waves, and currents during their actual service life. Due to the significant complexity and variability of the marine environment, coupled with insufficient engineering experience and technical accumulation, current performance research on marine structures still relies heavily on physical model testing in laboratory tanks.

[0003] In the test process of simulating the impact of marine environmental loads on structures, the accurate simulation of environmental loads is a key technical difficulty, among which flow generation technology is particularly critical. There are two main flow generation methods used in the existing technology: one is the external circulation flow generation system, and the other is the internal up-and-down circulation flow generation system based on the floating bottom structure. However, both technical solutions have obvious limitations: first, the system operation energy consumption is high, resulting in a significant increase in test costs; second, the uniformity and stability of the flow field are difficult to ensure, affecting the reliability of the test data; third, the system maintenance is complex, which is not conducive to long-term stable operation. Summary of the Invention

[0004] The purpose of the present invention is to provide an underwater multifunctional flow-generating trailer device and a flow-generating method for use in deep-water experimental pools for marine engineering, which has excellent adaptability to working conditions and long-term operational reliability, can ensure continuous and stable operation under various complex test conditions, and provide technical support for deep-water experimental research in marine engineering.

[0005] To achieve the above objectives, the technical solution of the present application is: an underwater multifunctional flow-generating trailer device for use in a deep-water experimental pool for marine engineering, comprising:

[0006] Removable track, connected to the laboratory's lifting floating bottom;

[0007] The underwater trailer has a guide wheel set at the bottom, which forms a sliding fit with the detachable track;

[0008] The underwater drag chain has one end fixed to the underwater trailer and the other end connected to the power transfer box. It integrates power supply cables and signal lines to provide power to the underwater trailer and transmit data.

[0009] The power transfer box is fixed on the side wall of the pool or the floating bottom structure, and is connected to the external power supply and control system through a waterproof connector. It is also connected to the power supply cable and signal line in the underwater drag chain to achieve remote power supply and control of the trailer.

[0010] As a preferred scheme of the present application, the underwater trailer comprises:

[0011] The diving motor is used as a power source, and the output shaft thereof is rigidly connected with the input shaft of the underwater speed reducer through a shaft coupling.

[0012] The underwater speed reducer is provided with a driving pinion connected with the output shaft through a key, and a driven pinion fixedly connected with the wheel shaft and the walking wheel.

[0013] As a preferred scheme of the present application, the underwater bearing is arranged between the walking wheel and the wheel shaft.

[0014] As a preferred scheme of the present application, the detachable rails are fixed by bolts after being hoisted to the predetermined position of the lifting floating bottom surface by the travelling crane, and the adjacent detachable rails are connected through flanges and pre-tightening force is applied.

[0015] As a preferred scheme of the present application, the underwater trailer is hoisted by the travelling crane and placed on the detachable rails.

[0016] As a preferred scheme of the present application, the detachable rails are provided with baffle plates and underwater buffers at two ends.

[0017] The present application further provides a flow making method of the underwater multifunctional flow making trailer device applied to the ocean engineering deep water experimental pool, comprising:

[0018] Water pump-free flow making test: the test model is placed on the underwater trailer, and is moved along the rails, so as to realize the water pump-free flow making;

[0019] Water pump-free oblique and transverse flow making test: the detachable rails are adjusted to be oblique or transverse, the test model is placed on the underwater trailer, and is moved along the rails, so as to realize the water pump-free oblique and transverse flow making.

[0020] As a preferred scheme of the present application, the present application further comprises:

[0021] Lateral flow making test: the flow making device is fixed on the lifting floating bottom on one side of the underwater trailer, the test model is placed on the underwater trailer, and is moved along the rails, so as to realize the lateral flow making;

[0022] Forward flow making test: a part of the detachable rails is removed, the test model is fixed on the lifting floating bottom, the water pump is placed on the underwater trailer, and is moved along the rails, so as to realize the forward flow making;

[0023] Opposite flow making test: a double underwater trailer cooperative operation mode is adopted, one of the underwater trailers is placed with the test model, the other is placed with the water pump, and the two are moved along the rails in opposite directions, so as to realize the opposite flow making.

[0024] As a preferred embodiment of the present invention, it also includes:

[0025] Dual-device, dual-model lateral flow-generating test: Two identical underwater multifunctional flow-generating trailers are mounted on a lifting buoy. The flow-generating device is fixed to the lifting buoy on the side of one of the underwater trailers, and the test model is placed on the corresponding underwater trailer. During the test, the two trailers move synchronously along the track, and the lateral flow field generated by the flow-generating device directly acts on the test model. This method realizes the dual-device, dual-model lateral flow-generating test.

[0026] Single-device dual-model lateral flow generation test: The flow generation device is fixed on the lifting buoy on one side of the underwater trailer. Two underwater trailers are installed on the detachable track. The two test models are placed on the corresponding underwater trailers. During the test, the two trailers move synchronously along the track. The lateral flow field generated by the flow generation device directly acts on the test model. In this way, a single-device dual-model lateral flow generation test is realized.

[0027] As a preferred embodiment of the present invention, it also includes:

[0028] Enhanced flow generation test: The test model is placed on an underwater trailer, the flow generation device is fixed to a detachable track, and flow generation is performed on the test model to achieve enhanced flow generation.

[0029] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0030] 1. The structural design is simple and reliable, easy to maintain and easy to upgrade and transform, effectively extending the service life of the equipment and reducing maintenance costs;

[0031] 2. The device is detachable, movable and rotatable, with little interference to other experimental equipment;

[0032] 3. Compared with the traditional integral flow-generating system, this device has lower cost and lower energy consumption, and its operating economy is significantly improved;

[0033] 4. By dragging and moving in conjunction with the lifting bottom, it can flexibly simulate complex water flow environments with different water depths, flow rates and directions;

[0034] 5. It has multifunctional testing capabilities, including water pump-free flow generation test, water pump-free lateral / oblique flow generation test, lateral flow generation test, dual-device dual-model lateral flow generation test, single-device dual-model lateral flow generation test, forward flow generation test, enhanced flow generation test, and opposite flow generation test.

[0035] 6. It can carry test models to achieve relative flow generation and meet diverse experimental needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 This is a schematic diagram of the structure of an underwater multifunctional current-making trailer device;

[0038] Figure 2 This is a schematic diagram of the underwater trailer structure;

[0039] Figure 3 Layout diagram of the flow-making method for the underwater multifunctional flow-making trailer;

[0040] Explanation of the serial numbers in the figure: 1-1 detachable track, 1-2 underwater drag chain and cable, 1-3 underwater trailer, 1-4 power transfer box; 2-1 walking wheel, 2-2 submersible motor, 2-3 underwater reducer, 2-4 driving gear. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0045] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0047] It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and may encompass internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0048] Example 1

[0049] like Figure 1 As shown, this embodiment provides an underwater multifunctional flow-generating trailer device for use in a deep-water experimental pool for marine engineering, comprising:

[0050] The detachable track is fixedly connected to the laboratory's lifting and floating bottom structure by high-strength bolts to ensure the stability of the track during underwater operations; preferably, the detachable track is equipped with vehicle blocks at both ends to prevent the trailer from running overtravel, and is equipped with underwater buffers (such as hydraulic or rubber buffer mechanisms) to absorb impact energy during trailer braking or collision;

[0051] The underwater trailer has a guide wheel set at the bottom, which forms a sliding fit with the detachable track to achieve precise movement of the trailer along the track;

[0052] The underwater drag chain is fixed to the trailer at one end and connected to the power transfer box at the other end. It integrates power cables and signal lines to provide power to the underwater trailer and transmit data. The underwater drag chain adopts a waterproof and sealed design to ensure long-term reliability in deep water environments.

[0053] The power adapter box is fixed to the side wall of the pool or the floating bottom structure. It is connected to the external power supply and control system through waterproof connectors. It is also connected to the cables and signal lines in the underwater drag chain to achieve remote power supply and control of the trailer.

[0054] like Figure 2 As shown, the underwater trailer includes:

[0055] The submersible motor can be a variable frequency motor as the power source and can be adjusted in speed according to the needs; its output shaft is rigidly connected to the input shaft of the underwater reducer through a coupling;

[0056] The underwater reducer has an output shaft that drives the driving gear through a key connection, and the driven gear is fixedly connected to the running wheel through the wheel shaft, and an underwater bearing is set between the running wheel and the wheel shaft;

[0057] Underwater speed sensor, real-time feedback of trailer running speed;

[0058] Underwater displacement sensor for precise control of trailer travel position;

[0059] The submersible motor and underwater reducer are fastened to the vehicle body base via a positioning bolt group.

[0060] Example 2

[0061] like Figure 3 As shown, this embodiment provides a flow-generating method for an underwater multifunctional flow-generating trailer device applied to a deep-water experimental pool of an ocean engineering project, comprising:

[0062] 1. Pumpless flow test: The test model is fixed on an underwater trailer, which is moved along the track. The relative motion between the trailer and the water body is used to generate a flow field, thus achieving pumpless flow. Figure 3 As shown in a.

[0063] 2. Pumpless oblique and transverse flow generation test: According to the test requirements, the track of the underwater multifunctional flow generation trailer device is disassembled, reorganized or extended, and the track layout direction is adjusted to be oblique or transverse. The test model is fixed on the underwater trailer, and the trailer moves along the adjusted track direction to achieve pumpless oblique or transverse flow generation, such as Figure 3 As shown in b.

[0064] 3. Lateral flow test: The flow device is fixedly installed on one side of the underwater multifunctional flow trailer, and the test model is fixedly installed on the underwater trailer. During the test, the trailer is driven along the track, and the laterally installed flow device is started at the same time, so that the flow direction is aligned with the side of the trailer, so as to achieve lateral flow. Figure 3 As shown in c.

[0065] 4. Dual-device, dual-model lateral flow generation test: Two underwater multifunctional flow-generating trailers with the same configuration are fixed in parallel on a lifting buoy. A flow-generating device is fixed on one side of one trailer, and a test model is fixed on the other trailer. During the test, the two trailers are driven synchronously along the track, and the lateral flow field generated by the flow-generating device acts on the test model. In this way, dual-vehicle, dual-model lateral flow generation is achieved, such as Figure 3 As shown in d.

[0066] 5. Single-device dual-model lateral flow test: The flow-generating device is fixedly installed on one side of the underwater multifunctional flow-generating trailer device. Two underwater trailers are installed on the same track, and the two test models are fixedly installed on these two trailers respectively. During the test, the two trailers are synchronously driven along the track. The lateral flow field generated by the flow-generating device acts on the two test models at the same time. In this way, a single-device dual-model lateral flow-generating test is realized, such as Figure 3 As shown in e.

[0067] 6. Forward flow test: remove the second half of the track and fix the test model on the lifting float. Install the water pump on the underwater trailer and drive the trailer to move along the remaining track so that the water pump will face the test model to generate a flow field. In this way, forward flow can be achieved. Figure 3 As shown in f.

[0068] 7. Enhanced flow test: The test model is fixed on the underwater trailer, and the flow device is fixed on the track. During the test, the trailer is driven to move the model, and the fixed flow device is started to generate a superimposed flow field facing the moving test model. In this way, the flow is enhanced, such as Figure 3 As shown in g.

[0069] 8. Countercurrent test: Two underwater trailers are installed on the track, with the test model fixed on one trailer and a water pump installed on the other trailer. During the test, the two trailers are driven to move towards each other along the track so that the flow field generated by the water pump is in the opposite direction of the model's movement, thus achieving countercurrent generation. Figure 3 As shown in h.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An underwater multifunctional flow-making trailer device used in deep-water experimental pools of marine engineering, characterized in that: include: Removable track, connected to the laboratory's lifting floating bottom; The underwater trailer has a guide wheel set at the bottom, which forms a sliding fit with the detachable track; The underwater drag chain has one end fixed to the underwater trailer and the other end connected to the power transfer box. It integrates power supply cables and signal lines to provide power to the underwater trailer and transmit data. The power transfer box is fixed on the side wall of the pool or the floating bottom structure, and is connected to the external power supply and control system through a waterproof connector. It is also connected to the power supply cable and signal line in the underwater drag chain to achieve remote power supply and control of the trailer.

2. The underwater multifunctional flow-generating trailer device used in a deep-water experimental pool for marine engineering according to claim 1, characterized in that: The underwater trailer comprises: The submersible motor, as the power source, has its output shaft rigidly connected to the input shaft of the underwater reducer through a coupling; The output shaft of the underwater reducer drives the driving gear through a key connection, and the driven gear is fixedly connected to the running wheel through the wheel shaft.

3. The underwater multifunctional flow-generating trailer device used in a deep-water experimental pool for marine engineering according to claim 2, characterized in that: An underwater bearing is provided between the running wheel and the wheel axle.

4. The underwater multifunctional flow-generating trailer device used in a deep-water experimental pool for marine engineering according to claim 1, characterized in that: After the detachable rails are hoisted to a predetermined position on the surface of the lifting bottom by a crane, they are fixed with bolts. Adjacent detachable rails are connected by flanges and pre-tightening force is applied.

5. The underwater multifunctional flow-generating trailer device used in a deep-water experimental pool for marine engineering according to claim 1, characterized in that: The underwater trailer is hoisted by a crane and placed on a detachable track.

6. The underwater multifunctional flow-generating trailer device used in a deep-water experimental pool for marine engineering according to claim 1, characterized in that: Baffles and underwater buffers are provided at both ends of the detachable track.

7. A flow-generating method for an underwater multifunctional flow-generating trailer device used in a deep-water experimental pool of an ocean engineering project, characterized in that: include: Water pump-free flow test: The test model is placed on an underwater trailer and moved along the track to achieve water pump-free flow generation; Pumpless oblique and lateral flow generation test: Adjust the detachable track to an oblique or lateral direction, place the test model on an underwater trailer, and move it along the track to achieve pumpless oblique and lateral flow generation.

8. The flow-generating method of the underwater multifunctional flow-generating trailer device used in a deep-water experimental pool of an ocean engineering project according to claim 7, characterized in that: Also includes: Lateral flow generation test: The flow generation device is fixed to the lifting buoy on one side of the underwater trailer. The test model is placed on the underwater trailer and moved along the track to achieve lateral flow generation. Positive flow test: remove part of the detachable track, fix the test model to the lifting floating bottom, place the water pump on the underwater trailer, move it along the track, and create flow towards the test model, in this way to achieve positive flow; Countercurrent generation test: A dual underwater trailer collaborative operation mode is used, with the test model placed on one and the water pump placed on the other. The two move in opposite directions along the track to achieve countercurrent generation.

9. The method for generating flow by using an underwater multifunctional flow generating trailer device for use in a deep-water experimental pool for marine engineering according to claim 7, characterized in that: Also includes: Dual-device, dual-model lateral flow-generating test: Two identical underwater multifunctional flow-generating trailers are mounted on a lifting buoy. The flow-generating device is fixed to the lifting buoy on the side of one of the underwater trailers, and the test model is placed on the corresponding underwater trailer. During the test, the two trailers move synchronously along the track, and the lateral flow field generated by the flow-generating device directly acts on the test model. This method realizes the dual-device, dual-model lateral flow-generating test. Single-device dual-model lateral flow generation test: The flow generation device is fixed on the lifting buoy on one side of the underwater trailer. Two underwater trailers are installed on the detachable track. The two test models are placed on the corresponding underwater trailers. During the test, the two trailers move synchronously along the track. The lateral flow field generated by the flow generation device directly acts on the test model. In this way, a single-device dual-model lateral flow generation test is realized.

10. The flow-generating method of the underwater multifunctional flow-generating trailer device used in a deep-water experimental pool of marine engineering according to claim 7, characterized in that: Also includes: Enhanced flow generation test: The test model is placed on an underwater trailer, the flow generation device is fixed to a detachable track, and flow generation is performed on the test model to achieve enhanced flow generation.

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