Connection device for an acoustic doppler current profiler
By using a combination structure of connecting flange, cylinder, fixing plate and clamp, the problems of unstable fixation and high cost of acoustic Doppler current profiler on the test ship were solved, and the reliable fixation of the equipment and the guarantee of measurement accuracy were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KUNMING SHIP EQUIPMENT RESEARCH & TESTING CENTER (CHINA SHIPBUILDING CORP 750 TEST SITE)
- Filing Date
- 2023-10-19
- Publication Date
- 2026-06-19
AI Technical Summary
Existing connection devices for connecting acoustic Doppler current profilers to test vessels suffer from problems such as unstable fixation and high cost, which affect measurement accuracy and the reliability of verification tests.
The ADCP equipment is fixed to the test vessel using a combination structure of connecting flange, connecting cylinder, short fixing plate, long fixing plate and clamp. Rubber pads are used to enhance the connection stability. The structure is simple and the material cost is low.
This enabled the reliable mounting of the ADCP equipment on the test vessel, reducing the cost of verification testing while ensuring measurement accuracy and equipment stability, and avoiding unnecessary expenses.
Smart Images
Figure CN117662944B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of acoustic Doppler current profiler applications, and particularly relates to a connection device for an acoustic Doppler current profiler. Background Technology
[0002] In the field of marine exploration technology, due to the transmission attenuation caused by seawater, electromagnetic waves and strong laser light waves have difficulty penetrating a distance greater than 1 km in seawater. However, the attenuation of sound waves in the ocean is only one-thousandth that of electromagnetic waves (low-frequency sound waves can propagate for hundreds of kilometers in shallow seas and tens of thousands of kilometers in the open ocean). Therefore, the sound field has become one of the physical fields that can be practically applied to long-distance propagation in the ocean. Studying ocean sound waves has also become an important tool for understanding and studying the ocean.
[0003] The Acoustic Doppler Current Profiler (ADCP) is a novel acoustic current measurement device developed using the Doppler effect of sound waves. It can measure both the absolute velocity of water flow relative to the seabed and the relative velocity of the current across the entire depth profile. Because ADCP uses acoustic telemetry, it does not interfere with the measured flow field and can obtain high-precision velocity information. It can be used for positioning and navigation, and is widely applied in marine and inland lake and river engineering and research fields, including comparative verification of ocean currents with advanced marine observation equipment such as ground-wave radar. Therefore, it has been designated by the International Oceanographic Commission as one of the four advanced marine observation instruments.
[0004] In some scientific research activities, before officially using ADCP equipment for measurements, a small number of verification tests need to be conducted to confirm whether the ADCP equipment functions properly and whether the measurement accuracy meets the requirements. This can be achieved by installing the ADCP at an appropriate position on a test vessel, submerging the measuring probe in the water, and sailing the vessel at a set speed and course. The consistency between the data measured by the equipment during navigation and the actual navigation conditions can then be observed. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of existing connection devices and provide a connection device for an acoustic Doppler current profiler.
[0006] This invention discloses a connecting device for an acoustic Doppler current profiler, which connects a test vessel and an ADCP device. It includes a connecting flange, a connecting cylinder, short fixing plates, long fixing plates, and clamps. The connecting flange is welded to the upper end of the connecting cylinder. Two short fixing plates and two long fixing plates are welded to the connecting cylinder below the connecting flange. The two short fixing plates are welded at symmetrical positions around the circumference of the connecting cylinder, and the two long fixing plates are welded at symmetrical positions around the circumference of the connecting cylinder. Adjacent short and long fixing plates are spaced 90° apart on the circumference of the connecting cylinder. Bolt holes are provided at the lower ends of the short and long fixing plates. The lengths of the two long fixed plates are both longer than the length of the connecting cylinder, and the lengths of the two long fixed plates are greater than the lengths of the two short fixed plates. The connecting flange is connected to the flange of the test vessel by bolts and nuts. The ADCP device is inserted into the space enclosed by the two short fixed plates, the two long fixed plates, and the connecting cylinder. The two semi-circular clamps are aligned with the bolt holes of the two short fixed plates or the two long fixed plates. The bolts pass through the two semi-circular clamps and the short fixed plates respectively, and the nuts are tightened on the bolts to fix the ADCP device and the two short fixed plates together. The bolts pass through the two semi-circular clamps and the long fixed plates, and the nuts are tightened on the bolts to fix the ADCP device and the two long fixed plates together.
[0007] The connection device for the acoustic Doppler current profiler of the present invention further includes a rubber pad installed between the semi-circular clamp and the ADCP device.
[0008] The connecting device for the acoustic Doppler current profiler of the present invention, wherein the connecting cylinder is a hollow cylindrical tube.
[0009] The connecting device for the acoustic Doppler current profiler of the present invention, wherein the diameter of the connecting cylinder welded to the connecting flange at the short fixing plate 4 and the long fixing plate of the connecting cylinder is smaller than the diameter of the connecting cylinder to which the short fixing plate 4 and the long fixing plate are welded.
[0010] The connection device for the acoustic Doppler current profiler of the present invention includes a plurality of connection holes on the connection flange, the number of which is the same as the number of connection holes on the flange of the test vessel.
[0011] The connection device of the acoustic Doppler current profiler of the present invention has a certain distance greater than the length of the bolt connecting the test ship and the connecting flange.
[0012] The connection device for the acoustic Doppler current profiler of the present invention has a simple structure and good mechanical properties, which can ensure that the equipment is reliably fixed to the test ship. It can ensure that the ADCP equipment is reliably fixed to the test ship with low material and processing costs, and avoid excessive unnecessary expenses in a small number of verification tests. Attached Figure Description
[0013] Figure 1 This is a cross-sectional schematic diagram of the connection device of the acoustic Doppler current profiler of the present invention. The clamp is not shown in the figure for clarity.
[0014] Figure 2 A perspective view of the connection device for the acoustic Doppler current profiler, which is equipped with the experimental vessel and ADCP equipment.
[0015] Figure 3 An exploded perspective view of the connection device of the acoustic Doppler current profiler, which is equipped with the experimental vessel and ADCP equipment.
[0016] exist Figures 1 to 3 In the diagram, number 1 represents the connecting flange; number 2 represents the connecting hole; number 3 represents the connecting cylinder; number 4 represents the short fixing plate; number 5 represents the long fixing plate; number 6 represents the clamp; number 7 represents the rubber gasket; number 8 represents the test vessel; number 9 represents the ADCP equipment; and number 10 represents the bolt hole. Detailed Implementation
[0017] like Figures 1 to 3 As shown, the connecting device of the acoustic Doppler current profiler of the present invention is a connecting device that connects the test ship 8 and the ADCP equipment 9 together. It includes: a connecting flange 1, a connecting cylinder 3, a short fixing plate 4, a rubber pad 7, a long fixing plate 5, and a clamp 6. The connecting flange 1 is welded to the upper end of the connecting cylinder 3. The connecting cylinder 3 is a hollow cylindrical tube. Two short fixing plates 4 and two long fixing plates 5 are welded to the connecting cylinder 3 below the connecting flange 1. The two short fixing plates 4 are respectively welded to symmetrical positions on the circumference of the connecting cylinder 3. The two long fixing plates 5 are respectively welded to symmetrical positions on the circumference of the connecting cylinder 3. Adjacent short fixing plates 4 and long fixing plates 5 are 90° apart on the circumference of the connecting cylinder 3. The diameter of the connecting cylinder 3 from the short fixing plates 4 and long fixing plates 5 welded to the connecting flange 1 is smaller than the diameter of the connecting cylinder 3 with the short fixing plates 4 and long fixing plates 5 welded to it. Bolt holes 10 are provided at the lower ends of the short fixing plate 4 and the long fixing plate 5. The lengths of the two short fixing plates 4 and the two long fixing plates 5 are all longer than the length of the connecting cylinder 3, and the lengths of the two long fixing plates 5 are greater than the lengths of the two short fixing plates 4.
[0018] like Figure 2 and Figure 3As shown, the connecting flange 1 has several connecting holes 2, the number of which is the same as the number of connecting holes on the flange of the test vessel 8. The connecting flange 1 is connected to the flange of the test vessel 8 by bolts and nuts. The ADCP device 9 is inserted into the space enclosed by two short fixing plates 4, two long fixing plates 5, and a connecting cylinder 3. Two semi-circular clamps 6 are aligned with the bolt holes 10 of the two short fixing plates 4 or the two long fixing plates 5. The bolts pass through the two semi-circular clamps 6 and the short fixing plates 4, and the nuts are tightened on the bolts to fix the ADCP device 9 and the two short fixing plates 4 together. The bolts pass through the two semi-circular clamps 6 and the long fixing plates 5, and the nuts are tightened on the bolts to fix the ADCP device 9 and the two long fixing plates 5 together. A rubber gasket 7 is installed between the semi-circular clamps 6 and the ADCP device 9.
[0019] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.
Claims
1. A connection device for an acoustic Doppler current profiler, which is a connection device for connecting a test boat (8) and an ADCP device (9) together, which comprises: The connecting flange (1), connecting cylinder (3), short fixing plate (4), long fixing plate (5), and clamp (6) are characterized in that: the connecting flange (1) is welded to the upper end of the connecting cylinder (3), and two short fixing plates (4) and two long fixing plates (5) are welded to the connecting cylinder (3) below the connecting flange (1). The two short fixing plates (4) are respectively welded to symmetrical positions on the circumference of the connecting cylinder (3), and the two long fixing plates (5) are respectively welded to symmetrical positions on the circumference of the connecting cylinder (3). The adjacent short fixing plates (4) and long fixing plates (5) are 90° apart on the circumference of the connecting cylinder (3). Bolt holes (10) are opened at the lower ends of the short fixing plates (4) and long fixing plates (5). The lengths of the two short fixing plates (4) and the two long fixing plates (5) are all longer than the length of the connecting cylinder (3). The length of the two long fixing plates (5) is greater than the length of the two short fixing plates (4). The connecting flange (1) is connected to the flange of the test ship (8) by bolts and nuts. The ADCP device (9) is inserted into the space enclosed by the two short fixing plates (4), the two long fixing plates (5) and the connecting cylinder (3). The two semi-circular clamps (6) are aligned with the bolt holes (10) of the two short fixing plates (4) or the two long fixing plates (5). The bolts pass through the two semi-circular clamps (6) and the short fixing plates (4) respectively. The nuts are tightened on the bolts to fix the ADCP device (9) and the two short fixing plates (4) together. The bolts pass through the two semi-circular clamps (6) and the long fixing plates (5). The nuts are tightened on the bolts to fix the ADCP device (9) and the two long fixing plates (5) together.
2. The acoustic Doppler current profiler connection apparatus of claim 1, wherein: It also includes a rubber pad (7) which is fitted between the semi-circular clamp (6) and the ADCP device (9).
3. The acoustic Doppler current profiler connection apparatus of claim 2, wherein: The connecting cylinder (3) is a hollow cylindrical tube.
4. The acoustic Doppler current profiler connection apparatus of claim 3, wherein: The diameter of the connecting cylinder (3) welded to the connecting flange (1) at the short fixing plate (4) and long fixing plate (5) of the connecting cylinder (3) is smaller than the diameter of the connecting cylinder (3) with the short fixing plate (4) and long fixing plate (5) welded on.
5. The acoustic Doppler current profiler connection apparatus of claim 4, wherein: The connecting flange (1) has several connecting holes (2), and the number of connecting holes (2) is the same as the number of connecting holes on the flange of the test ship (8).