System and method for detecting the relationship between pipeline and vibration absorber installation parameters and acoustic quality

Abstract

The present invention proposes a system and method for detecting the relationship between the installation parameters of pipelines and vibration dampers and their acoustic quality. The method forms a system for detecting the relationship between the installation parameters of pipelines and vibration dampers and their acoustic quality through the coordination of a pipeline system, a vibration isolation system, a vibration isolation platform, and a monitoring system. The system is used to detect the acoustic quality of pipelines and vibration dampers, reduce the vibration noise of vibration dampers or pipeline systems installed on actual ships, and solve the technical problems of acoustic detection of vibration dampers and pipelines. The present invention can simulate the different installation conditions of various pipeline systems and equipment vibration dampers on actual ships, can easily and quickly change various installation parameters, conduct large-scale, rapid, and comprehensive experimental research, guide actual ship installation, improve the acoustic quality of pipeline systems and equipment, reduce the impact of vibration dampers or pipeline systems on the acoustic effects of ships, save manpower and material resources, and improve detection and construction efficiency. It is suitable for application as a system and method for detecting the relationship between the installation parameters of pipelines and vibration dampers and their acoustic quality.

Description

Technical Field

[0001] The present invention relates to the field of shipbuilding, and in particular to acoustic detection of pipelines and shock absorbers, and more specifically to a detection system and method for the relationship between installation parameters of pipelines and shock absorbers and acoustic quality. Background Art

[0002] The piping system is an important channel for ship vibration transmission, and the vibration absorber is the most important means to reduce equipment vibration. The installation quality of the piping system and vibration absorber directly affects the realization of the ship's acoustic design indicators.

[0003] Many installation parameters, such as pipe deformation, pipe mounting surface deflection, pipe support position, pipe elbow radius, damper deformation, and damper static stiffness, can affect the acoustic quality of the piping system and damper, impacting the vibration of the piping system and equipment. In the past, extensive testing was required to study the relationship between various piping system and damper installation parameters and acoustic quality, guide actual ship installation, and ensure the achievement of ship acoustic design specifications.

[0004] Traditional test platforms can only meet the acoustic quality testing requirements of a single piping system and damper type. Changing piping, damper types, and their various installation parameters requires significant manpower, material resources, and time, making it impossible to conduct extensive, rapid, and comprehensive testing and research. There is an urgent need to develop a testing system that can simulate the installation of various types of piping systems and equipment dampers on a real ship, allowing for quick and easy changes in installation parameters to conduct installation acoustic quality testing. This system can study the relationship between installation parameters and acoustic quality, provide guidance for onboard installation, improve the acoustic quality of piping systems and equipment, and reduce ship vibration noise. Summary of the Invention

[0005] To reduce the acoustic testing time for vibration dampers and piping systems and mitigate the vibration noise caused by them, this invention proposes a system and method for testing the relationship between piping and vibration damper installation parameters and acoustic quality. This method utilizes a piping system, a vibration isolation system, a vibration isolation platform, and a monitoring system to construct a system for testing the relationship between piping and vibration damper installation parameters and acoustic quality. This system is used to test the acoustic quality of piping and vibration dampers, reducing the vibration noise caused by actual ship installation of vibration dampers or piping systems, and addressing the technical challenges of acoustic testing for vibration dampers and piping.

[0006] The solution adopted by the present invention to solve the technical problem is: a system and method for detecting the relationship between pipeline and vibration absorber installation parameters and acoustic quality, including a system for detecting the relationship between pipeline and vibration absorber installation parameters and acoustic quality, and a method for detecting the relationship between pipeline and vibration absorber installation parameters and acoustic quality using the system.

[0007] Among them, the detection system for the relationship between pipeline and vibration absorber installation parameters and acoustic quality includes a water tank, a pipeline system, a vibration isolation system, a vibration isolation platform and a monitoring system.

[0008] The piping system is composed of pipes that connect the water tank and the equipment to form a loop. The pipe connecting the water tank to the equipment is the water inlet pipe, and the pipe from the equipment to the water tank is the water outlet pipe.

[0009] The piping system consists of several sections of pipes. The water inlet pipe from the water tank to the equipment is, in sequence, a general pipe, a vibration-damping pipe, a general pipe, an adjustment gasket pipe section, a vibration-damping pipe, a transition pipe section, a general pipe, a pipe elbow, and a vibration-damping pipe, and is connected to the equipment through a flange. The installation order of the water outlet pipe from the equipment to the water tank is opposite to that of the water inlet pipe, and the equipment is similarly connected to the water outlet pipe through a flange; the pipes are connected through flanges, and flange adjustment gaskets are provided on the opposite surfaces of the two flanges to ensure the sealing of the connection between the pipes.

[0010] The piping system is supported by a number of pipe supports, and rubber vibration dampers are arranged between the pipe supports and the base. The number of pipe supports is set according to the length of the piping system. The pipe supports are fixed to the vibration isolation platform by quick locking pins to ensure that the pipes do not prolapse or deform, limit the spatial movement of the pipes, and reduce the vibration transmission from the pipes to the hull structure.

[0011] The vibration isolation system includes a vibration absorber mounting plate, a vibration absorber, an intermediate mass block, and an adjustment gasket. The vibration absorber mounting plate is welded to the vibration isolation platform and is provided with holes of different diameters to facilitate the quick installation of vibration absorbers of different models. The vibration absorber is divided into two layers, the lower layer of which is quickly fixed to the vibration absorber mounting plate by a quick locking pin, and the upper layer of which is padded with an adjustment gasket. An intermediate mass block is provided between the two layers of vibration absorbers to achieve vibration isolation of the equipment.

[0012] The vibration isolation platform is connected to the base through a low-frequency vibration absorber to ensure that the piping system and the vibration isolation system on the vibration isolation platform are isolated from external vibrations; the upper surface of the vibration isolation platform is evenly provided with openings, and the openings and quick locking pins are used to realize the replacement and installation of pipe supports and vibration absorbers at any position on the vibration isolation platform.

[0013] The vibration isolation platform is embedded with a slideway, and the slideway power system drives the movable area of ​​the vibration isolation platform to move along the slideway, thereby realizing the rapid replacement of vibration reduction pipes, general pipelines and flange gaskets.

[0014] The slide power system includes a lifting lug welded and fixed to the movable area of ​​the vibration isolation platform, a concave claw is provided on the lifting lug, a transmission rod is welded and fixed to the outside of the concave claw, and the transmission rod is connected to the reciprocating push rod stepper motor. The movement of the reciprocating push rod stepper motor is controlled by a controller, which then drives the concave claw to pull the lifting lug welded on the movable area of ​​the vibration isolation platform, so that the movable area of ​​the vibration isolation platform moves along the slide.

[0015] The monitoring system includes a vibration damping pipe deformation monitoring device and a shock absorber deformation monitoring device. The vibration damping pipe deformation monitoring device is clamped on the flange on which the vibration damping pipe is installed, and monitors in real time whether the vibration damping pipe is deformed. The shock absorber deformation monitoring device is set on one side of the shock absorber, and monitors in real time whether the shock absorber is deformed.

[0016] The device is connected to the control cabinet via a cable, and the frequency conversion of the device is adjusted by operating the control cabinet, thereby outputting excitations of different frequencies to the vibration absorber.

[0017] The vibration isolation platform is also provided with several temporary pipeline support frames, which can also be conveniently and quickly installed on any opening on the vibration isolation platform through quick locking pins, so as to facilitate temporary support of the pipeline system when replacing vibration reduction pipes, pipe supports, etc.

[0018] The method for detecting the relationship between the installation parameters of pipelines and shock absorbers and acoustic quality using the above system includes the following methods:

[0019] 1) Testing method for the relationship between vibration damping pipe installation parameters and acoustic quality:

[0020] Factors that affect the vibration isolation effect of the vibration damping pipe include deformation of the vibration damping pipe, deflection of the installation surface, and the type of vibration damping pipe. The above system is used to simulate the parameter changes in these three situations and test the relationship between the vibration damping pipe installation parameters and acoustic quality:

[0021] a. Deformation of vibration damping pipe:

[0022] The vibration-damping pipe is an important vibration-damping component that reduces the vibration of the piping system. Its deformation is uneven and irregular. The real-time data of the vibration-damping pipe deformation monitoring device is monitored. Its vibration isolation effect is tested under different deformation conditions of the vibration-damping pipe, and the relationship between the deformation installation parameters of the vibration-damping pipe and the acoustic quality is tested.

[0023] b. The installation surface of the vibration damping pipe is skewed:

[0024] A deflected mounting surface of the vibration damping nozzle can cause asymmetry in the piping system, affecting the vibration isolation performance of the vibration damping nozzle. By adjusting the thickness of the gasket on one side of the vibration damping nozzle, we simulated the deflection of the two mounting surfaces of the vibration damping nozzle and measured the vibration isolation performance of the vibration damping nozzle under different deflections.

[0025] c. Vibration damping pipe type:

[0026] The entire ship includes multiple types of vibration-damping pipes. The acoustic characteristics of different vibration-damping pipes vary greatly. By changing the type of vibration-damping pipes, the vibration isolation effects of different types of vibration-damping pipes are tested.

[0027] 2) Testing method for the relationship between pipe support installation parameters and acoustic quality:

[0028] Factors that affect the vibration amplitude of the pipe support include the installation position and type of the pipe support. The above system is used to simulate the parameter changes of the pipe support in different situations and to test the relationship between the pipe support installation parameters and acoustic quality:

[0029] a. Pipe support position:

[0030] Pipe supports are important components for reducing vibration transmission from the piping system to the ship's structure. Pipe support position has a certain impact on the acoustic quality of the piping system. Adjust the pipe support position and perform pipe support vibration transmission testing.

[0031] b. Pipe support type:

[0032] The entire ship includes multiple types of pipe supports. The acoustic characteristics of different pipe supports vary greatly. By changing the type of pipe supports, different types of pipe support vibration transmission tests are performed.

[0033] Use a temporary pipe support bracket to support the pipeline, loosen the quick locking pin, change the pipe support type, and test the vibration isolation effect under different installation parameters of different types of pipe supports.

[0034] 3) Testing method for the relationship between pipe elbow radius and acoustic quality:

[0035] In terms of pipeline direction, within a certain layout space, the radius of the pipeline elbow has the greatest impact on acoustics. Pipe elbows with different radii will produce different vibration effects. Pipe vibration detection can be performed by changing the radius of the pipeline elbow.

[0036] 4) Testing method for the relationship between vibration absorber installation parameters and acoustic quality:

[0037] a. Equipment incentives:

[0038] Under different equipment excitations, the acoustic quality of the vibration absorber varies greatly. By changing the output excitation of the equipment, the relationship between the equipment excitation and the acoustic quality of the vibration absorber is studied.

[0039] b. Deformation:

[0040] The acoustic effect of vibration dampers varies depending on the amount of deformation in the entire piping system and equipment during installation. A vibration damper deformation monitoring device is used to monitor vibration damper deformation in real time, testing the vibration isolation effect before and after the installation of the vibration damping pipe and before and after the equipment is installed.

[0041] c. Static stiffness:

[0042] The static stiffness of the vibration absorber and the static stiffness combination of all vibration absorbers under the equipment will affect its acoustic quality. Use the vibration absorber disassembly device to remove the vibration absorber and adjustment gasket, change the static stiffness of the vibration absorber and the static stiffness combination, and test the vibration isolation effect of the vibration absorber under different static stiffness and static stiffness combination.

[0043] d.Shock absorber fit:

[0044] The fit of the shock absorber will affect its acoustic quality. By changing the roughness of the adjustment gasket to simulate the fit of different installation surfaces, the vibration isolation effect of the shock absorber under different fits can be tested.

[0045] e. The shock absorber mounting surface is tilted:

[0046] The deflection of the shock absorber's mounting surface will affect its acoustic quality. By changing the thickness of the adjusting gasket under the shock absorber to simulate different mounting surface deflections, the vibration isolation effect of the shock absorber under different mounting surface deflections was tested, and the relationship between the deflection of the shock absorber's mounting surface and its acoustic quality was studied.

[0047] Positive effect: the system and method for detecting the relationship between the installation parameters of pipelines and shock absorbers and acoustic quality proposed in the present invention can simulate different installation conditions of various pipeline systems and equipment shock absorbers on actual ships through the detection system for the relationship between the installation parameters of pipelines and shock absorbers and acoustic quality. There is no need to conduct multiple tests and tests on the impact of pipeline systems and shock absorbers on ship acoustics. The system can conveniently and quickly change the pipeline system, shock absorber type and various installation parameters, conduct a large number of fast and comprehensive experimental studies, and obtain the relationship between installation parameters and ship acoustic quality, guide actual ship installation, improve the acoustic quality of pipeline systems and equipment, reduce ship vibration noise, reduce the impact of shock absorbers or pipeline systems on ship acoustic effects, avoid repeated disassembly and assembly of pipeline systems, shock absorbers and equipment, save manpower and material resources, and improve detection and construction efficiency. It is suitable for application as a system and method for detecting the relationship between installation parameters of pipelines and shock absorbers and acoustic quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 Schematic diagram of the detection system of the present invention;

[0049] Figure 2 Schematic diagram of a top view of the piping system of the present invention;

[0050] Figure 3 This is a schematic diagram of the installation of the pipe support of the present invention;

[0051] Figure 4 This is a top view of the installation of the shock absorber of the present invention;

[0052] Figure 5 This is a side view of the shock absorber installation of the present invention;

[0053] Figure 6 This is a schematic diagram of the installation of temporary support frame for pipelines;

[0054] Figure 7 This is an enlarged schematic diagram of the pipeline slide and the slide power system;

[0055] Figure 8Schematic diagram of the vibration isolation system structure.

[0056] In the figure, 1. water tank, 2. piping system, 3. equipment, 4. shock absorber, 5. intermediate mass block, 6. shock absorber mounting plate, 7. adjustment gasket, 8. vibration isolation platform, 9. low-frequency vibration absorber, 10. slide, 11. slide power system, 12. control cabinet, 13. quick locking pin, 14. temporary support frame for pipeline, 15. vibration damping pipe deformation monitoring device, 16. vibration damper deformation detection device, 17. vibration damping pipe, 18. valve, 19. general pipeline, 20. adjustment gasket pipe section, 21. flange, 22. flange adjustment gasket, 23. transition pipe section, 24. pipeline elbow, 25. pipe bracket, 251. rubber shock absorber, 26. movable area of ​​vibration isolation platform, 27. lifting ear, 28. concave claw, 29. transmission rod, 30. reciprocating push rod stepper motor, 31. controller, 32. support frame. DETAILED DESCRIPTION

[0057] 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 part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. 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.

[0058] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0059] In the present invention, all embodiments, implementations, and features of the present invention may be combined with each other unless there is any contradiction or conflict. Conventional equipment, devices, components, and the like may be purchased commercially or manufactured based on the disclosure of the present invention. In order to highlight the key points of the present invention, some conventional operations and equipment, devices, and components may be omitted or simply described.

[0060] See Figures 1 to 7 , a system and method for detecting the relationship between pipeline and shock absorber installation parameters and acoustic quality,

[0061] The invention comprises a detection system for the relationship between the installation parameters of pipelines and shock absorbers and the acoustic quality, and a detection method for the relationship between the installation parameters of pipelines and shock absorbers and the acoustic quality using the system.

[0062] The detection system for the relationship between pipeline and vibration absorber installation parameters and acoustic quality includes a water tank 1, a pipeline system 2, a vibration isolation system, a vibration isolation platform 8 and a monitoring system.

[0063] Piping system 2, see the instructions attached Figure 1 , which is composed of a pipe connecting the water tank 1 and the device 3 and forming a loop. The pipe connecting the water tank 1 to the device 3 is the water inlet pipe, and the pipe connecting the device 3 to the water tank 1 is the water outlet pipe.

[0064] The piping system 2 is composed of several sections of pipes. The water inlet pipe from the water tank 1 to the equipment 3 is, in sequence, a general pipe 19, a vibration-damping pipe 17, a general pipe 19, an adjustment gasket pipe section 20, a vibration-damping pipe 17, a transition pipe section 23, a general pipe 19, a pipe elbow 24, and a vibration-damping pipe 17, and is connected to the equipment 3 through a flange 21. The installation order of the water outlet pipe from the equipment 3 to the water tank 1 is opposite to that of the water inlet pipe. Similarly, the equipment 3 is connected to the water outlet pipe through a flange 21; the pipes are connected through flanges 21, and flange adjustment gaskets 22 are provided on the opposite surfaces of the two flanges 21 to ensure the sealing of the connection between the pipes.

[0065] The pipeline system 2 is provided with a valve 18 at least in the pipe section near the vibration damping pipe 17 and before the pipeline elbow 24, and the throttling flow is achieved by opening and closing the valve 18, or the valve 18 is provided in the part where the flow needs to be adjusted according to the length of the pipeline system.

[0066] See the instructions attached Figure 3 The piping system 2 is supported by a number of pipe supports 25. A rubber vibration damper 251 is provided between the pipe support 25 and the base. The number of pipe supports 25 is set according to the length of the piping system 2. The pipe supports 25 are fixed to the vibration isolation platform 8 by quick locking pins 13 to ensure that the pipe does not prolapse or deform, limit the spatial movement of the pipe, and reduce the vibration transmission from the pipe to the hull structure.

[0067] The adjusting gasket pipe section 20 matches the vibration-damping pipe 17 and facilitates the replacement of the vibration-damping pipe 17 .

[0068] Vibration isolation system, see the instructions attached Figure 8, including a shock absorber mounting plate 6, a shock absorber 4, an intermediate mass block 5, and an adjustment gasket 7. The shock absorber mounting plate 6 is welded to the vibration isolation platform 8, and holes of different diameters are opened on it to facilitate the quick installation of shock absorbers 4 of different models; the shock absorber 4 is divided into two layers, the lower shock absorber 4 is quickly fixed on the shock absorber mounting plate 6 by a quick locking pin 13, and the upper shock absorber 4 is padded with an adjustment gasket 7. An intermediate mass block 5 is provided between the two layers of shock absorbers 4 to achieve vibration isolation of the equipment 3.

[0069] The intermediate mass block 5 is a vibration isolation module composed of a structure with a certain rigidity such as a lead steel structure, reinforced concrete, etc. The mass of the intermediate mass block 5 can determine the natural frequency of the vibration isolation system and the vibration attenuation in the medium frequency range, further improving the vibration isolation performance of the vibration isolation system.

[0070] Vibration isolation platform 8, see the instructions attached Figure 1 and attached Figure 4 , connected to the base through the low-frequency vibration absorber 9, ensuring that the pipeline system 2 and the vibration isolation system on the vibration isolation platform 8 are isolated from external vibrations; the upper surface of the vibration isolation platform 8 is evenly provided with openings, and the pipe support 25 and the vibration absorber 4 can be replaced and installed at any position on the vibration isolation platform 8 through the cooperation of the openings and the quick locking pins 13.

[0071] See the instructions attached Figure 7 The vibration isolation platform 8 is embedded with a slide 10, and the slide power system 11 drives the movable area 26 of the vibration isolation platform to move along the slide 10, thereby realizing the rapid replacement of the vibration reduction pipe 17, general pipeline 19 and flange adjustment gasket 22.

[0072] The slide power system 11 includes a lifting ear 27 welded and fixed to the movable area 26 of the vibration isolation platform, and a concave claw 28 is provided on the outer surface of the lifting ear 27. The concave cavity in the concave claw 28 is adapted to the lifting ear 27, so as to firmly grasp the lifting ear 27; a transmission rod 29 is welded and fixed on the outer side of the concave claw 28, and the transmission rod 29 is connected to the reciprocating push rod stepper motor 30. The movement of the reciprocating push rod stepper motor 30 is controlled by the controller 31, and then the concave claw 28 is driven to pull the lifting ear 27 welded on the movable area 26 of the vibration isolation platform, so that the movable area 26 of the vibration isolation platform moves along the slide 10.

[0073] In order to ensure the stable displacement of the slide power system 11 , a support frame 32 may be installed under the reciprocating push rod stepping motor 30 to prevent the slide power system 11 from shaking.

[0074] The monitoring system includes a vibration damping pipe deformation monitoring device 15 and a shock absorber deformation monitoring device 16. The vibration damping pipe deformation monitoring device 15 is clamped on the flange 21 on which the vibration damping pipe 17 is installed, and monitors in real time whether the vibration damping pipe 17 is deformed. The shock absorber deformation monitoring device 16 is set on one side of the shock absorber 4, and monitors in real time whether the shock absorber 4 is deformed.

[0075] As a conventional technical option, the vibration damping pipe deformation monitoring device 15 and the shock absorber deformation monitoring device 16 are connected to the monitoring signal receiving end through a line, or the monitoring signal is transmitted to the detection signal receiving end through wireless communication.

[0076] The device 3 is connected to the control cabinet 12 via a cable. The frequency conversion of the device 3 is adjusted by operating the control cabinet 12, thereby outputting excitations of different frequencies to the vibration absorber 4.

[0077] See the instructions attached Figure 6 The vibration isolation platform 8 is also provided with a number of temporary pipeline support frames 14, which can also be conveniently and quickly installed on any opening on the vibration isolation platform 8 through the quick locking pin 13, so as to facilitate temporary support of the pipeline system 2 when replacing the vibration reduction pipe 17, pipe bracket 25, etc.

[0078] Furthermore, the quick locking pin 13 has multiple models, which are selected according to the type and position of the pipe bracket 25 and the pipeline temporary support frame 14.

[0079] The method for detecting the relationship between the installation parameters of pipelines and shock absorbers and acoustic quality using the above system includes the following methods:

[0080] 1) Testing method for the relationship between installation parameters of vibration damping pipe 17 and acoustic quality:

[0081] Factors that affect the vibration isolation effect of the vibration-damping pipe 17 include deformation of the vibration-damping pipe 17, deflection of the installation surface, and the type of the vibration-damping pipe 17. The above system is used to simulate the parameter changes in these three situations and to test the relationship between the installation parameters of the vibration-damping pipe 17 and the acoustic quality:

[0082] a. Deformation of the vibration damping pipe 17:

[0083] The vibration-damping pipe 17 is an important vibration-damping element for reducing the vibration of the piping system 2. Its deformation is uneven and irregular. The real-time data of the vibration-damping pipe deformation monitoring device 15 is monitored. The vibration isolation effect of the vibration-damping pipe 17 is tested under different deformation conditions. The relationship between the deformation installation parameters of the vibration-damping pipe 17 and the acoustic quality is tested, and the relationship between the deformation of the vibration-damping pipe 17 and its acoustic quality is studied.

[0084] b. The mounting surface of the vibration damping pipe 17 is skewed:

[0085] Deflection of the mounting surface of the vibration-damping nozzle 17 can cause asymmetry in the piping system 2, affecting the vibration isolation performance of the vibration-damping nozzle 17. By varying the thickness of the flange adjustment gasket 22 on the flange 21 on one side of the vibration-damping nozzle 17, we simulated the deflection of the two mounting surfaces of the vibration-damping nozzle 17. The isolation performance of the vibration-damping nozzle 17 under different deflection conditions was measured, and the relationship between the deflection of the mounting surface of the vibration-damping nozzle 17 and acoustic quality was studied.

[0086] Lock the temporary pipeline support frame 14 on the platform through the quick locking pin 13 to temporarily support the vibration damping pipe 17, loosen the flange 21 on one side of the vibration damping pipe 17, turn on the slide power system 11 controller 31, pull the movable area 26 of the vibration isolation platform along the slide 10 through the lifting ear 27, and replace the flange gasket 22 with gaskets with reduced thickness of 2mm, 4mm, 6mm, 8mm, etc., respectively, to simulate the deflection of the installation surface of the vibration damping pipe 17, and test the vibration isolation effect of the vibration damping pipe 17 under different installation surface deflections.

[0087] c. Vibration damping pipe 17 type:

[0088] The entire ship includes multiple types of vibration-damping pipes 17. There are significant differences in the acoustic characteristics of different vibration-damping pipes 17. By changing the types of vibration-damping pipes 17, different types of vibration isolation effects of vibration-damping pipes 17 are tested, and the relationship between the installation parameters of different types of vibration-damping pipes 17 and acoustic quality is studied.

[0089] Lock the temporary pipeline support frame 14 on the platform through the quick locking pin 13 to temporarily support the pipeline, loosen the flange 21, turn on the controller 31, pull the movable area 26 of the vibration isolation platform along the slide 10 through the lifting ear 27, change the type of vibration reduction pipe 17, and test the vibration isolation effect under various installation parameters of different types of vibration reduction pipes 17.

[0090] 2) Testing method for the relationship between pipe support 25 installation parameters and acoustic quality:

[0091] Factors that affect the vibration amplitude of the pipe support 25 include the installation position and type of the pipe support 25. The above system is used to simulate the parameter changes of the pipe support 25 in different situations and to detect the relationship between the pipe support installation parameters and the acoustic quality:

[0092] a. Position of pipe support 25:

[0093] Pipe supports 25 are the most important components for reducing vibration transmission from the piping system 2 to the hull structure. Their position has a certain impact on the acoustic quality of the piping system 2. We adjusted the position of pipe supports 25 and conducted vibration transmission testing on them to investigate the relationship between their position and acoustic quality.

[0094] The pipe support 25 is installed on the vibration isolation platform 8 through the quick locking pin 13. The pipeline is supported by the temporary pipeline support frame 14. The quick locking pin 13 is loosened. The pipe support 25 is moved by distances of 100 mm, 200 mm, 300 mm, 400 mm, and 500 mm respectively, and then the quick locking pin 13 is tightened. The pipe support 25 is re-fixed to test the vibration isolation effect of the pipe support 25 under different working conditions.

[0095] b. Pipe support 25 type:

[0096] The entire ship includes multiple types of pipe supports 25. The acoustic characteristics of different pipe supports 25 vary greatly. By changing the type of pipe supports 25, vibration transmission tests of different types of pipe supports 25 are carried out to study the relationship between the installation parameters of different types of pipe supports 25 and acoustic quality.

[0097] Use the temporary pipeline support frame 14 to support the pipeline, loosen the quick locking pin 13, replace the type of pipe support 25, and test the vibration isolation effect of different types of pipe supports 25 under various installation parameters.

[0098] 3) Testing method for the relationship between the 24mm radius of pipe elbows and acoustic quality:

[0099] In terms of pipeline direction, within a certain layout space, the radius of the pipeline elbow 24 has the greatest impact on acoustics. Pipe elbows 24 with different radii will produce different vibration effects. By changing the radius of the pipeline elbow 24, pipeline vibration detection is carried out to study the relationship between the radius of the pipeline elbow 25 and the acoustic quality.

[0100] Use the temporary pipeline support frame 14 to support the pipeline, loosen the flange 21, and replace the elbow 24 with 1 times, 1.5 times, 2 times, and 2.5 times the pipeline diameter respectively. Test the vibration of the pipeline elbow 24 and the flow noise in the pipe under different radii.

[0101] 4) Testing method for the relationship between the installation parameters of the shock absorber 4 and the acoustic quality:

[0102] a. Device 3 excitation:

[0103] Under different excitations of device 3, the acoustic mass of vibration absorber 4 varies greatly. By changing the output excitation of device 3, the relationship between the excitation of device 3 and the acoustic mass of vibration absorber 4 is studied.

[0104] The control cabinet 12 is adjusted to change the output excitation of the device 3 and the vibration isolation effect of the vibration absorber 4 under different excitations of the device 3 is tested.

[0105] b. Deformation:

[0106] The acoustic effect of vibration damper 4 varies depending on the deformation of the entire piping system 2 and equipment 3 at different installation stages. A vibration damper deformation monitoring device 16 is used to monitor the deformation of vibration damper 4 in real time. The vibration isolation effect of vibration damper 4 is tested before and after the installation of the vibration damping pipe 17 and before and after the installation of equipment 3. The relationship between the deformation of vibration damper 4 and its acoustic quality is studied.

[0107] c. Static stiffness:

[0108] The static stiffness of the vibration absorber 4 and the static stiffness combination of all vibration absorbers 4 under the equipment 3 will affect its acoustic quality. The vibration absorber 4 and the adjustment gasket 7 are removed using the vibration absorber disassembly device, and the static stiffness and static stiffness combination of the vibration absorber 4 are changed. The vibration isolation effect of the vibration absorber 4 under different static stiffness and static stiffness combination is tested, and the relationship between the static stiffness of the vibration absorber 4 and its acoustic quality is studied.

[0109] d. Shock absorber 4 fit:

[0110] The fit of the shock absorber 4 will affect its acoustic quality. By changing the roughness of the adjustment gasket 7 to simulate the fit of different installation surfaces, the vibration isolation effect of the shock absorber 4 under different fits is tested, and the relationship between the fit of the shock absorber 4 and its acoustic quality is studied.

[0111] Use a shock absorber disassembly device to remove the shock absorber 4 and adjustment shim 7. Replace the adjustment shim 7 with parameters such as roughness 3.2, 6.3, and 12.5 in sequence, and then reinstall the shock absorber 4 and adjustment shim 7. Test the vibration isolation effect of the shock absorber 4 under different roughnesses, that is, different installation fits.

[0112] e. The mounting surface of shock absorber 4 is tilted:

[0113] The deflection of the mounting surface of the shock absorber 4 will affect its acoustic quality. By changing the thickness of the adjusting gasket 7 under the shock absorber 4 to simulate different mounting surface deflections, the vibration isolation effect of the shock absorber 4 under different mounting surface deflections is tested, and the relationship between the deflection of the mounting surface of the shock absorber 4 and its acoustic quality is studied.

[0114] Use the shock absorber disassembly device to remove the shock absorber 4 and the adjusting gasket 7. By changing the thickness of the adjusting gasket 7, the working conditions of the two mounting surfaces of the shock absorber 4 being deflected 8mm to the left and right, 4mm to the left and right, no deflection, and 8mm diagonal deflection are simulated in turn to test the vibration isolation effect of the shock absorber 4 under different working conditions.

[0115] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The system for detecting the relationship between piping and shock absorber installation parameters and acoustic quality is characterized by: It includes a water tank (1), a piping system (2), a vibration isolation system, a vibration isolation platform (8) and a monitoring system; The piping system (2) is composed of pipes connecting the water tank (1) and the device (3) to form a loop, wherein the pipe connecting the water tank (1) to the device (3) is the water inlet pipe, and the pipe connecting the device (3) to the water tank (1) is the water outlet pipe; The pipeline system (2) is supported by a plurality of pipe supports (25), and the pipe supports (25) are provided with rubber vibration dampers (251) between the supports and the base. The number of pipe supports (25) is set according to the length of the pipeline system (2), and the pipe supports (25) are fixed on the vibration isolation platform (8) by quick locking pins (13); A vibration isolation system includes a vibration damper mounting plate (6), a vibration damper (4), an intermediate mass block (5), and an adjustment gasket (7). The vibration damper mounting plate (6) is welded on a vibration isolation platform (8) and is provided with holes of different diameters. The vibration damper (4) is divided into two layers, the lower layer vibration damper (4) is quickly fixed on the vibration damper mounting plate (6) by a quick locking pin (13), and the upper layer vibration damper (4) is provided with an adjustment gasket (7). An intermediate mass block (5) is provided between the two layers of vibration dampers (4) to achieve vibration isolation of the equipment (3). The vibration isolation platform (8) is connected to the base through the low-frequency vibration damper (9), ensuring that the pipeline system (2) and the vibration isolation system on the vibration isolation platform (8) are isolated from external vibrations; the upper surface of the vibration isolation platform (8) is evenly provided with openings, and the pipe bracket (25) and the vibration damper (4) can be replaced and installed at any position on the vibration isolation platform through the cooperation of the openings and the quick locking pins (13); The vibration isolation platform (8) is embedded with a slideway (10), and the slideway power system (11) drives the movable area (26) of the vibration isolation platform to move along the slideway (10), thereby realizing the rapid replacement of the vibration reduction pipe (17), the general pipeline (19) and the flange adjustment gasket (22); The monitoring system includes a vibration damping pipe deformation monitoring device (15) and a vibration damper deformation monitoring device (16), wherein the vibration damping pipe deformation monitoring device (15) is clamped on a flange (21) on which the vibration damping pipe (17) is mounted, and monitors in real time whether the vibration damping pipe (17) is deformed, and the vibration damper deformation monitoring device (16) is arranged on one side of the vibration damper (4), and monitors in real time whether the vibration damper (4) is deformed; The piping system (2) is composed of a plurality of pipe sections. The water inlet pipe from the water tank (1) to the equipment (3) is sequentially composed of a general pipe (19), a vibration-damping pipe (17), a general pipe (19), an adjustment gasket pipe section (20), a vibration-damping pipe (17), a transition pipe section (23), a general pipe (19), a pipe elbow (24), and a vibration-damping pipe (17), and is connected to the equipment (3) via a flange (21); a valve (18) is provided in the pipe section near the vibration-damping pipe (17) and before the pipe elbow (24), and the flow rate is throttled by opening and closing the valve (18); the water outlet pipe from the equipment (3) to the water tank (1) is installed in the opposite order to the water inlet pipe, and similarly, the equipment (3) is connected to the water outlet pipe via a flange (21); The pipes are connected via flanges (21), and flange adjustment gaskets (22) are provided on the opposite sides of the two flanges (21) to ensure the sealing of the connection between the pipes; The slideway power system (11) includes a lifting lug (27) welded and fixed to the movable area (26) of the vibration isolation platform, a concave claw (28) is arranged on the outer surface of the lifting lug (27), a transmission rod (29) is welded and fixed on the outer side of the concave claw (28), and the transmission rod (29) is connected to the reciprocating push rod stepper motor (30). The movement of the reciprocating push rod stepper motor (30) is controlled by the controller (31), and then the concave claw (28) is driven to pull the lifting lug (27) welded on the movable area (26) of the vibration isolation platform, so that the movable area (26) of the vibration isolation platform moves along the slideway (10).

2. The system for detecting the relationship between pipeline and shock absorber installation parameters and acoustic quality according to claim 1, characterized in that: The device (3) is connected to the control cabinet (12) via a cable, and the frequency conversion of the device (3) is adjusted by operating the control cabinet (12), thereby outputting excitations of different frequencies to the vibration absorber (4).

3. The system for detecting the relationship between pipeline and shock absorber installation parameters and acoustic quality according to claim 1, characterized in that: The adjusting gasket pipe section (20) matches the vibration-damping pipe (17) and cooperates with the replacement of the vibration-damping pipe (17).

4. The system for detecting the relationship between pipeline and shock absorber installation parameters and acoustic quality according to claim 1, characterized in that: The vibration isolation platform (8) is also provided with a plurality of temporary pipeline support frames (14), which can be conveniently and quickly installed on any opening on the vibration isolation platform (8) through a quick locking pin (13), so as to facilitate temporary support of the pipeline system (2) when replacing the vibration reduction pipe (17) and the pipe support (25).

5. A method for using the system for detecting the relationship between pipeline and shock absorber installation parameters and acoustic quality according to any one of claims 1 to 4, characterized in that: This includes the following methods: 1) Detection method of the relationship between installation parameters of vibration damping pipe (17) and acoustic quality: The factors that affect the vibration isolation effect of the vibration-damping pipe (17) include deformation of the vibration-damping pipe (17), deflection of the mounting surface, or the type of the vibration-damping pipe (17). The monitoring system is used to simulate the parameter changes of these three situations and to detect the relationship between the installation parameters of the vibration-damping pipe (17) and the acoustic quality: a. Deformation of the vibration damping pipe (17): The vibration-damping pipe (17) is an important vibration-damping element for reducing the vibration of the pipeline system (2). Its deformation is uneven and irregular. The real-time data of the vibration-damping pipe deformation monitoring device (15) is monitored. The vibration isolation effect of the vibration-damping pipe (17) is tested under different deformation conditions. The relationship between the deformation amount installation parameters of the vibration-damping pipe (17) and the acoustic quality is tested. b. The mounting surface of the vibration damping pipe (17) is tilted: The deflection of the mounting surface of the vibration damping pipe (17) will cause asymmetry of the pipeline system (2), affecting the vibration isolation effect of the vibration damping pipe (17); by changing the thickness of the flange adjustment gasket (22) of the flange (21) on one side of the vibration damping pipe (17), the deflection of the two mounting surfaces of the vibration damping pipe (17) is simulated, and the deflection of the mounting surface of the vibration damping pipe (17) is tested to measure the vibration isolation effect of the vibration damping pipe (17) under different deflection conditions; c. Vibration damping pipe (17) type: The entire ship includes various types of vibration-damping pipes (17). Different types of vibration-damping pipes (17) have significant differences in acoustic characteristics. The types of vibration-damping pipes (17) are changed to test the vibration isolation effects of different types of vibration-damping pipes (17). 2) Testing method for the relationship between the installation parameters of the pipe support (25) and the acoustic quality: Factors that affect the vibration amplitude of the pipe support (25) include the installation position of the pipe support (25) and the type of the pipe support (25). The monitoring system is used to simulate parameter changes of the pipe support (25) under different conditions, and the relationship between the installation parameters of the pipe support (25) and the acoustic quality is detected: a. Pipe support (25) position: The pipe support (25) is an important component for reducing the vibration transmitted from the pipe system (2) to the hull structure. The position of the pipe support (25) has a certain influence on the acoustic quality of the pipe system (2). The position of the pipe support (25) is adjusted and the vibration transmission test of the pipe support (25) is performed. b. Pipe support (25) type: The entire ship includes various types of pipe supports (25), and the acoustic characteristics of different pipe supports (25) vary greatly. The types of pipe supports (25) are changed to conduct vibration transmission tests of different types of pipe supports (25); 3) Testing method for the relationship between the radius of pipe elbow (24) and acoustic quality: In terms of the direction of the pipeline, within a certain layout space, the radius of the pipeline elbow (24) has the greatest impact on acoustics. Pipe elbows (24) with different radii will produce different vibration effects. By changing the radius of the pipeline elbow (24), pipeline vibration detection can be performed; 4) Vibration absorber (4) Testing method for the relationship between installation parameters and acoustic quality: a. Equipment (3) incentive: Under different device (3) excitations, the acoustic quality of the vibration damper (4) varies greatly. By changing the output excitation of the device (3), the relationship between the device (3) excitation and the acoustic quality of the vibration damper (4) is studied. b. Deformation: The acoustic effect of the vibration damper (4) is different under the deformation of the entire pipeline system (2) and the equipment (3) at different installation stages; the deformation of the vibration damper (4) is monitored in real time using the vibration damper deformation monitoring device (16), and the vibration isolation effect of the vibration damper (4) is detected before and after the installation of the vibration damping pipe (17) and before and after the installation of the equipment (3); c. Static stiffness: The static stiffness of the vibration absorber (4) and the static stiffness combination of all vibration absorbers (4) under the equipment (3) will affect its acoustic quality. The vibration absorber (4) and the adjustment gasket (7) are removed using a vibration absorber disassembly device, and the static stiffness of the vibration absorber (4) and the static stiffness combination are changed to detect the vibration isolation effect of the vibration absorber (4) under different static stiffness and static stiffness combination. d. Shock absorber (4) fit: The fit of the vibration damper (4) will affect its acoustic quality. By changing the roughness of the adjustment gasket (7) to simulate the fit of different mounting surfaces, the vibration isolation effect of the vibration damper (4) under different fits is tested. e. The mounting surface of the shock absorber (4) is skewed: The deflection of the mounting surface of the vibration damper (4) will affect its acoustic quality. By changing the thickness of the adjustment gasket (7) below the vibration damper (4), different mounting surface deflections are simulated, and the vibration isolation effect of the vibration damper (4) under different mounting surface deflections is tested.

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