An anti-shock adaptive limit device for ship steam pipes

Abstract

The present application relates to an anti-shock adaptive limiting device for ship steam pipes, which belongs to the field of anti-shock technology for ship steam pipes, and includes a shock absorbing and damping mechanism, which includes a damper connected to the hull for rotation, and a pipe clamp connected to the damper and surrounding the pipe, the inner diameter of the pipe clamp being larger than the outer diameter of the pipe and forming an annular gap with the pipe; a gap maintaining mechanism, which is arranged on the pipe clamp, and the gap maintaining mechanism is used to prevent the inner wall of the pipe clamp from contacting the outer wall of the pipe. Therefore, the hull can avoid the pipe clamp connected to the damper from contacting the steam pipe during daily operation, thereby preventing the vibration noise generated by the steam pipe from being directly transmitted to the hull through the damper; in addition, when the hull is subjected to a collision impact, the impact force is transmitted to the steam pipe, and the amplitude of the steam pipe exceeds the annular gap, causing the steam pipe to contact the pipe clamp, and the impact force is transmitted to the damper through the pipe clamp, and the damper realizes buffering energy consumption, thereby playing a role in protecting the steam pipe.

Description

Technical Field

[0001] The present application relates to the technical field of anti-shock of ship steam pipelines, and in particular to an anti-shock adaptive limiting device for ship steam pipelines. Background Art

[0002] As a crucial component of a steam turbine-driven ship's propulsion system, steam piping systems can be damaged by impacts such as waves and collisions with other ships in complex marine environments, directly impacting the safety of the ship's propulsion system, equipment, and personnel. Therefore, limit switches are required at key locations on steam piping to mitigate external impacts.

[0003] In related technologies, hydraulic dampers are generally used to limit pipeline displacement during impact conditions. Steam pipelines deform and thermally displace under factors such as hot operation and variable operating conditions, pressure fluctuations, and mechanical vibration. Although traditional hydraulic dampers can extend or shorten as steam pipelines deform during operation, they still use a rigid contact design and come into contact with the pipeline during daily operation. Due to the damper's own rigidity, an acoustic short circuit occurs, transmitting the vibration noise generated by the equipment and steam pipelines directly to the hull, affecting the acoustic performance and stability of the ship.

[0004] Therefore, there is an urgent need for a new device that can avoid rigid contact and prevent acoustic short circuits during daily operation and effectively limit pipeline displacement under impact conditions. Summary of the Invention

[0005] In response to the deficiencies or one of the deficiencies raised in the above-mentioned background technology, an embodiment of the present application provides an anti-shock adaptive limit device for ship steam pipes, which can avoid rigid contact and prevent acoustic short circuits during daily operation, and effectively limit pipeline displacement under impact conditions.

[0006] The embodiment of the present application provides a ship steam pipeline anti-shock adaptive limit device, comprising:

[0007] A shock absorbing and damping mechanism, comprising a damper rotatably connected to the hull, and a pipe clamp connected to the damper and surrounding the pipe, wherein the inner diameter of the pipe clamp is larger than the outer diameter of the pipe and an annular gap is formed between the pipe clamp and the pipe;

[0008] A gap maintaining mechanism is provided on the pipe clamp, and is used to prevent the inner side wall of the pipe clamp from contacting the outer side wall of the pipeline.

[0009] In some embodiments, the damper is hinged to the hull, and the gap maintaining mechanism includes a telescopic rod with adjustable length, and both ends of the telescopic rod are hinged to the hull and the pipe clamp respectively.

[0010] In some embodiments, there are at least two telescopic rods distributed on both sides of the damper, and the telescopic rods on both sides form a triangular structure with the hull.

[0011] In some embodiments, the telescopic rod is an electric telescopic rod, and the gap maintaining mechanism further includes a distance sensor and a controller. The distance sensor is used to detect the gap distance between the pipe clamp and the pipe, so that the controller adjusts the length of the electric telescopic rod according to the gap distance.

[0012] In some embodiments, there are multiple distance sensors, and the multiple distance sensors are disposed on the pipe clamp or the pipe and distributed along the circumference.

[0013] In some embodiments, an elastic rod is fixed to the end of the telescopic rod, and the elastic rod is rotatably connected to the hull or the pipe clamp through a hinge.

[0014] In some embodiments, a disengagement mechanism is fixed to the end of the telescopic rod, and the disengagement mechanism is rotatably connected to the hull or the pipe clamp through a hinge. The disengagement mechanism includes a connecting rod and a rod sleeve that are snap-connected to each other.

[0015] In some embodiments, the gap maintaining mechanism includes a first magnetic ring provided on the pipe clamp, and a second magnetic ring provided on the pipe and located inside the first magnetic ring, wherein the first magnetic ring and the second magnetic ring interact with each other to maintain an annular gap between the pipe clamp and the pipe.

[0016] In some embodiments, the gap maintaining mechanism includes a plurality of air nozzles disposed on the pipe clamp and distributed circumferentially, and the air nozzles apply thrust by air jets to maintain an annular gap between the pipe clamp and the pipe.

[0017] In some embodiments, the gap maintaining mechanism includes a pull rope for pulling the pipe clamp and an adjusting component for adjusting the length of the pull rope. The adjusting component changes the position of the pipe clamp by adjusting the length of the pull rope to maintain an annular gap between the pipe clamp and the pipe.

[0018] The beneficial effects of the technical solution provided by this application include:

[0019] An embodiment of the present application provides an anti-shock adaptive limit device for a ship steam pipeline. Due to the shock-absorbing and damping mechanism, it includes a damper connected to the hull rotation, and a pipe clamp connected to the damper and surrounding the pipeline, the inner diameter of the pipe clamp is larger than the outer diameter of the pipeline and forms an annular gap between the pipe clamp and the pipeline; a gap maintaining mechanism is arranged on the pipe clamp, and the gap maintaining mechanism is used to prevent the inner wall of the pipe clamp from contacting the outer wall of the pipeline.

[0020] Therefore, during daily operation, the hull can avoid contact between the pipe clamp connected to the damper and the steam pipe, thereby preventing the vibration noise generated by the steam pipe from being directly transmitted to the hull through the damper; in addition, when the hull is impacted by a collision, the impact force is transmitted to the steam pipe, and the amplitude of the steam pipe exceeds the annular gap, causing the steam pipe to contact the pipe clamp, and the impact force is transmitted to the damper through the pipe clamp. The damper achieves buffering energy consumption, thereby playing a role in protecting the steam pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 description of the embodiments. 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.

[0022] Figure 1 This is a schematic structural diagram of a position limiting device according to an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the installation of the telescopic rod according to an embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of the installation of the distance sensor according to an embodiment of the present application;

[0025] Figure 4 This is a schematic structural diagram of the disengagement mechanism according to an embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the installation of the magnetic ring according to an embodiment of the present application;

[0027] Figure 6 This is a schematic diagram of the installation of the air nozzle according to an embodiment of the present application.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Hull; 2. Damper; 3. Pipe; 4. Pipe clamp; 5. Telescopic rod; 6. Distance sensor; 7. Controller; 8. Connecting rod; 9. Rod sleeve; 10. First magnetic ring; 11. Second magnetic ring; 12. Jet nozzle. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] In response to the deficiencies or one of the deficiencies raised in the above-mentioned background technology, an embodiment of the present application provides an anti-shock adaptive limit device for ship steam pipes, which can avoid rigid contact and prevent acoustic short circuits during daily operation, and effectively limit pipeline displacement under impact conditions.

[0032] See also Figures 1 to 6 As shown, the embodiment of the present application provides a ship steam pipeline anti-shock adaptive limit device, comprising:

[0033] A shock absorbing and damping mechanism includes a damper 2 rotatably connected to the hull 1, and a pipe clamp 4 connected to the damper 2 and surrounding a pipe 3, wherein the inner diameter of the pipe clamp 4 is larger than the outer diameter of the pipe 3 and an annular gap is formed between the pipe clamp 4 and the pipe 3;

[0034] The gap maintaining mechanism is provided on the pipe clamp 4 and is used to prevent the inner wall of the pipe clamp 4 from contacting the outer wall of the pipe 3 .

[0035] The anti-shock adaptive limiting device of the ship steam pipeline in the embodiment of the present application is provided with a shock-absorbing and damping mechanism and a gap maintaining mechanism. The shock-absorbing and damping mechanism includes a damper 2 rotatably connected to the hull 1, and a pipe clamp 4 fixedly connected to the damper 2 and surrounding the pipeline 3. The inner diameter of the pipe clamp 4 is larger than the outer diameter of the pipeline 3 and forms an annular gap between the pipe clamp 4 and the pipeline 3. The gap maintaining mechanism is used to prevent the inner wall of the pipe clamp 4 from contacting the outer wall of the pipeline 3.

[0036] When the hull 1 is in daily operation, the vibration amplitude of the pipe 3 is small and will not exceed the annular gap. Therefore, under the daily operation conditions of the hull 1, the pipe 3 can be out of contact with the pipe clamp 4 connected to the damper 2, thereby preventing the vibration noise generated by the steam pipeline from being directly transmitted to the hull 1 through the damper 2, thereby avoiding rigid contact during daily operation to prevent acoustic short circuit.

[0037] When the hull 1 is impacted by an external object, the impact force is transmitted to the pipeline 3 through the hull 1, causing the vibration amplitude of the pipeline 3 to exceed the annular gap, resulting in contact between the pipeline 3 and the pipe clamp 4. The impact force on the pipeline 3 is transmitted to the damper 2 through the pipe clamp 4. The damper 2 buffers the energy consumption and protects the pipeline 3, thereby effectively limiting the displacement of the pipeline 3 under impact conditions.

[0038] For example, the damper 2 in this embodiment can be rotatably connected to the hull 1 through a ball joint or an ordinary hinge seat. The damper 2 adopts a hydraulic damper, and the pipe clamp 4 includes a connecting seat fixedly connected to the hydraulic damper, and a U-shaped rod fixed on the connecting seat; the gap maintaining mechanism can adopt an elastic pull rod or an elastic pull rope, and use multiple elastic pull rods or elastic pull ropes to pull and position the pipe clamp 4 at multiple angles, so that the inner wall of the pipe clamp 4 does not contact the outer wall of the pipe 3, thereby maintaining the annular gap.

[0039] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides an anti-shock adaptive limit device for a ship steam pipe, wherein the damper 2 of the anti-shock adaptive limit device for a ship steam pipe is hinged to the hull 1, and the gap maintaining mechanism includes a telescopic rod 5 with adjustable length, and the two ends of the telescopic rod 5 are respectively hinged to the hull 1 and the pipe clamp 4.

[0040] The damper 2 of the embodiment of the present application is hinged to the hull 1 through a hinge seat, and the two ends of the telescopic rod 5 of the gap maintaining mechanism are hinged to the hull 1 and the pipe clamp 4 respectively. The telescopic rod 5 can adopt an electric, pneumatic or hydraulic drive cylinder. The telescopic rod 5, the damper 2 and the hull 1 form a triangle. By adjusting the length of the telescopic rod 5, the position of the pipe clamp 4 connected to the telescopic rod 5 can be actively changed. By utilizing the stability of the triangle, the length of the telescopic rod 5 is locked, thereby locking the position of the pipe clamp 4, so that an annular gap is maintained between the pipe clamp 4 and the pipeline 3.

[0041] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides an anti-shock adaptive limit device for a ship steam pipe, wherein the number of telescopic rods 5 of the anti-shock adaptive limit device for a ship steam pipe is at least two and they are distributed on both sides of the damper 2, and the telescopic rods 5 on both sides form a triangular structure with the hull 1.

[0042] The number of telescopic rods 5 in the embodiment of the present application is two and they are distributed on both sides of the damper 2. The two ends of the telescopic rods 5 are respectively hinged to the hull 1 and the pipe clamp 4, forming a triangle with the hull 1. By adjusting the length of the telescopic rods 5 on both sides, the position of the pipe clamp 4 connected to the telescopic rods 5 can be actively changed. By utilizing the stability of the triangle, the length of the telescopic rods 5 on both sides can be locked, thereby locking the position of the pipe clamp 4, so that an annular gap is maintained between the pipe clamp 4 and the pipe 3. For example, the annular gap formed between the pipe clamp 4 and the pipe 3 in this embodiment is greater than 0 and does not exceed 2 mm.

[0043] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides an anti-shock adaptive limit device for a ship steam pipe, wherein the telescopic rod 5 of the anti-shock adaptive limit device for a ship steam pipe is an electric telescopic rod, and the gap maintaining mechanism also includes a distance sensor 6 and a controller 7. The distance sensor 6 is used to detect the gap distance between the pipe clamp 4 and the pipe 3, so that the controller 7 adjusts the length of the electric telescopic rod according to the gap distance.

[0044] The telescopic rod 5 in the embodiment of the present application is an electric telescopic rod. The electric telescopic rod and the distance sensor 6 are both electrically connected to the controller 7. The distance sensor 6 is embedded on the inner side of the pipe clamp 4 and is used to detect the gap distance between the inner wall of the pipe clamp 4 and the outer wall of the pipe 3. It cooperates with the controller 7 to adjust the length of the electric telescopic rod in real time so that an annular gap is maintained between the pipe clamp 4 and the pipe 3.

[0045] It should be noted that when the hull 1 is in daily operation, the vibration amplitude and vibration speed of the pipe 3 are small, and the controller 7 has sufficient reaction speed to adjust the length of the electric telescopic rod to maintain an annular gap between the pipe clamp 4 and the pipe 3. Therefore, under the daily operation conditions of the hull 1, the pipe 3 can be out of contact with the pipe clamp 4 connected to the damper 2, thereby preventing the vibration noise generated by the steam pipeline from being directly transmitted to the hull 1 through the damper 2, thereby avoiding rigid contact during daily operation to prevent acoustic short circuit.

[0046] When the hull 1 is impacted by an external object, the impact force is transmitted to the pipe 3 through the hull 1, causing the vibration amplitude and vibration speed of the pipe 3 to far exceed the response speed of the controller 7 to adjust the electric telescopic rod. The pipe 3 will contact the pipe clamp 4, and the impact force on the pipe 3 can be transmitted to the damper 2 through the pipe clamp 4. The damper 2 buffers the energy consumption and protects the pipe 3, thereby effectively limiting the displacement of the pipe 3 under impact conditions.

[0047] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides a ship steam pipe anti-shock adaptive limit device, the ship steam pipe anti-shock adaptive limit device has a plurality of distance sensors 6, and the plurality of distance sensors 6 are arranged on the pipe clamp 4 or the pipe 3 and distributed along the circumferential direction.

[0048] The number of distance sensors 6 in the embodiment of the present application is four. The four distance sensors 6 are all embedded in the inner side of the pipe clamp 4 and are distributed in a circular shape with equal distances. The four distance sensors 6 are respectively located on the upper, lower, left and right sides of the pipeline 3, and can measure the gap distances Y1, Y2, X1, and X2 in the four directions of upper, lower, left and right in turn.

[0049] For example, when Y1 < Y2 and X1 > X2, the length of the telescopic rod 5 can be adjusted to control the pipe clamp 4 to first translate and then move longitudinally, or first and then translate, so that the center of the pipe clamp 4 returns to the central axis of the pipe 3. For example, the pipe clamp 4 is first translated to the left by 0.5 (X1-X2), and after updating the values ​​of Y1, Y2, X1, and X2, and ensuring that the gaps in the left and right directions are equal, the pipe clamp 4 is then translated downward by 0.5 (Y2-Y1). Finally, the gaps in the four directions are updated again to ensure that the center of the pipe clamp 4 returns to the central axis of the pipe 3.

[0050] In some other embodiments, the two electric telescopic rods are symmetrically installed and form a triangle with the hull 1, which can be converted into the movement strokes ΔL1 and ΔL2 of the two electric telescopic rods by the following formula: When X1=X2, Y1=Y2, ΔL1 and ΔL2 are both 0, the gap adjustment is completed;

[0051] ;

[0052] Among them, Y1, Y2, X1, and X2 are the gap distances in the four directions of up, down, left, and right respectively, S is the distance between the hinge points of the two electric telescopic rods and the hull 1, L+ΔL1 is the distance between the hinge points at both ends of the left electric telescopic rod, and L+ΔL2 is the distance between the hinge points at both ends of the right electric telescopic rod.

[0053] It should be noted that the above-mentioned gap adjustment action is repeated continuously. After each adjustment, the values ​​of Y1, Y2, X1, and X2 can be updated for verification. Even if there is a misalignment error between the center position of the pipe clamp 4 and the central axis of the pipe 3 after adjustment according to the action strokes ΔL1 and ΔL2, Y1, Y2, X1, and X2 can be obtained again to update ΔL1 and ΔL2, and then adjust again. That is, after multiple updates and adjustments, the center position of the pipe clamp 4 can be made close to the central axis of the pipe 3, and finally the situation of X1=X2 and Y1=Y2 is satisfied.

[0054] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides an anti-shock adaptive limit device for a ship steam pipe, wherein an elastic rod is fixed to the end of the telescopic rod 5 of the ship steam pipe anti-shock adaptive limit device, and the elastic rod is rotatably connected to the hull 1 or the pipe clamp 4 through a hinge.

[0055] In the embodiment of the present application, an elastic rod is fixed to the end of the telescopic rod 5. The elastic rod is rotatably connected to the hull 1 or the pipe clamp 4 via a hinge. The elastic rod can be provided at both ends or either end of the telescopic rod 5. The elastic rod can undergo telescopic deformation when subjected to impact from the hull 1. This can prevent the telescopic rod 5 from locking the position of the pipe clamp 4, thereby only limiting the displacement of the pipe 3 but not buffering energy consumption to effectively protect the pipe 3. For example, the elastic rod can be a rubber rod, a spring rod, or a rod-shaped spring.

[0056] Specifically, when the hull 1 is in daily working conditions, the telescopic rod 5 can transmit tension or supporting force through the elastic rod, thereby not affecting the adjustment of the position of the pipe clamp 4; when the hull 1 is impacted by an external object, the impact force is transmitted to the pipe 3 through the hull 1, so that the vibration amplitude of the pipe 3 exceeds the annular gap, causing the pipe 3 to contact the pipe clamp 4, and the impact force on the pipe 3 is transmitted to the damper 2 through the pipe clamp 4, and the telescopic rod 5 undergoes telescopic deformation. The pipe clamp 4 will not be locked by the telescopic rod 5, so that the damper 2 can expand and contract to buffer energy consumption, thereby limiting the displacement of the pipe 3 under impact conditions and effectively protecting the pipe 3.

[0057] In some alternative embodiments: See Figures 1 to 6As shown, an embodiment of the present application provides an anti-shock adaptive limit device for a ship steam pipe, wherein a disengagement mechanism is fixed to the end of a telescopic rod 5 of the ship steam pipe anti-shock adaptive limit device, and the disengagement mechanism is rotatably connected to the hull 1 or the pipe clamp 4 through a hinge, and the disengagement mechanism includes a connecting rod 8 and a rod sleeve 9 that are snap-connected to each other.

[0058] The end of the telescopic rod 5 in the embodiment of the present application is fixed with a disengaging mechanism, which is rotatably connected to the hull 1 or the pipe clamp 4 through a hinge. The disengaging mechanism can be set at both ends or any one end of the telescopic rod 5. The disengaging mechanism can be separated, disconnected or dislocated and shortened when subjected to the impact of the hull 1, which can prevent the telescopic rod 5 from locking the position of the pipe clamp 4, and can only limit the displacement of the pipeline 3 but cannot buffer energy consumption and effectively protect the pipeline 3.

[0059] Specifically, the disengagement mechanism includes a connecting rod 8 and a rod sleeve 9 that are snap-connected to each other, the end of the telescopic rod 5 is fixedly connected to the rod sleeve 9, and the connecting rod 8 is rotatably connected to the hull 1 or the pipe clamp 4 through a hinge. Since the connecting rod 8 and the rod sleeve 9 are snap-connected to each other, when the hull 1 is in normal working conditions, the tension or support force can be transmitted through the connecting rod 8 and the rod sleeve 9, thereby not affecting the adjustment of the position of the pipe clamp 4;

[0060] When the hull 1 is impacted by an external object, the impact force transmitted to the connecting rod 8 or the rod sleeve 9 will exceed the buckle locking force between the connecting rod 8 and the rod sleeve 9, causing the connecting rod 8 to separate from the rod sleeve 9 or the connecting rod 8 to slide further into the rod sleeve 9, thereby preventing the telescopic rod 5 from locking the position of the pipe clamp 4, allowing the damper 2 to expand and contract to buffer energy consumption, thereby limiting the displacement of the pipeline 3 under impact conditions and effectively protecting the pipeline 3.

[0061] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides an anti-shock adaptive limit device for a ship steam pipe, wherein the gap maintaining mechanism of the anti-shock adaptive limit device for a ship steam pipe includes a first magnetic ring 10 arranged on the pipe clamp 4, and a second magnetic ring 11 arranged on the pipe 3 and located on the inner side of the first magnetic ring 10. The first magnetic ring 10 and the second magnetic ring 11 interact with each other to maintain an annular gap between the pipe clamp 4 and the pipe 3.

[0062] The first magnetic ring 10 of the embodiment of the present application is embedded in the inner wall of the pipe clamp 4, and the second magnetic ring 11 is embedded in the outer wall of the pipe 3. The second magnetic ring 11 is located on the inner side of the first magnetic ring 10. The first magnetic ring 10 and the second magnetic ring 11 can both be formed by splicing and installing arc-shaped magnetic blocks. The mutual repulsive force between the first magnetic ring 10 and the second magnetic ring 11 can be used to maintain an annular gap between the pipe clamp 4 and the pipe 3.

[0063] Specifically, when the hull 1 is in daily operation, the vibration amplitude of the pipeline 3 is small and the impact force it receives is small. The mutual repulsive force between the first magnetic ring 10 and the second magnetic ring 11 can maintain an annular gap between the pipe clamp 4 and the pipeline 3. Therefore, under the daily operation conditions of the hull 1, the pipeline 3 can be out of contact with the pipe clamp 4 connected to the damper 2, thereby preventing the vibration noise generated by the steam pipeline from being directly transmitted to the hull 1 through the damper 2, thereby avoiding rigid contact during daily operation to prevent acoustic short circuit.

[0064] When the hull 1 is impacted by an external object, the impact force is transmitted to the pipeline 3 through the hull 1. The impact force on the pipeline 3 is large, which increases the vibration amplitude and vibration speed of the pipeline 3. The pipeline 3 can overcome the mutual repulsion between the first magnetic ring 10 and the second magnetic ring 11 and contact the pipe clamp 4. The impact force on the pipeline 3 is transmitted to the damper 2 through the pipe clamp 4. The damper 2 buffers the energy consumption and protects the pipeline 3, thereby effectively limiting the displacement of the pipeline 3 under impact conditions.

[0065] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides an anti-shock adaptive limit device for a ship steam pipeline. The gap maintaining mechanism of the anti-shock adaptive limit device for a ship steam pipeline includes a plurality of air nozzles 12 arranged on a pipe clamp 4 and distributed circumferentially. The air nozzles 12 apply thrust by jetting to maintain an annular gap between the pipe clamp 4 and the pipeline 3.

[0066] In the embodiment of the present application, a plurality of air nozzles 12 facing the pipe 3 are embedded on the inner side of the pipe clamp 4. The plurality of air nozzles 12 are distributed in a circular shape with equal distances. The gas ejected from the plurality of air nozzles 12 can generate a force acting on the pipe 3. Since the force acts on each other, a reverse thrust is generated on the pipe clamp 4. By controlling the pressure of the ejected gas and maintaining the reverse thrust at an appropriate size, an annular gap can be maintained between the pipe clamp 4 and the pipe 3.

[0067] Specifically, when the hull 1 is in daily operation, the vibration amplitude of the pipeline 3 is small and the impact force it receives is small. The reverse thrust generated by the ejected gas acts on the pipe clamp 4, which can maintain an annular gap between the pipe clamp 4 and the pipeline 3. Therefore, under the daily operation conditions of the hull 1, the pipeline 3 can be out of contact with the pipe clamp 4 connected to the damper 2, thereby preventing the vibration noise generated by the steam pipeline from being directly transmitted to the hull 1 through the damper 2, thereby avoiding rigid contact during daily operation to prevent acoustic short circuit.

[0068] When the hull 1 is impacted by an external object, the impact force is transmitted to the pipeline 3 through the hull 1. The impact force on the pipeline 3 is large, which increases the vibration amplitude and vibration speed of the pipeline 3. The pipeline 3 can overcome the mutual repulsion between the first magnetic ring 10 and the second magnetic ring 11 and contact the pipe clamp 4. The impact force on the pipeline 3 is transmitted to the damper 2 through the pipe clamp 4. The damper 2 buffers the energy consumption and protects the pipeline 3, thereby effectively limiting the displacement of the pipeline 3 under impact conditions.

[0069] In some alternative embodiments: See Figures 1 to 6 As shown, an embodiment of the present application provides an anti-shock adaptive limiting device for a ship steam pipe. The gap maintaining mechanism of the anti-shock adaptive limiting device for a ship steam pipe includes a pull rope for pulling the pipe clamp 4, and an adjusting component for adjusting the length of the pull rope. The adjusting component changes the position of the pipe clamp 4 by adjusting the length of the pull rope so as to maintain an annular gap between the pipe clamp 4 and the pipe 3.

[0070] The gap maintaining mechanism of the embodiment of the present application includes a pull rope and an adjusting component (not shown in the figure). For example, the adjusting component can be an automatic wire reel fixed to the hull 1. By arranging two pull ropes to pull the pipe clamp 4, the two pull ropes are symmetrically distributed on both sides of the damper 2 and the angle formed with the damper 2 is greater than ninety degrees. The two automatic wire reels are used to reel in the pull ropes on both sides respectively to tighten the pull ropes to maintain the position of the pipe clamp 4, thereby maintaining an annular gap between the pipe clamp 4 and the pipeline 3.

[0071] When the hull 1 is in daily operation, the vibration amplitude of the pipe 3 is small and will not exceed the annular gap. Therefore, under the daily operation conditions of the hull 1, the pipe 3 can be out of contact with the pipe clamp 4 connected to the damper 2, thereby preventing the vibration noise generated by the steam pipeline from being directly transmitted to the hull 1 through the damper 2, thereby avoiding rigid contact during daily operation to prevent acoustic short circuit.

[0072] When the hull 1 is impacted by an external object, the impact force is transmitted to the pipeline 3 through the hull 1, causing the vibration amplitude of the pipeline 3 to exceed the annular gap, resulting in contact between the pipeline 3 and the pipe clamp 4. The impact force on the pipeline 3 is transmitted to the damper 2 through the pipe clamp 4. The damper 2 buffers the energy consumption and protects the pipeline 3, thereby effectively limiting the displacement of the pipeline 3 under impact conditions.

[0073] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0074] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0075] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A ship steam pipeline anti-shock adaptive limit device, characterized in that: include: A shock absorbing and damping mechanism, comprising a damper (2) rotatably connected to a hull (1), and a pipe clamp (4) connected to the damper (2) and surrounding a pipe (3), wherein the inner diameter of the pipe clamp (4) is larger than the outer diameter of the pipe (3) and an annular gap is formed between the pipe clamp (4) and the pipe (3); a gap maintaining mechanism, which is provided on the pipe clamp (4), and is used to prevent the inner side wall of the pipe clamp (4) from contacting the outer side wall of the pipe (3); The damper (2) is hinged to the hull (1), and the gap maintaining mechanism comprises a telescopic rod (5) with adjustable length, and both ends of the telescopic rod (5) are hinged to the hull (1) and the pipe clamp (4) respectively; The telescopic rod (5) is an electric telescopic rod, and the gap maintaining mechanism further comprises a distance sensor (6) and a controller (7). The distance sensor (6) is used to detect the gap distance between the pipe clamp (4) and the pipe (3), so that the controller (7) adjusts the length of the electric telescopic rod according to the gap distance.

2. The ship steam pipeline anti-shock adaptive limit device according to claim 1, characterized in that: The number of the telescopic rods (5) is at least two and they are distributed on both sides of the damper (2), and the telescopic rods (5) on both sides form a triangular structure with the hull (1).

3. The ship steam pipe anti-shock adaptive limiter according to claim 1, characterized in that: There are multiple distance sensors (6), and the multiple distance sensors (6) are arranged on the pipe clamp (4) or the pipe (3) and distributed along the circumference.

4. The ship steam pipeline anti-shock adaptive limiter according to claim 1 or 2, characterized in that: An elastic rod is fixed to the end of the telescopic rod (5), and the elastic rod is rotatably connected to the hull (1) or the pipe clamp (4) via a hinge.

5. The ship steam pipeline anti-shock adaptive limiter according to claim 1 or 2, characterized in that: A disengagement mechanism is fixed to the end of the telescopic rod (5), and the disengagement mechanism is rotatably connected to the hull (1) or the pipe clamp (4) via a hinge. The disengagement mechanism comprises a connecting rod (8) and a rod sleeve (9) that are mutually snap-connected.

6. A ship steam pipe anti-shock adaptive limit device, characterized in that: include: A shock absorbing and damping mechanism, comprising a damper (2) rotatably connected to a hull (1), and a pipe clamp (4) connected to the damper (2) and surrounding a pipe (3), wherein the inner diameter of the pipe clamp (4) is larger than the outer diameter of the pipe (3) and an annular gap is formed between the pipe clamp (4) and the pipe (3); a gap maintaining mechanism, which is provided on the pipe clamp (4), and is used to prevent the inner side wall of the pipe clamp (4) from contacting the outer side wall of the pipe (3); The gap maintaining mechanism comprises a pull rope for pulling the pipe clamp (4), and an adjusting component for adjusting the length of the pull rope, wherein the adjusting component changes the position of the pipe clamp (4) by adjusting the length of the pull rope so as to maintain an annular gap between the pipe clamp (4) and the pipe (3).

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