Pipeline cabin-penetrating vibration isolator

Abstract

The utility model discloses a pipeline cabin-penetrating vibration isolator which comprises a metal outer sleeve, a rubber piece and a pipeline connecting piece. The pipeline connecting piece comprises a backstop and an inner pipe used for being connected with a pipeline. The middle section of the inner pipe penetrates through the rubber part, the backstops are symmetrically arranged on the inner pipe along the central axis of the rubber part, the outer surface of the rubber part is connected with the inner surface of the metal outer sleeve, and the metal outer sleeve is installed on the bulkhead. According to the vibration isolator structure, vibration isolation is conducted through the rubber part, the rubber part is supported through the backstop, and therefore the axial compression strength of the vibration isolator structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of vibration isolator technology, and in particular to a pipeline through-cabin vibration isolator. Background Technology

[0002] In the marine industry, internal piping systems are intricate and complex, with numerous pipes needing to pass through bulkheads. To ensure the airtightness of the bulkheads, through-hole fittings are typically used to rigidly connect the outer wall of the pipes to the bulkhead. In this case, the through-hole fittings only serve to support and secure the pipes.

[0003] However, when liquids are transported through pipelines, the high-speed flow of the liquids causes radial vibrations in the pipelines. These radial vibrations are transmitted to the bulkheads through the tank linings, causing secondary structural vibrations in the bulkheads. Over time, these vibrations can damage the integrity of the ship's structure, accelerate the fatigue wear of structural components, and shorten the ship's service life.

[0004] Therefore, how to effectively isolate vibration in ship piping systems is a pressing technical problem that needs to be solved. Utility Model Content

[0005] The main purpose of this utility model is to provide a pipeline through-cabin vibration isolator, which aims to solve the above-mentioned technical problems in the background art.

[0006] To achieve the above objectives, this utility model provides a pipeline through-cabin vibration isolator, which includes a metal outer jacket, a rubber component, and a pipeline connector. The pipeline connector includes a stop and an inner tube for connecting the pipeline. The middle section of the inner tube passes through the rubber component, and the stop is symmetrically arranged on the inner tube along the central axis of the rubber component. The outer surface of the rubber component is connected to the inner surface of the metal outer jacket, and the metal outer jacket is installed on the bulkhead.

[0007] Preferably, the distance between the stop and the metal outer casing is greater than the axial vibration distance of the inner tube.

[0008] Preferably, the number of stops is 2N, and N≥2.

[0009] Preferably, the end face of the rubber component is provided with a boss corresponding to the position of the stop.

[0010] Preferably, a first groove is provided between the rubber component and the metal jacket.

[0011] Preferably, a second groove is provided between the rubber component and the inner tube.

[0012] Preferably, flanges are provided at both ends of the inner tube.

[0013] Preferably, a bracket connected to the flange is provided on the outer wall of the inner tube.

[0014] Preferably, the metal jacket includes a mounting ring and a mounting plate connected to the mounting ring; the mounting ring passes through the bulkhead, and the mounting plate is fixed to the bulkhead by bolts.

[0015] Preferably, an O-ring is provided between the mounting plate and the bulkhead.

[0016] The pipeline through-chamber vibration isolator of this utility model has a rubber component in the middle section of the pipeline connector. The rubber component is used for vibration isolation. The rubber component is symmetrically provided with stops on both sides, which are connected to the inner pipe. The stops support the rubber component, thereby improving the axial compressive strength of the vibration isolator structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the pipeline through-cabin vibration isolator in one embodiment of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the pipeline through-cabin vibration isolator in one embodiment of the present invention. Figure 2 ;

[0020] Figure 3 For along Figure 2 Schematic diagram of the cross section of line AA in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the metal jacket in one embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the rubber component in one embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the pipe connector in one embodiment of the present invention.

[0024] The serial numbers in the diagram are explained as follows:

[0025] 1. Metal jacket; 11. Mounting ring; 12. Mounting plate; 2. Rubber parts; 21. Boss; 22. First groove; 23. Second groove; 3. Pipe connector; 31. Inner pipe; 32. Stop; 41. Flange; 42. Bracket; 5. Bolt; 6. Bulkhead. Detailed Implementation

[0026] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0027] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0028] It should be noted that in the embodiments of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and other terms indicating the orientation or positional relationship are based on the coordinate system shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] This utility model provides a pipe-through-cabin vibration isolator, referring to... Figures 1 to 3In one embodiment, the pipe-through-cabin vibration isolator includes a metal jacket 1, a rubber component 2, and a pipe connector 3; the pipe connector 3 includes a stop 32 and an inner pipe 31 for connecting the pipe; the middle section of the inner pipe 31 passes through the rubber component 2, the stop 32 is symmetrically arranged on the inner pipe 31 along the central axis of the rubber component 2, the outer surface of the rubber component 2 is connected to the inner surface of the metal jacket 1, and the metal jacket 1 is installed on the bulkhead 6.

[0032] Specifically, the pipe-through-tank vibration isolator of this embodiment includes a pipe connector 3, a rubber component 2 fitted onto the middle section of the pipe connector 3, and a metal outer sleeve 1 fitted onto the outer surface of the rubber component 2. The pipe connector 3 and the rubber component 2 are coaxially connected, with the axis being MN. The pipe connector 3 and the metal outer sleeve 1 are made of the same metal material, preferably alloy structural steel (40Cr). The pipe connector 3 includes multiple (two or more pairs) stops 32 symmetrically arranged along the central axis MN and an inner pipe 31. The first end of each stop 32 is connected to the wall of the inner pipe 31, and the end of each stop 32 extends above the metal outer sleeve 1. These stops 32 are used to support the rubber component 2 in the event of water ingress into a compartment on one side of the bulkhead 6, thereby ensuring that the structure of the pipe-through-tank vibration isolator is not damaged by water pressure. It should be noted that the dimensions L*W (length*width) of the pipe-through-tank vibration isolator are set according to the installation space requirements of the bulkhead 6.

[0033] The working principle of the pipeline through-tank vibration isolator is as follows: When the liquid medium in the pipeline passes through the inner tube 31 of the pipeline through-tank vibration isolator at high speed, the inner tube 31 will generate radial vibration. The rubber part 2 sleeved in the middle section of the inner tube 31 uses its own elasticity and damping characteristics to absorb and consume vibration energy, thereby playing the role of vibration isolation. When the pipeline through-tank vibration isolator is subjected to water pressure on one side, the stop 32 on the other side provides support for the rubber part 2, thereby improving the axial pressure resistance of the vibration isolator structure.

[0034] In summary, the pipe-through-chamber vibration isolator of this embodiment has a rubber component 2 in the middle section of the pipe connector 3 for vibration isolation, and stops 32 connected to the inner pipe 31 are symmetrically arranged on both sides of the rubber component 2 to support the rubber component 2, thereby improving the axial compressive strength of the vibration isolator structure.

[0035] In a preferred embodiment, reference Figure 1 and Figure 3 The distance between the stop 32 and the metal outer casing 1 is greater than the axial vibration distance of the inner tube 31.

[0036] Understandably, the cross-sectional shape of stop 32 is an inverted L-shape or similar. Figure 3As shown in the airfoil design, the bottom surface of the stop 32 is a certain distance from the end face of the metal jacket 1. This distance is greater than the axial vibration distance of the inner tube 31. This design can effectively prevent secondary resonance between the stop 32 and the metal jacket 1, thereby ensuring the stability of the vibration isolation effect of the pipeline through-cabin vibration isolator.

[0037] In a preferred embodiment, the number of stops 32 is 2N, where N≥2.

[0038] Specifically, in this embodiment, the number of stops 32 in the pipe penetration vibration isolator is set according to the pressure resistance design requirements of the rubber component 2. For example, the number of stops 32 is 8. Figure 6 As shown.

[0039] In a preferred embodiment, reference Figure 3 and Figure 5 The end face of the rubber part 2 is provided with a boss 21 corresponding to the position of the stop 32.

[0040] Specifically, in this embodiment, the rubber component 2 has protrusions 21 on both end faces directly below the stop 32. The protrusions 21 and the stop 32 can be fitted with a small gap or connected without gap. The number of protrusions 21 is the same as the number of stops 32, and the cross-sectional shape of the protrusions 21 can be any one of triangle, rectangle, and trapezoid. Preferably, the cross-section of the protrusions 21 is trapezoidal.

[0041] Understandably, by setting the boss 21, this embodiment can meet the radial stiffness design requirements of the pipeline through-chamber vibration isolator. At the same time, when the pipeline through-chamber vibration isolator is subjected to water pressure on one side, it can ensure that the rubber part 2 has a certain pressure resistance strength, so that the rubber part 2 can withstand greater pressure under extreme working conditions.

[0042] In a preferred embodiment, reference Figure 3 and Figure 5 A first groove 22 is provided between the rubber part 2 and the metal jacket 1.

[0043] Specifically, in this embodiment, the rubber component has a first groove 22 on its outer surface, and correspondingly, the inner surface of the metal jacket 1 (or mounting ring 11) has a first protrusion that matches the first groove 22. The first groove 22 has a rectangular or semi-circular cross-section, and the number of first grooves 22 is set according to requirements. For example, when the cross-section of the first groove 22 is rectangular, the number of first grooves 22 is set to one. It is understood that the pipeline through-cabin vibration isolator of this embodiment, by providing the first groove 22 between the rubber component 2 and the metal jacket 1, can improve the connection stability between the rubber component 2 and the metal jacket 1.

[0044] In a preferred embodiment, reference Figure 3 and Figure 5 A second groove 23 is provided between the rubber component 2 and the inner tube 31.

[0045] Specifically, in this embodiment, the rubber component has a second groove 23 on its inner surface, and correspondingly, the middle section of the inner tube 31 has a first protrusion adapted to the second groove 23. The cross-section of the second groove 23 is rectangular or semi-circular, and the number of second grooves 23 is set according to requirements. For example, when the cross-section of the second groove 23 is rectangular, the number of second grooves 23 is set to one. It is understood that the pipeline through-chamber vibration isolator of this embodiment, by providing the second groove 23 between the rubber component 2 and the middle section of the inner tube 31, can improve the connection stability between the rubber component 2 and the inner tube 31.

[0046] It should be noted that, for ease of processing, the shape, size and number of the second groove 23 are the same as those of the first groove 22.

[0047] In a preferred embodiment, reference Figure 1 and Figure 3 The inner tube 31 is provided with flanges 41 at both ends.

[0048] Understandably, in this embodiment, the inner tube 31 is connected at both ends to the pipeline used for transmitting liquid medium via a flange 41, thereby achieving a reliable connection between the pipeline and the pipeline through-chamber vibration isolator.

[0049] In a preferred embodiment, reference Figure 3 The outer wall of the inner tube 31 is provided with a bracket 42 that is connected to the flange 41.

[0050] Specifically, the bracket 42 can be a triangular bracket, with the long side of the triangular bracket fixedly connected to the outer wall of the inner tube 31 and the short side of the triangular bracket fixedly connected to the flange 41. By setting the bracket 42, the connection strength between the pipeline and the pipeline through-cabin vibration isolator can be improved.

[0051] In a preferred embodiment, reference Figure 1 , Figure 3 and Figure 4 The metal jacket 1 includes a mounting ring 11 and a mounting plate 12 connected to the mounting ring 11; the mounting ring 11 passes through the bulkhead 6, and the mounting plate 12 is fixed to the bulkhead 6 by bolts 5.

[0052] Understandably, the metal jacket 1 in this embodiment mainly consists of a mounting ring 11 and a mounting plate 12. During installation, the outer surface of the mounting ring 11 passes through the bulkhead 6 and is limited by the mounting plate 12. It is then fixed by several bolts 5, achieving a stable connection between the pipeline through-bulk vibration isolator and the bulkhead 6. Preferably, the bolts 5 can be M12, and the number of bolts 5 can be 8.

[0053] In a preferred embodiment, reference Figure 3 An O-ring is provided between the mounting plate 12 and the bulkhead 6.

[0054] Understandably, in this embodiment, the pipe-through-cabin vibration isolator has an O-ring installed between the mounting plate 12 and the cabin wall 6, and the O-ring has a through hole that matches the bolt 5. This design can improve the waterproof performance of the pipe-through-cabin vibration isolator.

[0055] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pipe-through-cabin vibration isolator, characterized in that, The pipeline through-cabin vibration isolator includes a metal jacket (1), a rubber component (2), and a pipe connector (3); the pipe connector (3) includes a stop (32) and an inner tube (31) for connecting the pipeline; the middle section of the inner tube (31) passes through the rubber component (2), the stop (32) is symmetrically arranged on the inner tube (31) along the central axis of the rubber component (2), the outer surface of the rubber component (2) is connected to the inner surface of the metal jacket (1), and the metal jacket (1) is installed on the bulkhead (6).

2. The pipeline through-cabin vibration isolator as described in claim 1, characterized in that, The distance between the stop (32) and the metal jacket (1) is greater than the axial vibration distance of the inner tube (31).

3. The pipeline through-cabin vibration isolator as described in claim 2, characterized in that, The number of stops (32) is 2N, and N≥2.

4. The pipeline through-cabin vibration isolator as described in claim 1, characterized in that, The end face of the rubber part (2) is provided with a boss (21) corresponding to the position of the stop (32).

5. The pipeline through-cabin vibration isolator as described in claim 1, characterized in that, A first groove (22) is provided between the rubber part (2) and the metal jacket (1).

6. The pipeline through-cabin vibration isolator as described in claim 5, characterized in that, A second groove (23) is provided between the rubber component (2) and the inner tube (31).

7. The pipeline through-cabin vibration isolator as described in claim 1, characterized in that, Flanges (41) are provided at both ends of the inner tube (31).

8. The pipeline through-cabin vibration isolator as described in claim 7, characterized in that, The outer wall of the inner tube (31) is provided with a bracket (42) that is connected to the flange (41).

9. The pipeline through-cabin vibration isolator as described in claim 1, characterized in that, The metal jacket (1) includes a mounting ring (11) and a mounting plate (12) connected to the mounting ring (11); the mounting ring (11) passes through the bulkhead (6), and the mounting plate (12) is fixed to the bulkhead (6) by bolts (5).

10. The pipeline through-cabin vibration isolator as described in claim 9, characterized in that, An O-ring is provided between the mounting plate (12) and the bulkhead (6).

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