A sealable elastic displacement and retention cooling pipe for a ship air compressor and its joint structure
By setting an elastic clearance mechanism at the connection between the cooling pipe and the connecting pipe, and using the cooperation of the sliding sleeve and the damping spring, the problem of unstable sealing of the cooling pipe connection under impact tension and temperature changes is solved, thus achieving a stable sealing effect and extending the service life of the components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING XINYUAN MARINE COMPRESSOR CO LTD
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-28
AI Technical Summary
The existing connection structure between the cooling pipe and the connecting pipe is prone to sealing failure when subjected to impact and tension. Traditional connection methods are difficult to balance the stability of the initial seal and the dynamic seal, resulting in the sealing performance of the heat dissipation system being greatly affected by fluctuations in operating conditions and having poor reliability.
An elastic clearance mechanism is adopted, including a sliding sleeve, a damping spring, and a slider. The large elastic sealing ring tightly fills the connection gap during initial docking and maintains the seal through elastic deformation under stress, thus buffering dimensional changes caused by vibration and thermal expansion and contraction.
It achieves the goal of maintaining airtightness under vibration and temperature change conditions, reducing metal-to-metal contact wear, extending the life of connecting components, and improving the environmental adaptability and durability of the structure.
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Figure CN224566921U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cooling pipe for a shipboard air-cooled air compressor, specifically a cooling pipe and its connector structure for a shipboard air-cooled air compressor that can be elastically offset to maintain a seal. Background Technology
[0002] An air-cooled air compressor is an air compressor that uses air as the cooling medium. When it is working, it drives the flow of cold air through a built-in fan to remove the heat generated by the compressed air and the equipment during operation, thereby maintaining the normal operating temperature. It is suitable for scenarios where water is scarce or where a simplified cooling system is required.
[0003] Cooling pipes are the core components of the air compressor's heat dissipation system. They are often made of high thermal conductivity metals such as copper and aluminum and are usually designed with fins to increase the heat dissipation area. The heat generated during compression is transferred to the surface through the cooling pipes and exchanges heat with the flowing cold air, thereby achieving efficient cooling and ensuring the stable operation of the air compressor.
[0004] Cooling pipes and connecting pipes are adjacent connecting components in the heat dissipation path of an air-cooled air compressor. Together, they form a complete heat transfer path. The cooling pipes complete heat collection and initial transfer through their own structure, while the connecting pipes are responsible for connecting the cooling pipes to other components of the system, ensuring that heat can flow in a directional and continuous manner.
[0005] The connection between the cooling pipe and the connecting pipe must be secure and reliably sealed. Common methods include welding, threaded connection, and compression fitting. The ultimate goal is to prevent heat leakage or loss of cool air and ensure the continuity and efficiency of the heat dissipation system.
[0006] Traditional connection structures between existing cooling pipes and connecting pipes are prone to sealing failure under impact and tension: rigid connections (such as welding and ferrules) lack buffering margins, and tension directly leads to uneven stress or separation of the sealing surface, resulting in frequent weld cracking and ferrule loosening; sealing methods that rely on fixed compression (such as ordinary sealing rings) will have their compression decrease as the gap increases under tension, failing to compensate for displacement and resulting in insufficient sealing surface contact, leading to leakage; at the same time, traditional structures struggle to balance the stability of "initial sealing" and "dynamic sealing," either resulting in excessive initial compression that makes components vulnerable to damage, or insufficient compression that cannot withstand external impacts, ultimately causing the heat dissipation system's sealing performance to be greatly affected by fluctuations in operating conditions and resulting in poor reliability. Utility Model Content
[0007] The purpose of this invention is to provide a shipboard air-cooled compressor cooling pipe and its joint structure that can flexibly yield and maintain a seal, so as to solve the problems mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution: A shipboard air-cooled compressor cooling pipe with elastic clearance and sealing capability includes a cooling pipe body, an annular component fixed around the outer wall of the cooling pipe body, and four grooves and cavities formed on the cooling pipe body, the grooves and cavities being interconnected. An elastic clearance mechanism and a sliding expansion mechanism that engage with the elastic clearance mechanism through vertical compression are slidably fitted on the outer wall of the cooling pipe body. The sliding expansion mechanism is slidably mounted on the grooves, and a sealing component is provided at one end of the cooling pipe body.
[0009] The shipboard air-cooled compressor cooling pipe that can be elastically offset to maintain a seal as described above: the elastic offset mechanism includes a sliding sleeve that is slidably sleeved on the cooling pipe body and an oblique groove formed inside the sliding sleeve, wherein the annular part of the outer wall of the cooling pipe body is adjacent to the oblique groove.
[0010] The shipboard air-cooled compressor cooling pipe that can be elastically offset to maintain a seal as described above: the elastic offset mechanism further includes a damping spring sleeved on the outer wall of the cooling pipe body, the two ends of the damping spring being in contact with the inclined groove and the inner wall of the sliding sleeve, respectively.
[0011] The above-mentioned resiliently slidable and sealed shipboard air-cooled compressor cooling pipe: the sliding expansion mechanism includes four sliders respectively slidably mounted on the four slide grooves, one end of each of the four sliders is provided with a first inclined edge, the other end of the slider is also provided with a second inclined edge and a third inclined edge, and the bottom of the slider is provided with a straight edge.
[0012] The above-mentioned shipboard air-cooled compressor cooling pipe with elastic clearance to maintain sealing: the sealing assembly includes an elastic large sealing ring sleeved on the cooling pipe body, the elastic large sealing ring and the sliding sleeve are squeezed together, and small sealing rings are provided on each of the four cavities, and four sliders slide on the four small sealing rings respectively.
[0013] A connector structure includes a connecting pipe body that is mated to the cooling pipe body, the connecting pipe body having a disc sleeved on it, and the disc being squeezed into a large elastic sealing ring.
[0014] The connector structure described above: the top and side of the connecting tube body are respectively provided with an upper inclined edge and a lateral inclined edge, the upper inclined edge is in contact with the third inclined edge at the bottom of the slider, and the lateral inclined edge is in contact with the second inclined edge at the bottom of the slider.
[0015] Compared with the prior art, the beneficial effects of this utility model are: The structure incorporates a large elastic sealing ring at the connection between the cooling pipe and the connecting pipe, serving as a core sealing and buffer component. When the two are joined, the large elastic sealing ring is significantly compressed, tightly filling the connection gap through its own deformation, forming an initial reliable seal. When the cooling pipe and the connecting pipe are subjected to impact tension, the relative displacement causes the sealing ring to be further compressed. Its elastic properties are transformed into continuous sealing pressure during this process, ensuring a tight fit against the sealing surfaces of both pipes, thereby maintaining the sealing performance of the connection through elastic yielding.
[0016] The sealing design in this utility model can buffer the rigid collision of the two pipes under vibration conditions, reduce the wear of the metal contact surface, extend the service life of the connecting parts, and when the temperature changes cause the pipe body to expand and contract, its elastic deformation can adaptively absorb the size change, avoid the sealing failure caused by stress accumulation in traditional rigid connections, and further improve the environmental adaptability and durability of the structure. Attached Figure Description
[0017] Figure 1 A cross-sectional schematic diagram of the cooling pipes and their joints of a shipboard air-cooled compressor designed to be flexibly spaced and sealed.
[0018] Figure 2 A schematic diagram of the overall structure of the cooling pipes and their joints in a shipboard air-cooled compressor that can be flexibly repositioned to maintain a seal.
[0019] Figure 3 A cross-sectional structural diagram of the cooling pipes and their joints of a shipboard air-cooled compressor designed to be flexibly repositioned to maintain a seal.
[0020] Figure 4 A structural schematic diagram of the pre-assembly cross-section of the cooling pipe and its joint structure of a shipboard air-cooled compressor, designed to be flexible and sealed.
[0021] Figure 5 A schematic diagram of the assembly process of the cooling pipe and its joint structure of a shipboard air-cooled air compressor that can be flexibly rearranged to maintain a seal.
[0022] Figure 6 The cooling pipes and their joints of the ship's air-cooled air compressor are designed to be flexible and maintain a sealed structure. Figure 5 Enlarged structural diagram of section A.
[0023] Figure 7 A schematic diagram of the cooling pipe body structure in the cooling pipe and its joint structure of a shipboard air-cooled air compressor that can be flexibly rearranged to maintain a seal.
[0024] Figure 8 A schematic diagram of the disassembled structure of the cooling pipe and its joint in a shipboard air-cooled air compressor that can be flexibly repositioned to maintain a seal.
[0025] Figure 9 A schematic diagram of the disassembled cross-section of the cooling pipe and its joint structure of a shipboard air-cooled air compressor that can be flexibly repositioned to maintain a seal.
[0026] Figure 10 A cross-sectional disassembly diagram of the slider and connecting pipe body in the cooling pipe and its joint structure of a shipboard air-cooled air compressor that can flexibly yield and maintain a seal.
[0027] Figure 11 The cooling pipes and their joints of the ship's air-cooled air compressor are designed to be flexible and maintain a sealed structure. Figure 10 Enlarged structural diagram of section B.
[0028] In the diagram: 1. Cooling pipe body; 2. Annular part; 3. Slide groove; 4. Cavity; 5. Sliding sleeve; 6. Inclined groove; 7. Damping spring; 8. Elastic large sealing ring; 9. Slider; 10. Small sealing ring; 11. First inclined side; 12. Second inclined side; 13. Third inclined side; 14. Straight side; 15. Connecting pipe body; 16. Disc; 17. Upper inclined side; 18. Lateral inclined side. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0030] Please see Figures 1-11 As an embodiment of this utility model, the shipboard air-cooled compressor cooling pipe that can elastically yield and maintain a seal includes a cooling pipe body 1. An annular member 2 and four sliding grooves 3 and cavities 4 are fixed around the outer wall of the cooling pipe body 1. The sliding grooves 3 and cavities 4 are interconnected. An elastic yielding mechanism and a sliding expansion mechanism that cooperate with the elastic yielding mechanism by pressing up and down are slidably sleeved on the outer wall of the cooling pipe body 1. The sliding expansion mechanism is slidably installed on the sliding grooves 3. A sealing component is provided at one end of the cooling pipe body 1.
[0031] In this embodiment, a sealing assembly is fitted onto the cooling pipe body 1. The cooling pipe body 1 and the connecting pipe are connected by a plug-in joint. During assembly, the connecting pipe is pushed in from one end of the cooling pipe body 1. During this process, the sliding expansion mechanism is squeezed and expands outward, which causes the sliding expansion mechanism to drive the elastic relief mechanism to move towards the connecting pipe. At this time, the sealing assembly is squeezed bidirectionally between the cooling pipe body 1 and the connecting pipe, and tightly fills the connection gap through its own deformation to form an initial reliable seal. At the same time, after the connecting pipe is assembled, a short-stroke sliding space is left for it. This allows the cooling pipe and the connecting pipe to generate relative displacement when subjected to impact tension. At this time, the sliding expansion mechanism is squeezed and the force is transmitted to the sealing assembly again through the elastic relief mechanism. The relative displacement causes the sealing ring to be further squeezed. Its elastic characteristics are transformed into continuous sealing pressure in this process, always tightly fitting the sealing surfaces of the two pipe bodies, thereby stably maintaining the sealing of the connection part in the elastic relief.
[0032] As a further embodiment of this utility model, the elastic clearance mechanism includes a sliding sleeve 5 slidably sleeved on the cooling pipe body 1 and an inclined groove 6 formed inside the sliding sleeve 5, wherein the annular part 2 on the outer wall of the cooling pipe body 1 is adjacent to the inclined groove 6.
[0033] In this embodiment, the sliding sleeve 5 is slidably mounted on the outer wall of the cooling pipe body 1. At the same time, an inclined groove 6 is provided on the inner wall of the sliding sleeve 5, and an annular part 2 is provided on the outer wall of the cooling pipe body 1. The annular part 2 is close to the inclined groove 6 on the inner wall of the sliding sleeve 5.
[0034] As a further embodiment of this utility model, the elastic clearance mechanism further includes a damping spring 7 sleeved on the outer wall of the cooling pipe body 1, with the two ends of the damping spring 7 contacting the inclined groove 6 and the inner wall of the sliding sleeve 5, respectively.
[0035] In this embodiment, a damping spring 7 is also fitted on the outer wall of the cooling pipe body 1. One end of the damping spring 7 is fixed on the annular part 2, and the other end abuts against the inner wall of the sliding sleeve 5. The elastic force of the damping spring 7 acts on the sliding sleeve 5.
[0036] As a further embodiment of this utility model, the sliding expansion mechanism includes four sliders 9 that are slidably mounted on the four slide grooves 3 respectively. One end of each of the four sliders 9 is provided with a first inclined side 11, and the other end of each slider 9 is provided with a second inclined side 12 and a third inclined side 13. The bottom of each slider 9 is provided with a straight side 14.
[0037] In this embodiment, sliders 9 are slidably installed on the four grooves 3 on the outer wall of the cooling pipe body 1. One end of the slider 9 is designed with a first inclined edge 11, which fits into the inclined groove 6 of the sliding sleeve 5.
[0038] As a further embodiment of this utility model, the sealing assembly includes a large elastic sealing ring 8 sleeved on the cooling pipe body 1, the large elastic sealing ring 8 and the sliding sleeve 5 are in a compression fit, and small sealing rings 10 are provided on each of the four cavities 4, and four sliders 9 slide on the four small sealing rings 10 respectively.
[0039] In this embodiment, each cavity 4 is equipped with a small sealing ring 10, which is slidably connected to the slider 9. The small sealing ring 10 can ensure the sealing of the cooling pipe body 1 itself.
[0040] As a further embodiment of this utility model, a connector structure includes a connecting pipe body 15 that is mated to the cooling pipe body 1. A disc 16 is sleeved on the connecting pipe body 15, and the disc 16 is squeezed into the elastic large sealing ring 8.
[0041] In this embodiment, a disc 16 is fixedly sleeved on the connector body 15. After the connector is inserted, the disc 16 and the sliding sleeve 5 will compress the elastic large sealing ring 8.
[0042] As a further embodiment of this utility model, the top and side of the connecting pipe body 15 are respectively provided with an upper inclined edge 17 and a side inclined edge 18. The upper inclined edge 17 is in contact with the third inclined edge 13 at the bottom of the slider 9, and the side inclined edge 18 is in contact with the second inclined edge 12 at the bottom of the slider 9.
[0043] In this embodiment, during the process of inserting the connector body 15 into the cooling pipe body 1, the lateral bevel 18 at one end of the connector body 15 first comes into contact with the second bevel 12 of the four sliders 9. As the connector body 15 is pushed in, the four sliders 9 will press outwards respectively. Then, the first bevel 11 of the slider 9 comes into contact with the bevel groove 6 of the sliding sleeve 5, and drives the sliding sleeve 5 to slide to one side. At this time, the damping spring 7 will be compressed. Then, the sliding sleeve 5 and the connector body 15 come closer to each other, compressing the elastic large sealing ring 8 and tightly filling the connection gap through its own deformation to form an initial reliable seal. At this time, the lateral bevel 18 of the connector body 15 will pass over the four sliders 9. At this time, the damping spring 7 pops out and drives the four sliders 9 to return to their original position. Then, the third bevel 13 of the slider 9 comes into contact with the upper bevel 17 of the sliding sleeve 5, completing the assembly.
[0044] At this time, because the elastic large sealing ring 8 is in a compressed state, it will apply a lateral force to both sides. This force will be evenly applied to the disc 16 of the connecting pipe body 15 and the sliding sleeve 5. Then, the sliding sleeve 5 will transfer the lateral force to the four sliders 9 in the diagonal direction. At this time, the lateral force is dispersed into a diagonal force, which drives the sliders 9 to slide inward. Then, the sliders 9 will transfer the force to the upper diagonal side 17 of the connecting pipe body 15 through the third diagonal side 13. At this time, the lateral force of the sliding sleeve 5 is reduced after being transferred in two different directions. However, due to the presence of the damping spring 7, the resistance... The elastic force of the nylon spring 7 increases the lateral force of the sliding sleeve 5, which makes the return force of the subsequent four sliders 9 greater than the force applied to the connecting pipe body 15 by the elastic large sealing ring 8. At this time, the third inclined edge 13 at one end of the four sliders 9 transmits the force to the connecting pipe body 15 through the upper inclined edge 17, so that the connecting pipe body 15 is not in contact with the straight edge 14. At this time, a certain distance gap will be generated between the connecting pipe body 15 and the straight edge 14. This gap can be used as the sliding stroke between the cooling pipe body 1 and the connecting pipe body 15, so that the cooling pipe body 1 and the connecting pipe body 15 can be relatively displaced when subjected to impact tension. When relative displacement occurs between the cooling pipe body 1 and the connecting pipe body 15, the four sliders 9 will be squeezed outward and expanded, thereby driving the sliding sleeve 5 to slide in the direction of the elastic large sealing ring 8, which will cause the sealing ring to be further squeezed. Its elastic characteristics are transformed into continuous sealing pressure in this process, always tightly fitting the sealing surfaces of the cooling pipe body 1 and the connecting pipe body 15, thus maintaining the sealing of the connection part stably in the elastic yielding.
[0045] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.
Claims
1. A cooling tube of a shipboard air compressor cooled by wind, which can be elastically displaced to maintain sealing, comprising a cooling tube body (1), characterized in that, The outer wall of the cooling pipe body (1) is surrounded and fixed with an annular part (2) and four sliding grooves (3) and cavities (4) opened on the cooling pipe body (1). The sliding grooves (3) and cavities (4) are interconnected. The outer wall of the cooling pipe body (1) is slidably fitted with an elastic relief mechanism and a sliding expansion mechanism that cooperates with the elastic relief mechanism in an up-and-down squeezing manner. The sliding expansion mechanism is slidably installed on the sliding groove (3). A sealing component is provided at one end of the cooling pipe body (1).
2. A resiliently yieldable, hold-seal, on-board air-cooled air compressor cooling tube according to claim 1, wherein, The elastic clearance mechanism includes a sliding sleeve (5) that is slidably sleeved on the cooling pipe body (1) and an inclined groove (6) opened inside the sliding sleeve (5). The annular part (2) on the outer wall of the cooling pipe body (1) is adjacent to the inclined groove (6).
3. A resiliently yieldable, hold-seal, on-board air-cooled air compressor cooling tube according to claim 2, wherein, The elastic clearance mechanism also includes a damping spring (7) sleeved on the outer wall of the cooling pipe body (1), with the two ends of the damping spring (7) in contact with the inclined groove (6) and the inner wall of the sliding sleeve (5), respectively.
4. A resiliently yieldable, hold-seal, on-board air-cooled air compressor cooling tube according to claim 3, wherein, The sliding expansion mechanism includes four sliders (9) that are slidably mounted on the four slide grooves (3). One end of each slider (9) is provided with a first inclined edge (11), and the other end of each slider (9) is provided with a second inclined edge (12) and a third inclined edge (13). The bottom of each slider (9) is provided with a straight edge (14).
5. A resiliently yieldable, hold-seal, on-board air-cooled air compressor cooling tube according to claim 4, wherein, The sealing assembly includes an elastic large sealing ring (8) sleeved on the cooling pipe body (1), the elastic large sealing ring (8) and the sliding sleeve (5) are squeezed together, and small sealing rings (10) are provided on each of the four cavities (4), and four sliders (9) slide on the four small sealing rings (10) respectively.
6. A joint structure comprising the cooling pipe for a shipboard air-cooled air compressor according to claim 5, characterized by It also includes a connecting pipe body (15) that is mated to the cooling pipe body (1), and a disc (16) is fitted on the connecting pipe body (15), and the disc (16) is squeezed into the elastic large sealing ring (8).
7. A connector structure according to claim 6, characterized in that, The top and side of the connecting pipe body (15) are respectively provided with an upper inclined edge (17) and a side inclined edge (18). The upper inclined edge (17) is in contact with the third inclined edge (13) at the bottom of the slider (9), and the side inclined edge (18) is in contact with the second inclined edge (12) at the bottom of the slider (9).