High-temperature-resistant corrosion-resistant high-sealing-performance bellow expansion joint
By applying an anti-corrosion coating to the inner wall of the corrugated expansion joint and installing heat dissipation components on the outer side, the problems of thermal stress and thermal strain of the corrugated pipe plate under high temperature environment are solved, achieving efficient heat dissipation and corrosion resistance, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU AMERICAN STANDARD ENVIRONMENTAL PROTECTION MASCH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-21
AI Technical Summary
Existing high-temperature, corrosion-resistant, and highly airtight corrugated expansion joints may develop cracks due to thermal stress and strain on the corrugated pipe plates in high-temperature environments, posing a safety hazard.
An anti-corrosion coating is applied to the inner wall of the corrugated expansion joint, and a heat dissipation assembly is installed on the outer side, including a cooling cylinder, an output pipe, an input pipe, a heat dissipation pipe, a heat dissipation plate, and a heat dissipation fan. A closed cooling circuit is formed through a circulating pump and a temperature sensor to achieve active cooling.
It effectively isolates corrosive media, extends service life, and improves heat exchange efficiency through multi-stage heat dissipation, avoiding material performance degradation caused by high temperatures and ensuring stable operation of the system in high-temperature environments.
Smart Images
Figure CN224150429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated expansion joint technology, specifically a corrugated expansion joint with high temperature resistance, corrosion resistance, and high sealing performance. Background Technology
[0002] Metal expansion joints, also known as compensators or expansion joints, are indispensable flexible components in modern industrial pipeline systems. Their core function is to absorb displacement caused by temperature changes, mechanical vibrations, or foundation settlement through their own elastic deformation, thereby protecting pipelines and equipment from stress damage.
[0003] However, existing high-temperature resistant, corrosion-resistant, and highly sealing corrugated expansion joints, while designed for high-temperature and corrosion resistance using high-temperature resistant metals and anti-corrosion coatings, suffer from thermal stress and strain when installed in high-temperature environments. The maximum stress occurs at the troughs of the corrugated pipes, potentially leading to cracks and safety hazards. Utility Model Content
[0004] This invention provides a high-temperature resistant, corrosion-resistant, and highly sealing corrugated expansion joint. It has the advantage of working with a high-temperature resistant metal corrugated expansion tube for high-intensity heat dissipation to improve service life. This solves the problem that existing high-temperature resistant, corrosion-resistant, and highly sealing corrugated expansion joints, while achieving high-temperature and corrosion resistance through the use of high-temperature resistant metals and anti-corrosion coatings, suffer from thermal stress and strain when installed in high-temperature environments. The maximum stress occurs at the troughs of the corrugated tubes, which may lead to cracks and safety hazards.
[0005] To achieve high-intensity heat dissipation and improve service life by using a high-temperature resistant metal corrugated expansion joint, this utility model provides the following technical solution: a high-temperature resistant, corrosion-resistant, and highly sealing corrugated expansion joint, comprising a corrugated expansion joint, wherein the inner wall of the corrugated expansion joint is provided with an anti-corrosion coating, and a heat dissipation component is installed on the outer surface of the corrugated expansion joint, wherein:
[0006] The heat dissipation assembly includes a cooling cylinder, an output pipe, and an input pipe. The cooling cylinder is installed on the outer surface of the corrugated expansion joint. The output pipe is located at the lower part of the output pipe. One end of the output pipe is connected to a heat dissipation pipe for enhancing cooling efficiency. The input pipe is installed at the other end of the heat dissipation pipe.
[0007] A heat sink is mounted on the outer surface of the heat pipe, and a cooling fan is mounted on one side of the heat sink to help dissipate heat from the heat pipe.
[0008] As a preferred embodiment of this utility model, a temperature sensor is installed at one end of the corrugated expansion joint, an extension plate is provided on one side of the middle of the corrugated expansion joint, a controller is installed on one side of the extension plate, a connecting plate is installed on the bottom surface of the heat sink, and a circulation pump is installed on the top surface of the connecting plate.
[0009] As a preferred embodiment of this utility model, a temperature sensor is installed at one end of the corrugated expansion joint, an extension plate is provided on one side of the middle of the corrugated expansion joint, a controller is installed on one side of the extension plate, a connecting plate is installed on the bottom surface of the heat sink, and a circulation pump is installed on the top surface of the connecting plate.
[0010] As a preferred embodiment of this utility model, the inner wall of the output pipe is in communication with the inner wall of the cooling cylinder, a circulation pump is installed in the middle of each output pipe, the bottom surface of each circulation pump is fixedly connected to a connecting plate, and the other end of each output pipe is fixedly connected to a heat dissipation pipe.
[0011] As a preferred embodiment of this utility model, the inner wall of the heat dissipation pipe is interconnected with the inner wall of the output pipe, and the other end of each heat dissipation pipe is fixedly connected to one end of an input pipe. The input pipe is located at the top of the cooling cylinder and is fixedly connected, and the inner wall of the input pipe is interconnected with the inner wall of the cooling cylinder.
[0012] As a preferred embodiment of this utility model, the outer surface of each heat dissipation pipe is fixedly connected to the inner wall of a heat dissipation plate, and two cooling fans are fixedly installed at equal intervals on one side of each heat dissipation plate.
[0013] As a preferred embodiment of this utility model, the top surface of one side of the connecting plate is fixedly connected to the bottom surface of the heat sink, one side of each of the two heat sinks is fixedly connected to an extension plate, the controller is electrically connected to the cooling fan, and the circulating pump is electrically connected to the controller.
[0014] Compared with the prior art, this utility model provides a corrugated expansion joint with high temperature resistance, corrosion resistance and high sealing performance, which has the following beneficial effects:
[0015] This high-temperature, corrosion-resistant, and highly airtight corrugated expansion joint effectively isolates corrosive media through its inner anti-corrosion coating, extending its service life. The heat dissipation component actively cools the bellows, preventing material performance degradation caused by high temperatures.
[0016] By expanding the heat dissipation area through a dual-cooling-cylinder design, and combining multi-stage cooling with heat pipes, heat sinks, and fans, heat exchange efficiency is significantly improved. A circulating pump accelerates coolant flow, preventing localized overheating and ensuring stable system operation in high-temperature environments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the corrugated expansion joint of this utility model;
[0019] Figure 3 This is a schematic diagram of the external structure of the heat dissipation component of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the heat dissipation pipe connecting parts of this utility model;
[0021] Figure 5 This utility model provides Figure 1 Enlarged schematic diagram of part A in the middle.
[0022] In the diagram: 1. Corrugated expansion joint; 2. Anti-corrosion coating; 3. Temperature sensor; 4. Controller; 5. Heat dissipation assembly; 50. Cooling cylinder; 51. Input pipe; 52. Output pipe; 53. Circulation pump; 54. Connecting plate; 55. Heat sink; 56. Cooling fan; 57. Heat sink pipe; 58. Extension plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1
[0024] Please see Figures 1-2 This utility model discloses a high-temperature resistant, corrosion-resistant, and highly sealing corrugated expansion joint, comprising a corrugated expansion joint 1, an anti-corrosion coating 2 on the inner wall of the corrugated expansion joint 1, and a heat dissipation component 5 installed on the outer surface of the corrugated expansion joint 1, wherein:
[0025] The heat dissipation assembly 5 includes a cooling cylinder 50, an output pipe 52, and an input pipe 51. The cooling cylinder 50 is installed on the outer surface of the corrugated expansion joint 1. The output pipe 52 is located at the lower part of the output pipe 52. One end of the output pipe 52 is connected to a heat dissipation pipe 57 for enhancing cooling efficiency. The input pipe 51 is installed at the other end of the heat dissipation pipe 57.
[0026] A heat sink 55 is mounted on the outer surface of the heat sink 57, and a cooling fan 56 is mounted on one side of the heat sink 55 to cool the heat sink 57.
[0027] Furthermore, a temperature sensor 3 is installed at one end of the corrugated expansion joint 1, an extension plate 58 is provided on one side of the middle of the corrugated expansion joint 1, a controller 4 is installed on one side of the extension plate 58, a connecting plate 54 is installed on the bottom surface of the heat sink 55, and a circulation pump 53 is installed on the top surface of the connecting plate 54.
[0028] Furthermore, the temperature sensor 3 is electrically connected to the controller 4. There are two cooling cylinders 50, which are fixedly installed at equal intervals on the outer surface of the corrugated expansion joint 1. Each cooling cylinder 50 has an output pipe 52 installed at its lower part, and the output pipe 52 is fixedly connected to the cooling cylinder 50.
[0029] Install the corrugated expansion joint 1 in the pipeline system where high-temperature, corrosive media flow, ensuring that the anti-corrosion coating 2 completely covers the inner wall. Connect the input pipe 51 and output pipe 52 of the heat dissipation assembly 5 to the cooling cylinder 50 to form a closed cooling loop. Fix the controller 4 via the extension plate 58 and connect the power and signal lines of the temperature sensor 3, the circulating pump 53, and the cooling fan 56. Example 2
[0030] Based on the above embodiment 1, please refer to Figures 3-5 The inner wall of the output pipe 52 is connected to the inner wall of the cooling cylinder 50. A circulation pump 53 is installed in the middle of each output pipe 52. The bottom surface of each circulation pump 53 is fixedly connected to a connecting plate 54. The other end of each output pipe 52 is fixedly connected to a heat dissipation pipe 57.
[0031] Furthermore, the inner wall of the heat dissipation pipe 57 is connected to the inner wall of the output pipe 52, and the other end of each heat dissipation pipe 57 is fixedly connected to one end of an input pipe 51. The input pipe 51 is located on the upper part of the cooling cylinder 50 and is fixedly connected, and the inner wall of the input pipe 51 is connected to the inner wall of the cooling cylinder 50.
[0032] Furthermore, the outer surface of each heat pipe 57 is fixedly connected to the inner wall of a heat sink 55, and two cooling fans 56 are fixedly installed at equal intervals on one side of each heat sink 55.
[0033] Furthermore, the top surface of one side of the connecting plate 54 is fixedly connected to the bottom surface of the heat sink 55, one side of the two heat sinks 55 is fixedly connected to an extension plate 58, the controller 4 is electrically connected to the cooling fan 56, and the circulating pump 53 is electrically connected to the controller 4.
[0034] After the system is powered on, temperature sensor 3 monitors the surface temperature of corrugated expansion joint 1 in real time and transmits the data to controller 4. When the temperature exceeds a preset threshold, such as 80°C, controller 4 automatically starts circulation pump 53 and cooling fan 56. Circulation pump 53 drives coolant from cooling cylinder 50 into heat pipe 57 via output pipe 52. As the coolant flows within heat pipe 57, the heat dissipation area expands through heat sink 55, and cooling fan 56 accelerates air convection, rapidly dissipating heat to the external environment. The cooled coolant then flows back to cooling cylinder 50 via input pipe 51, forming a continuous circulation.
[0035] The working principle and usage process of this utility model are as follows: The corrugated expansion joint 1 is installed in a pipeline system where high-temperature, corrosive media flow, ensuring that the anti-corrosion coating 2 completely covers the inner wall. The input pipe 51 and output pipe 52 of the heat dissipation assembly 5 are connected to the cooling cylinder 50 to form a closed cooling circuit. The controller 4 is fixed via the extension plate 58, and the power and signal lines of the temperature sensor 3, the circulating pump 53, and the cooling fan 56 are connected.
[0036] Start-up and Temperature Monitoring: After the system is powered on, the temperature sensor 3 monitors the surface temperature of the corrugated expansion joint 1 in real time and transmits the data to the controller 4. When the temperature exceeds a preset threshold, such as 80°C, the controller 4 automatically starts the circulation pump 53 and the cooling fan 56.
[0037] Coolant circulation and heat dissipation: The circulation pump 53 drives the coolant from the cooling cylinder 50 through the output pipe 52 into the heat dissipation pipe 57. As the coolant flows within the heat dissipation pipe 57, the heat dissipation area is expanded by the heat dissipation plate 55, and the cooling fan 56 accelerates air convection, quickly dissipating heat to the external environment. The cooled coolant returns to the cooling cylinder 50 through the input pipe 51, forming a continuous circulation.
[0038] Intelligent temperature control and shutdown: When temperature sensor 3 detects that the temperature has dropped to a safe range, such as 60℃, controller 4 shuts down circulation pump 53 and cooling fan 56, and the system enters standby mode. Regularly check the coolant level and the cleanliness of the heat dissipation components 5 to ensure efficient heat dissipation.
Claims
1. A high-temperature-resistant, corrosion-resistant, and high-sealing corrugated expansion joint, comprising a corrugated expansion joint (1), an inner wall of the corrugated expansion joint (1) is provided with a corrosion-resistant coating (2), characterized in that: A heat dissipation assembly (5) is installed on the outer surface of the corrugated expansion joint (1), wherein: The heat dissipation assembly (5) includes a cooling cylinder (50), an output pipe (52), and an input pipe (51). The cooling cylinder (50) is installed on the outer surface of the corrugated expansion joint (1). The output pipe (52) is located at the lower part of the output pipe (52). One end of the output pipe (52) is connected to a heat dissipation pipe (57) for enhancing cooling efficiency. The input pipe (51) is installed at the other end of the heat dissipation pipe (57). A heat sink plate (55) is installed on the outer surface of the heat sink (57), and a cooling fan (56) is installed on one side of the heat sink plate (55) to cool the heat sink (57) in conjunction with the heat sink plate (55).
2. The high-temperature resistant, corrosion-resistant, and highly sealing corrugated expansion joint according to claim 1, characterized in that: A temperature sensor (3) is installed at one end of the corrugated expansion joint (1). An extension plate (58) is provided on one side of the middle part of the corrugated expansion joint (1). A controller (4) is installed on one side of the extension plate (58). A connecting plate (54) is installed on the bottom surface of the heat sink (55). A circulation pump (53) is installed on the top surface of the connecting plate (54).
3. The corrugated expansion joint of claim 2, wherein: The temperature sensor (3) is electrically connected to the controller (4). There are two cooling cylinders (50). The two cooling cylinders (50) are fixedly installed at equal intervals on the outer surface of the corrugated expansion joint (1). Each cooling cylinder (50) has an output pipe (52) installed at its lower part. The output pipe (52) and the cooling cylinder (50) are fixedly connected to each other.
4. The corrugated expansion joint of claim 2, wherein: The inner wall of the output pipe (52) is connected to the inner wall of the cooling cylinder (50). A circulation pump (53) is installed in the middle of each output pipe (52). The bottom surface of each circulation pump (53) is fixedly connected to a connecting plate (54). The other end of each output pipe (52) is fixedly connected to a heat dissipation pipe (57).
5. The corrugated expansion joint of claim 1, wherein: The inner wall of the heat dissipation pipe (57) is connected to the inner wall of the output pipe (52). The other end of each heat dissipation pipe (57) is fixedly connected to one end of an input pipe (51). The input pipe (51) is located on the upper part of the cooling cylinder (50) and is fixedly connected. The inner wall of the input pipe (51) is connected to the inner wall of the cooling cylinder (50).
6. The corrugated expansion joint of claim 5, wherein: The outer surface of each heat pipe (57) is fixedly connected to the inner wall of a heat sink (55), and two cooling fans (56) are fixedly installed at equal intervals on one side of each heat sink (55).
7. The corrugated expansion joint of claim 2, wherein: The top surface of one side of the connecting plate (54) is fixedly connected to the bottom surface of the heat sink (55), one side of the two heat sinks (55) is fixedly connected to an extension plate (58), the controller (4) is electrically connected to the cooling fan (56), and the circulating pump (53) is electrically connected to the controller (4).