Pipe hot melt weld joint cooling device

Abstract

The application provides a pipeline hot-melt welding seam cooling device and relates to the technical field of water supply pipeline welding. The pipeline hot-melt welding seam cooling device provides a gas source by an air inlet assembly and pre-cools, the cooled air flow enters a closed chamber formed by the inner wall of the cooling assembly and the outer wall of the pipeline through an air inlet pipe, the pipeline welding seam is cooled, the heat-absorbed air flow is finally discharged through an air outlet pipe, a temperature sensor is further arranged on the cooling assembly and is arranged in correspondence with the position of the pipeline welding seam and is used for monitoring the welding seam temperature. A display assembly is installed on the cooling assembly and is electrically connected with the temperature sensor, receives and displays the monitored temperature value, and realizes digital and visual monitoring of the temperature. Moreover, the device provides a standardized cooling environment for the pipeline welding seam, guarantees the welding quality and improves the construction efficiency.

Description

Technical Field

[0001] This application generally relates to the field of water supply pipeline welding technology, and specifically to a cooling device for hot melt welds of pipelines. Background Technology

[0002] With the acceleration of urbanization, water supply projects have placed higher demands on pipeline systems, further promoting the application of thermofusion welding. Traditional mechanical connections are difficult to guarantee sealing in large-diameter pipes, while thermofusion welding can achieve uniform stress through "end-face thermofusion butt welding," adapting to the connection needs of large-diameter pipes. The existing thermofusion welding process for water supply pipelines generally consists of five stages: preheating stage, heat absorption stage, heating plate removal stage, butt welding stage, and cooling stage. In the current process, the pressure holding and cooling time of the pipe weld joint during the cooling stage usually requires more than 20 to 30 minutes, and it is also easily affected by the ambient temperature. In high-temperature and high-humidity environments, the weld joint cooling time may even double before the welding equipment can be moved to the next welding point, seriously affecting construction efficiency. Furthermore, the existing process cannot provide a standardized cooling environment and cannot generate digital construction records. At the same time, the weld joint cooling effect currently relies mainly on experience to judge. If the pressure holding equipment is removed before the welded part is completely cooled, it is easy to cause incomplete welds, leading to leakage later and failing to guarantee weld quality.

[0003] Therefore, this application provides a cooling device for pipeline hot melt welds that enables digital visual monitoring, reduces cooling time, and improves construction efficiency. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a cooling device for hot melt welds in pipelines.

[0005] This application provides a cooling device for hot-melt welds in pipelines, comprising: An air intake assembly, which provides an air source and cools the airflow; A cooling assembly has openings at both ends along the length of the pipe to be welded. When the pipe passes through the openings, a closed chamber is formed between the inner wall of the cooling assembly and the outer wall of the pipe. The chamber is used to contain the cooling airflow. The cooling assembly is also equipped with an inlet pipe, an outlet pipe, and a first temperature sensor. The inlet pipe and the outlet pipe are connected to the chamber. The inlet pipe is connected to the inlet assembly. The first temperature sensor is set corresponding to the weld position of the pipe and is used to monitor the weld temperature. The display component is mounted on the cooling component, and the first temperature sensor is electrically connected to the display component to transmit the monitored temperature value to the display component.

[0006] According to the technical solution provided in the embodiments of this application, the air intake assembly includes an air supply device and an airflow temperature control device, the air supply device and the airflow temperature control device are connected, and the airflow temperature control device is connected to the air intake pipe.

[0007] According to the technical solution provided in the embodiments of this application, the air intake assembly further includes an airflow speed regulating device, which is connected to the air supply device and is used to regulate the airflow speed entering the airflow temperature control device.

[0008] According to the technical solution provided in the embodiments of this application, the cooling assembly includes a first half-shell and a second half-shell; the first half-shell and the second half-shell are both semi-annular structures, and end plates are symmetrically provided at both ends along the radial direction. The end plates are fixedly connected to the first half-shell and the second half-shell, and the inner diameter of the first half-shell and the second half-shell matches the outer diameter of the pipe to be welded.

[0009] According to the technical solution provided in the embodiments of this application, both the first half-shell and the second half-shell include a three-layer structure consisting of an outer shell, a thermal insulation interlayer, and an inner shell.

[0010] According to the technical solution provided in the embodiments of this application, the air inlet pipe and the air outlet pipe are respectively provided with a second temperature sensor and a third temperature sensor, and the second temperature sensor and the third temperature sensor are electrically connected to the display component.

[0011] According to the technical solution provided in the embodiments of this application, the air intake direction of the air intake pipe is tangent to the inner shell surface of the cooling component, so that the airflow entering the cavity forms a high-speed spiral airflow to cool the weld of the pipe.

[0012] According to the technical solution provided in the embodiments of this application, the display component includes a receiver and a display, the receiver and the display are electrically connected, the receiver is used to receive temperature values ​​monitored by the first temperature sensor, the second temperature sensor and the third temperature sensor, and the display is used to display the temperature values.

[0013] According to the technical solution provided in the embodiments of this application, the receiver is further provided with a processor and multiple indicator lights. The processor compares the temperature values ​​received by the receiver. When the temperature value monitored by the first temperature sensor is greater than a preset cooling temperature value, the indicator light is in a first state; when the temperature value monitored by the first temperature sensor is less than or equal to the preset cooling temperature value, the indicator light is in a second state; when any of the following conditions are met, the indicator light is in a third state: the temperature value monitored by the second temperature sensor exceeds the fluctuation range of a preset intake air temperature reference value; the temperature value monitored by the second temperature sensor is greater than or equal to the temperature value monitored by the third temperature sensor, the temperature value monitored by the first temperature sensor is less than or equal to the temperature value monitored by the third temperature sensor, the temperature value monitored by the second temperature sensor is greater than or equal to the temperature value monitored by the first temperature sensor; the difference between the temperature value monitored by the third temperature sensor and the temperature value monitored by the second temperature sensor is less than a preset threshold.

[0014] In summary, this application specifically discloses a pipe hot-melt weld cooling device, comprising: an air inlet assembly, a cooling assembly, and a display assembly; the air inlet assembly provides an air source and cools the airflow; the cooling assembly has openings at both ends along the length of the pipe to be welded, and when the pipe passes through the openings, a closed chamber is formed between the inner wall of the cooling assembly and the outer wall of the pipe, the chamber being used to contain the cooling airflow; the cooling assembly is also provided with an air inlet pipe, an air outlet pipe, and a first temperature sensor, the air inlet pipe and the air outlet pipe being connected to the chamber, the air inlet pipe being connected to the air inlet assembly, and the first temperature sensor being set corresponding to the position of the pipe weld for monitoring the weld temperature; the display assembly is mounted on the cooling assembly, and the first temperature sensor is electrically connected to the display assembly for transmitting the monitored temperature value to the display assembly. The system includes an air intake assembly that provides an air source and pre-cools the airflow before it enters the cooling assembly. The cooling assembly has openings at both ends along the length of the pipe to be welded. When the pipe passes through these openings, its inner wall and outer wall form a closed chamber. The air intake assembly introduces the cooled airflow into the chamber through an intake pipe. The airflow flows within the chamber, absorbs heat generated by the weld, and is then discharged through an outlet pipe. Simultaneously, a first temperature sensor on the cooling assembly is positioned corresponding to the weld location on the pipe, monitoring the weld temperature changes in real time. A display assembly is installed on the cooling assembly and, after being electrically connected to the first temperature sensor, receives and displays the temperature monitoring data. Throughout the process, the air intake assembly continuously provides cooling airflow, and the closed chamber formed by the inner wall of the cooling assembly and the outer wall of the pipe provides a cooling environment for the pipe weld. The display assembly then visualizes the temperature value monitored by the first temperature sensor. This device provides a standardized cooling environment for pipe weld cooling and achieves digital visual monitoring, ensuring pipe welding quality while improving construction efficiency. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of a pipe hot melt weld cooling device.

[0016] Figure 2 This is a schematic diagram of the structure of a pipe hot melt weld cooling device after the first half-shell and the second half-shell are spliced ​​together.

[0017] The following components are labeled in the diagram: 1. Intake assembly; 2. Cooling assembly; 3. Intake pipe; 4. Exit pipe; 5. First temperature sensor; 6. Display assembly; 7. Air supply device; 8. Airflow temperature control device; 9. Airflow speed adjustment device; 10. First half-shell; 11. Second half-shell; 12. End plate; 13. Second temperature sensor; 14. Third temperature sensor; 15. Receiver; 16. Display; 17. Processor; 18. Indicator light; 19. Intake duct. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] This application provides a cooling device for hot-melt welds in pipelines, comprising: Air intake assembly 1, which provides an air source and cools the airflow; Cooling component 2 has openings at both ends along the length of the pipe to be welded. When the pipe passes through the openings, a closed chamber is formed between the inner wall of cooling component 2 and the outer wall of the pipe. The chamber is used to contain the cooling airflow. Cooling component 2 is also provided with an air inlet pipe 3, an air outlet pipe 4 and a first temperature sensor 5. The air inlet pipe 3 and the air outlet pipe 4 are connected to the chamber. The air inlet pipe 3 is connected to the air inlet component 1. The first temperature sensor 5 is set corresponding to the position of the pipe weld and is used to monitor the weld temperature. Display component 6 is mounted on cooling component 2. First temperature sensor 5 is electrically connected to display component 6 and is used to transmit the monitored temperature value to display component 6.

[0021] It should be noted that during the cooling process of the pipe weld, the cooling assembly 2 is first fitted onto the pipe weld, forming a closed chamber between the inner wall of the cooling assembly 2 and the outer wall of the pipe. Then, the air intake assembly 1 is activated, supplying air to the cooling assembly 2 while simultaneously cooling the airflow. The low-temperature airflow then enters the closed chamber through the air intake pipe 3 on the cooling assembly 2, further cooling the weld. The heat-absorbing airflow exits the chamber through the air outlet pipe 4 on the cooling assembly 2. Simultaneously, the first temperature sensor 5 on the cooling assembly 2 continuously monitors the weld temperature; for example, the first temperature sensor 5 can be an infrared temperature sensor. It transmits the real-time temperature data to the display assembly 6. The display assembly 6 receives and displays the temperature data, allowing the operator to judge the cooling progress by observing temperature changes until the weld temperature drops to the cooling standard value, thus completing the entire cooling process. For example, ... Figure 1 As shown, the intake assembly 1 provides a continuous and stable airflow and cools the airflow before it enters the cooling assembly 2, preventing the cooling process from stalling due to airflow interruption and ensuring the continuity of the cooling process. The inner wall of the cooling assembly 2 and the outer wall of the pipe form a closed chamber, allowing the cooled airflow to flow inside the chamber to cool the pipe welds. The intake pipe 3 serves as the airflow input channel, introducing the low-temperature airflow into the chamber, while the exhaust pipe 4 serves as the airflow discharge channel, promptly discharging the high-temperature airflow after heat absorption to prevent heat accumulation in the chamber and maintain the cooling environment. The intake pipe 3 and the exhaust pipe 4 are used for cooling... The components 2 are arranged diagonally on opposite sides, with the air inlet and outlet directions reversed. This allows the airflow, after entering the chamber from the inlet pipe 3, to more fully cover the pipe weld and surrounding heat dissipation area. This increases the contact area with the pipe surface and prolongs the contact time between the airflow and the pipe's outer wall, preventing insufficient local cooling of the pipe weld caused by airflow flowing directly from the inlet pipe 3 to the outlet pipe 4, or uneven cooling due to excessive local airflow concentration caused by airflow blowing directly onto the pipe weld. The first temperature sensor 5, as the weld temperature monitoring element, monitors the weld temperature changes in real time, ensuring the entire cooling process is controllable. The display component 6 can display the temperature data monitored by the first temperature sensor 5, realizing temperature value visualization. This device provides a standardized cooling environment for pipe weld cooling and realizes digital visual monitoring, allowing operators to intuitively grasp the cooling progress, ensuring pipe welding quality while improving construction efficiency.

[0022] Furthermore, the air intake assembly 1 includes an air supply device 7 and an airflow temperature control device 8, which are connected together, and the airflow temperature control device 8 is connected to the air intake pipe 3.

[0023] It should be noted that the air intake assembly 1 includes an air supply device 7 and an airflow temperature control device 8. The air supply device 7 continuously supplies airflow into the cooling assembly 2. For example, the air supply device 7 can be an air compressor or an air tank. The airflow temperature control device 8 cools the airflow supplied by the air supply device 7. For example, the airflow temperature control device 8 can be a vortex tube. The air supply device 7 and the airflow temperature control device 8 can be connected through the air intake pipe 19. The airflow cooled by the airflow temperature control device 8 is delivered to the cavity of the cooling assembly 2 through the air intake pipe 3, thereby cooling the pipe weld. The air supply device 7 ensures a continuous supply of airflow during the cooling process, while the airflow temperature control device 8 continuously cools the airflow entering the cooling assembly 2.

[0024] Furthermore, the air intake assembly 1 also includes an airflow speed regulating device 9, which is connected to the air supply device 7 and is used to regulate the airflow speed entering the airflow temperature control device 8.

[0025] It should be noted that when the airflow velocity provided by the gas supply device 7 is too high, it will be difficult for the airflow temperature control device 8 to stabilize the airflow at the target temperature. Furthermore, if the airflow velocity input into the cooling component 2 is too high, the pipe weld will cool too quickly, potentially causing cracks. Conversely, if the airflow velocity provided by the gas supply device 7 is too low, the airflow velocity input into the cooling component 2 by the airflow temperature control device 8 will decrease, resulting in slow weld cooling, reduced construction efficiency, and even airflow stagnation within the cooling component chamber. By connecting the airflow velocity adjustment device 9 to the gas supply device 7, the velocity of the airflow entering the airflow temperature control device 8 can be adjusted, thereby changing the airflow velocity input into the cooling component 2 and stabilizing it within a preset range. Simultaneously, the airflow velocity can be adjusted at any time during the pipe weld cooling process to address different working conditions.

[0026] Furthermore, the cooling assembly 2 includes a first half-shell 10 and a second half-shell 11; both the first half-shell 10 and the second half-shell 11 are semi-annular structures, and end plates 12 are symmetrically provided at both ends along the radial direction. The end plates 12 are fixedly connected to the first half-shell 10 and the second half-shell 11, and the inner diameter of the first half-shell 10 and the second half-shell 11 matches the outer diameter of the pipe to be welded.

[0027] It should be noted that, as Figure 2As shown, the first half-shell 10 and the second half-shell 11 can be spliced ​​together to form a complete annular structure. The connection and fixation of the first half-shell 10 and the second half-shell 11 are achieved by the end plates 12 at both ends and bolts and nuts. Each set of end plates has multiple sets of holes, and each set of holes is set accordingly. After the bolt passes through the corresponding hole, it forms a threaded connection with the nut, thereby connecting the first half-shell 10 and the second half-shell 11 into a complete annular shell. The inner diameter of the first half-shell 10 and the second half-shell 11 matches the outer diameter of the pipe to be welded, so that the first half-shell 10 and the second half-shell 11 can be tightly fastened to the outer wall of the pipe to be welded after splicing, so that the inner wall of the first half-shell 10 and the second half-shell 11 together with the outer wall of the pipe to be welded forms an annular cavity. The cooling component is designed as an annular split structure, which can be directly sleeved on the outside of the weld area of ​​the pipe to be welded during pipe weld cooling operations, and can be installed without disassembling the entire pipe. Furthermore, by adjusting the inner diameter specifications of the first half-shell 10 and the second half-shell 11, it can be adapted to welded pipes of different diameters.

[0028] Furthermore, both the first half-shell 10 and the second half-shell 11 include a three-layer structure consisting of an outer shell, an insulation interlayer, and an inner shell.

[0029] It should be noted that both the outer shell and inner shell of the first half-shell 10 and the second half-shell 11 are made of hard, smooth materials, such as high-strength alloys or engineering plastics. This ensures the overall structural strength of the shell and enhances airflow through the smooth surface, reducing flow resistance and facilitating the circulation of cooling airflow within the cavity. An insulation layer is located between the outer and inner shells and can be filled with aerogel or other insulation materials. When the external environment of the cooling component 2 is high-temperature and high-humidity, it can prevent heat or humidity from entering the cavity, increasing the weld cooling time and thus affecting construction progress. When the external temperature of the cooling component 2 is too low, the insulation layer in the shell prevents excessive heat loss from the cavity due to the low external temperature, thus preventing a sudden temperature drop and avoiding cracks or deformation of the pipe welds caused by excessively rapid cooling. This three-layer structure not only improves the structural stability of the cooling component 2 but also enhances the insulation and cold preservation effect of the internal cavity of the cooling component 2 during the cooling process.

[0030] Furthermore, the air intake pipe 3 and the air outlet pipe 4 are respectively equipped with a second temperature sensor 13 and a third temperature sensor 14, which are electrically connected to the display component 6.

[0031] It should be noted that the second temperature sensor 13 is installed on the inlet pipe 3 to monitor the initial temperature of the airflow entering the cooling assembly 2 in real time, and the third temperature sensor 14 is installed on the outlet pipe 4 to monitor the temperature of the airflow that flows out after absorbing heat from the pipe weld inside the cooling assembly 2 chamber. The second and third temperature sensors 13 and 14 are electrically connected to the display assembly 6, transmitting the monitored temperature data to the display assembly 6. The display assembly 6 can simultaneously display the temperatures of the airflow in the inlet pipe 3 and outlet pipe 4, allowing operators to more intuitively grasp the temperature data and ensuring the stability of the pipe weld cooling process. By comparing the temperature data monitored by the second and third temperature sensors 13 and 14, it can be determined whether the airflow speed should be reduced: if the temperature difference between the second and third temperature sensors 13 and 14 is too small, it indicates that the airflow speed is too fast, and the airflow speed can be reduced by adjusting the airflow speed regulating device 9.

[0032] Furthermore, the air intake direction of the air intake pipe 3 is tangent to the inner shell surface of the cooling component 2, so that the airflow entering the chamber forms a high-speed spiral airflow to cool the weld of the pipe.

[0033] It should be noted that the design of the air intake pipe 3 being tangential to the inner shell surface of the cooling component 2 allows the airflow to form a high-speed spiral motion along the inner wall of the cooling component 2 after entering the chamber. This spiral airflow can flow around the pipe weld and surrounding heat dissipation area, carrying away the heat dissipated from the weld area and improving cooling efficiency. At the same time, the circulating flow of the spiral airflow in the chamber can make the temperature distribution in the chamber more even, reducing the risk of cracking and deformation caused by excessive local temperature difference or insufficient cooling at the weld.

[0034] Furthermore, the display component 6 includes a receiver 15 and a display 16, which are electrically connected. The receiver 15 is used to receive temperature values ​​monitored by the first temperature sensor 5, the second temperature sensor 13, and the third temperature sensor 14, while the display 16 is used to display the temperature values.

[0035] It should be noted that the receiver 15 can not only receive the temperature data monitored by the first temperature sensor 5, the second temperature sensor 13 and the third temperature sensor 14 in real time, but also transmit the received temperature data to the display 16 synchronously. The display 16 can display the real-time temperature values ​​monitored by each temperature sensor, which makes it convenient for operators to grasp the cooling progress of the pipeline weld, and can also help determine whether the airflow speed provided by the gas supply device 7 is in line with the on-site working conditions.

[0036] Furthermore, the receiver 15 is also equipped with a processor 17 and multiple indicator lights 18. The processor 17 compares the temperature values ​​received by the receiver 15. When the temperature value monitored by the first temperature sensor 5 is greater than the preset cooling temperature value, the indicator light 18 is in a first state; when the temperature value monitored by the first temperature sensor 5 is less than or equal to the preset cooling temperature value, the indicator light 18 is in a second state; when any of the following conditions are met, the indicator light 18 is in a third state: the temperature value monitored by the second temperature sensor 13 exceeds the fluctuation range of the preset intake air temperature reference value; the temperature value monitored by the second temperature sensor 13 is greater than or equal to the temperature value monitored by the third temperature sensor 14, the temperature value monitored by the first temperature sensor 5 is less than or equal to the temperature value monitored by the third temperature sensor 14, the temperature value monitored by the second temperature sensor 13 is greater than or equal to the temperature value monitored by the first temperature sensor 5; the difference between the temperature value monitored by the third temperature sensor 14 and the temperature value monitored by the second temperature sensor 13 is less than a preset threshold.

[0037] It should be noted that the processor 17 can change the display state of the indicator light 18 by comparing the temperature values ​​monitored by the first temperature sensor 5, the second temperature sensor 13, and the third temperature sensor 14 received by the receiver 15. Different display states of the indicator light 18 correspond to different colored indicator lights. The preset cooling temperature value is T0, and this preset cooling temperature value is determined according to the type of weld seam in the pipe being cooled. The temperature monitored by the first temperature sensor 5 can be T1, the temperature monitored by the second temperature sensor 13 can be T2, and the temperature monitored by the third temperature sensor 14 can be T3. When T1 > T0, it is determined that the weld seam temperature has not reached the cooling standard, and the red indicator light 18 remains constantly lit. At this time, the indicator light 18 is in its first state, indicating to the operator that the cooling device is in operation. When T1 ≤ T0, it is determined that the weld seam temperature has reached the cooling standard, and the green indicator light 18 illuminates. When the red indicator light 18 goes out, it is in its second state, indicating to the operator that the weld cooling is complete and the machine can be stopped at any time. When any of the following situations occur, only the yellow indicator light 18 illuminates, indicating that the cooling device needs to be stopped for maintenance: First, the preset inlet air temperature reference value for the cooling airflow is set to T0', which can be determined based on the welding temperature of the weld seam of the cooled pipe. Second, the gas temperature T2 monitored by the second temperature sensor 13 in the inlet pipe 3 exceeds the preset inlet air temperature. The temperature fluctuation range of the reference temperature T0' is set, for example, T0' ± α℃. When T2 ≥ T0' + α, the yellow indicator light 18 illuminates, indicating that the airflow temperature entering the cooling component 2 has reached or exceeded the upper limit of the T0' fluctuation range. Excessive cooling airflow temperature affects the weld cooling effect and reduces cooling efficiency. When T2 ≤ T0' - α, the airflow temperature entering the cooling component 2 reaches or falls below the lower limit of the T0' fluctuation range. Excessive cooling airflow temperature can easily cause cracks and deformation in the weld due to rapid cooling, affecting the weld... The system has three functions: 1) ensuring the structural stability and connection strength of the seam; 2) when T2≥T3, T1≤T3, or T2≥T1, the yellow indicator light 18 illuminates, indicating a fault in the first temperature sensor 5, the second temperature sensor 13, or the third temperature sensor 14; 3) when the difference between the temperature value monitored by the third temperature sensor 14 and the temperature value monitored by the second temperature sensor 13 is less than a preset threshold, i.e., when the difference between T3 and T2 is too small, the yellow indicator light 18 illuminates, indicating that the airflow velocity is too fast and the operator needs to reduce the airflow velocity using the airflow velocity adjustment device 9.

[0038] Working principle: When cooling the pipe weld, the cooling component 2 is first placed on the pipe weld, so that the inner wall of the cooling component 2 and the outer wall of the pipe form a closed annular cavity. Then, the air supply device 7 in the air intake component 1 is started to continuously supply airflow. After the airflow speed is regulated by the airflow speed regulating device 9, the airflow enters the airflow temperature control device 8 for cooling. The airflow temperature control device 8 discharges the low-temperature airflow, which is then transported to the inside of the cavity through the air intake pipe 3 on the cooling component 2. Because the air intake direction of the intake pipe 3 is tangential to the inner shell surface of the cooling component 2, the airflow forms a high-speed spiral airflow in the annular cavity, flowing around the weld and surrounding area. Finally, the heat-absorbing airflow is discharged from the cavity through the exhaust pipe 4 on the cooling component 2. At the same time, the first temperature sensor 5 continuously monitors the weld temperature, the second temperature sensor 13 and the third temperature sensor 14 monitor the temperatures of the intake pipe 3 and the exhaust pipe 4, respectively. The receiver 15 of the display component 6 receives the temperature data monitored by each temperature sensor in real time and transmits the received temperature data synchronously to the display 16 for display. The processor 17 can change the display state of the indicator light 18 by comparing the temperature data monitored by each temperature sensor received by the receiver 15. Different indicator light 18 states correspond to different colored indicator lights: when the weld temperature has not reached the cooling temperature... When the standard is met, the red indicator light 18 remains constantly lit, indicating that the cooling device is in operation. When the weld temperature reaches the cooling standard, the green indicator light 18 illuminates, and the red indicator light 18 goes out, indicating that the weld cooling is complete and the machine can be stopped at any time. When the cooling device malfunctions, only the yellow indicator light 18 illuminates, indicating that the cooling device needs to be stopped for maintenance. By combining the status of indicator light 18 with temperature changes, operators can more intuitively grasp the cooling progress, adjust airflow parameters, or troubleshoot faults. Furthermore, this device provides a standardized cooling environment for pipeline weld cooling, achieving digital and visual temperature monitoring, ensuring pipeline welding quality while improving construction efficiency.

[0039] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A cooling device for hot-melt welds in pipelines, characterized in that, include: An air intake assembly (1) is used to provide an air source and cool the airflow; A cooling assembly (2) has openings at both ends along the length of the pipe to be welded. When the pipe passes through the openings, a closed chamber is formed between the inner wall of the cooling assembly (2) and the outer wall of the pipe. The chamber is used to contain the cooling airflow. The cooling assembly (2) is also provided with an air inlet pipe (3), an air outlet pipe (4), and a first temperature sensor (5). The air inlet pipe (3) and the air outlet pipe (4) are connected to the chamber. The air inlet pipe (3) is connected to the air inlet assembly (1). The first temperature sensor (5) is set corresponding to the position of the pipe weld and is used to monitor the weld temperature. The display component (6) is mounted on the cooling component (2), and the first temperature sensor (5) is electrically connected to the display component (6) to transmit the monitored temperature value to the display component (6).

2. The pipe hot-melt weld cooling device according to claim 1, characterized in that, The air intake assembly (1) includes an air supply device (7) and an airflow temperature control device (8). The air supply device (7) and the airflow temperature control device (8) are connected, and the airflow temperature control device (8) is connected to the air intake pipe (3).

3. A pipe hot-melt weld cooling device according to claim 2, characterized in that, The air intake assembly (1) also includes an airflow speed regulating device (9), which is connected to the air supply device (7) and is used to regulate the airflow speed entering the airflow temperature control device (8).

4. A pipe hot-melt weld cooling device according to claim 1, characterized in that, The cooling assembly (2) includes a first half-shell (10) and a second half-shell (11); the first half-shell (10) and the second half-shell (11) are both semi-annular structures, and end plates (12) are symmetrically provided at both ends along the radial direction. The end plates (12) are fixedly connected to the first half-shell (10) and the second half-shell (11), and the inner diameter of the first half-shell (10) and the second half-shell (11) matches the outer diameter of the pipe to be welded.

5. A pipe hot-melt weld cooling device according to claim 4, characterized in that, Both the first half-shell (10) and the second half-shell (11) include a three-layer structure consisting of an outer shell, an insulation interlayer, and an inner shell.

6. A pipe hot-melt weld cooling device according to claim 1, characterized in that, The air inlet pipe (3) and the air outlet pipe (4) are respectively provided with a second temperature sensor (13) and a third temperature sensor (14), and the second temperature sensor (13) and the third temperature sensor (14) are electrically connected to the display component (6).

7. A pipe hot-melt weld cooling device according to claim 1, characterized in that, The air intake pipe (3) is tangent to the inner shell surface of the cooling assembly (2) so that the airflow entering the chamber forms a high-speed spiral airflow cooling pipe weld.

8. A pipe hot-melt weld cooling device according to claim 6, characterized in that, The display component (6) includes a receiver (15) and a display (16), which are electrically connected. The receiver (15) is used to receive temperature values ​​monitored by the first temperature sensor (5), the second temperature sensor (13) and the third temperature sensor (14), and the display (16) is used to display the temperature values.

9. A pipe hot-melt weld cooling device according to claim 8, characterized in that, The receiver (15) is also equipped with a processor (17) and multiple indicator lights (18). The processor (17) compares the temperature values ​​received by the receiver (15). When the temperature value monitored by the first temperature sensor (5) is greater than the preset cooling temperature value, the indicator light (18) is in a first state; when the temperature value monitored by the first temperature sensor (5) is less than or equal to the preset cooling temperature value, the indicator light (18) is in a second state; when any of the following conditions are met, the indicator light (18) is in a third state: the temperature value monitored by the second temperature sensor (13) exceeds the fluctuation range of the preset intake air temperature reference value; the temperature value monitored by the second temperature sensor (13) is greater than or equal to the temperature value monitored by the third temperature sensor (14), the temperature value monitored by the first temperature sensor (5) is less than or equal to the temperature value monitored by the third temperature sensor (14), and the temperature value monitored by the second temperature sensor (13) is greater than or equal to the temperature value monitored by the first temperature sensor (5). The difference between the temperature value monitored by the third temperature sensor (14) and the temperature value monitored by the second temperature sensor (13) is less than a preset threshold.

Images