Pipeline heat tracing device
By designing baffles and partitions in the pipeline, the pipeline heat tracing device utilizes multiple steam turns and external insulation materials to solve the problems of low efficiency and poor safety of electric heat tracing, achieving efficient pipeline insulation and safe heating.
Patent Information
- Application Number
- CN202423046701.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing electric heat tracing devices are inefficient and pose a risk of electric sparks during natural gas extraction, affecting well site safety.
Design a pipeline heat tracing device that employs multiple baffles and partitions. Through a hollow chamber connected by a steam inlet and outlet, the steam turns multiple times between the baffles and partitions, extending the residence time and distributing heat evenly. Combined with external insulation materials, it can improve heat exchange efficiency and safety.
It improves pipeline heat tracing efficiency, enhances pipeline insulation, improves well site safety, and reduces the risk of electrical sparks.
Smart Images
Figure CN223537207U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline heat tracing technology, and in particular to a pipeline heat tracing device. Background Technology
[0002] During natural gas extraction, as the external ambient temperature decreases, liquid water in the natural gas easily condenses to form hydrates, which can clog pipelines. To prevent this phenomenon, heat tracing devices are generally installed on pipelines prone to icing. Electric heat tracing devices are commonly used; however, electric heat tracing has poor heat exchange efficiency, and improper installation can easily generate electric sparks, endangering well site safety. Utility Model Content
[0003] This utility model provides a pipeline heat tracing device, which can effectively improve the pipeline heat tracing efficiency, enhance the pipeline insulation effect, and improve the safety of the well site.
[0004] This application provides a pipeline heat tracing device, comprising: a first shell having a hollow cavity, a first opening and a second opening at both ends along its length, and a steam inlet and a steam outlet at each end along its length; a plurality of baffles disposed within the hollow cavity, the baffles being stacked sequentially and spaced apart along the length of the first shell, a portion of the edge of each baffle being connected to the inner wall of the first shell, a gas channel being formed between the baffles, the gas channel connecting the steam inlet and the steam outlet; and a partition plate disposed between two adjacent baffles, the partition plate having a through hole along its thickness direction, the thickness direction of the partition plate intersecting the length direction of the first shell.
[0005] According to the foregoing embodiments of this application, there are multiple partitions, which are arranged sequentially at intervals along the circumference of the first housing.
[0006] According to any of the foregoing embodiments of this application, each baffle is perpendicular to the inner wall of the first housing, and the spacing between adjacent baffles in the length direction of the first housing ranges from 60mm to 90mm.
[0007] According to any of the foregoing embodiments of this application, any two adjacent baffles have an axisymmetric structure, and the axis of symmetry of the baffles extends along the length direction of the shell.
[0008] According to any of the foregoing embodiments of this application, the first housing includes a first sub-part and a second sub-part that are fastened to each other. The edge of the first sub-part is provided with a first fastening part, and the edge of the second sub-part is provided with a second fastening part. The first fastening part and the second fastening part are sealed together.
[0009] According to any of the foregoing embodiments of this application, the first fastening part is a groove extending along the edge of the first housing, and the second fastening part is accommodated in the groove and is interference-fitted with the groove.
[0010] According to any of the foregoing embodiments of the present application, a first sealing element is provided between the first fastening part and the second fastening part.
[0011] According to any of the foregoing embodiments of the present application, the first opening and the second opening are respectively provided with connecting flange assemblies.
[0012] According to any of the foregoing embodiments of the present application, the connecting flange assembly includes a second seal.
[0013] According to any of the foregoing embodiments of the present application, the pipe heat tracing device further includes a second housing, which is disposed outside the first housing, and the second housing is made of heat insulation material.
[0014] According to the pipeline heat tracing device of this application embodiment, during use, steam enters the hollow cavity from the steam inlet at one end of the first shell. After multiple turns and heat exchange, the steam finally exits from the steam outlet at the other end of the first shell. The steam entering the hollow cavity then flows in the gas channel formed between multiple baffles. The baffles change the flow direction of the steam, causing it to turn multiple times in the hollow cavity, prolonging the residence time of the steam in the device, improving heat exchange efficiency and well site safety. At the same time, since baffles with through holes are also provided between adjacent baffles, they further disrupt the steam flow. Through the setting of baffles, the steam can continuously change direction during the flow process, further improving the heat exchange effect. Moreover, the more complex flow of steam in the gas channel also makes the heat distribution more uniform, enhancing the pipeline insulation effect. Attached Figure Description
[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.
[0016] Figure 1 This is a schematic diagram of the cross-section of a pipe heat tracing device according to an embodiment of this application;
[0017] Figure 2 This is a schematic diagram of the structure of a pipeline heat tracing device according to a previous embodiment of this application;
[0018] Figure 3 This is a schematic diagram of the structure of the first housing from one perspective in the previous embodiment of this application.
[0019] Figure label:
[0020] 100 - Pipeline heat tracing device;
[0021] 10-First housing; 11-First opening; 12-Second opening; 13-Steam inlet; 14-Steam outlet; 15-First sub-section; 15a-First fastening part; 16-Second sub-section; 16a-Second fastening part; 17-Flange assembly;
[0022] 20 - Baffle plate; d - Spacing;
[0023] 30 - partition; 31 - through hole. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings.
[0025] This utility model provides a pipeline heat tracing device, which can effectively improve the pipeline heat tracing efficiency, enhance the pipeline insulation effect, and improve the safety of the well site.
[0026] Figure 1 This is a schematic diagram of the cross-section of a pipe heat tracing device according to an embodiment of this application; Figure 2 This is a structural schematic diagram of a pipeline heat tracing device according to a previous embodiment of this application. For example... Figure 1-2 As shown, this application embodiment provides a pipe heat tracing device 100. The pipe heat tracing device 100 includes a first housing 10, a plurality of baffles 20, and a partition 30. The first housing 10 has a hollow cavity, and a first opening 11 and a second opening 12 are provided at both ends along its length. The first housing 10 also has a steam inlet 13 and a steam outlet 14 at both ends along its length. The plurality of baffles 20 are disposed within the hollow cavity, and are stacked sequentially and spaced apart along the length of the first housing 10. A portion of the edge of each baffle 20 is connected to the inner wall of the first housing 10. A gas channel is formed between the plurality of baffles 20. The gas channel connects the steam inlet 13 and the steam outlet 14. The partition 30 is disposed between two adjacent baffles 20. The partition 30 has a through hole 31 along its thickness direction, and the thickness direction of the partition 30 intersects with the length direction of the first housing 10.
[0027] It is understandable that the first opening 11 and the second opening 12 at both ends of the first housing 10 along its own length are two openings for the pipe to pass through. The pipe heat tracing device 100 is set outside the pipe, so the pipe can be fully heated inside the pipe heat tracing device 100 and then continue its transportation task.
[0028] It should be noted that the main function of the baffle plate 20 is to change the flow direction of the steam inside the pipe heat tracing device 100, causing the steam to turn multiple times within the hollow cavity, thereby prolonging the residence time of the steam within the pipe heat tracing device 100. The baffle plate 30 is disposed between two adjacent baffle plates 20 and has through holes 31 along its thickness direction. These through holes 31 allow steam to pass through, further disrupting the steam flow, resulting in a more uniform heat distribution, and simultaneously increasing the residence time of the steam within the hollow cavity. This not only improves the heat exchange effect but also enhances the structural strength of the device.
[0029] The number of partitions 30 can be one or more, and the number of through holes 31 provided on the partitions 30 can also be one or more. The shape and arrangement rules of the through holes 31 are not limited in this embodiment.
[0030] According to the pipeline heat tracing device 100 of this application embodiment, during use, steam enters the hollow cavity from the steam inlet 13 at one end of the first housing 10. The steam entering the hollow cavity then flows in the gas channel formed between multiple baffles 20. The baffles 20 change the flow direction of the steam, causing it to turn multiple times in the hollow cavity, prolonging the residence time of the steam in the device, improving heat exchange efficiency and well site safety. At the same time, since baffles 30 with through holes 31 are also provided between adjacent baffles 20, they further disrupt the steam flow. Through the setting of baffles 30, the steam can continuously change direction during the flow process, further improving the heat exchange effect, and the more complex flow of steam in the gas channel also makes the heat distribution more uniform. After multiple turns and heat exchange, the steam finally exits from the steam outlet 14 at the other end of the first housing 10.
[0031] like Figure 1 As shown, in some embodiments, there are multiple partitions 30. The multiple partitions 30 are arranged sequentially at intervals along the circumference of the first housing 10.
[0032] In this embodiment, multiple baffles 30 arranged at intervals along the circumference of the first shell 10 can more effectively and evenly distribute the heat of the steam throughout the entire heat tracing device, thereby improving the heat tracing effect. Simultaneously, the multiple baffles 30 serve as structural supports, enhancing the overall strength and stability of the first shell 10 and ensuring the reliability and safety of the heat tracing device during long-term use. The multiple baffles 30 can alter the flow path of steam within the device, making it more complex and turbulent, and increase the residence time of steam within the hollow cavity, thereby improving the heat tracing effect.
[0033] like Figure 1As shown, in some embodiments, each baffle 20 is perpendicular to the inner wall of the first housing 10, and the spacing d between adjacent baffles 20 in the length direction of the first housing 10 ranges from 60mm to 90mm.
[0034] In this embodiment, the spacing d between adjacent baffles 20 along the length of the first housing 10 can be any value between 60mm and 90mm, including 60mm and 90mm. Within this range of spacing d, smooth fluid flow can be ensured while achieving high heat exchange efficiency.
[0035] like Figure 1 As shown, in some embodiments, any two adjacent baffles 20 have an axisymmetric structure, and the axis of symmetry of the baffles 20 extends along the length direction of the first housing.
[0036] In this embodiment, since any two adjacent baffles 20 have an axisymmetric structure, with the axis of symmetry extending along the length of the first shell 10, the flow direction of the fluid within the shell can be guided more effectively, allowing the fluid to flow along a predetermined path. This increases the contact time and contact area between the fluid and the pipe, thereby improving heat exchange efficiency. Secondly, it allows the fluid to maintain a relatively uniform flow state when passing through the gap between adjacent baffles 20. Simultaneously, the axisymmetric structure makes the arrangement of the baffles 20 within the shell more balanced, contributing to enhanced structural stability of the entire heat exchanger. Furthermore, the axisymmetric structure simplifies the manufacturing and installation process of the baffles 20. Because the baffles 20 have a regular and symmetrical shape, they can be more easily processed and assembled, thereby reducing manufacturing costs and improving production efficiency.
[0037] like Figure 2 As shown, in some embodiments, the first opening 11 and the second opening 12 are respectively provided with connecting flange assemblies 17.
[0038] In this embodiment, when it is necessary to increase the length of the pipe heat tracing, multiple pipe heat tracing devices 100 can be connected to the outside of the pipe along the length of the pipe. The multiple pipe heat tracing devices 100 are connected end to end through the connecting flange assembly 17 provided at the first opening 11 and the second opening 12, which makes installation and disassembly simple and convenient.
[0039] like Figure 2 As shown, in some embodiments, the connecting flange assembly 17 includes a second seal to ensure the sealing performance and reliability of the flange connection, thereby enabling effective heating and insulation of the pipeline.
[0040] In some embodiments, the pipe heat tracing device 100 further includes a second housing that covers the outside of the first housing 10. The second housing is made of an insulation material, such as rock wool, fiberglass, polyurethane foam, etc.
[0041] In this embodiment, the second housing is installed outside the first housing 10. On the one hand, the second housing can reduce the loss of steam heat in the hollow cavity of the first housing 10 and improve the energy efficiency of the pipe heat tracing device 100. On the other hand, the second housing also plays a certain protective role, preventing the risk of burns caused by workers coming into contact with high-temperature surfaces and enhancing the safety of the pipe heat tracing device 100.
[0042] like Figure 2-3 As shown, in some embodiments, the first housing 10 includes a first sub-part 15 and a second sub-part 16 that are interlocked with each other. The edge of the first sub-part 15 is provided with a first interlocking part 15a, and the edge of the second sub-part 16 is provided with a second interlocking part 16a. The first interlocking part 15a and the second interlocking part 16a are sealed together.
[0043] It should be noted that the first engaging part 15a and the second engaging part 16a are of matching shapes to ensure that the two sub-parts can be tightly engaged together.
[0044] In this embodiment, when the pipe heat tracing device 100 is in use, the first sub-part 15 and the second sub-part 16 can be assembled to the outside of the pipe, and the first fastening part 15a on the edge of the first sub-part 15 and the second fastening part 16a on the edge of the second sub-part 16 can be sealed together to prevent fluid or gas leakage.
[0045] like Figure 3 As shown, in some embodiments, the first fastening part 15a is a groove extending along the edge of the first housing 10, and the second fastening part 16a is accommodated in the groove and is interference-fitted with the groove, so that the first fastening part 15a and the second fastening part 16a can be tightly connected.
[0046] Furthermore, the first engaging part 15a and the second engaging part 16a are connected by fasteners such as bolts and nuts to ensure the reliability of the connection between the first engaging part 15a and the second engaging part 16a.
[0047] like Figure 3 As shown, in some embodiments, a first sealing element is provided between the first engaging portion 15a and the second engaging portion 16a, which improves the sealing performance between the first engaging portion 15a and the second engaging portion 16a and prevents fluid or gas leakage. The first sealing element includes a sealing gasket or sealing filler.
[0048] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A pipeline heat tracing device, characterized in that, include: The first housing has a hollow cavity. The first housing has a first opening and a second opening at both ends along its length. The first housing also has a steam inlet and a steam outlet at both ends along its length. Multiple baffles are disposed in the hollow cavity. The multiple baffles are stacked sequentially and spaced apart along the length direction of the first shell. A portion of the edge of each baffle is connected to the inner wall of the first shell. A gas channel is formed between the multiple baffles. The gas channel connects the steam inlet and the steam outlet. as well as A partition is disposed between two adjacent baffles. The partition has through holes along its own thickness direction, and the thickness direction of the partition intersects with the length direction of the first housing.
2. The pipeline heat tracing device as described in claim 1, characterized in that, The number of partitions is multiple, and the multiple partitions are arranged at intervals along the circumference of the first housing.
3. The pipeline heat tracing device as described in claim 1, characterized in that, Each of the baffles is perpendicular to the inner wall of the first housing, and the spacing between adjacent baffles along the length of the first housing ranges from 60mm to 90mm.
4. The pipeline heat tracing device as described in claim 1, characterized in that, Any two adjacent baffles have an axisymmetric structure, and the axis of symmetry of the baffles extends along the length of the first housing.
5. The pipeline heat tracing device as described in claim 1, characterized in that, The first housing includes a first sub-part and a second sub-part that are interlocked with each other. The edge of the first sub-part is provided with a first interlocking part, and the edge of the second sub-part is provided with a second interlocking part. The first interlocking part and the second interlocking part are sealed together.
6. The pipeline heat tracing device as described in claim 5, characterized in that, The first fastening part is a groove extending along the edge of the first housing, and the second fastening part is accommodated in the groove and is interference-fitted with the groove.
7. The pipeline heat tracing device as described in claim 5 or 6, characterized in that, A first sealing element is provided between the first fastening part and the second fastening part.
8. The pipeline heat tracing device as described in claim 1, characterized in that, The first opening and the second opening are respectively provided with connecting flange assemblies.
9. The pipeline heat tracing device as described in claim 8, characterized in that, The connecting flange assembly includes a second seal.
10. The pipeline heat tracing device as described in claim 1, characterized in that, The pipe heat tracing device also includes a second housing, which is covered outside the first housing and is made of heat insulation material.