A heat tracing sleeve assembly for a delivery pipeline
By setting up a heat tracing pipe group and a heat tracing loop around the outside of the conveying pipeline, combined with heat-conducting materials and insulation layers, the problem of uneven heating of the pipeline under the resistance wire heating method is solved, and uniform heating and temperature control are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIAN SHANHAI PETROLEUM PRODUCTS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing technology, the resistance wire heating method results in a small heat exchange area in the conveying pipeline, concentrated heat, and uneven heating of the entire pipeline.
The heat tracing loop consists of heat tracing pipe groups and surrounding pipes, combined with heat-conducting materials and insulation layers. The medium is circulated through a circulating pump and heat source device, and a temperature detection device is equipped to adjust the temperature in real time.
It improves the heat tracing effect of pipelines, ensures uniform heating of pipelines, reduces heat loss, avoids solidification, and achieves temperature control during transportation.
Smart Images
Figure CN224283931U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline heat tracing technology, specifically to a heat tracing sleeve assembly for a conveying pipeline. Background Technology
[0002] If the temperature is low inside the transformer oil conveying pipeline, its internal viscosity will increase, and it may even solidify. Therefore, in order to ensure the smooth flow of the transformer oil during the transportation process, corresponding measures must be taken to ensure its temperature during transportation. In the existing heat tracing devices, resistance wires are usually installed around the outside of the conveying pipeline to ensure the temperature during transportation. Although this technical solution can ensure the internal temperature of the transformer oil, the resistance wires are thin and the heat exchange area is small, resulting in heat being concentrated in the area where they are installed, which leads to uneven heating of the entire pipeline. Utility Model Content
[0003] To address the issues of small heat exchange area and uneven heating of the pipeline caused by resistance wire heating in the aforementioned technologies, this invention provides a heat tracing sleeve assembly for a conveying pipeline.
[0004] The technical solution of this utility model is as follows:
[0005] A heat tracing sleeve assembly for a pipeline includes:
[0006] A heat tracing pipe assembly, the heat tracing pipe assembly comprising a plurality of heat tracing pipes arranged around the outside of the delivery pipe along its length;
[0007] The surrounding pipe is arranged between adjacent heat tracing pipe groups and connected to the heat tracing pipe groups at multiple points to form a fluid-connected heat tracing circuit;
[0008] Thermally conductive material is filled in the gap between the heat tracing pipe assembly and the surrounding pipe;
[0009] A temperature detection device is installed on the outer circumference of the conveying pipeline.
[0010] To enhance the heat tracing effect of the heat tracing pipe assembly, the surrounding pipe is arranged at intervals along the axial direction of the heat tracing pipe assembly, covering at least both ends and the middle of the heat tracing pipe assembly. The heat tracing pipe assembly and the surrounding pipe are connected through a connecting pipe section to realize the flow and circulation of the heat tracing medium between the heat tracing pipe assembly and the surrounding pipe.
[0011] To improve the heat tracing effect of the heat tracing pipe assembly, the heat tracing pipe assembly is attached to the outer surface of the conveying pipeline in at least one of the following methods: in a straight line distribution or a surrounding distribution.
[0012] To improve the circulation capacity of the heat source, a circulation pump and a heat source device are also included. One end of the circulation pump is connected to the fluid circuit of the heat tracing pipe assembly, and the other end of the circulation pump is connected to the heat source device.
[0013] To provide a more sufficient heat source, the heat tracing medium in the heat source device is at least one of water, steam, or heat transfer oil.
[0014] To enhance the heat tracing effect and reduce heat loss during the heat tracing process, an insulation layer is also included. Along the length of the conveying pipe, the insulation layer is tightly wrapped around the outside of the heat tracing pipe assembly and the surrounding pipe.
[0015] To form a denser heat-conducting layer and improve conductivity, the gap between the heat tracing pipe assembly and the delivery pipe is filled with the heat-conducting material to form a tightly fitting heat-conducting layer. The thickness of the heat-conducting layer is 1-5mm to ensure efficient heat conduction between the heat tracing pipe assembly and the delivery pipe.
[0016] The beneficial effects of this utility model are as follows: By arranging a heat tracing pipe group around the outside of the conveying pipeline, the contact area is increased, which can effectively improve the heat tracing effect of the heat tracing device. In addition, by setting a temperature detection device on the surface of the heat tracing pipe group, the heating temperature of the heat tracing pipe group can be detected in real time, so as to adjust its optimal temperature and reduce the occurrence of excessive or insufficient heat use, thereby ensuring that the pipeline can be heated evenly during transportation. Attached Figure Description
[0017] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.
[0018] In the attached diagram:
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of this utility model (including thermally conductive materials);
[0021] Figure 3 This is a schematic diagram of the structure of this utility model (including the insulation layer);
[0022] Figure 4 This is a front view structural diagram of the present invention;
[0023] Figure 5 This is a front view structural diagram of the present invention (including the insulation layer).
[0024] Figure 6This is a schematic diagram of the cross-sectional structure of the pipe in the heat tracing pipe assembly of this utility model.
[0025] The components represented by the various reference numerals in the diagram are:
[0026] 1. Delivery pipeline; 2. Heat tracing pipe assembly; 3. Circulating pipeline; 4. Heat-conducting material; 5. Temperature detection device; 6. Circulating pump; 7. Heat source device; 8. Insulation layer. Detailed Implementation
[0027] Example
[0028] like Figure 1-5 The illustrated heat tracing sleeve assembly for a conveying pipeline includes a conveying pipeline 1, a heat tracing pipe assembly 2, a heat-conducting material 4, a surrounding pipe 3, and a temperature detection device 5. Multiple sets of heat tracing pipe assemblies 2 are provided; preferably, in this embodiment, six sets of heat tracing pipe assemblies 2 are provided. The heat tracing pipe assemblies 2 are arranged in a surrounding manner around the outer circumference of the conveying pipeline 1, and are attached to the outer surface of the conveying pipeline 1 in a straight-line or surrounding manner. Preferably, in this embodiment, the heat tracing pipe assemblies 2 are arranged in a straight-line manner on the outer surface of the conveying pipeline 1. The heat-conducting material 4 fills the space between the heat tracing pipe assembly 2 and the conveying pipeline 1 to transfer heat from the heat tracing pipe assembly 2 to the conveying pipeline 1. The heat-conducting material 4 is selected as a powdered or paste-like heat-conducting medium, including one of boron nitride, alumina powder, or silicon dioxide powder. Preferably, in this embodiment, alumina powder is selected as the heat-conducting material 4.
[0029] Please refer to the appendix. Figure 1-5 The surrounding pipe 3 is connected to the heat tracing pipe group 2 at multiple points, thereby forming a heat tracing loop. The surrounding pipe 3 is arranged at intervals along the circumference of the heat tracing pipe group 2, and at least covers both ends and the middle of the heat tracing pipe group 2. The connection between the surrounding pipe 3 and the heat tracing pipe group 2 is continuous, so as to realize the circulation of the heat tracing medium between the surrounding pipe 3 and the heat tracing pipe group 2. Preferably, in this embodiment, there are 3 sets of surrounding pipe 3, which are respectively arranged at both ends and the middle of the heat tracing pipe group 2.
[0030] See attached document Figure 1-6 The device also includes a circulating pump 6 and a heat source device 7. The circulating pump 6 is located below the heat tracing pipe assembly 2 and is fixedly connected to the surrounding pipe 3 via a pipe. It is used to drive the heat tracing medium to flow inside the heat tracing pipe assembly 2 and the surrounding pipe 3. The heat source device 7 is located on one side of the circulating pump 6 and is fixedly connected to the circulating pump 6. The heat source device 7 is used to place and heat the heat tracing medium, providing heat tracing medium to the heat tracing pipe assembly 2 and the surrounding pipe 3. The heat tracing medium can be selected from water, steam, and heat transfer oil. Preferably, in this embodiment, the heat tracing medium is water.
[0031] See attached document Figure 3 and attached Figure 5 The device also includes a heat insulation layer 8, which is arranged axially along the conveying pipe 1 and surrounds the outside of the heat tracing pipe assembly 2. Specifically, the heat insulation layer 8 is tightly wrapped around the outside of the heat tracing pipe assembly 2 axially and around the outside of the surrounding pipe 3, and the heat-conducting material 4 is fixed to the outside of the gap between the heat tracing pipe assembly 2 and the surrounding pipe 3 to reduce heat loss between the heat tracing pipe assembly 2 and the conveying pipe 1. The thickness of the heat-conducting layer formed by the heat-conducting material filling the outside of the conveying pipe 1 is 1-5mm. Preferably, in this example, the thickness of the heat-conducting material is set to 4mm.
[0032] It is worth noting that, in order to improve the heat tracing capacity of the heat tracing pipe assembly 2 and increase the contact area between the heat tracing pipe assembly 2 and the conveying pipe 1, the cross-sectional structure of the heat tracing pipe in the heat tracing pipe assembly 2 in this embodiment is arranged in a fan shape, such as... Figure 6 As shown, the side of the heat tracing pipe near the surface of the conveying pipe 1 is arc-shaped, and the space between it and the conveying pipe 1 is filled with heat-conducting material 4.
[0033] Temperature detection device 5 is set on the outer circumference of the conveying pipe 1 and passes through the heat-conducting material 4 and the insulation layer 8. It is used to monitor the surface temperature of the conveying pipe 1 in real time and is electrically connected to the heat source device 7. It can reflect the temperature of the conveying pipe 1 in real time, prompting the staff to adjust the heating power of the heat source device 7 and the flow rate of the circulation pump 6.
[0034] Combining the above content and appendix Figure 1-6 The working principle of this equipment is as follows: the heat tracing pipe group 2 is distributed vertically on the outside of the conveying pipe 1 and is fixedly connected to the surrounding pipe 3. The connected structure is arranged around the outside of the conveying pipe 1. An insulation layer 8 is installed on the outside of the heat tracing pipe group 2 and the surrounding pipe 3. The insulation layer 8 is not sealed. Alumina powder is filled inside the insulation layer 8 as a heat-conducting material 4. The insulation layer 8 is then sealed to complete the insulation and encapsulation.
[0035] When the oil liquid inside the conveying pipeline 1 is being transported, the circulating pump 6 transfers the heat tracing medium from the heat source device 7 to the heat tracing pipe group 2. The heat tracing medium circulates inside the heat tracing pipe group 2 and the surrounding pipe 3. The flowing heat tracing medium transfers heat from the heat tracing pipe group 2 and the surrounding pipe 3 to the conveying pipeline. The temperature detection device 5 detects the temperature outside the conveying pipeline 1 and reflects the temperature in real time. Then, the staff adjusts the temperature inside the heat source device 7 and the flow rate of the circulating pump 6 to regulate the heat tracing system.
[0036] In summary, the beneficial effects of this utility model are as follows: by setting a heat tracing pipe assembly on the outside of the conveying pipeline, with surrounding pipes at both ends and the middle of the heat tracing pipe assembly, a heat insulation layer tightly wrapped around the outer surface of the heat tracing pipe assembly, and filling the space between the heat tracing pipe assembly and the heat insulation layer with heat-conducting material, the heat tracing effect of the system can be effectively improved, heat loss during the heat tracing process can be reduced, and the solidification phenomenon during pipeline transportation can be effectively avoided.
Claims
1. A heat tracing jacket assembly for a transport pipeline (1) arranged on the outer surface of the transport pipeline (1), characterized in that, include: A heat tracing pipe assembly (2) comprising a plurality of heat tracing pipes arranged around the outside of the delivery pipe (1) along its length. The surrounding pipe (3) is arranged between adjacent heat tracing pipe groups (2) and connected to the heat tracing pipe groups (2) at multiple points to form a fluid-connected heat tracing circuit; Thermally conductive material (4) is used to fill the gap between the heat tracing pipe assembly (2) and the surrounding pipe (3); Temperature detection device (5) is located on the outer circumference of the conveying pipe (1).
2. A conduit heating jacket assembly according to claim 1, wherein, The surrounding pipe (3) is spaced along the length of the conveying pipe (1), covering at least both ends and the middle of the heat tracing pipe group (2), and the heat tracing pipe group (2) and the surrounding pipe (3) are connected through a connecting pipe section to realize the flow and circulation of the heat tracing medium between the heat tracing pipe group (2) and the surrounding pipe (3).
3. A conduit heating jacket assembly according to claim 2, wherein, Furthermore, the heat tracing pipe assembly (2) is attached to the outer surface of the conveying pipe (1) by at least one of the following methods: in a straight line or in a circumferential arrangement.
4. The heat tracing sleeve assembly for a conveying pipeline according to claim 1, characterized in that, It also includes a circulating pump (6) and a heat source device (7), one end of which is connected to the fluid circuit of the heat tracing pipe group (2); the other end of which is connected to the heat source device (7).
5. A heat tracing sleeve assembly for a conveying pipeline according to claim 4, characterized in that, The heat tracing medium in the heat source device (7) is at least one of water, steam or heat transfer oil.
6. The heat tracing sleeve assembly for a conveying pipeline according to claim 1, characterized in that, It also includes an insulation layer (8), which is tightly wrapped around the outside of the heat tracing pipe group (2) and the surrounding pipe (3) along the length of the conveying pipe (1).
7. The heat tracing sleeve assembly for a conveying pipeline according to claim 1, characterized in that, The gap between the heat tracing pipe assembly (2) and the conveying pipe (1) is filled by the heat-conducting material (4) to form a tightly fitting heat-conducting layer with a thickness of 1-5 mm.