Oil and gas pipeline multi-channel heat tracing installation heat preservation heat conducting structure

Abstract

The utility model provides a kind of oil and gas pipeline multi-channel heat tracing installation heat preservation heat conduction structure, comprising: oil pipeline, a plurality of lugs are fixedly installed on the outer surface of oil pipeline, and the multi-channel assembly is detachably installed on the oil pipeline by the lugs, the outer surface of oil pipeline is provided with a thermal insulation layer, and the multi-channel assembly is located between the oil pipeline and the thermal insulation layer. It can stably connect the oil pipeline and efficiently transfer heat, adapt to different installation quantity requirements, reduce heat loss and isolate external moisture and corrosive media, maintain the temperature of long-distance oil pipeline, and prevent the condensation of the medium in the pipe. The heat tracing cable is accurately positioned, and the temperature measurement and signal transmission are real-time synchronized.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas pipeline transportation technology, specifically to a multi-channel heat tracing, insulation, and heat conduction structure for oil and gas pipelines. Background Technology

[0002] Oil and gas pipelines are core facilities for transporting oil and gas resources over long and ultra-long distances. To ensure the flowability of oil and gas media within the pipelines, heat tracing and insulation are necessary to maintain the temperature of the media. Existing oil and gas pipelines often employ a multi-point distributed heating mode, which provides heat to the transported media by setting up heating stations along the route, thereby achieving continuous oil and gas transportation.

[0003] However, current multi-channel heat tracing and insulation structures for oil and gas pipelines involve multi-point distributed heating of the transported medium, which is then transported through heating stations. In this method, the heat is affected by the ambient temperature. As the transport distance increases, the oil and gas output temperature drops to the freezing point, requiring secondary heating for transport. If the heating station is not heated in time or is damaged and not repaired in time, the medium in the pipeline will condense in the pipeline. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing a multi-channel heat tracing, insulation and heat conduction structure for oil and gas pipelines.

[0005] The specific technical solution is as follows: A multi-channel heat tracing and insulation structure for oil and gas pipelines includes: an oil pipeline, on which multiple protrusions are fixedly installed, and a multi-channel assembly is installed by disassembling the oil pipeline through the protrusions; an insulation layer is provided on the outer surface of the oil pipeline, and the multi-channel assembly is located between the oil pipeline and the insulation layer.

[0006] As a preferred embodiment of this utility model, the insulation layer consists of an inner layer, a middle layer, and an outer layer. The inner layer is made of high-density polyurethane foam, the middle layer is made of rock wool board, and the outer layer is made of cross-linked polyethylene.

[0007] As a preferred embodiment of the present invention, the multi-channel assembly includes a channel tube, which is detachably installed on the outer surface of the oil pipeline. The lower surface of the channel tube is provided with a concave hole that matches the protrusion. The channel tube is snapped into the protrusion through the concave hole and is in contact with the outer surface of the oil pipeline through the concave hole.

[0008] As a preferred embodiment of this utility model, both the channel tube and the protrusion are provided with coaxial threaded holes, and the threaded holes are internally threaded with fixing bolts.

[0009] As a preferred embodiment of this utility model, the channel pipe is provided with a heat-conducting groove, which is used to run a heat tracing cable to provide continuous temperature maintenance heating for the oil pipeline. Limiting blocks are fixedly installed on both sides of the inner wall of the heat-conducting groove, and a limiting arc ring is provided on the upper surface of the inner wall of the heat-conducting groove.

[0010] As a preferred embodiment of this utility model, one end of the channel tube is provided with two mounting holes, which are located at the lower end of the heat conduction groove. Temperature measuring cables and signal transmission cables are respectively threaded through the mounting holes to form independent temperature measuring channels and communication channels.

[0011] This utility model has the following beneficial effects: This utility model provides a multi-channel heat tracing and insulation structure for oil and gas pipelines. It can stably connect to the pipeline and efficiently transfer heat, adapting to different installation requirements. It reduces heat loss and isolates external moisture and corrosive media, ensuring continuous temperature maintenance for long-distance oil pipelines and preventing condensation of the media inside the pipe. The heat tracing cable is precisely positioned and its movement is restricted. Temperature measurement and signal transmission are synchronized in real time. Each channel is independently deployed and does not interfere with others. A heat tracing, temperature measurement, and signal transmission channel is simultaneously constructed between the pipeline and the insulation layer, ensuring stable long-distance oil and gas transportation and meeting the core requirements for temperature maintenance and data transmission. Attached Figure Description

[0012] Figure 1 A schematic diagram of the overall structure of the multi-channel heat tracing, insulation and heat conduction structure for oil and gas pipelines provided in this embodiment of the utility model; Figure 2 A schematic diagram of the inner layer structure of the multi-channel heat tracing and heat insulation structure for oil and gas pipelines provided in this embodiment of the utility model. Figure 3 A schematic diagram of the protrusion structure of the multi-channel heat tracing and heat insulation structure for oil and gas pipelines provided in this embodiment of the utility model. Figure 4 A schematic diagram of the multi-channel component structure of the multi-channel heat tracing and insulation heat conduction structure for oil and gas pipelines provided in this embodiment of the utility model; Figure 5 A schematic diagram of the heat-conducting groove structure of the multi-channel heat tracing and insulation heat-conducting structure for oil and gas pipelines provided in this embodiment of the utility model.

[0013] In the attached image: 1. Oil pipeline; 101. Protrusion; 2. Insulation layer; 201. Inner layer; 202. Middle layer; 203. Outer layer; 3. Multi-channel assembly; 301. Channel tube; 302. Heat conduction groove; 303. Recessed hole; 304. Fixing bolt; 305. Mounting tube; 306. Limiting arc ring; 307. Limiting block. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0016] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0017] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Example 1 The multi-channel heat tracing, insulation, and heat conduction structure for oil and gas pipelines provided in this embodiment, such as... Figures 1-5As shown, the assembly includes: an oil pipeline 1, with multiple protrusions 101 fixedly installed on its outer surface; a multi-channel component 3 is detachably installed on the oil pipeline 1 via the protrusions 101; an insulation layer 2 is provided on the outer surface of the oil pipeline 1; and the multi-channel component 3 is located between the oil pipeline 1 and the insulation layer 2. The insulation layer 2 consists of an inner layer 201, a middle layer 202, and an outer layer 203. The inner layer 201 is made of high-density polyurethane foam, the middle layer 202 is made of rock wool board, and the outer layer 203 is made of cross-linked polyethylene. The multi-channel component 3 includes a channel tube 301, which is detachably installed on the outer surface of the oil pipeline 1. The lower surface of the channel tube 301 has a recess 303 that matches the protrusions 101. The channel tube 301 is snapped into the protrusions 101 through the recess 303 and is also in contact with the outer surface of the oil pipeline 1 through the recess 303. Both the channel tube 301 and the protrusion 101 have coaxial threaded holes on one side, and the threaded holes are connected to fixing bolts 304.

[0019] Through the design of the insulation layer 2, oil pipeline 1, protrusion 101, channel pipe 301, and concave hole 303, the channel pipe 301 can be snapped onto the protrusion 101 through the concave hole 303 on its lower surface, so that it fits against the surface of the oil pipeline 1. Then, the fixing bolt 304 is threaded into the threaded hole, which can enhance the connection stability. The channel pipe 301 fits tightly with the oil pipeline 1, improving the heat transfer efficiency. The number of channel pipes 301 can be selected according to requirements. Then, the inner layer 201 fits the channel pipe 301 and the oil pipeline 1 to reduce heat loss. The middle layer 202 further blocks heat conduction. The outer layer 203 isolates external water vapor and corrosive media, protecting the internal structure. Thus, it can maintain a stable temperature for the long-distance oil pipeline 1 and prevent the medium inside the pipe from condensing due to temperature drop.

[0020] Example 2 The embodiment provides a multi-channel heat tracing and insulation structure without oil and gas pipelines, such as... Figures 3-5 As shown, the system includes: a heat-conducting groove 302 within a channel pipe 301, which is used to run a heat-tracing cable to provide continuous temperature maintenance for the oil pipeline 1. Limiting blocks 307 are fixedly installed on both sides of the inner wall of the heat-conducting groove 302, and a limiting arc-shaped ring 306 is provided on the upper surface of the inner wall of the heat-conducting groove 302. Two mounting holes 305 are provided at one end of the channel pipe 301, located at the lower end of the heat-conducting groove 302. A temperature-measuring cable and a signal transmission cable are respectively run through the mounting holes 305, forming an independent temperature-measuring channel and a communication channel.

[0021] Through the design of the heat-conducting groove 302, the limiting block 307, and the installation pipe hole 305, after the heat-tracing cable is inserted into the heat-conducting groove 302, the limiting block 307 restricts the position of the heat-tracing cable from both sides. The limiting arc ring 306 can reduce the activity area of ​​the heat-tracing cable in the heat-conducting groove 302, so that the heat-tracing cable fits against the inner wall of the heat-conducting groove 302. Heat is transferred to the oil pipeline 1 through the heat-conducting groove 302. The temperature measuring cable senses the temperature of the oil pipeline 1 in real time in the installation pipe hole 305. The signal transmission cable transmits the temperature data synchronously. Each channel is independently laid out and does not interfere with each other, ensuring the stability of heat tracing and data transmission. Thus, it is possible to simultaneously construct a heat-tracing cable installation channel, a temperature measuring channel, and a signal transmission channel between the oil pipeline 1 and the insulation layer 2, meeting the temperature maintenance and data transmission requirements of long-distance oil and gas transportation.

[0022] In summary, the multi-channel heat tracing and insulation structure for oil and gas pipelines provided in this embodiment has the following advantages: a multi-channel component 3 is set on the outer surface of the oil pipeline 1, and the channel pipe 301 is fixed by being snapped into the protrusion 101 through the concave hole 303. The heat conduction groove 302 is used to continuously maintain the temperature through the heat tracing cable, the insulation layer 2 prevents heat loss, and the installation pipe hole 305 is used to lay the temperature measuring cable to transmit data, so as to realize long-distance continuous heat replenishment, avoid the medium from condensing due to cooling, and eliminate the need for secondary heating by the heating station.

[0023] In use, the protrusion 101 on the outer surface of the oil pipeline 1 engages with the concave hole 303 of the channel pipe 301, and is then locked by the fixing bolt 304, so that the channel pipe 301 is tightly attached to the oil pipeline 1 to form a stable installation base. The heat tracing cable running through the heat conduction groove 302 generates heat after being energized. The heat is quickly conducted to the oil pipeline 1 through the tightly attached channel pipe 301, providing continuous heat supply to the medium inside the pipe. The inner layer 201 of the insulation layer 2 is attached to the channel pipe 301 and the oil pipeline 1 to reduce heat loss to the outside. The middle layer 202 further blocks heat conduction, and the outer layer 203 isolates the influence of the external environment, forming triple heat insulation protection. The temperature measuring cable in the installation pipe hole 305 senses the temperature of the oil pipeline 1 in real time, and the signal transmission cable synchronously feeds back the temperature data, providing a basis for adjusting the heat output of the heat tracing cable and ensuring that the pipeline temperature is maintained above the freezing point of the medium.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-channel heat tracing, insulation, and heat conduction structure for oil and gas pipelines, characterized in that, include: An oil pipeline (1) is provided with multiple protrusions (101) fixedly installed on its outer surface. The oil pipeline (1) is disassembled and installed with a multi-channel component (3) through the protrusions (101). The outer surface of the oil pipeline (1) is provided with a heat insulation layer (2). The multi-channel component (3) is located between the oil pipeline (1) and the heat insulation layer (2).

2. The multi-channel heat tracing and insulation structure for oil and gas pipelines according to claim 1, characterized in that, The insulation layer (2) consists of an inner layer (201), a middle layer (202), and an outer layer (203). The inner layer (201) is made of high-density polyurethane foam, the middle layer (202) is made of rock wool board, and the outer layer (203) is made of cross-linked polyethylene.

3. The multi-channel heat tracing and insulation structure for oil and gas pipelines according to claim 2, characterized in that, The multi-channel assembly (3) includes a channel tube (301), which is detachably installed on the outer surface of the oil pipeline (1). The lower surface of the channel tube (301) is provided with a recess (303) that is adapted to the protrusion (101). The channel tube (301) is snapped onto the protrusion (101) through the recess (303) and is in contact with the outer surface of the oil pipeline (1) through the recess (303).

4. The multi-channel heat tracing and insulation structure for oil and gas pipelines according to claim 3, characterized in that, Both the channel tube (301) and the protrusion (101) are provided with coaxial threaded holes on one side, and a fixing bolt (304) is threaded into the threaded hole.

5. The multi-channel heat tracing and insulation structure for oil and gas pipelines according to claim 4, characterized in that, The channel pipe (301) is provided with a heat-conducting groove (302), which is used to run a heat-tracing cable to provide continuous temperature maintenance heating for the oil pipeline (1). Limiting blocks (307) are fixedly installed on both sides of the inner wall of the heat-conducting groove (302), and a limiting arc ring (306) is provided on the upper surface of the inner wall of the heat-conducting groove (302).

6. The multi-channel heat tracing and insulation structure for oil and gas pipelines according to claim 5, characterized in that, The channel tube (301) has two mounting holes (305) at one end. The mounting holes (305) are located at the lower end of the heat conduction groove (302). Temperature measuring cables and signal transmission cables are respectively installed in the mounting holes (305) to form independent temperature measuring channels and communication channels.

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