Pipeline heating device and adapter thereof

Abstract

The utility model discloses a pipeline heating device and crossover couplings thereof, the device comprises a pair of crossover couplings, a heating sleeve, a heating pipeline and a heat supply device, the heating sleeve is connected with the pair of crossover couplings, the heat supply device is connected with the heating sleeve through the pair of crossover couplings, the main body is provided with a first port, a second port and a third port, the main body is provided with an accommodating cavity, the end part of the heating pipeline extends into the accommodating cavity through the third port, is connected with the first port and is connected with the working loop through the first port, and the heat supply equipment is communicated with the accommodating cavity through the second port; the heating pipeline is arranged in the heating sleeve, the two ends of the heating sleeve are connected with the pair of third ports respectively and communicate with the pair of containing cavities respectively, and a heating medium of the heat supply equipment flows into the corresponding containing cavity through any second port, then flows to the other containing cavity along the heating sleeve and flows out through the other second port, so that a heating loop is formed. And the medium in the heating pipeline is heated.

Description

Technical Field

[0001] This utility model relates to the field of open-air engineering technology, and in particular to a pipeline heating device and its conversion joint. Background Technology

[0002] With the development of open-air engineering technology, pipeline heating system technology has emerged. This technology can uniformly transfer heat to the pipeline by having a heating medium flow outside the pipeline, thereby increasing the temperature of the fluid inside the pipeline. The advantages of this technology are its ability to provide stable and uniform heating, adaptability to different media and temperature requirements, and wide applicability in various industrial scenarios. However, traditional pipeline heating devices often use electric heating elements to directly heat the pipeline, or use external heat sources to heat the pipeline to achieve the purpose of increasing the fluid temperature.

[0003] Utility model CN203271962U discloses a pipeline heater, comprising an outer tube, a middle tube, and an inner tube arranged from the outside to the inside. The two ends of the pipeline heater have the same structure. The structure of one end of the pipeline heater is as follows: a joint is provided on the wall of the middle tube, and an opening is provided on the wall of the outer tube to mate with the joint; a sealing plate is provided around the wall of the inner tube to connect with the opening of the middle tube; a cap is connected to the opening of the outer tube, and a through hole is provided on the cap to mate with the opening of the inner tube.

[0004] However, although the pipeline heater provided by the above-mentioned utility model can achieve the function of heating liquid, the pipeline heater is composed of multiple pipe rings, and the liquid in the middle pipeline is heated by the high temperature liquid in the innermost and outermost layers. The structure is complicated and cannot achieve heating of the entire pipeline, resulting in poor adaptability. Utility Model Content

[0005] Therefore, it is necessary to provide a more adaptable pipeline heating device and system to address the problem of poor adaptability of the aforementioned pipeline heaters.

[0006] This application provides a pipeline heating device, including a conversion joint and a heating sleeve, wherein:

[0007] The adapter includes a main body, on which a first port, a second port, and a third port are provided. The first port and the third port are coaxially arranged, and the second port is arranged at an angle to the axes of the first port and the third port.

[0008] The main body has a receiving cavity, and the end of the heating pipe extends into the receiving cavity through the third port and is connected to the first port. The working circuit is also connected through the first port. The heating equipment is connected to the receiving cavity through the second port.

[0009] The heating pipe is installed inside the heating sleeve. The two ends of the heating sleeve are respectively connected to a pair of the third ports and are respectively connected to a pair of the receiving cavities. The heating medium of the heating equipment flows into the corresponding receiving cavity through any of the second ports and then flows along the heating sleeve to the other receiving cavity, and flows out through the other second port to form a heating circuit.

[0010] Optionally, a first connector is provided on the first port, the first connector passes through the first port, one end of the first connector is adapted to the heating pipe, and the other end is adapted to the working circuit.

[0011] Optionally, a second connector is provided on the second port. The second connector is adapted to the heating device and connected to the second port. The heating device communicates with the receiving cavity through the second connector.

[0012] Optionally, the first port is provided with a through hole, which is adapted to the first connector and is used to pass through the first connector.

[0013] Optionally, a pair of nuts are provided along the axial direction of the first connector. Under the action of external force, the pair of nuts move towards each other along the axis of the first connector until they respectively abut against the inner and outer sides of the through hole to seal the connection between the first connector and the through hole.

[0014] Optionally, the first connector is provided with a first seal and a second seal, the first seal being disposed at the connection between the first connector and the heating pipe, and the second seal being disposed at the connection between the first connector and the working circuit.

[0015] Optionally, the second port is provided with a threaded structure, and the connector is connected to the protrusion through the threaded structure.

[0016] Optionally, fasteners are provided at both ends of the heating sleeve, and the two ends of the heating sleeve are sleeved on the third port. The fasteners are provided at the connection between the sleeve and the third port to fix the heating sleeve and the third port.

[0017] Optionally, the outer circumferential surface of the sleeve is provided with a heat insulation layer.

[0018] This application also provides a conversion connector, which includes a body, a first port, a second port and a third port, and a receiving cavity. The end of the heating pipe extends into the receiving cavity through the third port and is connected to the first port, and is connected to the working circuit through the first port. The heating equipment is connected to the receiving cavity through the second port.

[0019] The third port is used to connect the two ends of the heating sleeve so that the heating sleeve is connected to the receiving cavity. The second port is used to connect the heating equipment so that the heating medium flows into the corresponding receiving cavity through any second port, flows along the heating sleeve to another receiving cavity, and flows out through another second port to form a heating circuit.

[0020] Compared with the prior art, the technical solution provided in this application has the following advantages:

[0021] The aforementioned pipeline heating device has a conversion connector with a first port, a second port, and a third port. This multi-port design integrates the connection of the heating equipment, heating pipeline, and working circuit into a compact component. Heating is achieved by adding a conversion component to the existing pipeline, resulting in a compact structure that significantly reduces the overall space occupied by the system.

[0022] The end of the heating pipe extends directly into the receiving cavity through the third port and connects to the first port. This design avoids additional connecting components, allowing the adapter to not only serve as a connection but also as a medium flow channel between the pipe and the heating equipment, thus simplifying the device structure.

[0023] The heating sleeve directly covers the heating pipe and connects to the third port of a pair of conversion connectors at both ends. This design ensures that the heating medium forms a flow path within the heating sleeve, eliminating the need for complex additional support or guiding structures, thus making the heating device more compact. After flowing into the receiving cavity through the second port, the heating medium flows along the heating sleeve to the receiving cavity at the other end and exits through another second port. This design allows the heating medium to heat the entire length of the heating pipe evenly, avoiding problems such as localized heating or uneven temperature distribution. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a pipeline heating device provided in one embodiment of this application;

[0025] Figure 2 This is an exploded structural diagram of a pipeline heating device provided in an embodiment of this application;

[0026] Figure 3 This is a cross-sectional structural diagram of a pipeline heating device in a connected state according to an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100 - Adapter; 110 - Body; 120 - First port; 121 - First connector; 122 - Nut; 130 - Second port; 131 - Second connector; 140 - Third port; 150 - Receiving cavity;

[0029] 200 - Heating sleeve; 210 - Fastener;

[0030] 300 - Heating pipes. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] Example 1

[0038] See Figures 1 to 3 The structures at both ends of the pipeline heater in the embodiment of this utility model are the same. Only the structure of one end is shown in the figure as a representative for illustration. Figure 3 The different types of arrows indicate the flow direction of the heat source medium and the flow direction of the medium in the heating pipe 300, respectively.

[0039] One embodiment of this utility model provides a pipeline heating device, including a pair of conversion joints 100, a heating sleeve 200, a heating pipeline 300, and a heating device. The heating sleeve 200 is connected to the pair of conversion joints 100, and the heating device is connected to the heating sleeve 200 through the pair of conversion joints 100, wherein:

[0040] The adapter 100 includes a main body 110, which has a first port 120, a second port 130 and a third port 140. The main body 110 has a receiving cavity 150. The end of the heating pipe 300 extends into the receiving cavity 150 through the third port 140 and is connected to the first port 120. The working circuit is also connected through the first port 120. The heating equipment is connected to the receiving cavity 150 through the second port 130.

[0041] The heating pipe 300 is installed inside the heating sleeve 200. The two ends of the heating sleeve 200 are respectively connected to a pair of third ports 140 and are respectively connected to a pair of receiving cavities 150. The heating medium of the heating equipment flows into the corresponding receiving cavity 150 through any second port 130 and then flows along the heating sleeve 200 to the other receiving cavity 150, and flows out through the other second port 130 to form a heating circuit to heat the medium in the heating pipe 300.

[0042] It should be noted that the heating pipe 300 provided in this embodiment can be an existing pipe, that is, a conversion connector 100 is connected to an existing pipe and a heating sleeve 200 is installed to achieve heating. Alternatively, an additional heating pipe 300 can be used, which is connected to an existing pipe to heat the medium in the pipe. This application does not specifically limit the form of the heating pipe 300, as long as the heating effect is achieved. The heating equipment referred to in this embodiment can be a trolley at the construction site, and the heating medium can be any heat source medium output by the trolley (engine coolant, hydraulic oil, air compressor oil, etc.). Alternatively, an independent heating device can be used to provide the heat source medium to the heating circuit.

[0043] In this embodiment, the main body 110 of the adapter 100 has a first port 120, a second port 130 and a third port 140. This multi-port design concentrates the connection of the heating equipment, the heating pipe 300 and the working circuit on a compact component. Heating is achieved by adding an adapter to the existing pipe. The structure is compact and the overall space occupied by the system is greatly reduced.

[0044] The end of the heating pipe 300 extends directly into the receiving cavity 150 through the third port 140 and connects to the first port 120. This design avoids additional connecting parts, so that the conversion joint 100 not only serves as a connection function, but also becomes a medium flow channel between the pipe and the heating equipment, thereby simplifying the device structure.

[0045] The heating sleeve 200 directly covers the heating pipe 300 and connects to the third port 140 of a pair of conversion connectors 100 at both ends. This design ensures that the heating medium forms a flow path within the heating sleeve 200, eliminating the need for complex additional support or guiding structures, thus making the heating device more compact. After flowing into the receiving cavity 150 through the second port 130, the heating medium flows along the heating sleeve 200 to the receiving cavity 150 at the other end and flows out through another second port 130. This design allows the heating medium to heat the entire length of the heating pipe 300 uniformly, avoiding problems such as localized heating or uneven temperature.

[0046] See Figure 1 and Figure 2The pipeline heating device provided in this embodiment has a first connector 121 on the first port 120. One end of the first connector 121 is adapted to the heating pipeline 300, and the other end is adapted to the working circuit. Specifically, in this embodiment, the first connector 121 is a standard connector to accommodate heating pipelines 300 of different specifications.

[0047] The first connector 121 in the first port 120 is designed as a standard fitting, offering versatility. It can adapt to heating pipes 300 of different specifications, making the device more flexible in application and suitable for pipes of various sizes. This design reduces the device's dependence on specific pipe diameters, enabling it to be compatible with various piping systems and expanding its application range. By inserting the first connector 121 through the first port 120, one end adapts to the heating pipe 300, and the other end adapts to the target connecting pipe, making installation and replacement more convenient. When it is necessary to replace the heating pipe 300, the standard connector can be quickly disconnected and reconnected, reducing the device's maintenance time and difficulty, and improving the maintainability and operability of the equipment.

[0048] Since the first connector 121 can be adapted to pipes of different specifications, this structure enables the device to not only meet the heating needs of a single scenario, but also adapt to the heating needs of pipes of different diameters and materials in various industrial applications, further improving the applicability of the device.

[0049] See Figure 1 and Figure 2 The pipeline heating device provided in this embodiment has a second connector 131 on the second port 130. The second connector 131 is adapted to the heating device, and the heating device is connected to the receiving cavity 150 through the second connector 131. Specifically, in this embodiment, the second connector 131 is also a standard connector. In order to adapt to different heating media (engine coolant, hydraulic oil, air compressor oil), the corresponding second connector 131 can be selected and installed according to the different heating media and heating circuits.

[0050] In this embodiment, the heating device is connected to the receiving cavity 150 via the second connector 131, providing a flow path for the heating medium and allowing heat to be transferred to the pipe area to be heated. This design ensures the heating medium flows effectively into the heating cavity and contacts the outer wall of the heating pipe 300, achieving uniform and efficient heat transfer and improving heating performance. The second connector 131 is a standard joint, facilitating selection and replacement according to different heating media (such as engine coolant, hydraulic oil, and air compressor oil) and heating circuit requirements. By selecting a suitable second connector 131, the device can adapt to the chemical properties and temperature requirements of different media, ensuring the versatility and stability of the heating system. This design effectively improves the applicability of the device, enabling its use in various industrial heating environments. By matching different second connectors 131, the device can meet the pressure, temperature, and flow rate requirements of different heating circuits, further enhancing the system's compatibility and adaptability.

[0051] The design of the second connector 131, serving as a standard fitting, facilitates easier connection to the heating system. During installation, simply selecting a standard fitting compatible with the heating medium and circuit allows for quick and easy installation and sealing. This structure facilitates maintenance and replacement, reduces installation complexity and maintenance costs, and improves the ease of operation of the system.

[0052] See Figure 3 The pipeline heating device provided in this embodiment has a through hole on the first port 120, which is adapted to the first connector 121 and is used to pass through the first connector 121.

[0053] In this embodiment, the through-hole design allows the first connector 121 to pass directly through and fit into the first port 120, achieving a stable connection. This structure ensures the stability of the first connector 121 after installation, reducing the risk of loosening due to vibration or external force. Furthermore, the through-hole design simplifies the installation and disassembly process of the first connector 121. The first connector 121 can be quickly installed or removed, facilitating operation and maintenance. This design not only reduces installation complexity but also shortens device maintenance time, improving overall operational convenience. Different specifications of pipeline heating devices can be adapted to different types of first connectors 121 by setting different through-hole sizes, thereby meeting the connection requirements of different pipelines. This adaptable design broadens the application scenarios of the device, enabling it to be more widely used in various industrial heating scenarios. Through the through-hole design, the first connector 121 can precisely position the heating pipeline 300 in the appropriate position within the receiving cavity 150. Such precise control helps ensure that the contact surface between the area to be heated and the heating cavity is maximized, thereby achieving a more uniform and efficient heating effect.

[0054] See Figure 2 and Figure 3The pipeline heating device provided in this embodiment has a pair of nuts 122 on the first connector 121, which are axially arranged along the first connector 121. Under external force, the pair of nuts 122 move towards each other along the axis of the first connector 121 until they abut against the inner and outer walls of the through hole, thus sealing the connection between the first connector 121 and the through hole. The two nuts 122 abut against the inner and outer walls of the receiving cavity 150 to prevent leakage of the heating medium in the heating cavity or the medium in the pipeline, ensuring the safety and stability of the device. Because the double nut 122 design can withstand greater external forces, the device can maintain good sealing performance under different pressure environments. Whether in low-pressure or high-pressure environments, this structure can ensure that the medium in the heating cavity and pipeline will not leak, broadening the application scenarios and scope of application of the device.

[0055] The pipeline heating device provided in this embodiment has a first sealing element and a second sealing element on the first connector 121. The first sealing element is located at the connection between the first connector 121 and the heating pipeline 300, and the second sealing element is located at the connection between the first connector 121 and the working circuit. In this embodiment, a double sealing structure is achieved by axially arranging the first sealing element and the second sealing element on the first connector 121. This design provides higher sealing reliability when the first connector 121 has a through hole.

[0056] The pipeline heating device provided in this embodiment has a threaded structure inside the second port 130, and the connector is connected to the second port 130 through the threaded structure. Specifically, in this embodiment, the second port 130 has an internal threaded structure. The internal threaded structure provides a reliable mechanical connection, allowing the connector to be firmly fixed to the second port 130. Through the threaded connection, the device remains firm and not easily loosened when subjected to external pressure or vibration, improving the overall stability of the system. At the same time, the threaded connection allows for fine adjustment of the screw-in depth of the connector, which helps to precisely control the connection position to ensure sealing and connection accuracy. The precise fit between the internal threaded structure and the thread of the connector provides a good sealing effect at the connection. Since the heating device involves the flow of high-temperature media, sealing performance is particularly critical. The threaded structure can effectively prevent leakage of the heating medium between the heating chamber and the connector, ensuring that the heating medium only flows within the predetermined flow path, thereby improving heating efficiency and ensuring safety. The internal threaded connection method facilitates the installation and disassembly of the device. The connector can be installed or disassembled simply by screwing, greatly simplifying the operation steps. When replacement or repair of connectors is required, they can be quickly disconnected and reconnected, reducing maintenance time and improving the operability and ease of maintenance of the device. The internal thread structure allows the device to be adapted to different types of standard connectors. Depending on the type of heating medium or the specific requirements of the system, different specifications of connectors can be selected to match the internal thread, giving the device a certain degree of flexibility and versatility, adapting to a wider range of heating applications.

[0057] See Figure 2 The pipeline heating device provided in this embodiment includes a heating sleeve 200 comprising a sleeve and a fastener 210. The sleeve is fitted onto the third port 140, and the fastener 210 is located at the connection between the sleeve and the third port 140. Specifically, in this embodiment, the fastener 210 is a clamp, and the sleeve is quickly and securely connected to the third port 140 via the clamp.

[0058] In this embodiment, the length of the sleeve can be adjusted as needed to control the specific location of the heating element. This flexibility allows the device to adapt to different pipeline heating requirements, such as heating specific areas of the pipeline, rather than being limited to the ends. This design enhances the applicability of the device, enabling it to meet various heating scenarios. Since the length of the sleeve affects the range of the heating chamber, the flow area of ​​the heating medium also changes accordingly. This adjustable heating chamber design allows for directional heating of different parts of the pipeline, achieving localized or full-section heating effects. This flexible heating method improves energy efficiency and avoids unnecessary heat waste.

[0059] In this embodiment, the clamp fastener 210 allows for quick connection or disconnection of the sleeve to the third port 140, providing a convenient installation method. When it is necessary to replace the heating sleeve 200 or perform maintenance, the connection can be easily disconnected by loosening the clamp, without the need for complex tools or operations, greatly improving the operating efficiency and maintenance convenience of the device. The clamp provides a stable fastening effect, ensuring that the sleeve is securely fitted onto the third port 140 during use, preventing loosening due to vibration or external forces. This stable connection method maintains the stability of the heating sleeve 200 during long-term operation, ensuring the continuous and effective operation of the heating device.

[0060] As a type of flexible fastener 210, the clamp can adapt to the thermal expansion and contraction of materials within a certain range. This flexibility is particularly important for heating devices, as components may undergo thermal expansion when operating at high temperatures. The clamp maintains a tight connection during thermal expansion and contraction, preventing poor sealing or loosening due to temperature changes. Through the clamp connection, the connection between the sleeve and the third port 140 maintains good sealing, preventing leakage of the heating medium and ensuring the sealing effect of the heating chamber. The sealed heating chamber allows the heating medium to flow within it, ensuring uniform heating around the heating pipe 300, thereby improving the efficiency and safety of the heating device. The clamp fastener 210 is highly adaptable and can be applied to sleeves and third ports 140 of different specifications, achieving diverse connection methods. By adjusting the specifications or design of the clamp, it can be adapted to various heating scenarios, bringing a wider range of applications to the device.

[0061] The pipeline heating device provided in this embodiment has a first port 120 and a third port 140 arranged coaxially, and a second port 130 arranged at an angle to the axes of the first port 120 and the third port 140; an insulation layer is provided on the outer circumferential surface of the sleeve. Specifically, in this embodiment, the second port 130 is perpendicular to the axes of the first port 120 and the third port 140. By designing the first port 120 and the third port 140 to be coaxial and the second port 130 to be perpendicular to them, the size of the conversion joint 100 is further reduced, making the pipeline heating device more compact and improving its adaptability. The insulation layer covering the outer circumferential surface of the sleeve can effectively reduce heat loss from the heating chamber to the external environment, concentrating heat on the heating medium and heating pipeline 300 within the heating chamber, thereby improving the overall heating efficiency. This heat retention effect ensures that the heating medium can be maintained at a higher temperature, improving the performance of the heating device. Since the surface temperature of the sleeve may rise due to heating, the insulation layer can insulate and cool down, effectively reducing the surface temperature of the device and reducing the risk of burns to operators when touching the outer surface of the device. The thermal insulation effect of the insulation layer provides additional safety for the device, which is of great safety significance, especially in high-temperature working environments.

[0062] By reducing heat loss, the insulation layer effectively saves energy required for the operation of the heating device. This energy-saving effect reduces the energy consumption of the heating device, thereby lowering operating costs, and is particularly suitable for heating systems that operate continuously for extended periods. The insulation layer not only reduces heat loss but also mitigates the impact of external temperature fluctuations on the heating device. This insulation effect is especially important in environments with low or fluctuating temperatures, ensuring temperature stability within the heating chamber and achieving more stable heating results. Due to the addition of the insulation layer, the heating device can operate more stably and efficiently in various environments. This design expands the device's applicability, enabling it to adapt to high and low temperatures and large temperature differences, facilitating its widespread application in various industrial sectors.

[0063] Example 2

[0064] This embodiment provides a conversion connector. The conversion connector 100 includes a main body 110, which has a first port 120, a second port 130 and a third port 140. The main body 110 has a receiving cavity 150. The end of the heating pipe 300 extends into the receiving cavity 150 through the third port 140 and is connected to the first port 120. The working circuit is also connected through the first port 120. The heating equipment is connected to the receiving cavity 150 through the second port 130.

[0065] The third port 140 is used to connect the two ends of the heating sleeve 200 so that the heating sleeve 200 is connected to the receiving cavity 150. The second port 130 is used to connect the heating equipment so that the heating medium flows into the corresponding receiving cavity 150 through any second port 130 and then flows along the heating sleeve 200 to another receiving cavity 150, and flows out through another second port 130 to form a heating circuit.

[0066] The specific operating steps during use are as follows:

[0067] According to the specifications of the heating pipe 300, select a matching first connector 121 and fix it at the through hole.

[0068] Cut a sleeve of the corresponding length according to the length of the heating pipe 300, and pass the heating pipe 300 through the inner cavity of the sleeve;

[0069] Connect the connectors at both ends of the heating pipe 300 to the ports of the first connector 121 in the inner cavity of the conversion connector 100 respectively;

[0070] Restore the connection of the heating pipe 300, that is, connect the outer end of the first connector 121 to the working circuit of the corresponding heating pipe 300, i.e., the target connection pipe.

[0071] Based on the heating medium and its circuit, a matching second connector 131 is selected and installed at the second port 130, and the heating pipeline is connected to the second connector 131 to form a heating circulation circuit.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pipeline heating device, comprising a pair of conversion joints (100), a heating sleeve (200), a heating pipeline (300), and a heating device, wherein the heating sleeve (200) is connected to the pair of conversion joints (100), and the heating device is connected to the heating sleeve (200) via the pair of conversion joints (100), characterized in that, The adapter (100) includes a body (110), which has a first port (120), a second port (130) and a third port (140). The body (110) has a receiving cavity (150). The end of the heating pipe (300) extends into the receiving cavity (150) through the third port (140) and is connected to the first port (120). The working circuit is connected through the first port (120). The heating equipment is connected to the receiving cavity (150) through the second port (130). The heating pipe (300) is disposed inside the heating sleeve (200). The two ends of the heating sleeve (200) are respectively connected to a pair of third ports (140) and respectively connected to a pair of receiving cavities (150). The heating medium of the heating equipment flows into the corresponding receiving cavity (150) through any second port (130) and then flows along the heating sleeve (200) to another receiving cavity (150), and flows out through the other second port (130) to form a heating circuit to heat the medium in the heating pipe (300).

2. The pipeline heating device according to claim 1, characterized in that, The first port (120) is provided with a first connector (121), the first connector (121) passes through the first port (120), one end of the first connector (121) is adapted to the heating pipe (300), and the other end is adapted to the working circuit.

3. The pipeline heating device according to claim 2, characterized in that, A second connector (131) is connected to the second port (130). The second connector (131) is adapted to the heating device, and the heating device is connected to the receiving cavity (150) through the second connector (131).

4. The pipeline heating device according to claim 2, characterized in that, The first port (120) is provided with a through hole, which is adapted to the first connector (121) and is used to pass through the first connector (121).

5. The pipeline heating device according to claim 4, characterized in that, A pair of nuts (122) are provided along the axial direction of the first connector (121). Under the action of external force, the pair of nuts (122) move towards each other along the axis of the first connector (121) until they respectively abut against the inner and outer sides of the through hole to seal the connection between the first connector (121) and the through hole.

6. The pipeline heating device according to claim 5, characterized in that, The first connector (121) is provided with a first seal and a second seal. The first seal is located at the connection between the first connector (121) and the heating pipe (300), and the second seal is located at the connection between the first connector (121) and the working circuit.

7. The pipeline heating device according to claim 3, characterized in that, The second port (130) is provided with a threaded structure, and the second connector (131) is connected to the second port (130) through the threaded structure.

8. The pipeline heating device according to claim 1, characterized in that, The heating sleeve (200) has fasteners (210) at both ends. The two ends of the heating sleeve (200) are sleeved on the third port (140). The fasteners (210) are located at the connection between the sleeve and the third port (140) to fix the heating sleeve (200) and the third port (140).

9. The pipeline heating device according to claim 8, characterized in that, The first port (120) and the third port (140) are coaxially arranged, and the second port (130) is arranged at an angle to the axes of the first port (120) and the third port (140); The outer circumferential surface of the sleeve is provided with a heat insulation layer.

10. A conversion connector for use in the pipeline heating device according to any one of claims 1-9, characterized in that, The adapter (100) includes a body (110), which has a first port (120), a second port (130) and a third port (140). The body (110) has a receiving cavity (150). The end of the heating pipe (300) extends into the receiving cavity (150) through the third port (140) and is connected to the first port (120). The working circuit is connected through the first port (120). The heating equipment is connected to the receiving cavity (150) through the second port (130). The third port (140) is used to connect the two ends of the heating sleeve (200) so that the heating sleeve (200) is connected to the receiving cavity (150). The second port (130) is used to connect the heating equipment so that the heating medium flows into the corresponding receiving cavity (150) through any of the second ports (130) and then flows along the heating sleeve (200) to another receiving cavity (150), and flows out through another second port (130) to form a heating circuit.

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