Pipe heating device and steam heating system

Abstract

The utility model relates to pipeline heating technical field discloses a pipeline heating device and steam heating system. The pipeline heating device includes steam sleeve pipe and direction moving component, steam sleeve pipe defines heating cavity, and the pipe section of waiting for heating is worn in heating cavity, steam sleeve pipe has the inlet and outlet, the inlet is used for passing into steam to heating cavity, and the outlet is used for outputting the condensed water in heating cavity, and the both ends of steam sleeve pipe are provided with annular sealing structure, the outer surface of annular sealing structure is bonded or connected with the end of steam sleeve pipe, and the inner surface is used for resisting the outer wall surface of the pipe section of waiting for heating to seal heating cavity, the direction moving component is connected with steam sleeve pipe, and is set as drive steam sleeve pipe moves along the extension direction of the pipe section of waiting for heating. The pipeline heating device provided by the utility model can safely and efficiently thaw the frozen and blocked pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pipeline heating technology, specifically to a pipeline heating device and a steam heating system. Background Technology

[0002] In industrial production in fields such as oil, natural gas, and chemicals, pipeline freezing and blockage are common problems in cold regions during winter. In low-temperature environments, the fluid inside the pipeline gradually cools due to heat loss, eventually freezing below its freezing point. This freezing not only hinders normal fluid transport but can also lead to equipment damage, production stoppages, and even safety accidents.

[0003] Existing methods for defrosting pipelines mainly include hot water flushing, open flame heating, electric heating, and steam injection. However, hot water flushing takes a long time to take effect, and its defrosting efficiency is low when the pipeline is long or the external temperature is extremely low. Open flame heating and electric heating pose risks of fire and electric shock in flammable and explosive industrial environments. Furthermore, these methods struggle to achieve uniform heating of the pipeline, easily leading to localized overheating or undercooling. Steam injection requires injecting steam into the pipeline, which can cause steam to mix with the existing medium, resulting in medium loss. In addition, traditional defrosting operations all require manual intervention, posing significant safety risks to workers, especially when defrosting high-altitude or overhead pipelines. Utility Model Content

[0004] The purpose of this invention is to overcome some or all of the technical problems existing in the prior art and to provide a pipe heating device and a steam heating system, which can safely and efficiently thaw frozen and blocked pipes.

[0005] To achieve the above objectives, this utility model provides a pipeline heating device, which includes: A steam jacket defines a heating chamber, through which a pipe section to be heated passes. The steam jacket has an inlet and an outlet. The inlet is used to introduce steam into the heating chamber, and the outlet is used to discharge condensate from the heating chamber. Both ends of the steam jacket are provided with annular sealing structures. The outer surface of the annular sealing structure is fitted or connected to the ends of the steam jacket, and the inner surface is used to abut against the outer wall of the pipe section to be heated to seal the heating chamber. A guide moving assembly is connected to the steam jacket and configured to drive the steam jacket to move along the extension direction of the section to be heated.

[0006] In some embodiments, the guiding moving assembly includes a connecting rod assembly and a guide wheel, the connecting rod assembly being connected to the steam jacket and having an end extending out of the steam jacket and rotatably connected to the guide wheel; The rotation axis of the guide wheel is perpendicular to the extension direction of the pipe section to be heated. The guide wheel is configured to be driven to rotate against the outer wall surface of the portion of the pipe section to be heated that extends out of the steam jacket, and under the action of the rolling friction between the guide wheel and the pipe section to be heated, it drives the steam jacket to move along the extension direction of the pipe section to be heated.

[0007] In some embodiments, the connecting rod assembly includes: A fastener, which is connected to the steam sleeve, and the fastener includes a connecting portion that extends out of the steam sleeve along its axial direction. A connecting rod is provided, one end of which is rotatably connected to the connecting part, and the other end is rotatably connected to the guide wheel. The rotation axis of the connecting rod is parallel to the rotation axis of the guide wheel. An elastic element, one end of which is connected to the fixing element or the steam sleeve, and the other end of which is connected to the connecting rod. The connecting rod assembly is configured to allow the guide wheel to abut against the pipe section to be heated under the elastic force of the elastic element.

[0008] In some embodiments, the fixing member is a fixing rod, which is connected to the outer wall surface of the steam jacket and extends in a direction parallel to the axial direction of the steam jacket. The fixing rod is provided with the connecting part at both ends. In some embodiments, the pipe heating device includes at least two of the fixing members, which are evenly distributed along the circumference of the steam jacket.

[0009] In some embodiments, at least one of the guide wheels is connected to a drive member, which drives the guide wheel to rotate so as to move the steam jacket along the extension direction of the section to be heated. In some embodiments, the steam jacket includes an upper portion and a lower portion that are radially divided along the steam jacket, and the upper portion and the lower portion are detachably connected.

[0010] In some embodiments, the inlet is located at the upper part and the outlet is located at the lower part; the inlet and the outlet are respectively located near the two ends of the steam jacket along the axial direction. In some embodiments, a first protrusion protruding outward from the outer wall surface of the connection between the upper part and the lower part is provided, and a second protrusion protruding outward from the outer wall surface of the connection between the lower part and the upper part is provided, and a fastener passes through the first protrusion and the second protrusion to connect the upper part and the lower part.

[0011] In some embodiments, the steam jacket includes an inner cylinder and an outer cylinder that are interlocked and bent at their ends, forming a steam chamber between the inner cylinder and the outer cylinder. The inlet and the outlet are respectively connected to the steam chamber and are used to introduce steam into the steam chamber and to output condensate from the steam chamber. The inner cylinder defines the heating chamber, and the inner cylinder wall has a through hole connecting the steam chamber and the heating chamber. The inner cylinder is configured to allow steam in the steam chamber to be sprayed through the through hole onto the outer wall surface of the pipe section to be heated in the heating chamber, and to allow condensate in the heating chamber to be output to the steam chamber through the through hole.

[0012] In some embodiments, the inner cylinder has a plurality of through holes, which are evenly distributed on the cylinder wall of the inner cylinder; In some embodiments, the annular sealing structure is detachably connected to the pipe heating device, and the inner cylinder and the outer cylinder are integrally formed.

[0013] In some embodiments, the pipeline heating device further includes a pipeline temperature monitoring device connected to the steam jacket for monitoring the temperature of the pipe section to be heated. In some embodiments, the pipeline heating device further includes a pipeline condition monitoring device connected to the steam jacket for monitoring the icing condition of the pipeline surface of the section to be heated.

[0014] Another aspect of this utility model provides a steam heating system, the steam heating system comprising: The aforementioned pipe heating device; and A steam generating and circulating device is connected to the inlet and the outlet to transport the generated steam to the heating chamber and to collect and treat the condensate formed in the heating chamber.

[0015] Through the above technical solution, the pipeline heating device provided by this utility model heats the pipeline by releasing steam to the outer periphery of the pipe section to be heated through a steam jacket. Compared with traditional open flame heating or electric heating methods, the use of steam as the heating medium in this utility model results in more uniform heating of the pipe section and avoids the risk of fire and electric shock at the heating site. At the same time, the inlet and outlet of the steam jacket ensure that the steam introduced into the steam jacket can fully exchange heat with the pipe section to be heated, preventing condensate from accumulating in the heating chamber and causing poor heating effect of the device. The annular sealing structure at both ends of the steam jacket effectively prevents steam from overflowing into the industrial environment and condensing into condensate, which would pose a safety hazard to industrial production. It also allows the heating medium, steam water, to be recycled. The steam jacket is connected to a guide moving component, which allows the pipeline heating device to be installed on the pipe section to be heated when applied to a long pipeline. The guide moving component drives the steam jacket to move along the extension direction of the pipe section to be heated, thereby achieving heating at various points in the pipeline. The pipeline heating device provided by this utility model can achieve heating at different locations in the pipeline without removing the steam jacket from the pipe section to be heated, thereby further improving the efficiency of the pipeline heating device and making it applicable to pipe sections of different lengths to be heated. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a pipe heating device provided by this utility model; Figure 2 yes Figure 1 The diagram shows the internal structure of the pipe heating device. Figure 3 yes Figure 1 The diagram shows a cross-sectional view of the pipe heating device along line AA. Figure 4 yes Figure 1 The front view of the pipe heating device shown; Figure 5 yes Figure 4 The diagram shows a cross-sectional view of the pipe heating device along line BB. Figure 6 This is a three-dimensional structural diagram of another pipeline heating device provided by this utility model; Figure 7 yes Figure 6 The side view of the pipe heating device shown.

[0017] Explanation of reference numerals in the attached figures 1-Pipe heating device; 10-Steam jacket; 20-Annular sealing structure; 30-Guide moving assembly; 40-Camera thermal imaging module; 50-Support arm; 60-Battery controller module; 70-Pipe section to be heated; 11-Inner cylinder; 12-Outer cylinder; 10a-Steam chamber; 10b-Heating chamber; 11a-Through hole; 12a-Inlet; 12b-Outlet; 101-Upper part; 102-Lower part; 103-Fastener; 101a-First protrusion; 101b-Second protrusion; 31-Connecting rod assembly; 32-Guide wheel; 33-Drive component; 311-Fixing rod; 312-Connecting rotating rod; 313-Elastic component; 311a-Connecting part. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0019] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," and "rear," etc., indicating orientation or positional relationships, are only for the convenience of describing this disclosure 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, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] Furthermore, the terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0021] Understandably, in industrial production, especially in industries such as oil, natural gas, and chemicals in cold regions, pipeline transportation systems often encounter the problem of pipeline freezing and blockage (referred to as frost blockage). In low-temperature environments, the fluid inside the pipeline gradually cools due to heat loss, eventually freezing below its freezing point. This freezing phenomenon not only hinders normal fluid transport but can also lead to equipment damage, production stoppages, and even safety accidents. Existing thawing methods mainly include open flame heating, hot water flushing, electric heating, and steam injection. However, these traditional methods have the following drawbacks: 1. Low efficiency: Traditional methods such as open flame heating and hot water flushing require a long time to take effect, especially when the pipeline is long or the external temperature is extremely low, further reducing thawing efficiency. 2. Uneven heating: Electric heating and open flame heating are difficult to achieve uniform heating of the pipeline, easily leading to localized overheating or undercooling, resulting in unsatisfactory thawing results. 3. Safety hazards: The use of open flame heating and electric heating poses risks of fire and electric shock, especially in flammable and explosive industrial environments, where safety issues are particularly prominent. 4. Complex operation: Traditional thawing operations usually require manual intervention, which increases labor intensity. Especially in thawing operations on high-altitude or overhead pipelines, workers face higher safety risks.

[0022] To address the aforementioned technical problems, this utility model provides a pipe heating device 1, for details please refer to... Figure 1 and Figure 2 , Figure 1 This is a three-dimensional structural diagram of a pipe heating device provided by this utility model; Figure 2 yes Figure 1 The diagram shows the internal structure of the pipe heating device. The pipe heating device 1 provided by this utility model includes a steam jacket 10 and a guide moving assembly 30. The steam jacket 10 defines a heating chamber 10b, through which a pipe section 70 to be heated passes. The steam jacket 10 has an inlet 12a and an outlet 12b. The inlet 12a is used to introduce steam into the heating chamber 10b, and the outlet 12b is used to output condensate from the heating chamber 10b. Annular sealing structures 20 are provided at both ends of the steam jacket 10. The outer surface of the annular sealing structure 20 is fitted or connected to the end of the steam jacket 10, and the inner surface is used to abut against the outer wall of the pipe section 70 to seal the heating chamber 10b. The guide moving assembly 30 is connected to the steam jacket 10 and is configured to drive the steam jacket 10 to move along the extension direction of the pipe section 70 to be heated.

[0023] It is understood that the pipe heating device 1 provided by this utility model heats the pipe by releasing steam to the outer periphery of the pipe section 70 to be heated through a steam jacket 10. The heating medium of the pipe heating device 1 is steam, which, compared to traditional open flame heating or electric heating methods, allows for more uniform heating of the pipe section and avoids the risk of fire and electric shock at the heating site.

[0024] When the pipe heating device 1 provided by this utility model is applied, the steam jacket 10 is first installed on the pipe section 70 to be heated, and then steam is introduced into the heating chamber 10b from the inlet 12a, so that the steam can fully contact the pipe section 70 to be heated and exchange heat with the pipe section 70 to be heated in the heating chamber 10b. The steam that has undergone heat exchange and the condensate formed when the steam encounters the cold water are both output from the outlet 12b through the steam jacket 10. Thus, the heating of the pipe section 70 to be heated is realized, while avoiding the accumulation of condensate in the heating chamber 10b, which would result in poor heating effect of the device.

[0025] Furthermore, to ensure the efficiency of steam utilization during the heating process and improve the energy utilization rate of the pipeline heating device 1, the pipeline heating device 1 provided by this utility model has annular sealing structures 20 at both ends of the steam jacket 10. This effectively prevents steam from overflowing into the industrial environment and condensing into condensate, which could pose a safety hazard to industrial production. It also allows the heating medium, steam-water, to be recycled. The annular sealing structure 20 can be a flexible sealing structure commonly used in the art, such as a rubber ring or silicone ring. In some embodiments, the annular sealing structure 20 is detachably connected to the pipeline heating device 1, allowing the pipeline heating device 1 to replace the annular sealing structure 20 as needed (e.g., according to the outer diameter of the pipe section 70 to be heated).

[0026] Furthermore, the pipe heating device 1 provided by this utility model has a guide moving component 30 connected to the steam jacket 10. This allows the pipe heating device 1 to be installed on the pipe section 70 to be heated when applied to a long pipe, and the guide moving component 30 to drive the steam jacket 10 to move along the extension direction of the pipe section 70 to achieve heating at various points in the pipe. This configuration enables the pipe heating device 1 to adapt to pipes of various lengths. The guide moving component 30 can take various forms, such as a track-slider guide moving fit structure, a gear-rack guide moving fit structure, a screw-slider guide moving fit structure, and other conventional guide moving fit structures in the art.

[0027] Please continue reading. Figure 1 and Figure 2 And please see Figure 4 , Figure 6 and Figure 7 , Figure 4 yes Figure 1 The front view of the pipe heating device shown; Figure 6 This is a three-dimensional structural diagram of another pipeline heating device provided by this utility model; Figure 7 yes Figure 6 The diagram shows a side view of the pipe heating device. In some embodiments, the guide moving assembly 30 includes a connecting rod assembly 31 and a guide wheel 32. The connecting rod assembly 31 is connected to the steam jacket 10, and its end extends out of the steam jacket 10 and is rotatably connected to the guide wheel 32. The rotation axis of the guide wheel 32 is perpendicular to the extension direction of the pipe section 70 to be heated. The guide wheel 32 is configured to be driven to rotate against the outer wall surface of the portion of the pipe section 70 to be heated that extends out of the steam jacket 10, and under the action of rolling friction between the guide wheel 32 and the pipe section 70 to be heated, it drives the steam jacket 10 to move along the extension direction of the pipe section 70 to be heated.

[0028] It is understood that this embodiment achieves the guiding movement of the steam jacket 10 through a guide wheel structure. The connecting rod assembly 31 of the guiding movement assembly 30 can connect the guide wheel 32 and the steam jacket 10. The guide wheel 32 can rotate in contact with the part of the pipe section 70 to be heated that extends out of the steam jacket 10, and under the action of the rolling friction between the guide wheel 32 and the pipe section 70 to be heated, it drives the connecting rod assembly 31, thereby driving the steam jacket 10 to move along the extension direction of the pipe section 70 to be heated; thus achieving the guiding movement of the steam jacket 10.

[0029] In some embodiments, the connecting rod assembly 31 includes a fixing member, a connecting rotating rod 312, and an elastic member 313; the fixing member is connected to the steam jacket 10, and the fixing member includes a connecting portion 311a extending out of the steam jacket 10 along the axial direction of the steam jacket 10; one end of the connecting rotating rod 312 is rotatably connected to the connecting portion 311a, and the other end is rotatably connected to the guide wheel 32, the rotation axis of the connecting rotating rod 312 is parallel to the rotation axis of the guide wheel 32; one end of the elastic member 313 is connected to the fixing member or the steam jacket 10, and the other end is connected to the connecting rotating rod 312, and the connecting rod assembly 31 is configured such that the guide wheel 32 abuts against the section of pipe 70 to be heated under the elastic force of the elastic member 313.

[0030] It is understood that the connecting rod assembly 31 in this embodiment includes a fixing member, a connecting rotating rod 312, and an elastic member 313, enabling the pipe heating device 1 to be applicable to pipe heating of different outer diameters. Specifically, the fixing member enables the guide moving assembly 30 to be connected to the outer periphery of the steam jacket 10, and the connecting rotating rod 312 is rotatably connected to the fixing member. This allows the pipe heating device 1 to be used for heating pipes of different outer diameters, so that the guide wheel 32 connected to the connecting rotating rod 312 can be made to fit against the pipe segment 70 to be heated by adjusting the angle between the connecting rotating rod 312 and the fixing member. Furthermore, the connecting rod assembly 31 also includes an elastic member 313, with the fixing member and the connecting rotating rod 312 connected to both ends of the elastic member 313. This allows the connecting rotating rod 312 to automatically adjust to a suitable angle under the elastic force of the elastic member 313, so that the guide wheel 32 fits against the pipe segment 70 to be heated.

[0031] It is understandable that when the pipe heating device 1 is applied to pipes with different outer diameters, the size of the annular sealing structure 20 should be adjusted accordingly based on the outer diameter of the pipe section 70 to be heated. It should be noted that in this embodiment, the elastic element 313 can be, but is not limited to, a push spring, a tension spring, or other elastic components. When the elastic element 313 is a push spring, the angle between the connecting rod 312 and the fixing member can be set to an acute angle. Under the thrust of the push spring, the connecting rod 312 is adjusted to a suitable angle so that the guide wheel 32 fits against the pipe section 70 to be heated. When the elastic element 313 is a tension spring, the angle between the connecting rod 312 and the fixing member can be set to an obtuse angle. Under the elastic tension of the tension spring, the connecting rod 312 is adjusted to a suitable angle so that the guide wheel 32 fits against the pipe section 70 to be heated.

[0032] In some preferred embodiments, the fixing member is a fixing rod 311, which is connected to the outer wall surface of the steam sleeve 10 and extends in a direction parallel to the axial direction of the steam sleeve 10. The fixing rod 311 has connecting portions 311a at both ends. In some more preferred embodiments, the pipe heating device 1 includes at least two fixing members, which are evenly distributed along the circumference of the steam sleeve 10.

[0033] It is understood that this embodiment makes the force exerted by the guide moving device on the steam jacket 10 more balanced; the steam jacket 10 can move more stably on the pipe to be heated, and the steam jacket 10 is less likely to jam, disengage or slide circumferentially during the movement. Figure 1A specific embodiment is shown in which the pipe heating device 1 includes four fixing rods 311. The four fixing rods 311 are evenly arranged circumferentially along the steam jacket 10. The extension direction of the fixing rods 311 is parallel to the axial direction of the steam jacket 10, and both ends of the fixing rods 311 extend out of the steam jacket 10. Each fixing rod 311 has a connecting rotating rod 312 hinged to both ends. Each connecting rotating rod 312 and its corresponding fixing rod 311 are also connected by an elastic member 313. The end of each connecting rotating rod 312 facing away from the fixing rod 311 is also rotatably connected to a guide wheel 32.

[0034] In some embodiments, at least one of the guide wheels 32 is connected to a drive member 33, which drives the guide wheel 32 to rotate, thereby moving the steam jacket 10 along the extension direction of the section 70 to be heated. Other guide wheels 32 rotate under the rolling friction between the guide wheels 32 and the section 70 to be heated, serving as guides for the movement of the steam jacket 10. In some more preferred embodiments, at least two guide wheels 32 are connected to a drive member 33 (e.g., ...). Figure 7 (as shown); More preferably, each guide wheel 32 is connected to a drive component 33, thereby making the movement of the steam jacket 10 more stable.

[0035] Please see Figure 5 , Figure 5 yes Figure 4 The diagram shows a cross-sectional view of the pipe heating device along line BB. In some embodiments, the steam jacket 10 includes an upper portion 101 and a lower portion 102, which are radially divided along the steam jacket 10 and are detachably connected. This arrangement allows the steam jacket 10 to be disassembled and installed on different pipe sections 70 to be heated, enabling the thawing of frozen or blocked pipes. It is understood that the upper portion 101 and the lower portion 102 should be sealed together to prevent steam from leaking out from the connection gap between the upper portion 101 and the lower portion 102.

[0036] In some embodiments, the inlet 12a is located on the upper part 101, and the outlet 12b is located on the lower part 102. The inlet 12a and the outlet 12b are respectively located close to the two ends of the steam jacket 10 along the axial direction. This allows the steam entering the steam jacket 10 from the inlet 12a to fully fill the interior of the steam jacket 10 and fully exchange heat with the section of pipe 70 to be heated inside the steam jacket 10, thus ensuring the heating effect of the pipeline heating device 1.

[0037] In some embodiments, a first protrusion 101a protruding outward from the outer wall of the connection between the upper part 101 and the lower part 102 is provided, and a second protrusion 101b protruding outward from the outer wall of the connection between the lower part 102 and the upper part 101 is provided, and a fastener 103 passes through the first protrusion 101a and the second protrusion 101b to connect the upper part 101 and the lower part 102; in this embodiment, the first protrusion 101a, the second protrusion 101b and the fastener 103 realize a detachable connection between the upper part 101 and the lower part 102.

[0038] Please continue reading. Figure 5 And please refer to Figure 3 , Figure 3 yes Figure 1 The diagram shows a cross-sectional view of the pipe heating device along line AA. In some embodiments, the steam jacket 10 includes an inner cylinder 11 and an outer cylinder 12 that are interlocked and bent at their ends. A steam chamber 10a is formed between the inner cylinder 11 and the outer cylinder 12. The inlet 12a and the outlet 12b are respectively connected to the steam chamber 10a and are used to introduce steam into the steam chamber 10a and to output condensate from the steam chamber 10a. The inner cylinder 11 defines the heating chamber 10b. The inner cylinder 11 has a through hole 11a on its wall that connects the steam chamber 10a and the heating chamber 10b. The inner cylinder 11 is configured to allow steam in the steam chamber 10a to be sprayed through the through hole 11a to the outer wall of the pipe section 70 to be heated in the heating chamber 10b, and to allow condensate in the heating chamber 10b to be output to the steam chamber 10a through the through hole 11a.

[0039] Understandably, in this embodiment, the inner cylinder 11 and outer cylinder 12 form two annular cylindrical heating chambers 10b and steam chambers 10a around the outer periphery of the tube section 70 to be heated. Steam entering from the inlet 12a first enters the steam chamber 10a and quickly fills it. Then, it enters the heating chamber 10b through the through hole 11a on the inner cylinder 11 and is ejected to the periphery of the tube section 70 to be heated. This arrangement avoids the steam from being directly ejected from the inlet 12a to the surface of the tube section 70 to be heated and then flowing out from the outlet 12b, which would result in poor heating effect of the steam on the tube section 70 to be heated, uneven heating of the tube section 70 to be heated, and energy waste caused by a large amount of steam flowing out from the outlet 12b without sufficient heat exchange with the tube section 70 to be heated.

[0040] In some embodiments, the inner cylinder 11 has a plurality of through holes 11a, which are evenly distributed on the cylinder wall of the inner cylinder 11; this arrangement further improves the heating uniformity of the pipe section heating device for the pipe section 70 to be heated. In some embodiments, the inner cylinder 11 and the outer cylinder 12 are integrally formed; thereby further ensuring the sealing performance of the steam jacket 10.

[0041] In some embodiments, the pipe heating device 1 further includes a pipe temperature monitoring device connected to the steam jacket 10 for monitoring the temperature of the pipe section 70 to be heated; in some embodiments, the pipe heating device 1 further includes a pipe condition monitoring device connected to the steam jacket 10 for monitoring the icing condition of the pipe surface of the pipe section 70 to be heated.

[0042] The pipeline temperature monitoring device can be an infrared sensor, and the pipeline status monitoring device can be a camera. In some embodiments, the infrared sensor can detect real-time temperature changes in the pipeline. When it detects that the local temperature of the pipeline is too low or that ice has formed, it automatically triggers the pipeline heating device 1 to introduce steam into the steam jacket 10 to heat the pipeline, ensuring the accuracy of heating. The camera is used to monitor the surface condition of the pipe section 70 to be heated in real time and transmits the pipeline image to the control center through a remote control system, helping operators to promptly identify iced areas and make adjustments.

[0043] The control system is connected to the drive unit 33, infrared sensors, and camera via wireless communication. Operators can control it remotely via devices such as smartphones or computers, enabling functions such as remote start / stop, motor speed adjustment, and heating intensity control. Furthermore, the control system has an automatic adjustment function, automatically adjusting the steam flow rate based on the pipe temperature feedback from the sensors to ensure heating effectiveness. The infrared sensors monitor the pipe temperature in real time; when localized low temperatures or icing are detected, the system will issue an alarm and optimize operation by adjusting the steam flow rate and drive motor speed.

[0044] In some implementations, such as Figure 6 and Figure 7 The pipeline temperature monitoring device and / or pipeline condition monitoring device can be connected to the upper part 101 of the steam jacket 10 via a support arm 50. In some preferred embodiments, the support arm 50 of the pipeline condition monitoring device has a foldable structure and is configured to allow adjustment of the angle of the pipeline condition monitoring device as needed, ensuring that the monitoring range covers the target area of ​​the pipeline to be heated. When the device is moved or stopped, the support arm 50 can be folded and stored to protect the pipeline condition monitoring device from damage.

[0045] This utility model also provides a steam heating system, which includes the above-mentioned pipe heating device 1 and steam generating and circulating device. The steam generating and circulating device is connected to the inlet 12a and the outlet 12b to transport the steam that generates steam to the heating chamber 10b and to collect and process the condensate formed in the heating chamber 10b.

[0046] Those skilled in the art should understand that the above embodiments or implementation methods are for illustrative purposes only and are not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or implementation methods or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in the different embodiments or implementation methods can be combined in any way.

Claims

1. A pipe heating device, characterized in that, The pipeline heating device (1) includes: A steam jacket (10) defines a heating chamber (10b), through which a pipe section to be heated passes. The steam jacket (10) has an inlet (12a) and an outlet (12b). The inlet (12a) is used to introduce steam into the heating chamber (10b), and the outlet (12b) is used to discharge condensate from the heating chamber (10b). Both ends of the steam jacket (10) are provided with annular sealing structures (20). The outer surface of the annular sealing structure (20) is fitted or connected to the end of the steam jacket (10), and its inner surface is used to abut against the outer wall of the pipe section to be heated to seal the heating chamber (10b). A guide moving assembly (30) is connected to the steam jacket (10) and is configured to drive the steam jacket (10) to move along the extension direction of the section to be heated.

2. The pipeline heating device according to claim 1, characterized in that, The guide moving assembly (30) includes a connecting rod group (31) and a guide wheel (32). The connecting rod group (31) is connected to the steam sleeve (10), and its end extends out of the steam sleeve (10) and is rotatably connected to the guide wheel (32). The rotation axis of the guide wheel (32) is perpendicular to the extension direction of the pipe section to be heated. The guide wheel (32) is configured to be driven to rotate against the outer wall surface of the portion of the pipe section to be heated that extends out of the steam jacket (10), and under the action of the rolling friction between the guide wheel (32) and the pipe section to be heated, the steam jacket (10) moves along the extension direction of the pipe section to be heated.

3. The pipeline heating device according to claim 2, characterized in that, The connecting rod assembly (31) includes: A fastener is connected to the steam sleeve (10), and the fastener includes a connecting portion (311a) extending axially from the steam sleeve (10). A connecting rod (312) is provided, one end of which is rotatably connected to the connecting part (311a), and the other end is rotatably connected to the guide wheel (32). The rotation axis of the connecting rod (312) is parallel to the rotation axis of the guide wheel (32). An elastic element (313) is provided, with one end connected to the fixing element or the steam sleeve (10) and the other end connected to the connecting rod (312). The connecting rod assembly (31) is configured to allow the guide wheel (32) to abut against the section of pipe to be heated under the elastic force of the elastic element (313).

4. The pipeline heating device according to claim 3, characterized in that, The fixing member is a fixing rod (311), which is connected to the outer wall of the steam sleeve (10) and extends in a direction parallel to the axial direction of the steam sleeve (10). The fixing rod (311) has connecting portions (311a) at both ends; and / or The pipeline heating device (1) includes at least two fixing members, which are evenly distributed along the circumference of the steam jacket (10).

5. The pipeline heating device according to claim 2, characterized in that, At least one of the guide wheels (32) is connected to a drive member (33), the drive member (33) being used to drive the guide wheel (32) to rotate so as to move the steam jacket (10) along the extension direction of the section to be heated; and / or The steam jacket (10) includes an upper part (101) and a lower part (102) that are radially divided along the steam jacket (10), and the upper part (101) and the lower part (102) are detachably connected.

6. The pipeline heating device according to claim 5, characterized in that, The inlet (12a) is located on the upper part (101), and the outlet (12b) is located on the lower part (102); the inlet (12a) and the outlet (12b) are respectively located near the two ends of the steam jacket (10) along the axial direction; and / or The outer wall surface at the connection between the upper part (101) and the lower part (102) is provided with a first protrusion (101a) protruding outward of the steam sleeve (10), and the outer wall surface at the connection between the lower part (102) and the upper part (101) is provided with a second protrusion (101b) protruding outward of the steam sleeve (10). The fastener (103) passes through the first protrusion (101a) and the second protrusion (101b) to connect the upper part (101) and the lower part (102).

7. The pipe heating device according to any one of claims 1-6, characterized in that, The steam jacket (10) includes an inner cylinder (11) and an outer cylinder (12) that are interlocked and bent at their ends. A steam chamber (10a) is formed between the inner cylinder (11) and the outer cylinder (12). The inlet (12a) and the outlet (12b) are respectively connected to the steam chamber (10a) and are used to introduce steam into the steam chamber (10a) and to output condensate from the steam chamber (10a). The inner cylinder (11) defines the heating chamber (10b). The inner cylinder (11) has a through hole (11a) on its wall that connects the steam chamber (10a) and the heating chamber (10b). The inner cylinder (11) is configured to allow steam in the steam chamber (10a) to be injected through the through hole (11a) onto the outer wall of the section to be heated in the heating chamber (10b), and to allow condensate in the heating chamber (10b) to be output to the steam chamber (10a) through the through hole (11a).

8. The pipeline heating device according to claim 7, characterized in that, The inner cylinder (11) has a plurality of through holes (11a), which are evenly distributed on the cylinder wall of the inner cylinder (11); and / or The annular sealing structure (20) is detachably connected to the pipeline heating device (1), and the inner cylinder (11) and the outer cylinder (12) are integrally formed.

9. The pipe heating device according to any one of claims 1-6, characterized in that, The pipeline heating device (1) further includes a pipeline temperature monitoring device, which is connected to the steam jacket (10) and used to monitor the temperature of the pipe section to be heated; and / or The pipeline heating device (1) also includes a pipeline condition monitoring device, which is connected to the steam jacket (10) and is used to monitor the icing condition of the pipeline surface of the section to be heated.

10. A steam heating system, characterized in that, The steam heating system includes: The pipe heating device (1) according to any one of claims 1-9; and A steam generating and circulating device is connected to the inlet (12a) and the outlet (12b) to transport the steam generated to the heating chamber (10b) and to collect and process the condensate formed in the heating chamber (10b).

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