A pipeline antifreeze heating and insulation system and method in a polar large temperature change environment

Abstract

The present invention discloses a pipeline antifreeze heating and insulation system and method in a polar large temperature change environment. The system includes: an electric heating belt, a multi-layer thermal insulation material, a waterproof layer, and an adhesive auxiliary spraying unit. By adopting a comprehensive temperature control measure combining heating and insulation, the reliability of operation in an extremely low temperature environment is ensured; in addition, on the basis of the heating and insulation function, a waterproof layer is added to effectively ensure the safe execution of ship operations in polar water environments; and by refining the design of the multi-layer thermal insulation material, the heat blocking benefit is greatly optimized from the perspective of method design, and the blocking effect is improved. In addition, by adding an adhesive auxiliary spraying unit, not only the pipeline surface is cleaned, so that the spraying quality is higher and the fitting effect between the heating belt and the pipeline surface is better, but also the use of an automated device greatly improves the spraying efficiency and quality of the adhesive on the pipeline surface, which has more significant advantages when dealing with large-scale pipeline construction operations.

Description

Technical Field

[0001] The embodiments of the present invention belong to the technical field of pipeline antifreeze, and more specifically, to a pipeline antifreeze heating and insulation system and method in a polar environment with large temperature changes. Background Art

[0002] The Arctic region experiences extremely low temperatures. When a ship surfaces during polar missions, its equipment and system piping are subject to significant temperature fluctuations, from above-freezing water temperatures to temperatures as low as -60°C or even lower. This cold shrinkage of the piping degrades the sealing performance of the connections, preventing proper sealing. Excessively low system piping temperatures can cause the internal media to freeze, rendering the system inoperable. Therefore, it is crucial to develop a heating and insulation device to protect piping from freezing in the polar region's highly variable temperature environments.

[0003] To address these technical issues, current pipeline heating and insulation methods primarily include electric heating, steam heating, and hot water heating. Electric heating is widely used due to its high efficiency, energy saving, and simple structure. Furthermore, Chinese invention patent CN218410308U discloses a device for heating and insulating gas pipelines, comprising a specialty gas pipeline equipped with a water-controlled thermostat, an air inlet pipe fixed to the left side of the pipeline, and an air outlet pipe fixed to the right side. The device for heating and insulating a gas pipeline is provided with a special gas pipeline which is located inside a water-controlled thermostat. When in use, the special gas pipeline is immersed in and wrapped by water inside the water-controlled thermostat. The gas in the special gas pipeline is heated evenly by water heat conduction, and the heating temperature of the special gas pipeline can be accurately controlled by controlling the temperature of the water-controlled thermostat. Compared with the method of heating the special gas pipeline by using insulating tin foil and a heating tape, this method can heat the gas evenly before passing through the outlet pipe to participate in the reaction, avoiding the problem of high heat at the contact position between the heating tape and the special gas pipeline, which causes uneven heating of the internal gas, and effectively reducing the risk of the special gas pipeline not being heated due to the shedding of the heating tape. In addition, Chinese invention patent CN217236066U discloses a pipeline heating and insulating device, comprising a split stainless steel A bellows, a heating resistance wire is installed on the split stainless steel bellows, a temperature sensor is installed inside the transition shell, an insulation layer is fixedly installed on the outer wall of the split stainless steel bellows, and the heating resistance wire and the temperature sensor are electrically connected to a controller. When the present invention is in use, the heating temperature of the heating resistance wire is adjusted by the temperature adjustment button, so that the nutrient solution or medicine solution is heated when it flows through the heating interval, and the heated nutrient solution or medicine solution flows into the insulation interval for insulation, and then flows out through the transition shell and is injected into the patient's body, and the temperature of the tube wall in the transition shell is measured during the outflow process, so that medical staff can clearly know the temperature of the outflowing nutrient solution or medicine solution, thereby realizing the function of heating and insulating its infusion tube, nutrition tube, nasointestinal tube or nasogastric tube.

[0004] The above patented technologies all ensure the safety of pipelines and internal material transportation to a certain extent by combining heating and insulation, but there are still the following technical problems or areas for improvement: (1) Although the electric heating wire heating method adopted by CN217236066U can achieve a heating effect, due to its structural characteristics, it is impossible to evenly cover the pipeline surface over a large area, resulting in difficulty in ensuring the uniformity of heating on the pipeline surface and low heating efficiency; (2) The design details of the insulation link are not disclosed in detail, and excellent insulation effect cannot be guaranteed. Therefore, the insulation component should be further optimized and designed; (3) Under the premise of achieving pipeline temperature control, in order to ensure the safe execution of ship operations in polar water environments, the waterproofness of the pipeline should also be considered, and the above patented technologies are all disclosed in this regard. Summary of the Invention

[0005] In response to the above-mentioned defects or improvement needs of the existing technology, the present invention provides a pipeline antifreeze heating and insulation system and method in a polar large temperature change environment. By adopting a comprehensive temperature control measure combining heating and insulation, the reliability of operation in an extremely low temperature environment is ensured; and the electric heating belt heating method is adopted, which has a large contact area and high heating efficiency compared to the electric heating wire, and has a high conversion efficiency; the heating speed is fast, meeting the rapid heating requirements; in addition, on the basis of the heating and insulation functions, a waterproof layer is added to effectively ensure the safe execution of ship operations in polar water environments; and by refining the design of multi-layer insulation materials, a three-level composite structure of the main insulation layer, the heat reflection layer and the outermost insulation layer is adopted, which greatly optimizes the heat barrier efficiency from the perspective of method design and improves the barrier effect.

[0006] In order to achieve the above object, according to a first aspect of the present invention, the system includes:

[0007] An electric heating tape evenly and fully wrapped around the outer surface of the pipeline, a multi-layer thermal insulation material attached to the outer layer of the electric heating tape and used to hinder heat exchange between the air and the pipeline surface, a waterproof layer attached to the outer layer of the multi-layer thermal insulation material, and an adhesive auxiliary spraying unit for cleaning the pipeline surface and spraying adhesive;

[0008] The multi-layer thermal insulation material includes a middle layer that performs the primary heat insulation function, an inner reflective layer that wraps around both sides of the middle layer as a secondary thermal insulation component for reflecting heat, and an outer layer that wraps around the reflective layer as a tertiary thermal insulation component; the waterproof layer comprises a waterproof resin material;

[0009] The adhesive auxiliary spraying unit includes a walking unit for driving the entire unit to move along the surface of the pipeline, a wind dust removal unit installed on the rear side of the walking unit and used to remove dust and dirt on the surface of the pipeline, and a spraying unit installed on the front side of the walking unit for spraying adhesive;

[0010] The adhesive-assisted spraying unit is used to clean dirt on the pipeline surface and quickly spray the adhesive to improve the tightness of the electric heating belt and the pipeline surface; the inner reflective layer and the outer layer are both double-sided aluminum-plated polyester films.

[0011] Preferably, the intermediate layer comprises:

[0012] Glass fiber and double-sided aluminized film;

[0013] The glass fiber and the double-sided aluminum-plated film are overlapped with each other.

[0014] Preferably, the glass fibers and the double-sided aluminum-plated films overlap in greater than two groups.

[0015] Preferably, the waterproof layer further comprises:

[0016] A stainless steel plate layer is arranged on the outer layer of the waterproof resin.

[0017] Preferably, the operating temperature range of the electric heating belt is from -100°C to 100°C.

[0018] Preferably, the walking unit includes:

[0019] A first lower annular shell, a second upper annular shell, a first rotating connection portion and a first opening and closing assembly end for rotating and opening and closing the first lower annular shell and the second upper annular shell, and a travel drive assembly provided on the inner side walls of the first lower annular shell and the second upper annular shell; a pipeline is located between the first lower annular shell and the second upper annular shell;

[0020] The travel drive assembly includes a travel transmission mechanism for transmitting kinetic energy and a pipe diameter adaptation mechanism for adapting to the pipe diameter size;

[0021] The travel transmission mechanism includes a bearing block that is radially oriented and is arranged on the inner surfaces of the first lower annular shell and the second upper annular shell, a wheel body groove arranged at the front end of the bearing block, a friction travel wheel that is rotatably connected to the wheel body groove through a transmission shaft, a first transmission pulley that is coaxially fixedly connected to the transmission shaft, a second transmission pulley and a drive motor that drive the first transmission pulley to rotate through a transmission belt.

[0022] Preferably, the pipe diameter adaptation mechanism includes:

[0023] A radial sliding groove is provided on the inner surface of the first lower annular shell and the second upper annular shell and is slidably connected to the supporting block, a pushing spring is provided between the bottom of the supporting block and the bottom surface of the supporting block, a limiting slot is provided on the supporting block, and a limiting sliding rod is fixedly connected to the first lower annular shell and the second upper annular shell and is laterally inserted into the limiting slot.

[0024] Preferably, the wind dust removal unit comprises:

[0025] A second lower annular shell, a second upper annular shell, a second rotating connection part and a second opening and closing connection part for rotating and opening and closing the second lower annular shell and the second upper annular shell, an annular air duct opened inside the second lower annular shell and the second upper annular shell, a blower fixedly connected to the inner wall of the annular air duct, and an air flow nozzle connected to the annular air duct and opened on the inner wall of the second lower annular shell and the second upper annular shell.

[0026] Preferably, the spraying unit comprises:

[0027] A third lower annular shell, a third upper annular shell, a third rotating connection part and a third opening and closing connection part for rotating and opening and closing the third lower annular shell and the third upper annular shell, a high-speed airflow channel opened inside the third lower annular shell and the third upper annular shell, a flow input pipeline connected to the high-speed airflow channel and extending outward, liquid storage cotton arranged in an annular manner inside the third lower annular shell and the third upper annular shell, an output pipe section in an annular equidistant array opened on the inner wall of the third lower annular shell and the third upper annular shell and connected to the high-speed airflow channel, an adhesive nozzle connected to the output end of the output pipe section; a siphon connected to the output pipe section and the liquid storage cotton.

[0028] According to a second aspect of the present invention, a method for using a pipeline antifreeze heating and insulation device in a polar environment with large temperature fluctuations comprises the following steps:

[0029] S100: Open the opening and closing assembly end in the adhesive auxiliary spraying unit, add the pipeline to the lower annular shell and the upper annular shell, and under the action of the pipe diameter adaptation mechanism, make the travel transmission mechanism close to the pipeline, and then start the system;

[0030] S200: driving the friction travel wheel to rotate by means of the travel transmission mechanism, thereby driving the entire device to move along the pipeline;

[0031] S300: Under the action of the blower, high-speed air flows through the annular air duct and is ejected from the air nozzle, thereby removing dirt from the pipe surface;

[0032] S400: The device moves backward as a whole, so that the cleaned pipeline passes through the spraying unit. Under its action, the air flow of the air flow input pipeline passes through the siphon pipe mouth, generating a siphon effect, sucking the adhesive in the liquid storage cotton to the adhesive nozzle and spraying it out, thereby realizing rapid spraying of the adhesive.

[0033] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0034] (1) The present invention provides a pipeline antifreeze heating and insulation system for use in polar environments with large temperature fluctuations. This system uses aluminized polyester film for insulation. This material is a film material with excellent thermal insulation properties, good corrosion resistance, and high gloss. The aluminized film can reflect solar radiation, effectively blocking the internal temperature of the pipeline, and achieving a certain thermal insulation effect. In addition, the aluminized film has good corrosion resistance and a long service life. The surface finish of the aluminized film is high, and it has a good texture and visual effect.

[0035] (2) The present invention provides a pipeline antifreeze heating and insulation system for polar large temperature change environments. By adopting a comprehensive temperature control measure combining heating and insulation, the system ensures the reliability of operation in extremely low temperature environments. The system adopts an electric heating belt heating method. Compared with electric heating wires, the system has a large contact area, high heating efficiency, and high conversion efficiency. The system has a fast heating speed and meets the demand for rapid heating. In addition, based on the heating and insulation functions, a waterproof layer is added to effectively ensure the safe execution of ship operations in polar water environments. The system adopts a three-level composite structure of a main insulation layer, a heat reflection layer, and an outermost insulation layer through a detailed design of multi-layer insulation materials. From the perspective of method design, the system greatly optimizes the heat barrier efficiency and improves the barrier effect.

[0036] (3) The present invention provides a pipeline antifreeze heating and insulation system for polar environments with large temperature changes. It adopts a pressure-resistant composite waterproof layer and uses a stainless steel plate as a secondary waterproof layer. The internal structure waterproofing and the external waterproofing are considered simultaneously, which has a better waterproof effect and ensures safe and stable operation in a high-pressure water environment.

[0037] (4) In the embodiment of the present invention, by adding an adhesive auxiliary spraying unit, not only the pipeline surface is cleaned, the spraying quality is improved, and the fitting effect between the heating belt and the pipeline surface is better, but also the use of an automated device greatly improves the spraying efficiency and quality of the adhesive on the pipeline surface, which has more significant advantages when dealing with large-scale pipeline construction operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the overall structure of a pipeline antifreeze, heating and insulation system for a polar environment with large temperature fluctuations according to an embodiment of the present invention;

[0039] Figure 2 This is a diagram showing the structure of a multi-layer thermal insulation material for a pipeline antifreeze, heating, and heat preservation system in a polar environment with large temperature fluctuations according to an embodiment of the present invention;

[0040] Figure 3 This is a diagram showing the use status of an adhesive auxiliary spraying unit of a pipeline antifreeze heating and insulation system in a polar environment with large temperature fluctuations according to an embodiment of the present invention;

[0041] Figure 4This is a schematic diagram of the overall structure of a traveling unit of a pipeline antifreeze, heating and insulation system for a polar environment with large temperature fluctuations according to an embodiment of the present invention;

[0042] Figure 5 This is a partial structural diagram of a traveling unit of a pipeline antifreeze, heating and insulation system for a polar environment with large temperature fluctuations according to an embodiment of the present invention;

[0043] Figure 6 This is a schematic structural diagram of a wind-powered dust removal unit of a pipeline antifreeze, heating, and insulation system for use in a polar environment with large temperature fluctuations according to an embodiment of the present invention;

[0044] Figure 7 This is a schematic diagram of the spray unit structure of a pipeline antifreeze heating and insulation system in a polar environment with large temperature fluctuations according to an embodiment of the present invention;

[0045] Figure 8 This is a flow chart of a method for using a pipeline antifreeze heating and insulation system in a polar environment with large temperature fluctuations according to an embodiment of the present invention;

[0046] In all the drawings, the same reference numerals represent the same technical features, specifically: 1-electric heating belt, 2-multi-layer insulation material, 4-double-sided aluminized polyester film, 5-glass fiber, 6-double-sided aluminized film, 3-waterproof layer, 7-adhesive auxiliary spraying unit, 710-walking unit, 711-first lower annular shell, 712-first upper annular shell, 713-first rotating connection part, 714-first opening and closing assembly end, 7140-bolt group, 715-walking drive assembly, 7151-walking transmission mechanism, 71511-bearing block, 71512-wheel body groove, 71513-friction walking wheel, 71514-first transmission pulley, 71515-second transmission pulley, 71516-transmission belt, 71517-drive motor , 7152-tube diameter adaptation mechanism, 71521-radial slide groove, 71522-limiting slot, 71523-limiting slide rod, 71524-pushing spring, 720-wind dust removal unit, 721-second lower annular shell, 722-second upper annular shell, 723-second rotating connection part, 724-second opening and closing connection part, 725-blower, 726-annular air duct, 727-air flow nozzle, 730-spraying unit, 731-third lower annular shell, 732-third upper annular shell, 733-third rotating connection part, 734-third opening and closing connection part, 735-high-speed air flow channel, 736-air flow input pipeline, 737-output pipe section, 738-siphon, 739-liquid storage cotton, 7310-adhesive nozzle. DETAILED DESCRIPTION

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] 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 the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0049] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0050] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0051] like Figures 1 to 3 As shown, in an embodiment of the present invention, the pipeline antifreeze heating and insulation system in a polar large temperature change environment includes:

[0052] An electric heating tape 1 uniformly and fully wrapped around the outer surface of the pipeline, a multi-layer thermal insulation material 2 attached to the outer layer of the electric heating tape 1 and used to prevent heat exchange between the air and the pipeline surface, a waterproof layer attached to the outer layer of the multi-layer thermal insulation material 2, and an adhesive auxiliary spraying unit 7 for cleaning the pipeline surface and spraying adhesive;

[0053] The multilayer thermal insulation material 2 includes a middle layer that serves as the primary heat insulation, an inner reflective layer that wraps around the inner and outer sides of the middle layer as a secondary thermal insulation component for reflecting heat, and an outer layer that wraps around the reflective layer as a tertiary thermal insulation component; the waterproof layer 3 comprises a waterproof resin material;

[0054] The adhesive auxiliary spraying unit 7 includes a walking unit 710 for driving the entire unit to move along the surface of the pipeline, a wind dust removal unit 720 installed on the rear side of the walking unit 710 and used to remove dust and dirt on the surface of the pipeline, and a spraying unit 730 installed on the front side of the walking unit 710 for spraying adhesive;

[0055] The adhesive auxiliary spraying unit 7 is used to clean dirt on the pipeline surface and quickly spray the adhesive to improve the tightness of the electric heating belt 1 and the pipeline surface.

[0056] In an embodiment of the present invention, a comprehensive temperature control measure combining heating and insulation is adopted to ensure the reliability of operation in an extremely low temperature environment; and an electric heating belt heating method is adopted, which has a large contact area and high heating efficiency compared to an electric heating wire, and has a high conversion efficiency; the heating speed is fast, meeting the demand for rapid heating; in addition, on the basis of the heating and insulation functions, a waterproof layer 3 is added to effectively ensure the safe execution of the ship's operating tasks in the polar water environment.

[0057] In addition, by refining the design of the multi-layer insulation material 2 and adopting a three-level composite structure of a main insulation layer, a heat reflection layer and an outermost insulation layer, the heat barrier efficiency is greatly optimized from the perspective of method design and the barrier effect is improved.

[0058] like Figure 2 As shown, in the embodiment of the present invention, the inner reflection layer and the outer layer are both double-sided aluminum-coated polyester films 4.

[0059] In the embodiments of the present invention, thermal insulation is achieved using aluminized polyester film, a material with excellent thermal insulation properties, good corrosion resistance, and a high gloss. The aluminized film reflects solar radiation, effectively blocking the internal temperature of the pipeline and providing excellent thermal insulation. Furthermore, the aluminized film has excellent corrosion resistance, a long service life, and a high surface finish, creating a pleasant texture and visual effect.

[0060] like Figure 2 As shown, in an embodiment of the present invention, the intermediate layer includes:

[0061] Glass fiber 5 and double-sided aluminized film 6;

[0062] The glass fiber 5 and the double-sided aluminum-plated film 6 are overlapped with each other.

[0063] like Figure 2 As shown, in the embodiment of the present invention, the glass fibers 5 and the double-sided aluminum-plated films 6 overlap in more than two groups.

[0064] like Figure 3 As shown, in this embodiment of the present invention, the waterproof layer 3 further includes:

[0065] A stainless steel plate layer is arranged on the outer layer of the waterproof resin.

[0066] In the embodiment of the present invention, a pressure-resistant composite waterproof layer is adopted, and a stainless steel plate is used as a secondary waterproof layer. The internal structure waterproofing and the external waterproofing are considered simultaneously, which has a better waterproof effect and ensures the safe and stable operation in a high-pressure water environment.

[0067] In an embodiment of the present invention, the operating temperature range of the electric heating belt is -100°C to 100°C.

[0068] like Figures 3-5 As shown, in this embodiment of the present invention, the walking unit 710 includes:

[0069] A first lower annular shell 711, a first upper annular shell 712, a first rotating connection portion 713 and a first opening and closing assembly end 714 for rotating and opening and closing the first lower annular shell 711 and the first upper annular shell 712, and a travel drive assembly 715 provided on the inner side walls of the first lower annular shell 711 and the first upper annular shell 712; a pipeline is located between the first lower annular shell 711 and the first upper annular shell 712;

[0070] The travel drive assembly 715 includes a travel transmission mechanism 7151 for transmitting kinetic energy and a pipe diameter adaptation mechanism 7152 for adapting to the pipe diameter.

[0071] The travel transmission mechanism 7151 includes a bearing block 71511 arranged radially on the inner surfaces of the first lower annular shell 711 and the first upper annular shell 712, a wheel body groove 71512 provided at the front end of the bearing block 71511, a friction travel wheel 71513 rotatably connected to the wheel body groove 71512 via a transmission shaft, a first transmission pulley 71514 coaxially fixedly connected to the transmission shaft, a second transmission pulley 71515 driving the first transmission pulley 71514 to rotate via a transmission belt 71516, and a drive motor 71517.

[0072] like Figures 3-5 As shown, in this embodiment of the present invention, the pipe diameter adaptation mechanism 7152 includes:

[0073] A radial sliding groove 71521 is provided on the inner surface of the first lower annular shell 711 and the first upper annular shell 712 and is slidingly connected to the supporting block 71511, a pushing spring 71524 is provided between the bottom of the supporting block 71511 and the bottom surface of the supporting block 71511, a limiting slot 71522 is provided on the supporting block 71511, and a limiting sliding rod 71523 is fixedly connected to the first lower annular shell 711 and the first upper annular shell 712 and is laterally inserted into the limiting slot 71522.

[0074] like Figure 6 As shown, in this embodiment of the present invention, the wind dust removal unit 720 includes:

[0075] The second lower annular shell 721, the second upper annular shell 722, the second rotating connection part 723 and the second opening and closing connection part 724 for rotating and opening and closing the second lower annular shell 721 and the second upper annular shell 722, the annular air duct 726 opened inside the second lower annular shell 721 and the second upper annular shell 722, the blower 725 fixedly connected to the inner wall of the annular air duct 726, and the air flow nozzle 727 connected to the annular air duct 726 and opened on the inner wall of the second lower annular shell 721 and the second upper annular shell 722.

[0076] like Figure 7 As shown, in this embodiment of the present invention, the spraying unit 730 includes:

[0077] a third lower annular shell 731, a third upper annular shell 732, a third rotating connection portion 733 and a third opening and closing connection portion 734 for rotatably connecting the third lower annular shell 731 and the third upper annular shell 732, a high-speed airflow channel 735 provided inside the third lower annular shell 731 and the third upper annular shell 732, a flow input pipe 736 connected to the high-speed airflow channel 735 and extending outward, a liquid storage sponge 739 annularly arranged inside the third lower annular shell 731 and the third upper annular shell 732, an annular array of output pipe sections 737 provided in equal intervals on the inner walls of the third lower annular shell 731 and the third upper annular shell 732 and connected to the high-speed airflow channel 735, and an adhesive spray head 7310 connected to the output end of the output pipe section 737;

[0078] A siphon tube 738 is connected to the output pipe section 737 and the liquid storage cotton 739.

[0079] In the embodiment of the present invention, by adding an adhesive auxiliary spraying unit, not only the pipeline surface is cleaned, the spraying quality is improved, and the fitting effect between the heating belt and the pipeline surface is better, but also the use of an automated device greatly improves the spraying efficiency and quality of the adhesive on the pipeline surface, which has more significant advantages when dealing with large-scale pipeline construction operations.

[0080] like Figure 8 As shown, in another embodiment of the present invention, a method for antifreeze, heating and heat preservation of pipelines in polar environments with large temperature changes is provided. First, the opening and closing assembly end in the adhesive auxiliary spraying unit is opened, and the pipeline is added to the lower annular shell and the upper annular shell. Under the action of the pipe diameter adaptation mechanism, the travel transmission mechanism is made to be close to the pipeline, and then the system is started; then, the friction travel wheel is driven to rotate by the travel transmission mechanism, thereby driving the entire device to move along the pipeline; then, under the action of the blower, high-speed airflow is ejected from the airflow nozzle through the annular air duct, thereby removing dirt from the pipeline surface; then, the entire device moves backward, so that the cleaned pipeline passes through the spraying unit, under the action of which, the airflow input into the pipeline passes through the siphon pipe mouth, generating a siphon effect, sucking the adhesive in the liquid storage cotton to the adhesive nozzle, and spraying it out, thereby achieving rapid spraying of the adhesive.

[0081] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above are merely preferred embodiments of the present application. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A pipeline antifreeze heating and insulation system in a polar environment with large temperature changes, characterized in that: include: An electric heating tape (1) uniformly and fully wrapped around the outer surface of the pipeline, a multi-layer thermal insulation material (2) attached to the outer layer of the electric heating tape (1) and used to hinder heat exchange between air and the pipeline surface, a waterproof layer attached to the outer layer of the multi-layer thermal insulation material (2), and an adhesive auxiliary spraying unit (7) for cleaning the pipeline surface and spraying adhesive; The multilayer heat-insulating material (2) comprises an intermediate layer that plays a primary role in heat insulation, an inner reflective layer that wraps around the inner and outer sides of the intermediate layer as a secondary heat-insulating component and is used to reflect heat, and an outer layer that wraps around the inner reflective layer as a tertiary heat-insulating component; the waterproof layer (3) comprises a waterproof resin material; The adhesive auxiliary spraying unit (7) comprises a walking unit (710) for driving the entire unit to move along the surface of the pipeline, a wind dust removal unit (720) installed at the rear side of the walking unit (710) and used to remove dust and dirt from the pipeline surface, and a spraying unit (730) installed at the front side of the walking unit (710) for spraying adhesive. The adhesive auxiliary spraying unit (7) is used to clean dirt on the pipeline surface and quickly spray the adhesive to improve the tightness of the electric heating belt (1) and the pipeline surface; The inner reflective layer and the outer layer are both double-sided aluminum-plated polyester films (4); The walking unit (710) comprises: a first lower annular shell (711), a first upper annular shell (712), a first rotating connection portion (713) and a first opening and closing assembly end (714) for rotating and opening and closing the first lower annular shell (711) and the first upper annular shell (712), and a walking drive assembly (715) provided on the inner side walls of the first lower annular shell (711) and the first upper annular shell (712); a pipeline is located between the first lower annular shell (711) and the first upper annular shell (712); the walking drive assembly (715) comprises a walking transmission mechanism (7151) for transmitting kinetic energy, a pipe diameter adaptor for adapting the pipe diameter size, and a travel transmission mechanism (7151) for transmitting kinetic energy. The travel transmission mechanism (7151) comprises a bearing block (71511) arranged radially toward the inner surfaces of the first lower annular shell (711) and the first upper annular shell (712), a wheel body groove (71512) arranged at the front end of the bearing block (71511), a friction travel wheel (71513) rotatably connected to the wheel body groove (71512) via a transmission shaft, a first transmission pulley (71514) coaxially fixedly connected to the transmission shaft, a second transmission pulley (71515) driving the first transmission pulley (71514) to rotate via a transmission belt (71516), and a drive motor (71517); The spraying unit (730) comprises: a third lower annular shell (731), a third upper annular shell (732), a third rotating connection part (733) and a third opening and closing connection part (734) for rotating and opening and closing the third lower annular shell (731) and the third upper annular shell (732), a high-speed airflow channel (735) opened inside the third lower annular shell (731) and the third upper annular shell (732), an airflow input pipeline (736) connected to the high-speed airflow channel (735) and extending outward, and an annular portion provided between the third lower annular shell (731) and the third upper annular shell (732). The liquid storage cotton (739) is arranged inside the shell (732); an annular equidistant array is provided on the inner wall of the third lower annular shell (731) and the third upper annular shell (732) and is connected to the high-speed airflow channel (735); an adhesive nozzle (7310) is connected to the output end of the output pipe section (737); a siphon tube (738) is connected to the output pipe section (737) and the liquid storage cotton (739); the airflow of the airflow input pipeline passes through the siphon tube mouth, generating a siphon effect, sucking the adhesive in the liquid storage cotton to the adhesive nozzle, and spraying it out, thereby realizing rapid spraying of the adhesive.

2. The pipeline antifreeze heating and insulation system in a polar temperature-variable environment according to claim 1, characterized in that: The intermediate layer comprises: Glass fiber (5) and double-sided aluminized film (6); The glass fiber (5) and the double-sided aluminum-plated film (6) are formed by overlapping each other.

3. The pipeline antifreeze heating and insulation system for polar high temperature fluctuations according to claim 2, characterized in that: The glass fibers (5) and the double-sided aluminum-plated films (6) are overlapped in groups greater than two.

4. The pipeline antifreeze heating and insulation system in polar temperature-variable environments according to claim 1, characterized in that: The waterproof layer (3) further comprises: A stainless steel plate layer is arranged on the outer layer of the waterproof resin.

5. A pipeline antifreeze heating and insulation system for polar environments with large temperature fluctuations according to any one of claims 1 to 4, characterized in that: The operating temperature range of the electric heating belt is from -100°C to 100°C.

6. The pipeline antifreeze heating and insulation system in polar temperature-variable environments according to claim 5, characterized in that: The pipe diameter adaptation mechanism (7152) comprises: A radial sliding groove (71521) is provided on the inner surface of the first lower annular shell (711) and the first upper annular shell (712) and is slidably connected to the supporting block (71511); a pushing spring (71524) is provided between the bottom of the supporting block (71511) and the bottom surface of the supporting block (71511); a limiting slot (71522) is provided on the supporting block (71511); and a limiting sliding rod (71523) is fixedly connected to the first lower annular shell (711) and the first upper annular shell (712) and is laterally inserted into the limiting slot (71522).

7. The pipeline antifreeze heating and insulation system in polar temperature-variable environments according to claim 6, characterized in that: The wind dust removal unit (720) comprises: A second lower annular shell (721), a second upper annular shell (722), a second rotating connection portion (723) and a second opening and closing connection portion (724) for rotating and opening and closing the second lower annular shell (721) and the second upper annular shell (722), an annular air duct (726) provided inside the second lower annular shell (721) and the second upper annular shell (722), a blower (725) fixedly connected to the inner wall of the annular air duct (726), and an air flow nozzle (727) connected to the annular air duct (726) and provided on the inner wall of the second lower annular shell (721) and the second upper annular shell (722).

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