Magnetic heat cleaning nacelle and cleaning method of water delivery pipeline

Abstract

The invention relates to a magnetic-heat attachment cleaning nacelle and a cleaning method of a water conveying pipeline, and the nacelle comprises a nacelle body; the nacelle valve is arranged on the first side of the nacelle body, the magnetic heat cleaning nacelle and the power line shaft are arranged in the nacelle body, one end of the power line shaft is connected with the power supply access node, and the other end of the power line shaft is connected with an electromagnetic coil of the magnetic heat cleaning nacelle; the control assembly is connected with the power line shaft and used for opening the nacelle valve when receiving an attachment cleaning starting instruction and controlling the power line shaft to rotate in the first direction so that the magnetic heat attachment cleaning nacelle can be located at the target position of a to-be-cleaned pipeline. And when an attachment cleaning ending instruction is received, the power line shaft is controlled to rotate in the second direction, the magnetic heat attachment cleaning nacelle is retracted to the nacelle body, and the nacelle valve is closed. Therefore, the problems of high reconstruction cost, engineering risk and the like of the water conveying pipeline in the cleaning process are solved, and the operability and the stability of the magnetic heat cleaning nacelle and the water conveying pipeline during working and maintenance are improved.

Description

Technical Field

[0001] The invention relates to the technical field of water supply system pollution prevention and treatment, and in particular to a method for cleaning a short nacelle and a water supply pipeline by using magnetic thermal cleaning. Background Art

[0002] The invasion and biofouling of swamp clams (also known as freshwater mussels and golden mussels) often occur in artificial water-related facilities such as water transfer / adjustment projects and power station technical water supply systems. They are widely invaded because the conditions of the water-related facilities are suitable and natural enemies are scarce. All facilities associated with water bodies where swamp clams are planted are at risk of fouling. The fouling problem of swamp clams is particularly serious in water pipelines. In mild cases, it will increase the roughness of the pipe wall, reduce water transfer efficiency, and affect water flow capacity; block the functions of filters, coolers, water pumps, gates and other structures, affecting production; in severe cases, it will increase chemical substances such as ammonia and nitrogen, produce irritating gases and other saprophytes after death and decay, develop a large number of molds, increase pathogenic bacteria, and endanger water quality safety. A large number of biological and ecological studies have been carried out on freshwater mussels at home and abroad, and on this basis, relevant prevention and control measures have been proposed, including various mechanical, physical, chemical and biological means, mainly filtration, coating, high-temperature water flow flushing, manual scraping and sedimentation. The limitation of existing prevention and control methods is that only small-scale experimental research has been carried out, and there is a lack of pilot tests and prevention and control effect evaluation from the perspective of engineering application. In actual application, there is a lack of effective attempts due to the difficulty of modifying water supply project pipelines.

[0003] In the related technology, the clam cleaning technology based on the magnetothermal method uses an electromagnetic coil as a magnetic field source to generate the required high-frequency strong magnetic field. The magnetothermal cleaning equipment heats superparamagnetic nanoparticles (SMNP) through a strong alternating magnetic field to generate heat, kill drifting and tube wall attachments, such as clams, algae, bacteria, etc., or force those that are already attached to fall off.

[0004] However, in order to maintain water delivery efficiency, it is difficult to deploy magnetic thermal cleaning equipment in water pipelines for a long time. The magnetic thermal method requires high-power power supply, which poses a safety hazard. Moreover, when the magnetic thermal method is applied to metal pipelines, a magnetic field source needs to be placed in the pipeline, which hinders the water flow. It is advisable to move the magnetic field source out of the pipeline after the cleaning operation is completed, but directly removing the magnetic field source from the pipeline requires suspending pipeline transportation. The magnetic field source requires a high-power power supply, which is usually achieved by external power supply. Supplying power to the magnetic field source in the pipeline is relatively complicated and needs to be solved urgently. Summary of the invention

[0005] The present invention provides a method for cleaning a nacelle and a water pipeline by means of magnetic thermal cleaning, so as to solve the problems of high cost and potential engineering risks of large-scale transformation of the water pipeline during the cleaning process, and to improve the operability and stability of the magnetic thermal cleaning equipment and the water pipeline during operation and maintenance.

[0006] A first aspect of the present invention provides a magnetic thermal cleaning nacelle, comprising: a nacelle body; a nacelle valve arranged on a first side of the nacelle body, the nacelle valve being connected to a pipe to be cleaned; a magnetic thermal cleaning device and a power spool arranged in the nacelle body, one end of the power spool being connected to a power access node, and the other end of the power spool being connected to an electromagnetic coil of the magnetic thermal cleaning device; a control component, the control component being connected to the power spool and being used to open the nacelle valve upon receiving an instruction to start cleaning the attachments, and to control the power spool to rotate in a first direction, so that the magnetic thermal cleaning device is at a target position of the pipe to be cleaned for cleaning the attachments; and upon receiving an instruction to end cleaning the attachments, controlling the power spool to rotate in a second direction, retracting the magnetic thermal cleaning device into the nacelle body, and closing the nacelle valve.

[0007] Furthermore, in some embodiments, the magnetic thermal cleaning nacelle further includes: a nacelle inspection port disposed on the second side of the nacelle body, the nacelle inspection port being used for repairing the magnetic thermal cleaning nacelle; and an inspection port cover for sealing the nacelle inspection port.

[0008] Furthermore, in some embodiments, the magnetic thermal cleaning nacelle further includes: a lighting component disposed at the nacelle inspection port, for providing lighting during inspection; and a warning component disposed corresponding to the nacelle inspection port, for providing safety reminders.

[0009] Furthermore, in some embodiments, the material of the inspection port cover is stainless steel or fiberglass.

[0010] Furthermore, in some embodiments, the size of the nacelle inspection port is determined by the size of the pipe to be cleaned and the size of the nacelle body.

[0011] Furthermore, in some embodiments, the magnetic thermal cleaning nacelle further includes: a power supply component, which is respectively connected to the control component and the power access node, and is used to supply power to the magnetic thermal cleaning device when receiving an instruction to start cleaning the attachments.

[0012] Furthermore, in some embodiments, when the diameter of the pipeline to be cleaned is less than or equal to a preset size, the nacelle valve adopts a stop valve, and when the diameter of the pipeline to be cleaned is greater than the preset size, the nacelle valve adopts a gate valve or a butterfly valve.

[0013] Furthermore, in some embodiments, the inner wall of the nacelle body may be coated with a magnetocaloric coating.

[0014] The magnetic thermal cleaning nacelle provided by the embodiment of the present invention combines the magnetic thermal cleaning nacelle with the pipe of the water supply system, heats the superparamagnetic nanoparticles, generates heat, kills the drifting and pipe wall attachments, or forces the attached ones to fall off. The problem of high cost of water supply pipeline modification and high difficulty of maintenance and repair during the cleaning process is solved, the cost of inspection and maintenance is reduced, and the operability and stability are improved.

[0015] A second aspect of the present invention provides a method for cleaning a water pipeline, using a magnetic thermal cleaning nacelle as described in any one of the above items, wherein the method includes: determining whether an instruction to start cleaning the attachments has been received; if an instruction to start cleaning the attachments has been received, opening the nacelle valve, and controlling the power cord shaft to rotate in a first direction, so that the magnetic thermal cleaning device is at the target position of the pipeline to be cleaned to clean the attachments.

[0016] Furthermore, in some embodiments, the water pipeline cleaning method further includes: determining whether an instruction to end cleaning of the attachments has been received; if an instruction to end cleaning of the attachments has been received, controlling the power cord shaft to rotate in a second direction, retracting the magnetic thermal cleaning device into the nacelle body, and closing the nacelle valve.

[0017] Therefore, the magnetic thermal cleaning nacelle according to the embodiment of the present invention has the following beneficial effects:

[0018] (1) Efficient fouling prevention: The embodiment of the present invention connects a short cabin containing a magnetic thermal cleaning device to a severely fouled pipeline, and uses the local magnetic thermal effect to quickly and effectively kill the attachments in the flow or wall of the water pipeline. Compared with directly laying out a magnetic thermal killing device in the pipeline, the short cabin containing the magnetic thermal cleaning device takes less time to transform, can kill the high-density attached fouling area in time, is more efficient, and can significantly reduce the attachment and fouling problems of attachments at the bends of the pipeline.

[0019] (2) Environmentally friendly: The embodiment of the present invention uses a small nacelle to transform the pipeline interface, which does not require large-scale pipeline transformation or installation of killing devices, reduces material loss, and does not use harmful chemicals. It has good environmental protection characteristics and meets modern ecological protection requirements. At the same time, the magnetic thermal removal process has no side effects on water bodies and pipeline materials, and will not cause damage to the water supply system or the surrounding environment.

[0020] (3) Resource conservation: Compared with existing large-scale fouling prevention methods, the design of non-stop maintenance avoids the waste of resources caused by shutdown maintenance and cleaning, reduces the cost of prevention and control of attachments, and can reduce the initial investment and subsequent maintenance costs in large-scale applications.

[0021] (4) Stability and durability: Since the external power supply of the nacelle can operate stably for a long time, the alternating magnetic field generated by the electromagnetic coil can be adjusted at any time, and has good stability and durability. The present invention is suitable for long-term online operation and can effectively prevent the attachment of attachments again, thereby extending the cleaning cycle of the pipeline system and reducing the cleaning frequency.

[0022] (5) Wide applicability and flexibility: The nacelle structure of the present invention is simple in design and can be flexibly customized according to the specific pipeline size, and is adaptable to a variety of water delivery systems and water conservancy project pipelines.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0025] Figure 1 It is a schematic diagram of the structure of a magnetic thermal cleaning nacelle provided according to an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure of a nacelle body provided according to an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of a working structure when performing a cleaning operation according to an embodiment of the present invention;

[0028] Figure 4 The present invention is a flow chart of a method for cleaning a water pipeline according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The following describes the cleaning method of the magnetic thermal cleaning nacelle and water pipeline of the embodiment of the present invention with reference to the accompanying drawings. In view of the problems of high cost and potential engineering risks of large-scale transformation of water pipelines during the cleaning process mentioned in the above background technology, the present invention provides a magnetic thermal cleaning nacelle, which combines the magnetic thermal cleaning nacelle with the pipeline of the water system to replace the existing water main or branch pipe, heats the superparamagnetic nanoparticles, generates heat, kills the drifting and pipe wall attachments, or forces the attached ones to fall off. The nacelle structure is easy to inspect and maintain, with relatively low cost, and is suitable for large-scale application in water pipeline systems. At the same time, the nacelle structure is used as an external component of the magnetic thermal cleaning device to accommodate a magnetic field source, connect the magnetic field source and an external high-power power supply and a control unit to achieve the purpose of killing and monitoring attachments in the water pipeline. It solves the problems of high cost and potential engineering risks of large-scale transformation of water pipelines during the cleaning process.

[0031] Specifically, Figure 1 This is a schematic diagram of the structure of the magnetic thermal cleaning nacelle provided in an embodiment of the present invention.

[0032] like Figure 1 As shown, the magnetic thermal cleaning nacelle 10 includes: a nacelle body 100, a nacelle valve 200 arranged on a first side of the nacelle body, a magnetic thermal cleaning device 300 and a power supply spool 400 and a control component 500 arranged in the nacelle body 100.

[0033] Among them, the nacelle valve 200 is connected to the pipeline to be cleaned, and the magnetic thermal cleaning device 300 and the power spool 400 are arranged in the nacelle body 100. One end of the power spool 400 is connected to the power access node, and the other end of the power spool 400 is connected to the electromagnetic coil of the magnetic thermal cleaning device 300. The control component 500 is connected to the power spool 400, and is used to open the nacelle valve 200 when receiving the instruction to start cleaning the attachment, and control the power spool 400 to rotate in the first direction, so that the magnetic thermal cleaning device 300 is at the target position of the pipeline to be cleaned to clean the attachment. When receiving the instruction to end cleaning the attachment, the power spool 400 is controlled to rotate in the second direction, the magnetic thermal cleaning device 300 is retracted to the nacelle body 100, and the nacelle valve 200 is closed.

[0034] Specifically, the nacelle body 100 accommodates the magnetic thermal cleaning device 300 and the power spool 400. The power cord is added with steel wire and can withstand a certain tension. One end is connected to an external power supply (which needs to be sealed and insulated), and the other end is connected to the power spool 400 via the spool.

[0035] Furthermore, the structure of the nacelle body 100 of the embodiment of the present invention can be as follows: Figure 2 As shown, a vertical or inclined nacelle is added to the water pipeline, where: Figure 2 (a) is a vertical nacelle. Figure 2The middle (b) is an inclined nacelle. The nacelle size and material are customized according to the modified pipeline to ensure that it matches the original pipeline and is well sealed to ensure that there is no leakage or seepage during the pipeline modification and installation.

[0036] Furthermore, in some embodiments, when the diameter of the pipeline to be cleaned is less than or equal to a preset size, the nacelle valve 200 adopts a stop valve, and when the diameter of the pipeline to be cleaned is greater than the preset size, the nacelle valve 200 adopts a gate valve or a butterfly valve.

[0037] For example, when the pipe diameter is not more than 50mm, a stop valve is used, and when the pipe diameter is more than 50mm, a gate valve or butterfly valve is used. The materials of the valve body and valve cover should be selected according to the use conditions and manufacturing requirements. For example, alloy steel valves can use chrome-molybdenum-vanadium cast steel or chrome-molybdenum-vanadium steel; nuts and bolts should be selected according to the use pressure and temperature. Alloy steel valves can use chrome-molybdenum-vanadium steel and chrome-molybdenum steel.

[0038] In this way, it can be ensured that no leakage or water seepage will occur during the pipeline modification and installation, thereby improving the reliability and stability of the nacelle valve operation.

[0039] Furthermore, the control components 500 send control signals to control various parts of the nacelle. The type of the control component 500 can be selected according to the engineering characteristics. For example, a microprogram control unit reads and sends control signals by a microprogram, and the microprogram is executed by a simple digital path (microcomputer) of a microsequencer. Another example is a hardware control unit, which directly sends control signals by a digital path.

[0040] Furthermore, in some embodiments, the magnetic thermal cleaning nacelle 10 further comprises: a nacelle inspection port, wherein the nacelle inspection port is arranged on the second side of the nacelle body, has an inspection port cover plate for sealing the nacelle inspection port, and the nacelle inspection port is used for repairing the magnetic thermal cleaning nacelle.

[0041] Furthermore, in some embodiments, the magnetic thermal cleaning nacelle 10 further includes: a lighting component and a warning component. The lighting component is arranged at the nacelle inspection port to provide lighting during inspection; the warning component is arranged at a position corresponding to the nacelle inspection port to provide safety reminders.

[0042] Furthermore, in some embodiments, the material of the inspection port cover is stainless steel or fiberglass.

[0043] Further, in some embodiments, the size of the nacelle inspection port is determined by the size of the pipe to be cleaned and the size of the nacelle body.

[0044] For example, the inspection port should be equipped with lighting equipment to provide sufficient light for maintenance personnel to operate. Guardrails or warning signs should be set up around the inspection port to remind people to pay attention to safety; keep it clean to avoid accumulation of debris and obstruction of operation. The inspection port is set on the other side of the nacelle. Generally, the inspection port cover should be made of non-slip, corrosion-resistant and wear-resistant materials, such as stainless steel, fiberglass, etc.; the inspection port cover should have good sealing performance to prevent sewage overflow and odor diffusion; the inspection port cover should be detachable for easy inspection and maintenance. The size of the inspection port is reasonably designed according to the size of the pipeline and the nacelle, and is generally 100mm wider than the edge of the nacelle outer contour.

[0045] Furthermore, in some embodiments, the magnetic thermal cleaning nacelle 10 further includes: a power supply component, wherein the power supply component is respectively connected to the control component and the power access node, and is used to supply power to the magnetic thermal cleaning device 300 when receiving an instruction to start cleaning the attachments.

[0046] It should be understood that if the battery used as the external power source does not provide good power, the quality of the output current cannot be guaranteed.

[0047] Specifically, the power supply used for magnetic thermal cleaning equipment must be able to provide 10W~10KW of power and ensure high-frequency output. The influencing factors include the quality, stability, output resistance, temperature coefficient, etc. of the supply battery. It must have high efficiency, high precision and high stability.

[0048] Further, the working structure diagram of the embodiment of the present invention when performing a cleaning operation can be as follows: Figure 3 As shown, Figure 3 (a) is a schematic diagram of the working status during cleaning operation. Figure 3 (b) is a schematic diagram of the working state when the cleaning operation is not performed. Figure 3 As shown in (a), when performing the cleaning operation, the nacelle valve 200 leading to the pipeline is opened, the magnetic thermal cleaning device 300 is released, and the position of the magnetic thermal cleaning device 300 in the pipeline is controlled by controlling the rotation of the power line shaft 400, so that the magnetic thermal cleaning device 300 slides over the inner wall of the pipeline. After the cleaning is completed, Figure 3 As shown in (b), the magnetic thermal cleaning device 300 is retracted into the nacelle, and the nacelle valve 200 leading to the pipeline is closed. In the non-pigging operation state, when the nacelle valve is closed, there is no water flow and lack of nutrients in the nacelle, which is not conducive to the growth of attachments, and the attachment risk is low.

[0049] In addition, as a possible implementation method, in some embodiments, the inner wall of the nacelle hull 100 is coated with a magnetic thermal coating, and the attachments in the nacelle can also be cleaned through the inspection port. Cleaning the nacelle inspection port and maintaining the magnetic thermal cleaning equipment will not interfere with the operation of the pipeline system.

[0050] Furthermore, after the cleaning operation is completed, the embodiment of the present invention can also provide equipment maintenance and overhaul functions. Among them, an overhaul port is provided at the rear of the nacelle. When the nacelle valve 200 is closed, the overhaul port can be opened to overhaul the magnetic thermal cleaning device 300 in the nacelle without affecting the normal operation of the pipeline system; after the overhaul is completed, the overhaul port is closed. Since the nacelle structure of the present invention adopts a semi-open design, overhaul and maintenance are convenient. When the control unit detects a fault, the valve can be quickly closed and the overhaul port can be opened for diagnosis and maintenance.

[0051] The magnetic thermal cleaning nacelle provided in the embodiment of the present invention combines the magnetic thermal cleaning nacelle with the pipeline of the water supply system to replace the existing water supply main pipe or branch pipe. An external high-power power supply is used to provide a sufficient power source for the strong alternating magnetic field of the magnetic thermal cleaning equipment, thereby heating the superparamagnetic nanoparticles (SMNPs), generating heat, killing the drifting and pipe wall attachments, or forcing the already attached ones to fall off, ensuring that the ideal cleaning effect is achieved efficiently. At the same time, the nacelle structure design is easy to inspect and maintain, with relatively low cost, and is suitable for large-scale application in water supply pipeline systems. It solves the problems of high cost of large-scale transformation of water supply pipelines and potential engineering risks during the cleaning process, and improves the operability and stability of the magnetic thermal cleaning equipment itself and the water supply pipeline during operation and maintenance.

[0052] Next, the water pipeline cleaning method according to the embodiment of the present invention is described with reference to the accompanying drawings.

[0053] Figure 4 It is a flow chart of a method for cleaning a water pipeline according to an embodiment of the present invention.

[0054] The method for cleaning the water pipeline of the embodiment of the present invention adopts Figure 1 The magnetic thermal cleaning nacelle shown in the embodiment.

[0055] like Figure 4 As shown, the cleaning method of the water pipeline comprises the following steps:

[0056] In step S401, it is determined whether an instruction to start cleaning attachments is received;

[0057] In step S402, if an instruction to start cleaning the attachments is received, the nacelle valve is opened, and the power reel is controlled to rotate in a first direction, so that the magnetic thermal attachment cleaning device is at the target position of the pipeline to be cleaned to clean the attachments.

[0058] Furthermore, in some embodiments, the method for cleaning a water pipeline further includes: determining whether an instruction to end cleaning of the attachments has been received; if an instruction to end cleaning of the attachments has been received, controlling the power reel to rotate in a second direction, retracting the magnetic thermal cleaning device into the nacelle body, and closing the nacelle valve.

[0059] It should be noted that the above explanation of the embodiment of the magnetic thermal cleaning nacelle is also applicable to the cleaning method of the water pipe of this embodiment, which will not be repeated here.

[0060] According to the method for cleaning water pipelines proposed in an embodiment of the present invention, a magnetic thermal cleaning nacelle is combined with the pipeline of the water supply system to replace the existing water supply main pipe or branch pipe. An external high-power power supply is used to provide a sufficient power source for the strong alternating magnetic field of the magnetic thermal cleaning equipment, thereby heating superparamagnetic nanoparticles (SMNPs), generating heat, killing drifting and pipe wall attachments, or forcing already attached attachments to fall off, ensuring efficient and ideal clam cleaning effects. At the same time, the nacelle structure design is easy to inspect and maintain, with relatively low cost, and is suitable for large-scale application in water pipeline systems. It solves the problems of high cost of large-scale transformation of water pipelines and potential engineering risks during the cleaning process, and improves the operability and stability of the magnetic thermal cleaning equipment itself and the water pipeline during operation and inspection.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "N" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0063] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0064] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0065] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

Claims

1. A magnetic thermal cleaning nacelle, characterized in that: include: Nacelle hull; A nacelle valve disposed on a first side of the nacelle body, the nacelle valve being connected to a pipeline to be cleaned; A magnetic thermal cleaning device and a power supply spool are arranged in the nacelle, one end of the power supply spool is connected to a power access node, and the other end of the power supply spool is connected to the electromagnetic coil of the magnetic thermal cleaning device; A control component, the control component is connected to the power line shaft, and is used to open the nacelle valve and control the power line shaft to rotate in a first direction when receiving an instruction to start cleaning the attachments, so that the magnetic thermal cleaning device is at a target position of the pipeline to be cleaned to clean the attachments; When receiving the instruction to finish cleaning the attachments, the power supply spool is controlled to rotate in the second direction, the magnetic thermal attachment cleaning device is retracted into the nacelle body, and the nacelle valve is closed.

2. The magnetic thermal cleaning nacelle according to claim 1, characterized in that: Also includes: A nacelle inspection port provided on the second side of the nacelle body, the nacelle inspection port being used for repairing the magnetic thermal cleaning nacelle; An inspection port cover plate is used to seal the nacelle inspection port.

3. The magnetic thermal cleaning nacelle according to claim 2, characterized in that: Also includes: A lighting assembly provided at the nacelle inspection port, for providing lighting during inspection; The warning component arranged corresponding to the nacelle inspection port is used for providing safety reminders.

4. The magnetic thermal cleaning nacelle according to claim 2, characterized in that: The material of the inspection port cover is stainless steel or glass fiber reinforced plastic.

5. The magnetic thermal cleaning nacelle according to claim 2, characterized in that: The size of the nacelle inspection port is determined by the size of the pipeline to be cleaned and the size of the nacelle body.

6. The magnetic thermal cleaning nacelle according to claim 1, characterized in that: Also includes: A power supply component is connected to the control component and the power access node respectively, and is used to supply power to the magnetic thermal cleaning device when receiving an instruction to start cleaning the attachments.

7. The magnetic thermal cleaning nacelle according to claim 1, characterized in that: When the diameter of the pipeline to be cleaned is less than or equal to the preset size, the nacelle valve adopts a stop valve, and when the diameter of the pipeline to be cleaned is greater than the preset size, the nacelle valve adopts a gate valve or a butterfly valve.

8. The magnetic thermal cleaning nacelle according to claim 1, characterized in that: The inner wall of the nacelle body may be coated with a magnetocaloric coating.

9. A method for cleaning a water pipeline, characterized in that: The method of magnetic thermal cleaning nacelle according to any one of claims 1 to 8 comprises the following steps: Determining whether the attachment cleaning start instruction is received; If the attachment cleaning start instruction is received, the nacelle valve is opened, and the power line shaft is controlled to rotate in a first direction, so that the magnetic thermal attachment cleaning device is at the target position of the pipeline to be cleaned to clean the attachments.

10. The method according to claim 9, characterized in that Also includes: Determining whether the attachment cleaning end instruction is received; If the instruction to finish cleaning the attachments is received, the power supply spool is controlled to rotate in the second direction, the magnetic thermal attachment cleaning device is retracted into the nacelle body, and the nacelle valve is closed.

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