A cleaning system for power line insulators and a method of cleaning power line insulators

Abstract

The application discloses a cleaning system and a cleaning method for a power transmission line insulator. The cleaning system for the power transmission line insulator comprises a pure water storage tank, a steam generating device, a compressed air device, a handheld steam cleaning device and a portable isolation baffle. The handheld steam cleaning device comprises a handle and steam pipeline and air pipeline arranged on the handle, the steam pipeline is connected with the steam generating device, and the air pipeline is connected with the compressed air device. The steam generated by the steam generating device is sprayed out of the outlet of the steam pipeline to act on the insulator. The high-pressure air generated by the compressed air device is sprayed out of the outlet of the air pipeline to blow away the water droplets on the insulator. The portable isolation baffle is used for blocking two adjacent insulators. The portable isolation baffle is formed with an accommodating groove, and the handheld steam cleaning device passes through the accommodating groove to clean the insulator located at the rear side of the portable isolation baffle.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power maintenance, in particular to a cleaning system for insulators of a power transmission line and a cleaning method for insulators of a power transmission line. BACKGROUND

[0002] Stable operation of a power transmission line is a powerful guarantee for the safety of a power grid system, and the power transmission line is basically outdoors, and the diversity of outdoor environments causes the contamination of insulators of the power transmission line to be diverse; a conventional method for removing contamination of insulators of the power transmission line is to replace new insulators in a power-off state, and to use anti-pollution insulators sprayed with an anti-pollution coating in a heavy contamination case, and to remove by a non-power-off cleaning method.

[0003] The methods for solving contamination of insulators of the power transmission line at the present stage are as follows: 1. Replacing new insulators in a power-off state, and using anti-pollution insulators sprayed with an anti-pollution coating in a heavy contamination case, which has the disadvantage of requiring power-off operation, and replacing insulators is time-consuming and laborious, and has a high cost. 2. Non-power-off cleaning, which has the disadvantage that, in the cleaning process, the dispersion of contaminated particles causes secondary contamination of other insulators, and for contamination deposited on insulators of a power transmission line near a chemical plant, the contamination has the characteristics of strong adhesion and large viscosity, and cannot be removed by non-power-off cleaning. 3. Non-power-off water flushing, which has the disadvantage that water is inconvenient to obtain for outdoor operation, and the size of water flow is difficult to control in water flushing, which causes a high risk and safety hazard of conduction between each insulator and the ground due to the falling of water flow. SUMMARY

[0004] The purpose of the present application is to provide a cleaning system for insulators of a power transmission line and a cleaning method for insulators of a power transmission line, which are used to solve the above problems.

[0005] Embodiments of the present application are implemented as follows:

[0006] In a first aspect, the present application provides a cleaning system for insulators of a power transmission line, which comprises a pure water storage tank, a steam generating device, a compressed air device, a handheld steam cleaning device, and a portable isolation baffle.

[0007] The pure water storage tank is connected to the steam generating device, and is used to supply pure water to the steam generating device;

[0008] The handheld steam cleaning device comprises a handle and steam pipelines and air pipelines arranged on the handle, the steam pipelines are connected to the steam generating device, and the air pipelines are connected to the compressed air device;

[0009] The steam generated by the steam generating device is sprayed out of the outlet of the steam pipelines to act on the insulators.

[0010] The high-pressure air generated by the compressed air device is sprayed out of the outlet of the air pipeline to blow away the water drops on the insulator;

[0011] The portable isolation baffle is used to block two adjacent insulators, and the portable isolation baffle is formed with an accommodation groove through which the handheld steam cleaning device passes to clean the insulator located at the rear side of the portable isolation baffle.

[0012] In the above-mentioned implementation process, for the live cleaning of the insulator of the tower line, the operator first places the pure water storage tank and the air compressor in a suitable operation area of the tower, fastens a safety belt, climbs to the iron tower insulating cross arm at the live cleaning area from the ground, places the steam generating device on the cross arm at the operation area by the safety insulating rope, fixes the handheld cleaning device and the portable isolation baffle at the cross arm at the operation area, then connects the pure water storage tank and the steam generating device through the water pipe, connects the steam generating device and the handheld cleaning device through the insulating pressure-resistant steam pipe, and connects the air compressor device and the handheld cleaning device through the insulating air pipe; the steam generating device is started, the steam outlet of the handheld steam cleaning device is moved to the empty place, the initial-stage pure water is discharged, and the steam cleaning is performed again until the steam appears.

[0013] Exemplarily, for the live and dirty cleaning of the line strain insulator string and the straight insulator string, the cleaning is performed from the low part to the high part, the low part is cleaned first, and then the cleaning is sequentially performed, after the first insulator at the low part is cleaned, the portable isolation baffle is used to isolate the first insulator and the second insulator, the second insulator is cleaned by steam, after the second insulator is cleaned, the portable isolation baffle is used to isolate the second insulator and the third insulator, the third insulator is cleaned by steam, and the operation is performed in this way. After each insulator of the insulator string is cleaned, the portable isolation baffle is removed, and the steam is used for overall back-sweeping. In the cleaning process, the compressed air device works, the handheld steam cleaning device sprays air to blow away the water drops left by the steam cleaning insulator, and the dirty water line is avoided to be in contact with the ground.

[0014] In an alternative embodiment, the handle is rod-shaped and has a first portion and a second portion connected to each other, the first portion is solid, and the second portion is hollow;

[0015] The handheld steam cleaning device further comprises a first pipeline and a second pipeline, the first pipeline and the second pipeline are arranged in the interior of the second portion, and the outlets of the first pipeline and the second pipeline extend out of the second portion in parallel to each other, and the inlets of the first pipeline and the second pipeline penetrate the wall surface of the second portion;

[0016] The first pipeline defines a steam pipeline, and the inlet thereof is connected to the steam generating device;

[0017] The second pipeline defines an air pipeline, and the inlet thereof is connected to the compressed air device.

[0018] In the process of the implementation, the operator holds the first part with the palm, and the first part is solid, so the force is good, and various actions can be made on the second part with the first part as the fulcrum, which is beneficial to the cleaning work of the insulator; meanwhile, the outlets of the first pipeline and the second pipeline are arranged in parallel, so the orientations of the outlets are consistent, which is beneficial to the steam and high-pressure gas acting on the same insulator, beneficial to the cleaning effect and blowing effect, and ensures the integrity and safety of the cleaning.

[0019] In an optional embodiment, a waterproof cover is arranged between the first part and the second part.

[0020] In the process of the implementation, considering that the second part may be higher than the first part during the cleaning of the insulator, or the steam generated by the second part may blow to the first part in the air, the waterproof cover is arranged to ensure the safety of the cleaning, so as to avoid the steam or water droplets sliding from the second part to the first part.

[0021] In an optional embodiment, the steam generating device comprises a shell, a diesel tank, an oil injection ignition device, and an evaporation pipe.

[0022] The evaporation pipe is arranged in a meandering manner in the interior of the shell, one end of the evaporation pipe is connected to the pure water storage tank through a working medium pump, and the other end of the evaporation pipe is connected to the first pipeline.

[0023] The diesel tank is arranged outside the shell, and the oil injection ignition device is arranged at the top of the shell and connected to the diesel tank.

[0024] The oil injection ignition device is used for injecting diesel into the interior of the shell and igniting to heat the evaporation pipe.

[0025] In the process of the implementation, the working medium pump works to deliver pure water to the evaporation pipe, the oil injection ignition device works when the pure water is in the shell, the diesel is ignited and sprayed to the evaporation pipe, heat exchange occurs, and the pure water in the evaporation pipe evaporates to be sprayed from the first pipeline.

[0026] In an optional embodiment, the shell is provided with a ventilation hole.

[0027] In the process of the implementation, the ventilation hole supplies air to the shell to ensure that the diesel can be ignited; meanwhile, the flue gas generated by the combustion of the diesel can be discharged through the ventilation hole.

[0028] In an optional embodiment, the portable isolation baffle comprises a first hand-held rod, a second hand-held rod, a first isolation baffle, and a second isolation baffle.

[0029] The first hand-held rod is connected to the first isolation baffle, and the second hand-held rod is movably connected to the second isolation baffle through the second isolation baffle.

[0030] The first isolation baffle is formed with a receiving groove, and the receiving groove extends from the edge of the first isolation baffle to the center of the first isolation baffle;

[0031] The second isolation baffle is formed with a receiving hole, and the size of the receiving hole matches the size of the handheld steam cleaning device, for accommodating the handheld steam cleaning device;

[0032] The second isolation baffle is matched with the first isolation baffle, for shielding the receiving groove.

[0033] In the implementation process, when the operator uses the portable isolation baffle to isolate two adjacent insulators, first, the second hand-held rod is operated to make the second isolation baffle not shield the receiving groove of the first isolation baffle, so that the handheld steam cleaning device can enter the receiving groove through the opening of the receiving groove of the first isolation baffle; then, the second hand-held rod is adjusted to make the second isolation baffle move, so that the receiving hole is clamped on the handheld steam cleaning device and the second isolation baffle shields the remaining part of the receiving groove, only allowing the handheld steam cleaning device to pass through, so as to cooperate with the first isolation baffle to isolate the two adjacent insulators, avoiding the occurrence of a loophole to cause the insulators to be contaminated again.

[0034] In a second aspect, the application also provides a cleaning method of a power transmission line insulator, comprising the following steps:

[0035] S1, providing the cleaning system of the power transmission line insulator according to any one of the above;

[0036] S2, placing the pure water storage tank and the compressed air device under the tower of the insulator to be cleaned, hoisting the steam generating device to the idle cross arm of the tower, and placing the steam generating device according to the tower structure of different voltage grades; the operator wears safety protection tools, carries the handheld steam cleaning device and the portable isolation baffle, and climbs the tower to stand at the safe position of the cross arm;

[0037] S3, the pure water storage tank supplies pure water to the steam generating device through the water pipe to generate steam, and the steam reaches the handheld steam cleaning device through the steam pipeline and is sprayed out, the outlet temperature of the steam is not higher than 200 DEG C, and the system pressure is not higher than 2Mpa;

[0038] S4, the compressed air device works, and the compressed air is sprayed out of the handheld steam cleaning device to blow away the water droplets generated by the steam, so as to avoid the formation of water lines;

[0039] S5, when the steam cleans the insulator, the portable isolation baffle is between the two adjacent insulators.

[0040] In an optional embodiment, in step S3, sodium carbonate peroxide and a surfactant can be sprayed together with the steam to the surface of the insulator. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0042] Figure 1 A schematic diagram of the cleaning system for the power transmission line insulator in the present embodiment in working condition;

[0043] Figure 2 A schematic diagram of the handheld steam cleaning device in the present embodiment;

[0044] Figure 3 A schematic diagram of the handheld steam cleaning device and the portable isolation baffle in the present embodiment in working condition;

[0045] Figure 4 A schematic diagram of the steam generating device in the present embodiment;

[0046] Figure 5 An internal structure diagram of the shell in the present embodiment;

[0047] Figure 6 A schematic diagram of the portable isolation baffle in the present embodiment.

[0048] Fig. 10: pure water storage tank; 11-steam generating device; 12-compressed air device; 13-handheld steam cleaning device; 14-portable isolation baffle; 15-first pipeline; 16-second pipeline; 17-waterproof cover; 18-shell; 19-diesel tank; 20-oil injection ignition device; 21-evaporation pipe; 22-working medium pump; 23-first handheld rod; 24-first isolation baffle; 25-second isolation baffle; 26-containing groove; 27-containing hole. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0050] The following detailed description of embodiments of the application in the drawings provided is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based upon the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of the application.

[0051] It should be noted that similar reference numbers and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0052] In the description of the application, it should be explained that the terms "inner", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.

[0053] In the description of the application, it should be further explained that, unless otherwise explicitly specified and limited, the terms "provided", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0054] In the application, unless otherwise explicitly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0055] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict.

[0056] The embodiment provides a cleaning system for a power transmission line insulator.

[0057] Please refer to Figure 1 , Figure 2 andFigure 3 , Figure 1 is a schematic view of the cleaning system for the insulator of the power transmission line in operation in this embodiment, Figure 2 is a schematic view of the handheld steam cleaning device 13 in this embodiment, Figure 3 is a schematic view of the handheld steam cleaning device 13 and the portable isolation baffle 14 in operation in this embodiment.

[0058] The cleaning system for the insulator of the power transmission line comprises a pure water storage tank 10, a steam generating device 11, a compressed air device 12, a handheld steam cleaning device 13, and a portable isolation baffle 14.

[0059] The pure water storage tank 10 is connected to the steam generating device 11 and is used to supply pure water to the steam generating device 11.

[0060] The handheld steam cleaning device 13 comprises a handle and steam pipeline and air pipeline arranged on the handle, the steam pipeline is connected to the steam generating device 11, and the air pipeline is connected to the compressed air device 12.

[0061] The steam generated by the steam generating device 11 is sprayed out of the outlet of the steam pipeline to act on the insulator. The high-pressure air generated by the compressed air device 12 is sprayed out of the outlet of the air pipeline to blow away the water droplets on the insulator. The portable isolation baffle 14 is used to block two adjacent insulators. The portable isolation baffle 14 is formed with an accommodation groove 26, and the handheld steam cleaning device 13 passes through the accommodation groove 26 to clean the insulator located at the back side of the portable isolation baffle 14.

[0062] In the above-mentioned implementation process, for the live cleaning of the tower line insulator, the operator first places the pure water storage tank and the air compressor in the appropriate working area of the tower, puts on a safety belt, climbs to the iron tower insulating cross arm of the live cleaning area from the ground, places the steam generating device 11 on the cross arm of the working area by the safety insulating rope, and fixes it. The handheld cleaning device and the portable isolation baffle 14 are placed on the cross arm of the working area. Then, the pure water storage tank 10 is connected to the steam generating device through a water pipe, the steam generating device is connected to the handheld cleaning device through an insulating pressure-resistant steam pipe, and the air compressor device is connected to the handheld cleaning device through an insulating air pipe. The steam generating device is started, the steam outlet of the handheld steam cleaning device is moved to an empty place, the initial stage of pure water is discharged, and the steam cleaning is performed again until the steam appears. The cleaning method can be:

[0063] Exemplarily, for the line strain insulator string and straight insulator string pollution charging cleaning, the cleaning sequence from the low insulator to the high insulator is adopted, the low insulator is cleaned first, and then the insulators are sequentially cleaned, after the first insulator of the low insulator is cleaned, the portable isolation baffle 14 is used to isolate the first insulator and the second insulator, the second insulator is cleaned by steam, after the second insulator is cleaned, the portable isolation baffle 14 is used to isolate the second insulator and the third insulator, the third insulator is cleaned by steam, and so on. After each insulator of the insulator string is cleaned, the portable isolation baffle 14 is removed, and the steam is swept back as a whole. In the cleaning process, the compressed air device 12 works, the handheld steam cleaning device 13 sprays air, the water droplets left on the insulator by the steam cleaning are blown away, and the sewage line is prevented from being in contact with the ground.

[0064] In the present disclosure, the handle is in the shape of a rod, has a first part and a second part connected to each other, the first part is solid, and the second part is hollow.

[0065] The handheld steam cleaning device 13 further includes a first pipe 15 and a second pipe 16, both of which are arranged inside the second part, and the outlets of the first pipe 15 and the second pipe 16 extend out of the second part in parallel to each other, and the inlets of the first pipe 15 and the second pipe 16 penetrate the wall surface of the second part.

[0066] The first pipe 15 defines a steam pipeline, and its inlet is connected to the steam generating device 11.

[0067] The second pipe 16 defines an air pipeline, and its inlet is connected to the compressed air device 12.

[0068] In the above implementation process, the operator holds the first part with his palm, and since the first part is solid, it is well stressed and can be used as a fulcrum to make various movements on the second part, which is beneficial to the cleaning work of the insulator. At the same time, the outlets of the first pipe 15 and the second pipe 16 are arranged in parallel, so their directions are consistent, which is beneficial to the steam and high-pressure gas acting on the same insulator, and is beneficial to the cleaning effect and the blowing effect, ensuring the completeness and safety of the cleaning.

[0069] In the present disclosure, a waterproof cover 17 is arranged between the first part and the second part.

[0070] In the above implementation process, it is considered that in the process of cleaning the insulator, the second part may be higher than the first part, or the steam generated by the second part may blow to the first part in the air, therefore, in order to ensure the safety of the cleaning, the waterproof cover 17 is arranged to prevent the steam or water droplets from sliding from the second part to the first part.

[0071] Please refer to Figure 4 and Figure 5 , Figure 4Fig. 1 is a schematic diagram of the steam generating device 11 in the embodiment. Figure 5 Fig. 2 is an internal structure diagram of the housing 18 in the embodiment.

[0072] The steam generating device 11 comprises a housing 18, a diesel tank 19, an oil injection ignition device 20, and an evaporation pipe 21.

[0073] The evaporation pipe 21 is arranged in a serpentine shape inside the housing 18, one end of the evaporation pipe 21 is connected to the pure water storage tank 10 through a working medium pump 22, and the other end of the evaporation pipe 21 is connected to the first pipeline 15.

[0074] The diesel tank 19 is arranged outside the housing 18, and the oil injection ignition device 20 is arranged on the top of the housing 18 and connected to the diesel tank 19.

[0075] The oil injection ignition device 20 is used to inject diesel into the inside of the housing 18 and ignite it to heat the evaporation pipe 21.

[0076] In the above implementation process, the working medium pump 22 works to deliver pure water to the evaporation pipe 21, and when the pure water is in the housing 18, the oil injection ignition device 20 works to ignite the diesel and spray it to the evaporation pipe 21, heat energy exchange occurs, and the pure water inside the evaporation pipe 21 evaporates to be sprayed out from the first pipeline 15.

[0077] It should be noted that the housing 18 is provided with a ventilation hole.

[0078] In the above implementation process, the ventilation hole supplies air to the housing 18 to ensure that the diesel can be ignited; at the same time, the flue gas generated by the combustion of the diesel can be discharged through the ventilation hole.

[0079] Please refer to Figure 6 , Figure 6 Fig. 3 is a schematic diagram of the portable isolation baffle 14 in the embodiment.

[0080] The portable isolation baffle 14 comprises a first hand-held rod 23, a second hand-held rod, a first isolation baffle 24, and a second isolation baffle 25.

[0081] It should be noted that the second hand-held rod is inside the first hand-held rod 23 in the embodiment, so Figure 6 The second hand-held rod in the above is hidden by the first hand-held rod 23.

[0082] The first hand-held rod 23 is connected to the first isolation baffle 24, and the second hand-held rod is movably connected to the second isolation baffle 25 by penetrating through the second isolation baffle 25.

[0083] The first isolation baffle 24 is formed with a receiving groove 26, and the receiving groove 26 extends from the edge of the first isolation baffle 24 to the center of the first isolation baffle 24.

[0084] The second isolation baffle 25 is formed with a receiving hole 27 which is matched in size with the handheld steam cleaning device 13 for receiving the handheld steam cleaning device 13.

[0085] The second isolation baffle 25 is matched with the first isolation baffle 24 for shielding the receiving groove 26.

[0086] In the above implementation process, when the operator uses the portable isolation baffle 14 to isolate two adjacent insulators, first, the second handheld rod is operated so that the second isolation baffle 25 does not shield the receiving groove 26 of the first isolation baffle 24, so that the handheld steam cleaning device 13 can enter the receiving groove 26 through the opening of the receiving groove 26 of the first isolation baffle 24; then, the second handheld rod is adjusted so that the second isolation baffle moves, so that the receiving hole 27 is clamped on the handheld steam cleaning device 13 and the second isolation baffle 25 shields the remaining part of the receiving groove 26, only allowing the handheld steam cleaning device 13 to pass through, so as to cooperate with the first isolation baffle 24 to isolate the two adjacent insulators, avoiding the occurrence of loopholes and causing the insulators to be contaminated again.

[0087] It should be noted that the embodiment also provides a cleaning method for a transmission line insulator, comprising the following steps:

[0088] S1, providing a cleaning system for a transmission line insulator according to any one of the above;

[0089] S2, placing the pure water storage tank 10 and the compressed air device 12 under the tower of the line insulator to be cleaned, hoisting the steam generating device 11 to the idle cross arm of the tower, and placing the steam generating device 11 according to the tower structure of different voltage grades, and the operator wears safety protection tools, carries the handheld steam cleaning device and the portable isolation baffle 14 to the tower, and stands on the cross arm safely;

[0090] S3, the pure water storage tank 10 supplies pure water to the steam generating device 11 through the water pipe to generate steam, and the steam reaches the handheld steam cleaning device 13 through the steam pipeline and sprays out, and the outlet temperature of the steam is not higher than 200℃, and the system pressure is not higher than 2Mpa;

[0091] S4, the compressed air device 12 works, and the compressed air is sprayed out of the handheld steam cleaning device to blow away the water droplets generated by the steam to avoid forming water lines;

[0092] S5, when the steam is cleaning the insulator, the portable isolation baffle 14 is between the two adjacent insulators.

[0093] It should be noted that in step S3, sodium percarbonate and a surfactant can be sprayed together with the steam to the surface of the insulator.

[0094] Spraying sodium carbonate peroxide and surfactant can effectively and quickly soften and dissolve dirt, which is beneficial to the effect of cleaning the insulator under electrification.

[0095] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of cleaning a power line insulator, characterized by, The method comprises the following steps: S1, providing a cleaning system for power line insulators, the cleaning system for power line insulators comprising a pure water storage tank, a steam generating device, a compressed air device, a handheld steam cleaning device, and a portable isolation baffle; the pure water storage tank is connected with the steam generating device, for supplying pure water to the steam generating device; the handheld steam cleaning device comprises a handle and steam pipelines and air pipelines arranged on the handle, the steam pipelines being connected with the steam generating device, and the air pipelines being connected with the compressed air device; wherein steam generated by the steam generating device is sprayed out of the outlets of the steam pipelines to act on the insulators; high-pressure air generated by the compressed air device is sprayed out of the outlets of the air pipelines to blow away water droplets on the insulators; the portable isolation baffle is used to block two adjacent insulators, the portable isolation baffle is formed with an accommodation groove, the handheld steam cleaning device passes through the accommodation groove to clean the insulators located at the back side of the portable isolation baffle; the handle is in the shape of a rod, has a first part and a second part connected with each other, the first part is solid, and the second part is hollow; the handheld steam cleaning device further comprises a first pipeline and a second pipeline, the first pipeline and the second pipeline are both arranged inside the second part, the outlets of the first pipeline and the second pipeline extend out of the second part in parallel with each other, and the inlets of the first pipeline and the second pipeline penetrate through the wall surface of the second part; the first pipeline defines the steam pipelines, and its inlet is connected with the steam generating device; the second pipeline defines the air pipelines, and its inlet is connected with the compressed air device; a waterproof cover is arranged between the first part and the second part; the portable isolation baffle comprises a first handheld rod, a second handheld rod, a first isolation baffle, and a second isolation baffle; the first handheld rod is connected with the first isolation baffle, and the second handheld rod is movably connected with the second isolation baffle by penetrating through the second isolation baffle; the first isolation baffle is formed with the accommodation groove, the accommodation groove extends from the edge of the first isolation baffle to the center of the first isolation baffle; the second isolation baffle is formed with an accommodation hole, the size of the accommodation hole matches the size of the handheld steam cleaning device, and the accommodation hole is used to accommodate the handheld steam cleaning device; wherein the second isolation baffle is attached with the first isolation baffle to shield the accommodation groove; S2, placing the pure water storage tank and the compressed air device under the tower of the line insulators to be cleaned, hoisting the steam generating device to the idle cross arm of the iron tower, the placement of the steam generating device being determined according to the tower structure of different voltage grades, the operator wearing safety protection tools, carrying the handheld steam cleaning device and the portable isolation baffle to the tower, and standing at the safe position of the cross arm; S3, the pure water storage tank delivers pure water to the steam generating device through a water pipe to generate steam, and the steam reaches the handheld steam cleaning device through a steam pipe to spray out steam, with a steam outlet temperature not higher than 200℃ and a system pressure not higher than 2Mpa; S4, the compressed air device works, and compressed air is sprayed out of the handheld steam cleaning device to blow away the water droplets generated by the steam to avoid forming water lines; S5, when the steam is cleaning insulators, the portable isolation baffle is between two adjacent insulators.

2. The cleaning method of the power transmission line insulator according to claim 1, characterized in that, In step S3, sodium percarbonate and surfactant can be sprayed together with steam to the surface of the insulator.

3. The cleaning method of the power transmission line insulator according to claim 1, characterized in that, The steam generating device comprises a shell, a diesel tank, an oil injection ignition device, and an evaporation pipe; The evaporation pipe is arranged in a serpentine shape inside the shell, one end of the evaporation pipe is connected to the pure water storage tank through a working medium pump, and the other end of the evaporation pipe is connected to the first pipe; The diesel tank is arranged outside the shell, the oil injection ignition device is arranged at the top of the shell and is connected to the diesel tank; The oil injection ignition device is used to inject diesel into the interior of the shell and ignite it to heat the evaporation pipe.

4. The cleaning method of the power transmission line insulator according to claim 3, characterized in that, The shell is provided with a ventilation hole.

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