Wet electric incubator and method for replacing the insulating porcelain bottle thereof

Abstract

The present application relates to a kind of wet electric incubator and its insulating porcelain bottle replacement method, including porcelain bottle support seat board, the insulating porcelain bottle of installation and positioning is installed on the porcelain bottle support seat board, the upper end of the insulating porcelain bottle is capped with the split type porcelain bottle cover plate split to left and right, split type porcelain bottle cover plate can be detachably installed with the electrically conductive hanger bar of lower end through porcelain bottle support seat board.The wet electric incubator is convenient to realize the replacement of insulating porcelain bottle, and insulating porcelain bottle is convenient and simple, effectively reduces downtime maintenance time.

Description

TECHNICAL FIELD

[0001] The present application relates to a wet electric heat preservation box and a method for replacing the insulating porcelain bottle thereof. BACKGROUND

[0002] In order to realize the dust removal requirement of ultra-low emission and waste gas absorption purification, a wet electric dust collector is usually installed in a desulfurization tower for flue gas treatment. An anode module is arranged in the wet electric dust collector, and the anode module is composed of anode pipes which are uniformly arranged and parallel to the axis of the desulfurization tower. A metal cathode wire is arranged in the center of each anode pipe along the axis. In order to realize the hoisting and fixing of the cathode wire, the upper end of the cathode wire is usually hoisted on a hanger. Since the cathode wire is electrified, in order to avoid electric conduction to the tower wall, the fulcrums at both ends of the hanger cannot be in direct contact with the tower, and the hanger is usually penetrated through the tower wall and suspended on an insulating porcelain bottle, and the insulating porcelain bottle is supported and fixed on an ear seat on the outer wall of the tower. In order to realize the heat preservation of the insulating porcelain bottle, a heat preservation box connected with the ear seat is arranged outside the insulating porcelain bottle to form a wet electric heat preservation box. However, during the operation of the desulfurization tower, especially in winter when the temperature is low, the gas in the tower will be transmitted to the insulating porcelain bottle through the hanger penetration pipe of the tower wall and the ear seat. When the air in the heat preservation box contacts the porcelain bottle, condensate water will appear, and the condensate water will drop on the insulating porcelain bottle, which will cause the insulating porcelain bottle to conduct electricity and make the wet electric dust collector ineffective, and will also cause the insulating porcelain bottle to be broken and damaged due to high-voltage discharge.

[0003] Since the insulating porcelain bottle is fixed with the ear seat, and the cover plate at the upper end of the porcelain bottle is connected with the hanger rod for hoisting the hanger (the hanger rod is electrified), the weight of the hanger, the cathode wire and the like is completely applied to the insulating porcelain bottle. When the insulating porcelain bottle is damaged, the corresponding hanger beam and the cathode wire need to be disassembled and re-adjusted in a large range in order to replace the insulating porcelain bottle, which not only has a large amount of work, but also is difficult to replace, and causes a long production downtime, which seriously affects the production. Therefore, a heat preservation box and a method for replacing the insulating porcelain bottle are needed. SUMMARY

[0004] The present application aims to provide a wet electric heat preservation box and a method for replacing the insulating porcelain bottle thereof, which facilitates the replacement of the insulating porcelain bottle, and the method for replacing the insulating porcelain bottle is simple and convenient, and effectively reduces the downtime for maintenance.

[0005] The technical solution of the present application is as follows: a wet electric heat preservation box, comprising a porcelain bottle support seat plate, a heat preservation cylinder is installed on the porcelain bottle support seat plate, a cylinder cover is installed at the upper end of the heat preservation cylinder, an insulating porcelain bottle is placed and positioned on the porcelain bottle support seat plate, a split type porcelain bottle cover plate which is split into left and right parts is installed on the upper end of the insulating porcelain bottle, and a conductive hanger rod which penetrates through the porcelain bottle support seat plate is detachably installed on the split type porcelain bottle cover plate.

[0006] Further, the split type porcelain bottle cover plate comprises a left cover plate and a right cover plate which are combined to form a circular truncated cone, and the end faces of the left cover plate and the right cover plate are provided with lugs respectively, and the lugs on the same side are connected by bolts to form an integrated body.

[0007] Further, the lower end face of the split type porcelain bottle cover plate is provided with a positioning recess for the upper end of the insulating porcelain bottle to extend into, and the middle part of the split type porcelain bottle cover plate is provided with an avoiding hole for the conductive suspension rod to pass through.

[0008] Further, the upper end of the conductive suspension rod is provided with a connecting end head on the upper side of the split type porcelain bottle cover plate, the peripheral part of the connecting end head is provided with bolt holes at intervals, and the bolt holes are connected and fixed with the bolt holes provided on the upper end face of the split type porcelain bottle cover plate by bolts; and the upper end of the connecting end head is provided with a lifting ring connecting hole.

[0009] Further, the upper end face of the porcelain bottle support seat plate is provided with an annular flange for limiting the lower end of the insulating porcelain bottle inside, and the porcelain bottle support seat plate is provided with a suspension rod through hole inside the arc-shaped flange; the peripheral part of the porcelain bottle support seat plate is provided with mounting through holes at intervals, and the lower side of the porcelain bottle support seat plate and outside the suspension rod through hole is provided with a downward extending pipe body.

[0010] Further, the inner wall of the heat preservation cylinder is provided with a heat preservation layer, the side wall of the heat preservation cylinder is provided with a heater mounting hole, a hot air inlet pipe and a temperature sensor, and the peripheral part of the cylinder cover is detachably connected with the upper end of the heat preservation cylinder by bolts.

[0011] An insulating porcelain bottle replacement method comprises a wet electric heat preservation box, and comprises the following steps:

[0012] (1) The wet electric dust collector is powered off, and the heat preservation cylinder and the cylinder cover are removed;

[0013] (2) A new insulating porcelain bottle is hung on the upper part of the chain of the hand-operated hoist by the porcelain bottle hoisting and fixing device;

[0014] (3) The chain of the hand-operated hoist is lowered, the hook at the lower end of the chain is connected with the conductive suspension rod firmly, and then the conductive suspension rod is pulled up by 5-9 mm;

[0015] (4) The split type porcelain bottle cover plate is removed, and the left cover plate and the right cover plate are separated from the conductive suspension rod;

[0016] (5) A baffle located on the upper side of the porcelain bottle support seat plate is installed at the bottom of the old insulating porcelain bottle, and then the old insulating porcelain bottle is removed in a destructive manner;

[0017] (6) The new insulating porcelain bottle is lowered and installed in place by the porcelain bottle hoisting and fixing device, and the baffle is removed before being installed in place;

[0018] (7) fold the left cover plate and the right cover plate into one body, and lower the conductive guide rod, and connect the conductive guide rod with the left cover plate and the right cover plate into one body;

[0019] (8) separate the hook from the conductive guide rod, and install the heat preservation cylinder and the cylinder cover in place.

[0020] Further, the porcelain bottle hoisting fixing device comprises a split type supporting plate frame composed of a left supporting plate and a right supporting plate with a flat bottom surface, and a connecting frame for being installed on a hand-operated hoist hanging chain, and a porcelain bottle positioning structure is arranged on the upper end surface of the split type supporting plate frame; an avoiding through opening is arranged in the middle part of the split type supporting plate frame, and a hoisting rope or a hoisting belt capable of being adjusted in extension and contraction is connected to the peripheral part of the split type supporting plate frame, and the upper end of the hoisting rope or the hoisting belt is connected with the connecting frame.

[0021] Further, at least two transverse sliding grooves are arranged in the right supporting plate, a transverse sliding rod is arranged on the left supporting plate and extends into the transverse sliding grooves, and arc-shaped recesses are arranged on the surfaces of the left supporting plate and the right supporting plate which are in close contact with each other to form the avoiding through opening; the porcelain bottle positioning structure is an annular protrusion, or the porcelain bottle positioning structure is composed of a plurality of protruding columns which are arranged at intervals in the circumferential direction.

[0022] Further, the connecting frame comprises a horizontal rod, a sleeve ring for being sleeved on the hand-operated hoist hanging chain is arranged in the middle part of the horizontal rod, and a bolt for penetrating through the hand-operated hoist hanging chain is arranged on the sleeve ring; or the connecting frame comprises a transverse screw rod for penetrating through the hand-operated hoist hanging chain, and a pair of hand-tightening nuts are screwed to the transverse screw rod and are located on the two sides of the hand-operated hoist hanging chain.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] 1. The wet electric heat preservation box has a compact structure and adopts a split type structure, each component is convenient to disassemble, and replacement of the insulating porcelain bottle is facilitated, and the problems that the insulating porcelain bottle in the existing wet electric heat preservation box cannot be replaced and replacement is difficult are solved.

[0025] 2. The porcelain bottle supporting seat plate of the wet electric heat preservation box is provided with an annular flange, and installation and positioning of the insulating porcelain bottle are facilitated.

[0026] 3. The wet electric heat preservation box adopts a split type porcelain bottle cover plate to facilitate disassembly of the conductive hoisting rod, and facilitates installation and fixation of a new insulating porcelain bottle after an old insulating porcelain bottle is disassembled.

[0027] 4. The porcelain bottle hoisting fixing device facilitates auxiliary installation of the porcelain bottle in the wet electric heat preservation box, helps to ensure connection and fixation of the insulating porcelain bottle with the hoist chain before the old insulating porcelain bottle is disassembled, and assists the insulating porcelain bottle to descend to a corresponding installation station after the old insulating porcelain bottle is disassembled.

[0028] 5. The replacement method for insulating porcelain bottles is simple and requires little work. It avoids the need to dismantle the lifting beam and readjust the cathode wires extensively, effectively reducing downtime for maintenance, ensuring production, and improving economic efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the disassembled state of the wet electric insulation box of the present invention;

[0030] Figure 2 This is a schematic diagram of the combined structure of the split ceramic bottle cap, conductive rod, and ceramic bottle support plate of the present invention.

[0031] Figure 3 This is a top view schematic diagram of the connection between the split ceramic bottle cap and the hanging rod of the present invention;

[0032] Figure 4 This is a schematic diagram illustrating the removal of the split ceramic bottle cap of the present invention;

[0033] Figure 5 This is a diagram of the baffle structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the structure of the porcelain bottle hoisting and fixing device of the present invention;

[0035] Figure 7 This is a top view of the supporting base plate of the present invention;

[0036] Figure 8 For the present invention Figure 7 AA section view;

[0037] Figure 9 For the present invention Figure 8 BB cross-sectional view;

[0038] Figure 10 This is a top view of the crossbar of the present invention;

[0039] Figure 11 This is a top view of a support base plate according to another embodiment of the present invention;

[0040] Figure 12 This is a top view of a crossbar according to another embodiment of the present invention;

[0041] Fig. 1: 1 - hand chain hoist 2 - hanging chain 3 - hook 4 - new insulating porcelain bottle 5 - old insulating porcelain bottle 6 - baffle 110 - porcelain bottle support seat plate 111 - annular flange 112 - boom through hole 113 - mounting through hole 114 - pipe body 120 - heat preservation cylinder 121 - heat preservation layer 122 - heater mounting hole 123 - hot air inlet pipe 124 - temperature sensor 130 - cylinder cover 140 - insulating porcelain bottle 150 - split type porcelain bottle cover plate 151 - left cover plate 152 - right cover plate 153 - lug 154 - positioning recess 155 - avoidance hole 160 - conductive boom 161 - connecting end 162 - bolt hole 163 - lifting ring connecting hole 210 - split type support plate frame 211 - left support plate 212 - right support plate 213 - avoidance opening 214 - transverse sliding slot 215 - transverse sliding rod 216 - annular protrusion 217 - lifting ring 218 - protruding column 220 - connecting frame 221 - connecting ring 222 - crossbar 223 - collar 224 - bolt 225 - transverse screw rod 226 - hand nut 227 - connecting ring 230 - lifting rope or lifting belt. DETAILED DESCRIPTION

[0042] In order to make the above features and advantages of the present application more apparent, the following specific examples are described in detail below, together with the accompanying drawings, as follows, but the present application is not limited thereto.

[0043] REFERENCE Figures 1 to 3

[0044] A wet electric heat preservation box, comprising a porcelain bottle support seat plate 110 for connecting with a mounting seat mounted on the outer wall of a desulfurization tower, a heat preservation cylinder 120 mounted on the porcelain bottle support seat plate, a cylinder cover 130 mounted on the upper end of the heat preservation cylinder, an insulating porcelain bottle 140 placed and positioned on the porcelain bottle support seat plate, the insulating porcelain bottle being an existing insulating porcelain bottle and having a hollow circular truncated cone structure. The upper end of the insulating porcelain bottle is covered with a split type porcelain bottle cover plate 150, which is split into left and right parts, and a conductive boom 160 is detachably mounted on the split type porcelain bottle cover plate, with the lower end of the conductive boom penetrating through the porcelain bottle support seat plate. Thus, through the cooperation of the porcelain bottle support seat plate, the split type porcelain bottle cover plate and the conductive boom, the replacement of the insulating porcelain bottle is facilitated.

[0045] In this embodiment, in order to realize the dismounting of the conductive boom and facilitate the replacement of the insulating porcelain bottle, the split type porcelain bottle cover plate comprises a left cover plate 151 and a right cover plate 152 which are combined to form a circular truncated cone structure, and a lug 153 is arranged on the front and back sides of the end surface of each of the left and right cover plates, and two lugs on the same side are penetrated by a bolt and connected by a nut to form an integral body. Thus, after the left and right cover plates are split, the conductive boom is separated, which facilitates the lifting of the conductive boom and the subsequent installation of the new insulating porcelain bottle.

[0046] In this embodiment, in order to position the split porcelain cover plate on the upper end of the insulating porcelain bottle, a positioning recess 154 is arranged on the lower end surface of the split porcelain cover plate for the upper end of the insulating porcelain bottle to extend into, and an avoiding hole 155 is arranged in the middle of the split porcelain cover plate for the conductive hanging rod to pass through.

[0047] In this embodiment, the split porcelain cover plate is a metal cover plate.

[0048] In this embodiment, in order to connect the conductive hanging rod with the split porcelain cover plate, the upper end of the conductive hanging rod has a connecting end head 161 on the upper side of the split porcelain cover plate, bolt holes 162 are arranged at intervals on the periphery of the connecting end head, and the connecting end head is connected and fixed with the bolt holes arranged on the upper end surface of the split porcelain cover plate through bolts, so that the connection and disconnection of the conductive hanging rod with the split porcelain cover plate can be realized by tightening or dismounting the bolts. A lifting ring connecting hole 163 is arranged on the upper end of the connecting end head, so that when the conductive porcelain bottle is replaced, the lifting ring is connected with the lifting ring connecting hole, and the conductive hanging rod is conveniently lifted.

[0049] In this embodiment, in order to better install the insulating porcelain bottle and limit the insulating porcelain bottle, an annular flange 111 is arranged on the upper end surface of the porcelain bottle support seat plate for limiting the lower end of the insulating porcelain bottle inside, and a hanging rod through hole 112 is arranged on the porcelain bottle support seat plate inside the arc-shaped flange, so that the lower end of the conductive hanging rod is connected with the cathode line hanging beam of the wet electric dust collector.

[0050] In this embodiment, in order to better cooperate with the mounting seat of the tower side wall, mounting through holes 113 are arranged at intervals on the periphery of the porcelain bottle support seat plate, and a pipe body 114 extending downward is arranged on the lower side of the porcelain bottle support seat plate and outside the hanging rod through hole, so as to extend into the mounting seat. The porcelain bottle support seat plate is connected with the lower end of the heat preservation cylinder through bolts. Flanges are arranged on the upper and lower ends of the heat preservation cylinder.

[0051] In this embodiment, a heat preservation layer 121 is arranged on the inner wall of the heat preservation cylinder, so as to ensure the heat preservation effect. A heater mounting hole 122 is arranged on the side wall of the heat preservation cylinder, so as to install the heating element (annular heater) of the insulating porcelain bottle, so as to further avoid the condensate water on the insulating porcelain bottle. A hot air inlet pipe 123 is arranged on the upper side wall of the heat preservation cylinder, so as to introduce hot air into the heat preservation cylinder. The hot air can pass through the insulating porcelain bottle and the mounting seat into the desulfurization tower, so as to prevent the condensate water on the insulating porcelain bottle. A temperature sensor 124 is further arranged on the heat preservation cylinder, so as to detect the temperature in the heat preservation cylinder. The periphery of the cylinder cover is detachably connected with the upper end of the heat preservation cylinder through bolts, so as to facilitate the dismounting of the heat preservation cylinder and the cylinder cover.

[0052] Reference Figures 1 to 12

[0053] A method for replacing an insulating porcelain bottle, comprising a wet electric heat preservation box, comprising the following steps:

[0054] (1) disconnect the wet electric dust collector, and remove the heat preservation cylinder 120 and the cylinder cover 130;

[0055] (2) pass the new insulating porcelain bottle 4 through the hanging chain 2 of the chain block hoist 1, and install it on the upper part of the hanging chain through the porcelain bottle hoisting fixing device;

[0056] (3) lower the chain block hoist hanging chain, make the hook 3 at the lower end of the hanging chain firmly connected with the conductive boom 160, then pull up the conductive boom 5-9 mm, since the height of the annular protrusion is usually about 4 mm, so that the conductive boom is lifted by 5-9 mm, and the lower end of the old insulating porcelain bottle can avoid the annular flange;

[0057] (4) remove the split porcelain bottle cover plate 150, and separate the left cover plate 151 and the right cover plate 152 from the conductive boom;

[0058] (5) install the baffle 6 on the upper side of the porcelain bottle support seat plate at the bottom of the old insulating porcelain bottle 5, so as to avoid the outflow of flue gas and avoid the porcelain chips falling into the boom through hole when the old insulating porcelain bottle is damaged; the baffle is composed of a semicircular left baffle and a right baffle, recesses for avoiding the conductive boom are arranged on the left baffle and the right baffle; then the old insulating porcelain bottle is damaged and removed, and the porcelain chips of the old insulating porcelain bottle are cleaned;

[0059] (6) lower the new insulating porcelain bottle and install it in place through the porcelain bottle hoisting fixing device, and remove the baffle before positioning;

[0060] (7) fold the left cover plate and the right cover plate into an integrated body to restore the original state and cover the upper end of the new insulating porcelain bottle, and lower the conductive boom to connect the conductive boom with the left cover plate and the right cover plate into an integrated body;

[0061] (8) separate the hook from the conductive boom, and finally install the heat preservation cylinder and the cylinder cover in place, that is, the replacement of the new insulating porcelain bottle is completed.

[0062] In the embodiment, the porcelain bottle hoisting fixing device comprises a split type supporting plate frame 210 composed of a left supporting plate 211 and a right supporting plate 212 with a flat bottom surface, and a connecting frame 220 for being installed on the hanging chain of the chain block hoist, a porcelain bottle positioning structure is arranged on the upper end surface of the split type supporting plate frame, so as to position the insulating porcelain bottle in the porcelain bottle positioning structure. An avoiding through opening 213 is arranged in the middle part of the split type supporting plate frame, and a hoisting rope or a hoisting belt 230 capable of being adjusted in length is connected to the peripheral part of the split type supporting plate frame, the upper end of the hoisting rope or the hoisting belt is connected with the connecting frame, so as to realize the lowering of the split type supporting plate frame through the elongation of the hoisting rope or the hoisting belt. Figures 6 to 12 .

[0063] In this embodiment, in order to separate the split supporting plate frame from the porcelain bottle after the porcelain bottle is lowered to the desired position, at least two transverse sliding grooves 214 are arranged in the right supporting plate, which are dovetail grooves. A transverse sliding rod 215 is arranged on the left supporting plate and extends into the transverse sliding groove, which is a dovetail rod. The left supporting plate and the right supporting plate are arranged with arc-shaped recesses on the surfaces in contact with each other to form an avoiding opening 213. Since the split supporting plate frame needs to bear the porcelain bottle during use, the left supporting plate 211 and the right supporting plate 212 will not automatically separate without external pulling force.

[0064] In this embodiment, in order to realize the positioning of the porcelain bottle and avoid the offset of the porcelain bottle during lowering, the porcelain bottle positioning structure is an annular protrusion 216. In another embodiment, the porcelain bottle positioning structure is composed of a plurality of convex columns 18 arranged at intervals in the circumferential direction, and the convex columns are at least four, so as to position the porcelain bottle through the convex columns.

[0065] In this embodiment, in order to be connected with the lifting rope or the lifting belt, a pair of lifting rings 217 for connecting with the lifting rope or the lifting belt are arranged on the two sides of the split supporting plate frame, and a pair of connecting rings 221 for connecting with the lifting rope or the lifting belt are arranged on the two sides of the connecting frame.

[0066] In this embodiment, in order to be better installed on the chain of the hand-operated hoist, the connecting frame includes a horizontal rod 222, the middle part of the horizontal rod is provided with a sleeve ring 223 for sleeving on the chain of the hand-operated hoist, and a bolt 224 for penetrating through the chain of the hand-operated hoist is arranged on the sleeve ring, so as to position the horizontal rod on one chain link (ring) of the chain of the hand-operated hoist through the bolt. In another embodiment, the connecting frame includes a transverse screw rod 225 for penetrating through the chain of the hand-operated hoist, and a pair of hand-tightening nuts 226 are screwed on the two sides of the transverse screw rod, which are arranged on the two sides of the chain of the hand-operated hoist. The transverse screw rod is locked on the chain link of the chain of the hand-operated hoist through the hand-tightening nuts. Connecting rings 227 for connecting with the lifting rope or the lifting belt are arranged on the two sides of the transverse screw rod.

[0067] In this embodiment, the lifting rope can be a nylon rope, which is provided with an adjusting buckle for length adjustment. The lifting rope can also be a steel wire rope which can be adjusted in length by stretching and retracting. The lifting belt can be a nylon belt body, which is provided with an adjusting buckle for length adjustment. The length adjustment is adjusted by manual adjustment.

[0068] In the step (2), the connecting frame is installed on the hanging chain of the chain hoist in advance, the new insulating porcelain bottle is placed on the split type supporting plate frame, and is positioned through the porcelain bottle positioning structure. Then the hanging chain of the chain hoist is passed through the new insulating porcelain bottle and the split type supporting plate frame, the split type supporting plate frame is connected with the connecting frame through the lifting rope or the lifting belt, the distance between the split type supporting plate frame and the lower end of the hanging chain of the chain hoist is greater than the height of the old insulating porcelain bottle, and the upper end of the new insulating porcelain bottle is abutted with the connecting frame through the contraction of the lifting belt or the lifting rope, so that the new insulating porcelain bottle is fixed. Since the lower end of the hanging chain of the chain hoist needs to be connected with the conductive boom, the hanging chain of the chain hoist cannot be lowered when the new insulating porcelain bottle is not installed in place.

[0069] In the step (6), the length of the lifting belt or the lifting rope is adjusted to realize the lowering of the split type supporting plate frame; or the lower end of the lifting rope or the lifting belt is connected with the lifting ring on the split type supporting plate frame through a live knot, the live knot is loosened when the split type supporting plate frame needs to be lowered, and the split type supporting plate frame is lowered through the cooperation of two workers to gradually lower the lifting rope or the lifting belt. When the split type supporting plate frame is lowered to the insulating porcelain bottle installation station, the lifting belt or the lifting rope is continuously lengthened by a certain length, so as to reserve a moving space for the left supporting plate and the right supporting plate. Then the worker lifts the left side of the new insulating porcelain bottle, and pulls out the left supporting plate outward; then the right side of the new insulating porcelain bottle is lifted to a certain height, and the right supporting plate is pulled out, so that the lower end of the new insulating porcelain bottle can be installed on the corresponding station.

[0070] The above only describes the preferred embodiments of the present application. According to the teaching of the present application, a person of ordinary skill in the art can design different forms of the wet electric heat preservation box and the insulating porcelain bottle replacement method without creative labor, and any equivalent change, modification, replacement and transformation made within the scope of the present application should be covered by the present application.

Claims

1. A method of replacing an insulator porcelain bottle comprising a wet electrical incubator, the wet electrical incubator comprising a porcelain bottle support shelf, characterized in that, The porcelain bottle support seat plate is provided with a heat preservation cylinder, the upper end of the heat preservation cylinder is provided with a cylinder cover, the porcelain bottle support seat plate is provided with an insulating porcelain bottle, the upper end of the insulating porcelain bottle is provided with a split type porcelain cover plate which is split into a left cover plate and a right cover plate, and the split type porcelain cover plate is provided with a conductive hanging rod which is detachably installed and penetrates through the porcelain bottle support seat plate; the split type porcelain cover plate comprises the left cover plate and the right cover plate which are combined to form a circular truncated cone, the end faces of the left cover plate and the right cover plate are provided with a lug respectively, and the two lugs on the same side are connected into an integrated whole through bolts; the upper end of the conductive hanging rod is provided with a connecting end which is located on the upper side of the split type porcelain cover plate, the periphery of the connecting end is provided with bolt holes at intervals, and the bolt holes are connected and fixed with bolt holes which are arranged on the end face of the split type porcelain cover plate; the upper end of the connecting end is provided with a lifting ring connecting hole; the method comprises the following steps: (1) the wet electric dust collector is powered off, and the heat preservation cylinder and the cylinder cover are removed; (2) the new insulating porcelain bottle is penetrated through the chain of the hand chain block and is installed on the upper part of the chain through the porcelain bottle hoisting fixing device; the porcelain bottle hoisting fixing device comprises a split type support plate frame which is composed of a left support plate and a right support plate with a flat bottom surface and a connecting frame which is used for being installed on the chain of the hand chain block, and the upper end face of the split type support plate frame is provided with a porcelain bottle positioning structure; the middle part of the split type support plate frame is provided with an avoiding through hole, the periphery of the split type support plate frame is connected with a telescopic adjustable lifting rope or a lifting belt, and the upper end of the lifting rope or the lifting belt is connected with the connecting frame; (3) the chain of the hand chain block is lowered, the hook at the lower end of the chain is connected with the conductive hanging rod firmly, and then the conductive hanging rod is pulled up by 5-9mm; (4) the split type porcelain cover plate is removed, and the left cover plate and the right cover plate are separated from the conductive hanging rod; (5) the baffle which is located on the upper side of the porcelain bottle support seat plate is installed on the bottom of the old insulating porcelain bottle, and then the old insulating porcelain bottle is removed in a destructive manner; (6) the new insulating porcelain bottle is lowered and installed in place through the porcelain bottle hoisting fixing device, and the baffle is removed before the new insulating porcelain bottle is installed in place; (7) the left cover plate and the right cover plate are combined into an integrated whole, and the conductive hanging rod is lowered, so that the conductive hanging rod is connected with the left cover plate and the right cover plate into an integrated whole; (8) the hook is separated from the conductive hanging rod, and the heat preservation cylinder and the cylinder cover are installed in place.

2. A method of replacing an insulator according to claim 1, wherein The lower end face of the split type porcelain cover plate is provided with a positioning recess which is used for the upper end of the insulating porcelain bottle to extend into, and the middle part of the split type porcelain cover plate is provided with an avoiding hole which is used for the conductive hanging rod to penetrate through.

3. A method according to claim 1 or 2, characterised in that, The upper end face of the porcelain bottle support seat plate is provided with an annular flange which is used for limiting the lower end of the insulating porcelain bottle on the inner side thereof, the porcelain bottle support seat plate is provided with a hanging rod through hole which is located in the annular flange, the periphery of the porcelain bottle support seat plate is provided with installation through holes at intervals, and the lower side of the porcelain bottle support seat plate and the outer side of the hanging rod through hole are provided with a pipe body which extends downward.

4. A method of replacing an insulator according to claim 1 or 2, wherein The inner wall of the heat preservation cylinder is provided with a heat preservation layer, the side wall of the heat preservation cylinder is provided with a heater installation hole, a hot air inlet pipe and a temperature sensor, and the periphery of the cylinder cover is detachably connected with the upper end of the heat preservation cylinder through bolts.

5. The method of claim 1, wherein At least two transverse sliding grooves are arranged in the right supporting plate, a transverse sliding rod is arranged on the left supporting plate and extends into the transverse sliding grooves, and arc-shaped recesses are arranged on the abutting surfaces of the left and right supporting plates to form avoiding through openings.

6. A method of replacing an insulator according to claim 1 or 5, wherein The connecting frame comprises a horizontal rod, a sleeve ring is arranged in the middle of the horizontal rod and is used for sleeving the lifting chain of the hand-operated hoist, and a latch is arranged on the sleeve ring and is used for penetrating the lifting chain of the hand-operated hoist; or the connecting frame comprises a horizontal screw rod which is used for penetrating the lifting chain of the hand-operated hoist, and a pair of hand nuts are screwed on the two sides of the horizontal screw rod and are located on the lifting chain of the hand-operated hoist.

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