A GIS tank in-tank pouring channel prying cutting device and a method for using the same

Abstract

This invention discloses a skid-mounted cutting device for the inlet runners of a GIS tank, comprising a main component including a support frame with a column fixedly connected to it and a horizontally arranged connecting arm connected to the column; a cutting component including a cutting fixing plate with a nozzle rod locking plate and a connecting arm locking plate fixedly connected to its front and rear ends respectively, allowing the nozzle rod to extend vertically into the GIS tank; the connecting arm locking plate is detachably connected to the connecting arm, the height of the nozzle rod is adjustable, and the position of the connecting arm locking plate on the connecting arm is adjustable; and a tank clamping component including a tank support base connected above the support frame, with the GIS tank detachably connected to the tank support base. This invention is simple to operate and use, allowing for flexible assembly and disassembly of various components and clamping of the GIS tank, facilitating the cutting and cleaning of all runners inside the GIS tank, and solving the technical problem of the inability to effectively cut and clean the runners of GIS tanks in the prior art.

Description

Technical Field

[0001] This invention relates to the field of casting technology, and in particular to a skid-mounted cutting device for the inlet gating system of a GIS tank and its usage method. Background Technology

[0002] Traditional high-voltage switches use oil insulation and employ tanks welded from steel plates. Due to the heavy weight, complex manufacturing process, large footprint, and high production costs of these tanks, and their applicability only to switches below 500KV, they have been gradually replaced by SF6 (sulfur hexafluoride) enclosed switchgear. SF6 enclosed switchgear, abbreviated as GIS, is a key piece of equipment in high-voltage and ultra-high-voltage power transmission and transformation projects. Its key component is the aluminum alloy tank with its enclosed casing. To ensure the manufacturing quality of the tank, low-pressure casting is currently the primary method for its production. Due to the varying combinations of switch types, the shapes and types of tanks used as enclosed shells differ significantly. For tanks with internal irregularities that hinder mold opening and core pulling, metal mold sand core casting is generally preferred, with the sprue, runner, and ingate placed within the sand core. This maximizes the pressure-feeding efficiency of low-pressure casting and reduces mold manufacturing difficulty, significantly improving casting quality and reducing production costs. However, a drawback is that after the casting is removed from the sand, the gating system remains inside the tank cavity, making it inconvenient and inefficient to clean using conventional cutting tools, severely limiting the application of metal mold sand core casting. Currently, production personnel have attempted new cutting methods, such as waterjet cutting, but the lack of suitable waterjet nozzle rod clamping devices and tank clamping devices prevents these operations. Therefore, to ensure the application of metal mold sand core casting in low-pressure casting, finding a convenient device and method for cutting and cleaning the gating system inside the tank is extremely urgent. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the cleaning of the above and / or existing GIS tank gating channels, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a skid-mounted cutting device for the inlet runner of a GIS tank, which solves the technical problem that the inability to effectively cut and clean the inlet runner of a GIS tank in the prior art. This invention is simple to operate and use, and can flexibly disassemble and assemble various components and clamp the GIS tank, making it convenient to cut and clean all the inlet runners inside the GIS tank.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a skid-mounted cutting device for the inlet gating system of a GIS tank, comprising,

[0007] The main component includes a support frame, on which a column is fixedly connected, and on which a horizontally arranged connecting arm is connected;

[0008] The cutting assembly includes a cutting fixing plate, with a nozzle rod locking plate and a connecting arm locking plate fixedly connected to its front and rear ends, respectively. The nozzle rod can extend vertically into the GIS tank. The connecting arm locking plate is detachably connected to the connecting arm. The height of the nozzle rod is adjustable, and the position of the connecting arm locking plate on the connecting arm is adjustable.

[0009] The tank clamping assembly includes a tank support base connected above a support frame, to which the GIS tank is detachably connected.

[0010] As a further improvement of the present invention, the upper end of the support frame is detachably connected to a base, and the tank support seat is rotatably connected to the base.

[0011] To further improve the reliability of the tank support when rotating, a circular boss is fixed on the upper side of the base. A central hole is opened in the center of the boss. An annular rotating groove is opened at the center downward end of the tank support. A support bearing is connected to the rotating groove of the tank support. The tank support is rotatably connected to the boss via the support bearing. The rotating support at the inner edge of the rotating groove is inserted into the boss along the outer edge of the central hole. The bottom of the tank support outside the rotating groove is in contact with the upper side of the base.

[0012] To further improve the reliability of the tank support seat installed on the base, an annular lower mounting groove is opened at the upward end of the base outside the central hole, and an annular upper mounting groove is opened on the downward side of the tank support seat. The base is connected to a plane bearing through the lower mounting groove, and the tank support seat is just sleeved on the upper part of the plane bearing through the upper mounting groove.

[0013] To further achieve the recycling of operating water and protect the environment, the support frame has an installation port at the downward end, and a water tank is movably connected to the installation port. A waste discharge hole is opened on the support frame above the installation port, and a through hole is opened in the center of the rotating support base. The through hole, the center hole and the waste discharge hole are interconnected, and the waste liquid flowing downward from the waste discharge hole enters the water tank.

[0014] To further facilitate the installation of the clamping seats, the tank clamping assembly also includes several clamping seats. The upper end of the tank support outside the rotating slot has several insertion slots that correspond one-to-one with the clamping seats. The clamping seat includes a horizontal part, and a clamping vertical part is fixed on the upper side of the horizontal part. An outer connecting part and an inner connecting part are fixed at intervals along the length of the horizontal part at the lower end of the horizontal part. The inner connecting part is inserted into the insertion slot, and the outer connecting part is just inserted into the outside of the rotating support. A connecting thread hole is opened on the outer connecting part.

[0015] To further achieve the clamping of the GIS tank, a screw is threadedly connected to the vertical part. A connecting sleeve is threadedly connected to one end of the screw relative to the GIS tank. A clamping head is threadedly connected to one end of the connecting sleeve relative to the GIS tank. The clamping head can fit perfectly against the outer circumference of the GIS tank.

[0016] To further facilitate the adjustment of the nozzle rod position, the nozzle rod locking plate has a nozzle rod locking hole that allows the nozzle rod to pass through. The nozzle rod locking hole has a first groove on the side away from the cutting fixing plate in the front-back direction. The nozzle rod locking plates on both sides of the first groove have first threaded holes. The connecting arm locking plate has a connecting arm locking hole that allows it to slide left and right along the connecting arm. The connecting arm locking hole has a second groove on the side away from the cutting fixing plate in the front-back direction. The connecting arm locking plates on both sides of the second groove have second threaded holes.

[0017] As a further improvement of the present invention, a support plate is fixed on the column, and an installation hole is opened on the connecting arm. The connecting arm slides down along the column through the installation hole, and the lower side of the connecting arm abuts against the upper side of the support plate. A locking cap is threadedly connected to the column on the upper side of the connecting arm, and the locking cap presses the connecting arm tightly against the support plate.

[0018] The method for using a skid-mounted cutting device for the inlet gating system of a GIS tank includes the following steps.

[0019] First, install the outer ring of the support bearing into the rotating groove under the tank support base. Then, install the plane bearing in the lower mounting groove. Place the tank support base flat. The tank support base is fitted into the boss through the support bearing, so that the boss is inserted into the inner ring of the support bearing. The upper mounting groove of the tank support base is just fitted onto the upper part of the plane bearing.

[0020] Secure the base to the support frame;

[0021] The connecting arm is fitted into the column through the mounting hole until it touches the support plate. The locking cover is screwed onto the column above the connecting arm so that the bottom of the locking cover and the upper side of the support plate make initial contact. The connecting arm is then rocked to an angle that does not obstruct the hoisting of the GIS tank.

[0022] Insert the connecting arm locking plate into the connecting arm through the connecting arm locking hole, push the cutting fixing plate to any position on the connecting arm, use the first locking screw to screw into the first threaded hole to reduce the first groove, lock the position of the cutting fixing plate, then insert the nozzle rod into the nozzle rod locking hole, use the second locking screw to screw into the second threaded hole to reduce the second groove, lock the position of the nozzle rod.

[0023] Using external hoisting equipment, the GIS tank is installed onto the tank support base. Visually, the center of the GIS is roughly coaxial with the center of the tank support base.

[0024] Based on the actual condition of the GIS tank, install the appropriate number of clamping seats on the tank support base. Insert the inner connecting part into the insertion groove, and use the connecting bolt to screw into the connecting threaded hole until it is tightened to the outer circumference of the tank support base. The clamping seat is fixed to the tank support base. Connect the screw thread to the clamping vertical part, and use the connecting sleeve to connect the clamping head and the screw, so that the arc surface of the clamping head faces the GIS tank. Continue to screw in the screw to clamp the GIS tank. Repeat the above operation for each clamping seat to fully clamp the GIS tank.

[0025] Manually drag the connecting arm to a suitable position above the GIS tank. Rotate the locking cap to press the connecting arm firmly onto the support plate, fixing the position of the connecting arm. Loosen the first locking screw, manually drag the cutting fixing plate to a suitable position, and tighten the first locking screw to fix the position of the cutting fixing plate on the connecting arm. Loosen the second locking screw, manually adjust the position of the nozzle rod in the height direction to a suitable working height, and tighten the second locking screw to fix the position of the nozzle rod.

[0026] Turn on the waterjet cutter switch. High-pressure water is sprayed from the nozzle rod. Manually and gently rotate the GIS tank to make it slowly rotate. The waterjet cuts the sprue inside the tank slowly. If you need to change the waterjet cutting radius, first turn off the waterjet cutter switch, then loosen the first locking screw, adjust the position of the cutting fixing plate on the connecting arm, and then tighten the first locking screw. Use the layer cutting method to cut the current layer. After the current layer is cut, turn off the waterjet cutter switch and use the waterjet to continue cutting the new layer of sprue inside the tank. Repeat the above operation to completely cut and clean all the sprue inside the tank. During the cutting operation, the wastewater sprayed from the nozzle rod enters the water tank through the through hole, center hole and waste discharge hole. After the cutting operation is completed, unscrew the screw in the opposite direction, loosen all the connecting bolts, remove the clamping seat, loosen the locking cover, drag the connecting arm to a position that will not affect the hoisting of the GIS tank, and use the hoisting equipment to lift the GIS tank from the tank support. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0028] Figure 1 This is the front view of the present invention.

[0029] Figure 2 This is the right view of the present invention.

[0030] Figure 3 This is a top view of the main component in this invention.

[0031] Figure 4 This is a top view of the connecting arm in this invention.

[0032] Figure 5 This is a top view of the locking cover in this invention.

[0033] Figure 6 The right view of the nozzle assembly after the nozzle rod is hidden.

[0034] Figure 7 This is a top view of the nozzle assembly with the nozzle rod hidden.

[0035] Figure 8 This is a cross-sectional view of the base in this invention.

[0036] Figure 9 This is a cross-sectional view of the tank support base in this invention.

[0037] Figure 10 This is a cross-sectional view of the tank clamping assembly in this invention.

[0038] Figure 11 This is a side view of the clamping seat in this invention.

[0039] In the diagram, 1 is the main component, 101 is the support frame, 101a is the base plate, 101a-1 is the lower connecting hole, 101a-2 is the waste discharge hole, 101b is the I-beam, 102 is the column, 102a is the support plate, 103 is the connecting arm, 103a is the mounting hole, 104 is the locking cover, 104a is the locking handle, 104b is the locking screw hole; 2 is the cutting component, 201 is the cutting fixing plate, 201a is the nozzle rod locking plate, 201a-1 is the first slot, 201a-2 is the nozzle rod locking hole, 201b is the connecting arm locking plate, 201b-1 is the second slot, 201b-2 is the connecting arm locking hole, 202 is the second locking screw, 203 is the first locking screw; 3 is the tank clamping component, 301 is the fixing bolt, 30 is the... 2. Base, 302a. Center hole, 302b. Lower sealing groove, 302c. Upper connecting hole, 302d. Lower mounting groove, 302e. Upper sealing groove, 303. Tank support, 303a. Upper mounting groove, 303b. Insertion groove, 303c. Rotating groove, 303d. Through hole, 304. Connecting bolt, 305. Clamping seat, 305a. External connecting part, 305a-1. Connecting threaded hole, 305b. Internal connecting part, 305c. Vertical clamping part, 305d. Horizontal part, 306. Screw, 307. Clamping head, 308. Connecting sleeve, 309. Connecting cap, 310. Surface bearing, 311. Upper sealing ring, 312. Lower sealing ring, 313. Support bearing, 314. Nozzle rod, 4. Roller, 5. Water tank, 6. GIS tank. Detailed Implementation

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0043] Example 1

[0044] Reference Figures 1 to 11 This is the first embodiment of the present invention. This embodiment provides a skid-mounted cutting device for the inlet channel of a GIS tank, which can efficiently cut and clean the inlet channels of each layer inside the GIS tank 6.

[0045] A skid-mounted cutting device for the inlet gating system of a GIS tank includes a main component 1, comprising a support frame 101 and a locking cover 104. The support frame 101 includes a base plate 101a, with two I-beams 101b spaced apart in the front-rear direction fixedly connected to the lower side of the base plate 101a. An installation opening is formed between the lower side of the base plate 101a and the two I-beams 101b, and a water tank 5 is movably connected to the installation opening. Several rotatable rollers 4 are arranged at the lower part of the water tank 5. A waste discharge hole 101a-2 is opened on the base plate 101a, and a through hole 303d is opened at the center of the rotating support base. The through hole 303d, the center hole 302a, and the waste discharge hole 101a-2 are interconnected, and the waste liquid flowing downward from the waste discharge hole 101a-2 enters the water tank 5. A column 102 is fixedly connected to the upper side of the base plate 101a, and a water supply is connected to the column 102. A horizontally mounted connecting arm 103 has a support plate 102a fixed on the column 102. The connecting arm 103 has a mounting hole 103a, which slides downward along the column 102 through the mounting hole 103a. The lower side of the connecting arm 103 abuts against the upper side of the support plate 102a. The column 102 on the upper side of the support plate 102a has an external thread. The locking cover 104 has a locking screw hole 104b in the center. The locking cover 104 is threaded onto the column 102 through the locking screw hole 104b. Several locking handles 104a are arranged on the outer side of the locking cover 104 to facilitate rotation of the locking cover 104. The locking cover 104 can press the connecting arm 103 onto the support plate 102a. A cutting component 2 is connected to the connecting arm 103. A tank clamping component 3 for clamping the GIS tank 6 is connected to the bottom plate 101a.

[0046] When installing the connecting arm 103, the connecting arm 103 slides down the column 102 through the mounting hole 103a to the upper side of the support plate 102a. The locking cover 104 is screwed onto the column 102 on the upper side of the connecting arm 103. The locking cover 104 is attached to the upper side of the connecting arm 103 so that the connecting arm 103 can be dragged. When the cutting assembly 2 is aligned with the tank and ready to cut, the connecting arm 103 needs to be locked. Continue to screw the locking cover 104 in so that the locking cover 104 presses the connecting arm 103 tightly onto the support plate 102a, and the position of the connecting arm 103 is fixed.

[0047] Preferably, the cutting assembly 2 includes a cutting fixing plate 201. The front and rear ends of the cutting fixing plate 201 are respectively fixedly connected to a nozzle rod locking plate 201a and a connecting arm locking plate 201b for connecting the nozzle rod 314. The nozzle rod 314 can extend vertically into the GIS tank 6. The connecting arm locking plate 201b is detachably connected to the connecting arm 103. The height of the nozzle rod 314 is adjustable, and the position of the connecting arm locking plate 201b on the connecting arm 103 is adjustable. The nozzle rod locking plate 201a has a nozzle rod 314 locking hole 201a-2 that allows the nozzle rod 314 to pass through. The locking hole 201a-2 of rod 314 has a first groove 201a-1 on the side away from the cutting fixing plate 201 in the front-back direction. The nozzle rod locking plate 201a on both sides of the first groove 201a-1 has a first threaded hole. The connecting arm locking plate 201b has a connecting arm locking hole 201b-2 that can slide along the connecting arm 103 left and right. The connecting arm locking hole 201b-2 has a second groove 201b-1 on the side away from the cutting fixing plate 201 in the front-back direction. The connecting arm locking plate 201b on both sides of the second groove 201b-1 has a second threaded hole.

[0048] Before cutting, first install the cutting fixing plate 201 onto the connecting arm 103. Slide the connecting arm locking plate 201b along the connecting arm 103 to any position. Use the first locking screw 203 to screw into the first threaded hole to tighten the first groove 201a-1, locking the cutting fixing plate 201 onto the connecting arm 103. Pass the nozzle rod 314 through the nozzle rod 314 locking hole 201a-2, ensuring that the position of the water jet cutter connected to the lower end of the nozzle rod 314 does not affect the GI. For hoisting the S-type tank 6, the second locking screw 202 is screwed into the second threaded hole to lock the second groove 201b-1, and the nozzle rod 314 is locked onto the nozzle rod locking plate 201a. After the GIS tank 6 is installed on the tank support 303, the connecting arm 103 is dragged to a suitable position so that the water jet cutter can be aligned with the inner cavity of the tank. The locking handle 104a is rotated so that the locking cover 104 is pressed onto the connecting arm 103 to fix the position of the connecting arm 103.

[0049] Preferably, the tank clamping assembly 3 includes a base 302 connected to the upper end of the support frame 101. A plurality of lower connecting holes 101a-1 are arranged on the base plate 101a, and a plurality of upper connecting holes 302c coaxial with the lower connecting holes 101a-1 are arranged on the base 302. A tank support seat 303 is rotatably connected to the base 302. A circular boss is fixed to the upper side of the base 302, and an upper sealing groove 302e is provided inside the boss. An upper sealing ring 311 is connected to the boss via the upper sealing groove 302e to prevent working water and water vapor from entering the rotating recess 303c of the tank support seat 303 during downward drainage, thus preventing damage to the support bearing 313 and the plane bearing 310. A lower sealing groove 302b is opened at the downward-facing end of the base 302, and a lower sealing ring 312 is connected to the base 302 via the lower sealing groove 302b, effectively preventing working water from flowing everywhere on the base plate 101a and affecting operation. Environment: A central hole 302a is opened in the center of the boss. An annular rotating groove 303c is opened at the downward-facing end of the tank support 303. A support bearing 313 is connected to the rotating groove 303c of the tank support 303. The tank support 303 is rotatably connected to the boss via the support bearing 313. The rotating support at the inner edge of the rotating groove 303c is inserted into the boss along the outer edge of the central hole 302a. The bottom of the tank support 303 outside the rotating groove 303c contacts the upper side of the base 302. An annular lower mounting groove 302d is opened at the upward-facing end of the base 302 outside the central hole 302a. An annular upper mounting groove 303a is opened on the downward-facing side of the tank support 303. A plane bearing 310 is connected to the base 302 via the lower mounting groove 302d. The tank support 303 is sleeved on the upper part of the plane bearing 310 via the upper mounting groove 303a.

[0050] When installing the tank clamping assembly 3, place the base 302 on the upper side of the base plate 101a, align the upper connecting hole 302c with the lower connecting hole 101a-1, and use the fixing bolt 301 to screw into the upper connecting hole 302c and the lower connecting hole 101a-1 to fix the base 302 to the upper side of the base plate 101a. Insert the flat bearing 310 into the lower mounting groove 302d, and insert the outer ring of the support bearing 313 into the tank support seat 303 along the outer edge of the rotating groove 303c. Align the rotating groove 303c with the boss, and the inner ring of the support bearing 313 slides down along the outer edge of the boss. The tank support seat 303 is inserted into the upper part of the flat bearing 310 through the upper mounting groove 303a, realizing the connection between the tank support seat 303, the base 302 and the base plate 101a. During cutting, the position of the runner cutting is adjusted by rotating the tank support seat 303 to facilitate the all-round cutting of each runner layer.

[0051] To further facilitate the installation of the clamping seats 305, the tank clamping assembly 3 also includes several clamping seats 305. Several insertion slots 303b, corresponding one-to-one with the clamping seats 305, are arranged on the upward-facing end of the tank support 303 outside the rotating slot 303c. Each clamping seat 305 includes a horizontal portion 305d, with a vertical clamping portion 305c fixed to its upper side. Several adjusting threaded holes spaced apart in the height direction are arranged on the vertical clamping portion 305c. The lower end of the horizontal portion 305d is fixed with holes spaced apart along the length of the horizontal portion 305d. An outer connecting part 305a and an inner connecting part 305b are separated. The inner connecting part 305b is inserted into the insertion groove 303b, while the outer connecting part 305a is inserted into the outside of the rotating support. The outer connecting part 305a has a threaded hole 305a-1. A screw 306 is also threadedly connected to the vertical part. A connecting sleeve 308 is threadedly connected to one end of the screw 306 relative to the GIS tank 6. A clamping head 307 is threadedly connected to one end of the connecting sleeve 308 relative to the GIS tank 6. The clamping head 307 can fit perfectly against the outer circumference of the GIS tank 6.

[0052] When installing the GIS tank 6, use external hoisting equipment to hoist the GIS tank 6 onto the upper side of the tank support 303, aligning the center of the GIS tank 6 with the center of the tank support 303. Install the clamping seat 305 onto the tank support 303, aligning the inner connecting part 305b with the insertion groove 303b, and inserting the inner connecting arm 103 into the insertion groove 303b. Simultaneously, the inner side of the outer connecting part 305a slides down along the outer edge of the tank support 303, so that the lower side of the horizontal part 305d fits against the upper side of the tank support 303. Use connecting bolts 304 to screw into the connecting threaded holes 305a-1 until they are tightened to secure the clamping seat 305 relative to the tank support 303. Screw a cap 309 onto the screw 306, according to the GIS tank... Select a suitable adjusting threaded hole for the height of tank 6, screw the screw 306 into the adjusting threaded hole, and screw the other cap 309 onto the screw 306. The screw 306, which passes through the clamping vertical part 305c, is threaded with a connecting sleeve 308. Screw the clamping head 307 into the end of the connecting sleeve 308 away from the screw 306. The inner edge of the clamping head 307 fits against the outer circumference of the GIS tank 6. Continue to screw the screw 306 in so that the clamping head 307 presses against the GIS tank 6. Screw the two caps 309 in respectively so that the two caps 309 abut against both sides of the clamping vertical part 305c, thereby fixing the GIS tank 6 relative to the tank support 303. When it is necessary to loosen the GIS tank 6, simply rotate the screw 306 in the opposite direction so that the clamping head 307 releases the GIS tank 6. The GIS tank 6 is easy to disassemble and assemble.

[0053] By combining the above components, it is easy to cut and clean the gating channels inside the GIS tank 6. The invention has a simple structure, low manufacturing cost, and the various parts can be flexibly assembled together. It is easy to operate during operation, the position of the nozzle rod 314 is easy to adjust, and the angle of the GIS tank 6 is easy to adjust, which can more effectively complete the task of cutting the gating channels inside the GIS tank 6. During the cutting process, the water sprayed out sequentially flows through the through hole 303d, the center hole 302a and the waste discharge hole 101a-2 into the water tank 5, avoiding the wastewater from flowing to the outside and polluting the environment, which is more environmentally friendly. When the cutting is completed and the wastewater is drained, the water tank 5 can be pulled out to drain the wastewater, and then the water tank 5 can be pushed into the installation port to realize the next wastewater recycling.

[0054] Example 2

[0055] Reference Figures 1 to 11 This is the second embodiment of the present invention. This embodiment provides a method for using a skid-mounted cutting device for the inlet channel of a GIS tank. The present invention is simple to assemble and can be flexibly installed together, and can further realize the cutting and cleaning of the inlet channels of each layer inside the GIS tank 6.

[0056] The method for using a skid-mounted cutting device for the inlet gating system of a GIS tank includes the following steps.

[0057] (1) Assembly of tank support 303: First, install the outer ring of the support bearing 313 into the rotating groove 303c below the tank support 303, install the upper sealing ring 311 into the upper sealing groove 302e, install the plane bearing 310 in the lower mounting groove 302d, lay the tank support 303 flat, and fit the tank support 303 into the boss through the support bearing 313 so that the boss is inserted into the inner ring of the support bearing 313. The upper mounting groove 303a of the tank support 303 is just fitted onto the upper part of the plane bearing 310.

[0058] (2) Install the lower sealing ring 312 into the lower sealing groove 302b on the base 302, align the upper connecting hole 302c on the base 302 with the corresponding lower connecting hole 101a-1, and use the fixing bolt 301 to screw into the upper connecting hole 302c and the lower connecting hole 101a-1 in sequence to fix the base plate 101a to the base plate 101a.

[0059] (3) The connecting arm 103 is fitted into the column 102 through the mounting hole 103a until it touches the support plate 102a. The locking cover 104 is screwed onto the column 102 above the connecting arm 103, so that the bottom of the locking cover 104 and the upper side of the support plate 102a make initial contact. The connecting arm 103 is then rocked to an angle that does not obstruct the hoisting of the GIS tank 6.

[0060] (4) Insert the connecting arm locking plate 201b into the connecting arm 103 through the connecting arm locking hole 201b-2, push the cutting fixing plate 201 to any position on the connecting arm 103, use the second locking screw 202 to screw into the second threaded hole to shrink the second groove 201b-1, lock the position of the cutting fixing plate 201, then insert the nozzle rod 314 into the nozzle rod 314 locking hole 201a-2, use the first locking screw 203 to screw into the first threaded hole to shrink the first groove 201a-1, lock the position of the nozzle rod 314;

[0061] (5) Use external hoisting equipment to install the GIS tank 6 onto the tank support 303, and visually align the center of the GIS tank support 303 with the center of the tank support 303.

[0062] (6) Based on the actual situation of the GIS tank 6, install a corresponding number of clamping seats 305 on the tank support 303. Insert the inner connecting part 305b into the insertion groove 303b. Use the connecting bolt 304 to screw into the connecting thread hole 305a-1 to the outer circle of the tank support 303 until it is tightened. The clamping seat 305 is fastened to the tank support 303. Thread the screw 306 to the clamping vertical part 305c. Use the connecting sleeve 308 to connect the clamping head 307 and the screw 306 together so that the arc surface on the clamping head 307 faces the GIS tank 6. Continue to screw in the screw 306 to clamp the GIS tank 6. Operate each clamping seat 305 in the same way to fully clamp the GIS tank 6.

[0063] (7) Manually drag the connecting arm 103 to a suitable position above the GIS tank 6, rotate the locking cap 104 to press the connecting arm 103 onto the support plate 102a, fix the position of the connecting arm 103, loosen the first locking screw 203, manually drag the cutting fixing plate 201 to a suitable position and lock the first locking screw 203 to fix the position of the cutting fixing plate 201 on the connecting arm 103, loosen the second locking screw 202, manually adjust the position of the nozzle rod 314 in the height direction to make the nozzle rod 314 at a suitable working height and lock the second locking screw 202 to fix the position of the nozzle rod 314.

[0064] (8) Turn on the water jet cutter switch. High-pressure water is sprayed out from the nozzle rod 314. Manually and gently rotate the GIS tank 6 to make the GIS tank 6 rotate slowly. The water jet slowly cuts the inlet channel of the tank. If it is necessary to change the water jet cutting radius, first turn off the water jet cutter switch, then loosen the first locking screw 203, adjust the position of the cutting fixing plate 201 on the connecting arm 103, and then tighten the first locking screw 203. Use the layer cutting method to cut the current layer. After the current layer is cut, turn off the water jet cutter switch and use the water jet to continue cutting a new layer of the tank. By repeating the above operations on the inner runner, all runners inside the tank can be completely cut and cleaned. During the cutting process, the wastewater sprayed from the nozzle rod 314 enters the water tank 5 through the through hole 303d, the center hole 302a, and the waste discharge hole 101a-2. After the cutting operation is completed, unscrew the screw 306 in the reverse direction, loosen all connecting bolts 304, remove the clamping seat 305, loosen the locking cover 104, drag the connecting arm 103 to a position that will not affect the hoisting of the GIS tank 6, and use the hoisting equipment to lift the GIS tank 6 from the tank support 303.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A GIS tank body in-tank sprue pry-off cutting device, characterized by: Comprising, The main body assembly comprises a support frame, a vertical column fixedly connected to the support frame, and a horizontally arranged connecting arm connected to the vertical column; The cutting assembly comprises a cutting fixed plate, a nozzle rod locking plate and a connecting arm locking plate fixedly connected to the front and rear ends of the cutting fixed plate respectively, the nozzle rod being vertically extendable into a GIS tank, the connecting arm locking plate being detachably connected to the connecting arm, the height of the nozzle rod being adjustable, and the position of the connecting arm locking plate on the connecting arm being adjustable; The tank clamping assembly comprises a tank support seat connected above the support frame, a GIS tank being detachably connected to the tank support seat, an upper end of the support frame being detachably connected to a base, the tank support seat being rotatably connected to the base, an upper side of the base being fixedly connected to a circular boss, a central hole being formed in the center of the boss, a ring-shaped rotating recess being formed in the downwardly directed end of the tank support seat, a support bearing being connected to the rotating recess of the tank support seat, the tank support seat being rotatably connected to the boss via the support bearing, the rotating support seat at the inner edge of the rotating recess being inserted into the boss along the outer edge of the central hole, the bottom of the tank support seat outside the rotating recess being in contact with the upper side of the base, a ring-shaped lower mounting recess being formed in the upwardly directed end of the base outside the central hole, a ring-shaped upper mounting recess being formed in the downwardly directed side of the tank support seat, the base being connected to a plane bearing via the lower mounting recess, the tank support seat being just sleeved on the upper part of the plane bearing via the upper mounting recess, a mounting port being formed in the downwardly directed end of the support frame, a water tank being movably connected to the mounting port, a waste discharge hole being formed in the upper side of the support frame at the mounting port, a through hole being formed in the center of the rotating support seat, the through hole, the central hole and the waste discharge hole being in communication with each other, waste liquid flowing out of the waste discharge hole into the water tank; The tank clamping assembly further comprises a plurality of clamping seats, the upwardly directed end of the tank support seat outside the rotating recess being arranged with a plurality of insertion recesses corresponding to the clamping seats one by one, the clamping seat comprising a horizontal part, a clamping vertical part being fixedly connected to the upper side of the horizontal part, an outer connecting part and an inner connecting part being fixedly connected to the lower end of the horizontal part and being arranged at intervals along the length direction of the horizontal part, the inner connecting part being inserted into the insertion recess, and the outer connecting part being just inserted into the outer side of the rotating support seat, a connecting thread hole being formed in the outer connecting part.

2. The GIS tank in-gated prying cutting device of claim 1, wherein: A screw rod is further threadedly connected to the vertical part, a connecting sleeve being threadedly connected to one end of the screw rod relative to the GIS tank, a clamping head being threadedly connected to one end of the connecting sleeve relative to the GIS tank, the clamping head being just able to fit the outer periphery of the GIS tank.

3. The in-cast-pour channel pry-off cutting device of claim 2, wherein: A nozzle rod locking hole is formed in the nozzle rod locking plate, the nozzle rod locking hole being formed with a first slot on the side away from the cutting fixed plate in the front-rear direction, first thread holes being formed in the nozzle rod locking plate on the front-rear sides of the first slot, a connecting arm locking hole being formed in the connecting arm locking plate, the connecting arm locking hole being just able to slide along the left-right direction of the connecting arm, a second slot being formed in the connecting arm locking hole on the side away from the cutting fixed plate in the front-rear direction, and second thread holes being formed in the connecting arm locking plate on the upper-lower sides of the second slot.

4. The in-cast-pour channel pry-off cutting device of claim 3, wherein: The support plate is fixed on the column, the mounting hole is formed in the connecting arm, the connecting arm is just slid along the column through the mounting hole, the lower side of the connecting arm abuts against the upper side of the support plate, and the locking cover is threadedly connected to the column above the upper side of the connecting arm and presses the connecting arm on the support plate.

5. A method of using the in-tank sprue cutting device of claim 4, characterized in that: The method comprises the following steps, First, the outer ring of the support bearing is installed into the rotating groove under the tank support seat, the plain bearing is installed into the lower installation groove, the tank support seat is laid flat, the tank support seat is sleeved with the boss through the support bearing, the boss is inserted into the inner ring of the support bearing, and the upper installation groove of the tank support seat is just sleeved with the upper part of the plain bearing; The base is fixedly connected to the support frame; The connecting arm is just sleeved with the column through the mounting hole until abutting against the support plate, the locking cover is screwed onto the column above the connecting arm, the bottom of the locking cover and the upper side of the support plate are preliminarily contacted, and the connecting arm is shaken to an angle without hindering hoisting of the GIS tank; The connecting arm locking plate is sleeved with the connecting arm through the connecting arm locking hole, the cutting fixing plate is pushed to an arbitrary position on the connecting arm, the first locking screw is screwed into the first threaded hole to reduce the first slot, the position of the cutting fixing plate is locked, the nozzle rod is inserted into the nozzle rod locking hole, the second locking screw is screwed into the second threaded hole to reduce the second slot, and the position of the nozzle rod is locked; The GIS tank is installed on the tank support seat by using external hoisting equipment, and the center of the GIS tank is roughly coaxial with the center of the tank support seat by visual observation; According to the actual situation of the GIS tank, a corresponding number of clamping seats are installed on the tank support seat, the inner connecting part is inserted into the plug-in groove, the connecting bolt is screwed into the connecting threaded hole to the outer circular surface of the tank support seat until being screwed tightly, the clamping seat is fastened to the tank support seat, the screw rod is threadedly connected to the clamping vertical part, the clamping head and the screw rod are connected by using the connecting sleeve, the arc surface on the clamping head faces the GIS tank, the screw rod continues to be screwed to clamp the GIS tank, and each clamping seat is sequentially operated as above, and the GIS tank is fully clamped; The connecting arm is manually dragged to a suitable position above the GIS tank, the locking cover is rotated to press the connecting arm on the support plate, the position of the connecting arm is fixed, the first locking screw is loosened, the cutting fixing plate is manually dragged to a suitable position and locked by the first locking screw, the position of the cutting fixing plate on the connecting arm is fixed, the second locking screw is loosened, the position of the nozzle rod in the height direction is manually adjusted, the nozzle rod is at a suitable working height and locked by the second locking screw, and the position of the nozzle rod is fixed. Open the switch of the water jet cutter, high pressure water is sprayed from the nozzle rod, manually rotate the GIS tank body, the water jet slowly cuts the runner, if the cutting radius needs to be changed, first close the switch of the water jet cutter, then loosen the first locking screw, adjust the position of the cutting fixed plate on the connecting arm, then lock the first locking screw, adopt the layered cutting method, cut the current layer, close the switch of the water jet cutter, continue to cut the new layer of the runner with the water jet, repeat the above operation, and all the runners in the tank can be completely cut and cleaned. During the cutting work, the working waste water sprayed from the nozzle rod enters the water tank through the through hole, the center hole and the waste discharge hole, after the cutting work is completed, the screw rod is rotated in the reverse direction, the connecting bolts are loosened, the clamping seat is removed, the locking cover is loosened, the connecting arm is dragged to a position that does not affect the hoisting of the GIS tank body, and the GIS tank body is lifted from the tank body support seat by using hoisting equipment.

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