Pickling device for crator of end socket of gas storage tank

Abstract

The invention relates to the technical field of gas storage tank end socket crator pickling, and discloses a gas storage tank end socket crator pickling device which comprises a bottom plate, side mounting frames are fixedly connected to the two sides of the bottom plate correspondingly, and a supporting assembly for supporting a gas storage tank is arranged at the top of the bottom plate; a driving assembly for driving the gas storage tank to rotate is arranged at the position, located in the supporting assembly, of the top of the bottom plate, the tops of the two side mounting frames are fixedly connected with water collecting tanks, and the water collecting tanks are provided with groove holes for avoiding a gas storage tank end socket. Through cooperative use of the pickling assembly and the automatic liquid leakage mechanism, the pickling solution is automatically smeared, when the pickling assembly is not used, the pickling assembly can achieve avoidance, the pickling solution smeared at the welding scar position of the gas storage tank end socket can be washed through the cleaning assembly, and then the pickling assembly is matched with rapid rotation of a brush, so that the welding scar position of the gas storage tank end socket is cleaned. Therefore, the water flow is assisted to carry out rapid and sufficient cleaning operation.

Description

Technical Field

[0001] The present invention relates to the technical field of pickling of welding scars on the head of a gas storage tank, and specifically to a pickling device for welding scars on the head of a gas storage tank. Background Art

[0002] In the manufacturing process of a gas storage tank, the welding of the head is a key link. However, the welding scars left after welding will have many adverse effects on the performance and appearance of the gas storage tank. The existence of the welding scars destroys the flatness and smoothness of the surface of the gas storage tank. For application scenarios with high requirements for appearance, such as gas storage tanks in the food and pharmaceutical industries, this obviously cannot meet the requirements.

[0003] To solve the above problems, pickling has become a common method for treating welding scars on the head of a gas storage tank. However, there are still the following problems in the implementation of this method:

[0004] 1. Traditional pickling methods are mostly manual operations, using pickling solutions to smear the welding scars. When manually smearing the pickling solution, the labor intensity of workers is high, and it is difficult to ensure the uniformity of the smearing thickness and time, resulting in uneven pickling effects.

[0005] 2. When smearing the welding scar positions on the head of a large gas storage tank, the efficiency of manual operation is extremely low. Not only is it necessary to rely on ladders, etc., but subsequent water washing operations are also required, further increasing the difficulty and intensity of pickling and cleaning. Summary of the Invention

[0006] Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the present invention provides a pickling device for welding scars on the head of a gas storage tank, mainly to solve the problems that traditional pickling methods are mostly manual operations, using pickling solutions to smear the welding scars. When manually smearing the pickling solution, the labor intensity of workers is high, and it is difficult to ensure the uniformity of the smearing thickness and time, resulting in uneven pickling effects. When smearing the welding scar positions on the head of a large gas storage tank, the efficiency of manual operation is extremely low. Not only is it necessary to rely on ladders, etc., but subsequent water washing operations are also required, further increasing the difficulty and intensity of pickling and cleaning.

[0008] Technical Solutions

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] An acid pickling device for the weld scar of a gas storage tank head, comprising a bottom plate. Both sides of the bottom plate are fixedly connected with side mounting frames. A support assembly for supporting the gas storage tank is arranged on the top of the bottom plate. A driving assembly for driving the gas storage tank to rotate is arranged at a position inside the support assembly on the top of the bottom plate. Water collecting tanks are fixedly connected to the tops of both side mounting frames. The water collecting tanks are provided with slot holes for avoiding the gas storage tank head. Acid pickling assemblies for performing acid pickling operations on the weld scar positions of the gas storage tank head are arranged on both sides of the top of each water collecting tank. Cleaning assemblies for performing water washing operations on the weld scar positions of the gas storage tank head after acid pickling are arranged on the tops of both side mounting frames.

[0011] As a further scheme of the present invention, the acid pickling assembly includes a mounting bracket fixedly connected to the top of the water collecting tank. One side of the mounting bracket is slidably connected with a brushing slide frame through a first guiding rod. One end of the brushing slide frame is rotatably connected with a brushing wool roller. A longitudinal driving cylinder for moving the brushing slide frame along the first guiding rod is arranged on one side of the mounting bracket. A solution box is fixedly connected to the top of the brushing slide frame. An automatic liquid leakage mechanism for rolling and smearing the brushing wool roller is arranged inside the solution box.

[0012] As a further scheme of the present invention, the automatic liquid leakage mechanism includes a leakage slot opened at the bottom of the solution box, and the leakage slot is in contact with the brushing wool roller. Two second guiding rods are fixedly connected inside the solution box. A blocking plate for blocking the leakage slot is slidably connected between the two second guiding rods. A limiting frame for blocking the blocking plate is fixedly connected to one side of the mounting bracket. A tension spring is fixedly connected between the limiting frame and the blocking plate.

[0013] As a further scheme of the present invention, the cleaning assembly includes a water spraying pipe fixedly connected to both sides of the water collecting tank. One end of the water spraying pipe penetrates through the water collecting tank. The other end of the water spraying pipe is aligned with the weld scar position of the gas storage tank head. A drain valve is arranged at a position close to the bottom end on one side of the water collecting tank.

[0014] As a further scheme of the present invention, the cleaning assembly further includes a plurality of transverse guide rails fixedly connected to the top of the side mounting frame. A transverse slide frame is slidably connected between the plurality of transverse guide rails through a slide table. Two mounting bodies are fixedly connected to one side of the transverse slide frame. Servo motors are fixedly connected inside both mounting bodies. One end of the output shaft of the servo motor passes through the mounting body and is fixedly connected with a brush. A through groove for avoiding the brush is opened on one side of the water collecting tank. A transverse driving cylinder for driving the transverse slide frame to move horizontally along the transverse guide rail is arranged on the outer wall of one side of the water collecting tank.

[0015] As a further scheme of the present invention, the diameter of the through groove is smaller than the diameter of the brush, and the brush is located below the water spraying pipe.

[0016] As a further solution of the present invention, the support assembly includes a plurality of support frames fixedly connected to the top of the bottom plate. Fixed angle brackets are fixedly connected inside the plurality of support frames. Two support rollers in contact with the gas storage tank body are rotatably connected inside the fixed angle brackets through bearings.

[0017] As a further solution of the present invention, the driving assembly includes two bottom mounting frames fixedly connected to the top of the bottom plate. Driving rollers are rotatably connected inside the two bottom mounting frames through bearings. The two driving rollers are fixedly connected by a connecting shaft. A driven pulley is fixedly connected to one side of the connecting shaft. A driving reduction motor is fixedly connected to the top of the bottom plate. One end of the output shaft of the driving reduction motor is fixedly connected with a driving pulley that is belt-driven with the driven pulley.

[0018] As a further solution of the present invention, friction sleeves are bonded to the circumferential outer sides of the two driving rollers. The friction sleeves are preferably rubber sleeves.

[0019] Beneficial effects

[0020] Compared with the prior art, the present invention provides an acid pickling device for the weld scar of the gas storage tank head, which has the following beneficial effects:

[0021] 1. The present invention effectively supports the gas storage tank through the support chamber formed by a plurality of support rollers, and drives the gas storage tank located on the plurality of support rollers to rotate by means of the driving assembly, so as to facilitate subsequent acid pickling and flushing operations.

[0022] 2. The present invention bonds a rubber sleeve to the circumferential outer side of the driving roller, so that the friction force between the driving roller and the gas storage tank is effectively increased through the rubber sleeve, thereby realizing the effective rotation of the gas storage tank.

[0023] 3. The present invention realizes the automatic application of the acid pickling solution through the cooperation of the acid pickling assembly and the automatic liquid leakage mechanism, and the acid pickling assembly can avoid displacement when not in use.

[0024] 4. The present invention can flush the acid pickling solution applied to the weld scar position of the gas storage tank head through the cleaning assembly, and then cooperate with the rapid rotation of the brush, so as to realize the rapid and thorough cleaning operation assisted by the water flow.

[0025] 5. The present invention makes the diameter of the through groove smaller than the diameter of the brush, so that the water splashing during the rotary cleaning of the brush can be effectively reduced.

[0026] 6. After the cleaning is completed, when the end of the piston rod of the horizontal driving cylinder shortens, it drives the horizontal sliding frame to move reversely along the horizontal guide rail to reset. This position is the avoidance state during the acid pickling of the weld scar of the gas storage tank head, and the cooperation of each process is tight. Description of the drawings

[0027] Figure 1 The front-side three-dimensional structure schematic diagram of a pickling device for weld scars on the head of a gas storage tank proposed by the present invention;

[0028] Figure 2 The rear-side three-dimensional structure schematic diagram of a pickling device for weld scars on the head of a gas storage tank proposed by the present invention;

[0029] Figure 3 The structure schematic diagram of the support component and the drive component of a pickling device for weld scars on the head of a gas storage tank proposed by the present invention;

[0030] Figure 4 The structure schematic diagram of the cleaning component of a pickling device for weld scars on the head of a gas storage tank proposed by the present invention;

[0031] Figure 5 The sectional structure schematic diagram of the water collecting tank of a pickling device for weld scars on the head of a gas storage tank proposed by the present invention;

[0032] Figure 6 The structure schematic diagram of the pickling component of a pickling device for weld scars on the head of a gas storage tank proposed by the present invention;

[0033] Figure 7 The Figure 6 partial sectional structure schematic diagram of a pickling device for weld scars on the head of a gas storage tank proposed by the present invention.

[0034] In the figure: 1, base plate; 2, support component; 3, cleaning component; 4, drive component; 5, pickling component; 6, side mounting frame;

[0035] 201, support frame; 202, fixed angle bracket; 203, support roller;

[0036] 301, water collecting tank; 302, drain valve; 303, transverse guide rail; 304, transverse sliding frame; 305, transverse driving cylinder; 306, mounting frame body; 307, servo motor; 308, brush; 309, through groove; 310, water spraying pipe;

[0037] 401, driving reduction motor; 402, driving belt pulley; 403, driving roller; 404, driven belt pulley; 405, connecting shaft; 406, bottom mounting frame;

[0038] 501, brushing wool roller; 502, brushing sliding frame; 503, mounting bracket; 504, longitudinal driving cylinder; 505, guide rod 1; 506, limiting frame; 507, tension spring; 508, solution box; 509, guide rod 2; 510, baffle plate; 511, leak gap. Detailed implementation manners

[0039] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] The serial numbers assigned to the components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0041] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0042] Refer to Figures 1-7 , an acid pickling device for the weld scar of a gas storage tank head, comprising a bottom plate 1, side mounting frames 6 are welded on both sides of the bottom plate 1, a support assembly 2 for supporting the gas storage tank is provided on the top of the bottom plate 1, a driving assembly 4 for driving the gas storage tank to rotate is provided at a position inside the support assembly 2 on the top of the bottom plate 1, water collecting tanks 301 are fixed to the tops of the two side mounting frames 6 by bolts, the water collecting tanks 301 are provided with slot holes for avoiding the gas storage tank head, acid pickling assemblies 5 for performing acid pickling operations on the weld scar positions of the gas storage tank head are provided on both sides of the tops of the two water collecting tanks 301, and cleaning assemblies 3 for performing water washing operations on the weld scar positions of the gas storage tank head after acid pickling are provided on the tops of the two side mounting frames 6. First, the gas storage tank is hoisted into the support assembly 2 and supported by the support assembly 2, and the gas storage tank is in contact with the driving assembly 4.

[0043] In the present invention, the pickling assembly 5 includes a mounting bracket 503 fixed to the top of the water collecting tank 301 by bolts. One side of the mounting bracket 503 is slidably connected with a brushing carriage 502 through a first guide rod 505. One end of the brushing carriage 502 is rotatably connected with a brushing roller 501. A longitudinal driving cylinder 504 for moving the brushing carriage 502 along the first guide rod 505 is provided on one side of the mounting bracket 503. A solution box 508 is fixed to the top of the brushing carriage 502 by bolts. An automatic liquid leakage mechanism for roll-brushing and applying the brushing roller 501 is provided inside the solution box 508. The automatic liquid leakage mechanism includes a leakage slot 511 opened at the bottom of the solution box 508, and the leakage slot 511 is in contact with the brushing roller 501. Two second guide rods 509 are fixed to the inside of the solution box 508 by bolts. A blocking plate 510 for blocking the leakage slot 511 is slidably connected between the two second guide rods 509. A limiting frame 506 for blocking the blocking plate 510 is fixed to one side of the mounting bracket 503 by bolts. A tension spring 507 is fixed between the limiting frame 506 and the blocking plate 510 by bolts. During use, first, the longitudinal driving cylinder 504 is started. The longitudinal driving cylinder 504 extends and drives the brushing carriage 502 to move inward through the first guide rod 505 until the brushing roller 501 provided at the end of the brushing carriage 502 contacts the welded scar position of the gas storage tank head. While the brushing carriage 502 is moving, the tension spring 507 applies a pulling force to the blocking plate 510. At this time, the blocking plate 510 moves rightward along the second guide rod 509 until it contacts the side of the solution box 508 and is blocked. At this time, the leakage slot 511 is released from the blocked state, and the pickling solution inside the solution box 508 flows through the leakage slot 511 onto the brushing roller 501. Then, the gas storage tank is rotated by the driving assembly 4. At this time, the brushing roller 501 rotates under the action of friction and applies the pickling solution to the welded scar position of the gas storage tank head. After the application is completed, the longitudinal driving cylinder 504 shortens and drives the brushing carriage 502 to move rightward to reset. At this time, under the action of the tension spring 507 and the limiting frame 506, the blocking plate 510 also moves leftward to reset and re-blocks the leakage slot 511, thereby realizing automatic application of the pickling solution, and when not in use, the pickling assembly 5 can be retracted to avoid interference.

[0044] In the present invention, the cleaning assembly 3 includes spray pipes 310 fixed to both sides of the water collection tank 301 by bolts. One end of the spray pipe 310 penetrates through the water collection tank 301, and the other end of the spray pipe 310 is aligned with the position of the weld scar on the head of the gas storage tank. A drain valve 302 is provided on one side of the water collection tank 301 near the bottom end. The cleaning assembly 3 further includes a plurality of transverse guide rails 303 fixed to the top of the side mounting frame 6 by bolts. A transverse sliding frame 304 is slidably connected between the plurality of transverse guide rails 303 through a sliding table. Two mounting frames 306 are fixed to one side of the transverse sliding frame 304 by bolts. Servo motors 307 are fixed to the interiors of the two mounting frames 306 by bolts. One end of the output shaft of the servo motor 307 passes through the mounting frame 306 and a brush 308 is fixed by bolts. A through groove 309 for avoiding the brush 308 is formed on one side of the water collection tank 301. A transverse driving cylinder 305 for driving the transverse sliding frame 304 to move horizontally along the transverse guide rail 303 is provided on the outer wall of one side of the water collection tank 301. During water washing, the spray pipe 310 is connected to an external water pipe. Then, the water in the external water pipe is sprayed through the spray pipe 310 at the position of the weld scar on the head of the gas storage tank, and the pickling solution applied at the position of the weld scar on the head of the gas storage tank is rinsed. However, relying solely on water flow rinsing, the pickling solution applied at the position of the weld scar on the head of the gas storage tank is likely to be incompletely cleaned. Therefore, the transverse driving cylinder 305 is activated. One end of the piston rod of the transverse driving cylinder 305 extends and drives the transverse sliding frame 304 to move towards the water collection tank 301 along the transverse guide rail 303 until the brush 308 is inserted into the through groove 309 and contacts the position of the weld scar on the head of the gas storage tank. Then, the servo motor 307 is activated. The servo motor 307 rotates to drive the brush 308 to rotate rapidly, and assists the water flow in performing a fast and thorough cleaning operation.

[0045] In the present invention, the diameter of the through groove 309 is smaller than the diameter of the brush 308, and the brush 308 is located below the spray pipe 310. In this way, water splashing during the rotary cleaning of the brush 308 can be effectively reduced.

[0046] In the present invention, the support assembly 2 includes a plurality of support frames 201 fixed to the top of the bottom plate 1 by bolts. Fixed angle brackets 202 are fixed to the interiors of the plurality of support frames 201 by bolts. Two support rollers 203 in contact with the tank body of the gas storage tank are rotatably connected to the interiors of the fixed angle brackets 202 through bearings. Thus, the gas storage tank is effectively supported by the support chamber formed by the plurality of support rollers 203.

[0047] In the present invention, the driving assembly 4 includes two bottom mounting brackets 406 fixedly bolted to the top of the bottom plate 1. Inside each of the two bottom mounting brackets 406, a driving roller 403 is rotatably connected through a bearing. The two driving rollers 403 are fixedly connected by a connecting shaft 405. On one side of the connecting shaft 405, a driven pulley 404 is fixedly bolted. On the top of the bottom plate 1, a driving reduction motor 401 is fixedly bolted. One end of the output shaft of the driving reduction motor 401 is fixedly bolted with a driving pulley 402 that is belt-drivenly connected to the driven pulley 404. On the circumferential outer sides of the two driving rollers 403, friction sleeves are adhered, and the friction sleeves are preferably rubber sleeves. By starting the driving reduction motor 401, the driving reduction motor 401 rotates to drive the driving pulley 402 to drive the connecting shaft 405 to rotate through the driven pulley 404. The rotation of the connecting shaft 405 drives the two driving rollers 403 to rotate synchronously, and the friction between the driving rollers 403 and the gas storage tank is effectively increased through the rubber sleeves, thereby realizing the self-rotation of the gas storage tank, so as to facilitate subsequent pickling and rinsing operations.

[0048] When the present invention is in use, it is divided into the following steps:

[0049] S1: First, hoist the gas storage tank into the support assembly 2, and effectively support the gas storage tank through the support chamber formed by multiple support rollers 203;

[0050] S2: Then start the longitudinal driving cylinder 504. The longitudinal driving cylinder 504 extends and drives the brushing carriage 502 to move inward through the guide rod 505 until the brushing roller 501 provided at the end of the brushing carriage 502 contacts the position of the weld scar of the gas storage tank head. While the brushing carriage 502 is moving, the tension spring 507 applies a pulling force to the blocking plate 510. At this time, the blocking plate 510 moves rightward along the guide rod 509 until it contacts the side of the solution box 508 and is blocked. At this time, the leak slot 511 is released from the blocked state, and the pickling solution inside the solution box 508 flows through the leak slot 511 onto the brushing roller 501;

[0051] S3: At this time, by starting the driving reduction motor 401, the driving reduction motor 401 rotates to drive the driving pulley 402 to drive the connecting shaft 405 to rotate through the driven pulley 404. The rotation of the connecting shaft 405 drives the two driving rollers 403 to rotate synchronously, and the friction between the driving rollers 403 and the gas storage tank is effectively increased through the rubber sleeves, thereby realizing the self-rotation of the gas storage tank;

[0052] S4: Meanwhile, the brushing roller 501 rotates under the action of friction and applies pickling solution to the position of the weld scar on the head of the gas storage tank. After the application is completed, the longitudinal driving cylinder 504 shortens to drive the brushing carriage 502 to move to the right and reset. At this time, under the action of the tension spring 507 and the limit bracket 506, the blocking plate 510 also moves to the left and resets to block the leak slot 511 again, thus realizing automatic pickling solution application. And when not in use, the pickling component 5 can be retracted;

[0053] S5: After waiting for a period of time, when the pickling solution at the weld scar position has reacted, it is necessary to wash the residues. At this time, the water spray pipe 310 is connected to an external water pipe, and then the water in the external water pipe is sprayed through the water spray pipe 310 at the position of the weld scar on the head of the gas storage tank to wash the pickling solution applied at the position of the weld scar on the head of the gas storage tank;

[0054] S6: Then start the lateral driving cylinder 305. One end of the piston rod of the lateral driving cylinder 305 extends to drive the lateral carriage 304 to move along the lateral guide rail 303 towards the water collecting tank 301 until the brush 308 is inserted into the through slot 309 and contacts the position of the weld scar on the head of the gas storage tank. Then start the servo motor 307. The servo motor 307 rotates to drive the brush 308 to rotate rapidly and assist the water flow to perform a fast and thorough cleaning operation, and the cleaning water can be collected by the water collecting tank 301;

[0055] S7: After the cleaning is completed, one end of the piston rod of the lateral driving cylinder 305 shortens to drive the lateral carriage 304 to move in the reverse direction along the lateral guide rail 303 and reset. This position is the retracted state during the pickling of the weld scar on the head of the gas storage tank.

[0056] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0057] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An acid pickling device for the welding scar of a gas storage tank head, comprising a bottom plate (1), and both sides of the bottom plate (1) are fixedly connected with side mounting frames (6), characterized in that, At the top of the bottom plate (1), there is a support assembly (2) for supporting the gas storage tank. At a position inside the support assembly (2) on the top of the bottom plate (1), there is a drive assembly (4) for driving the gas storage tank to rotate. At the top of both side mounting frames (6), a water collection tank (301) is fixedly connected. The water collection tank (301) is provided with a slot for avoiding the head of the gas storage tank. On both sides of the top of the water collection tank (301), there is a pickling assembly (5) for pickling the weld scar position of the head of the gas storage tank. At the top of both side mounting frames (6), there is a cleaning assembly (3) for washing the weld scar position of the head of the pickled gas storage tank.

2. The pickling device for the weld scar of the gas storage tank head according to claim 1, wherein, The pickling assembly (5) includes a mounting bracket (503) fixedly connected to the top of the water collection tank (301). One side of the mounting bracket (503) is slidably connected with a brushing carriage (502) through a first guiding rod (505). One end of the brushing carriage (502) is rotatably connected with a brushing wool roller (501). On one side of the mounting bracket (503), there is a longitudinal driving cylinder (504) for moving the brushing carriage (502) along the first guiding rod (505). At the top of the brushing carriage (502), a solution box (508) is fixedly connected. Inside the solution box (508), there is an automatic liquid leakage mechanism for rolling and applying the brushing wool roller (501).

3. The pickling device for the welding scar of the gas storage tank head according to claim 2, characterized in that, The automatic liquid leakage mechanism includes a leakage slot (511) opened at the bottom of the solution box (508), and the leakage slot (511) is in contact with the brushing wool roller (501). Inside the solution box (508), two second guiding rods (509) are fixedly connected. Between the two second guiding rods (509), a blocking plate (510) for blocking the leakage slot (511) is slidably connected. On one side of the mounting bracket (503), a limiting frame (506) for blocking the blocking plate (510) is fixedly connected. A tension spring (507) is fixedly connected between the limiting frame (506) and the blocking plate (510).

4. The pickling device for the welding scar of the gas storage tank head according to claim 1, characterized in that, The cleaning assembly (3) includes water spraying pipes (310) fixedly connected to both sides of the water collection tank (301). One end of the water spraying pipe (310) penetrates the water collection tank (301). The other end of the water spraying pipe (310) is aligned with the weld scar position of the head of the gas storage tank. On one side of the water collection tank (301) and near the bottom end, there is a drain valve (302).

5. The pickling device for the welding scar of the gas storage tank head according to claim 4, characterized in that, The cleaning component (3) further includes a plurality of transverse guide rails (303) fixedly connected to the top of the side mounting frame (6). A transverse sliding frame (304) is slidably connected between the plurality of transverse guide rails (303) through a sliding table. One side of the transverse sliding frame (304) is fixedly connected with two mounting bodies (306). Inside both of the two mounting bodies (306), a servo motor (307) is fixedly connected. One end of the output shaft of the servo motor (307) passes through the mounting body (306) and is fixedly connected with a brush (308). A through groove (309) for avoiding the brush (308) is formed on one side of the water collecting tank (301). A transverse driving cylinder (305) for driving the transverse sliding frame (304) to move horizontally along the transverse guide rail (303) is provided on the outer wall of one side of the water collecting tank (301).

6. The pickling device for the weld scar of the gas storage tank head according to claim 5, characterized in that The diameter of the through groove (309) is smaller than the diameter of the brush (308), and the brush (308) is located below the water spraying pipe (310).

7. An acid pickling device for the weld scar of a gas storage tank head according to claim 1, characterized in that, The support component (2) includes a plurality of support frames (201) fixedly connected to the top of the bottom plate (1). Inside each of the plurality of support frames (201), a fixed angle bracket (202) is fixedly connected. Inside the fixed angle bracket (202), two support rollers (203) in contact with the gas storage tank body are rotatably connected through bearings.

8. The pickling device for the welding scar of the gas storage tank head according to claim 1, characterized in that, The driving component (4) includes two bottom mounting frames (406) fixedly connected to the top of the bottom plate (1). Inside both of the two bottom mounting frames (406), driving rollers (403) are rotatably connected through bearings. The two driving rollers (403) are connected and fixed through a connecting shaft (405). One side of the connecting shaft (405) is fixedly connected with a driven belt pulley (404). A driving reduction motor (401) is fixedly connected to the top of the bottom plate (1). One end of the output shaft of the driving reduction motor (401) is fixedly connected with a driving belt pulley (402) which is connected to the driven belt pulley (404) through a belt drive.

9. The pickling device for the weld scar of the gas storage tank head according to claim 8, characterized in that, Friction sleeves are bonded to the circumferential outer sides of the two driving rollers (403), and the friction sleeves are preferably rubber sleeves.

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