Metal storage tank sealing performance detection equipment

Abstract

The invention relates to the technical field of tank body performance detection, in particular to metal storage tank sealing performance detection equipment which comprises a detection base and two roller frames installed on the detection base. A lifting mechanism used for placing the storage tank when the storage tank is placed and taken out is installed at the top of the detection base and located between the two roller frames. And a spraying mechanism for spraying a foaming agent to the welding seam position of the tank body is arranged above the lifting mechanism. When the storage tank is placed and taken out, the stability of placing and taking out of the storage tank can be improved in a bearing mode, meanwhile, the front-back position of the storage tank can be adjusted when the storage tank is borne, and the convenience of position adjustment of the storage tank is improved; according to the invention, a mechanical down-spray mode is adopted for the tank body welding seam to cooperate with vibration on the tank body welding seam, so that the permeability of the foaming agent is improved, and the accuracy of the detection of the sealing performance of the storage tank is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tank performance detection, in particular to a metal storage tank sealing performance detection device. Background Art

[0002] Metal storage tanks are generally cylindrical bodies made of curled metal sheets that are welded. Metal storage tanks are widely used in the petrochemical industry, energy industry, food industry, etc. to store corresponding products. Therefore, the sealing performance of metal storage tanks is an important indicator to measure their quality. And because metal storage tanks are processed by welding, the weld position of metal storage tanks needs to be tested for sealing performance.

[0003] There are also technical solutions for testing the sealing performance of metal storage tanks. For example, the utility model patent with publication number CN221945511U discloses a device for testing oil and gas storage and transportation containers. This technical solution determines the specific location of the leak by pressurizing the container, spraying water on the upper part of the container through a rotating nozzle, and observing whether the container makes a sound of leaking. The above technical solution is for testing the sealing performance of vertical storage tanks, but it is impossible to focus on monitoring the weld position of large horizontal storage tanks. When testing large horizontal storage tanks, the storage tank is generally hoisted onto the support roller by hoisting. After the storage tank is pressurized, the storage tank is driven to rotate by the support roller. A spray bottle is manually held to spray the foaming agent on the weld position of the storage tank. The sealing performance of the metal storage tank is judged by observing whether there is foam at the weld position and the change of the pointer of the barometer.

[0004] The above-mentioned prior art has the following problems when testing the sealing performance of storage tanks. When the storage tank is hoisted onto the support roller, due to the uncertainty of the hoisting angle and the hoisting position, the storage tank is in a situation where the support roller collides violently, causing damage to the storage tank or the support roller. At the same time, when the position of the storage tank needs to be adjusted, it needs to be hoisted multiple times and the corresponding position adjustment needs to be made. In addition, when the foaming agent is manually sprayed on the storage tank, it is mostly sprayed upward, which causes a waste of the foaming agent, and the foaming agent cannot penetrate into the weld of the storage tank, thereby affecting the accuracy of the sealing performance test of the storage tank. Summary of the invention

[0005] The present invention adopts the following technical scheme to solve the above technical problems: a metal storage tank sealing performance testing device, comprising a testing base, two roller frames installed on the testing base, each roller frame is equipped with a supporting roller, and a lifting mechanism for placing and taking out the storage tank is installed on the top of the testing base and between the two roller frames.

[0006] The positions of the two roller frames relative to the lifting mechanism can be adjusted synchronously; the lifting mechanism includes a supporting base installed on the detection base, a supporting support plate installed on the supporting base through a lifting member, and the supporting support plate is symmetrically and slidably connected to a supporting platform for supporting the lower part of the storage tank. A T-shaped connecting plate is installed on the side of the supporting platform close to the corresponding position of the roller frame, and a vertical guide seat corresponding to the position of the T-shaped connecting plate is installed on the side of the roller frame, and the vertical guide seat is provided with a vertical T-shaped slide groove that slides with the T-shaped structure of the T-shaped connecting plate.

[0007] The upper side surface of the support platform is an arc-shaped structure, and a receiving groove is provided on the support platform. A positioning roller is slidably connected in the receiving groove. The positioning roller is used to lift the storage tank on the support platform to facilitate the front and rear position adjustment of the storage tank.

[0008] Preferably, the opening direction of the receiving groove is opposite to the center of the circle where the arc-shaped structure of the supporting platform is located, and the receiving groove is installed with a pushing piece, which is used to drive the calibration roller to automatically extend when the supporting platform is adjusted in height.

[0009] Preferably, the pushing member includes a pushing rod slidably installed at the lower part of the accommodating groove, one end of the pushing rod corresponding to the vertical guide seat slides through the supporting platform, the other end of the pushing rod is provided with a pushing slope, the bottom of the support frame of the calibration roller is provided with a pushed trapezoidal block matching with the pushing slope of the pushing rod, and a track protrusion is installed on the side of the vertical guide seat and corresponding to the position of the pushing rod. When the pushing rod contacts the track protrusion, it moves toward the accommodating groove, and then drives the calibration roller to move out of the accommodating groove through the pushed trapezoidal block, so that the calibration roller lifts the storage tank.

[0010] Preferably, the position of the push rod is staggered with the position of the T-shaped connecting plate, the track protrusion is an isosceles trapezoidal structure, and one end of the push rod corresponding to the vertical guide seat is an arc structure.

[0011] Preferably, a spraying mechanism for spraying foaming agent on the tank body weld is arranged above the lifting mechanism, and the spraying mechanism includes a spraying bracket installed on the upper part of the detection base, the spraying bracket is an L-shaped structure, and a spray box with a nozzle at the bottom is installed on the horizontal section of the spraying bracket.

[0012] Preferably, the middle part of the vertical section of the spray bracket is a telescopic structure and is equipped with a height adjustment member for adjusting its height, and the bottom of the spray bracket is installed on the detection base through an electric slider.

[0013] Preferably, both the front and rear sides of the spray box are detachably connected with a vibration mechanism, which is used to limit the distance between the nozzle and the storage tank, and can also vibrate the storage tank when the nozzle sprays the foaming agent, so as to facilitate the penetration of the foaming agent into the weld.

[0014] Preferably, the vibration mechanism includes a vibration hanger installed on the side of the spray box by bolts, a vibration head is installed at one end of the bottom of the vibration hanger close to the spray head through an elastic force storage column, and a follow-up roller is installed at the other end of the bottom of the vibration hanger, and the outer side of the follow-up roller is coated with an anti-slip layer.

[0015] Preferably, a toggle baffle is installed on the side of the vibration head close to the rotating roller, and a lever is extended and connected to the outer side of the rotating shaft of the rotating roller. The rotating roller rotates synchronously with the rotation of the storage tank, and then the lever drives the toggle baffle to lift and allows the elastic force storage column to store force. As the lever separates from the toggle baffle, the elastic force storage column drives the vibration head to hammer the storage tank.

[0016] Preferably, a clearance groove for the lever to move out is provided in the middle of the toggle baffle, both left and right sides of the toggle baffle are elastic telescopic structures, and the upper side of the ends of the elastic telescopic structures of the toggle baffle that are away from each other is a slope structure.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention can adopt a supporting method to increase the stability of placing and taking out the storage tank, and at the same time, the storage tank can be adjusted forward and backward when supported, which increases the convenience of its position adjustment; the present invention adopts a mechanical downward spraying method combined with vibration of the tank body weld to increase the permeability of the foaming agent, thereby increasing the accuracy of the tank sealing performance detection.

[0018] 2. The lifting mechanism of the present invention can be synchronously adjusted in position with the roller frame, so that the lifting mechanism can stably support storage tanks of different diameters. At the same time, the lifting mechanism can support the storage tank before it is placed on the support rollers, so that the storage tank slowly descends with the lifting mechanism and rests on the support rollers, thereby preventing the storage tank from colliding with the support rollers when it is initially placed, causing damage to the present invention or the storage tank. In addition, the lifting mechanism can also lift the storage tank from the support rollers after the sealing performance test of the storage tank is completed, so as to facilitate the removal of the storage tank from the present invention.

[0019] 3. After the support platform of the present invention supports the storage tank, the support platform contacts the track protrusion during the downward movement, so that the push rod drives the calibration roller to extend and support the storage tank, which is convenient for manual front and rear position adjustment of the storage tank. Then, as the support platform moves downward, the push rod separates from the track protrusion and is re-mounted on the support platform, and then the storage tank is placed on the support roller. The present invention adopts the above structure to control the movement of the calibration roller without adding drive, so that the storage tank can be lifted up by the calibration roller at a specific position on the support roller, which is convenient for the front and rear position adjustment of the storage tank.

[0020] Fourth, the vibration mechanism of the present invention is used to limit the distance between the nozzle and the storage tank, and can also vibrate the storage tank when the nozzle sprays the foaming agent, so as to facilitate the foaming agent to penetrate into the weld.

[0021] 5. When the present invention sprays foaming agent on a storage tank with an interface on the surface, it is necessary to control the storage tank to rotate back and forth. The inclined surface on the elastic telescopic structure of the baffle of the present invention causes the elastic telescopic structure to contract when the lever presses it from top to bottom, and the baffle moves upward when the elastic telescopic structure is pushed from bottom to top. When the lever rotates to the position of the give way slot, the lever passes through the give way slot, and at this time the elastic force storage column drives the vibration head to hammer the storage tank, thereby being able to detect the above-mentioned type of storage tank, thereby increasing the applicability of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a structural schematic diagram of the first viewing angle of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention.

[0025] Figure 3 It is a top view of the present invention.

[0026] Figure 4 yes Figure 3 Cross-sectional view along the XX axis.

[0027] Figure 5 yes Figure 4 Enlarged view of point N in the middle.

[0028] Figure 6 It is a structural schematic diagram between the spraying mechanism and the vibration mechanism of the present invention.

[0029] Figure 7 yes Figure 6 YY-direction cross-section.

[0030] In the figure: 1. detection base; 2. roller frame; 3. support roller; 4. lifting mechanism; 41. supporting base; 42. supporting support plate; 43. supporting platform; 431. accommodating groove; 432. calibration roller; 433. push trapezoidal block; 44. T-type connecting plate; 45. vertical guide seat; 46. push rod; 47. track protrusion; 5. spraying mechanism; 51. spraying bracket; 52. spraying box; 53. spray head; 54. height adjustment member; 55. electric slider; 6. vibration mechanism; 61. vibration hanger; 62. elastic force storage column; 63. vibrating head; 64. rotating roller; 65. toggle baffle; 66. toggle rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 and Figure 2 A metal storage tank sealing performance testing device comprises a testing base 1, two roller frames 2 installed on the testing base 1, each roller frame 2 is installed with a supporting roller 3, and a lifting mechanism 4 for placing and taking out the storage tank is installed on the top of the testing base 1 and between the two roller frames 2; the supporting roller 3 is driven by a motor, thereby driving the storage tank placed on the supporting roller 3 to rotate, and a supporting roller is installed on the top of the roller frame 2, and the supporting roller is against the lower part of the supporting roller 3 to support the supporting roller 3 to prevent the supporting roller 3 from being deformed due to the downward pressure of the storage tank for a long time.

[0033] See also Figure 2 and Figure 3 The positions of the two roller frames 2 relative to the lifting mechanism 4 can be adjusted synchronously; the lifting mechanism 4 includes a supporting base 41 installed on the detection base 1, a supporting support plate 42 installed on the supporting base 41 through a lifting member, and a supporting platform 43 for supporting the lower part of the storage tank is symmetrically slidably connected to the supporting support plate 42. A T-shaped connecting plate 44 is installed on the side of the supporting platform 43 near the corresponding position of the roller frame 2, and a vertical guide seat 45 corresponding to the position of the T-shaped connecting plate 44 is installed on the side of the roller frame 2. The vertical guide seat 45 is provided with a vertical T-shaped slide groove that slides with the T-shaped structure of the T-shaped connecting plate 44. The lifting mechanism 4 can be synchronously adjusted in position with the roller frame 2, so that the lifting mechanism 4 can stably support tanks of different diameters. At the same time, the lifting mechanism 4 can support the tank before it is placed on the support roller 3, so that the tank slowly descends along with the lifting mechanism 4 and rests on the support roller 3, thereby preventing the tank from colliding with the support roller 3 when it is initially placed, causing damage to the present invention or the tank. In addition, the lifting mechanism 4 can also lift the tank from the support roller 3 after the sealing performance test of the tank is completed, so as to facilitate the removal of the tank from the present invention.

[0034] It should be noted that the lifting member adopts a scissor-type extension structure, which can stably drive the supporting support plate 42 to move up and down, and at the same time, the scissor-type extension structure can have a strong supporting performance, thereby increasing the stability of the present invention when testing the sealing performance of large storage tanks. In addition, the two roller frames 2 can be adjusted to the left and right positions synchronously by setting an electric adjustment slider at the bottom of the roller frames 2, or by using a manual adjustment structure, so that the distance between the two roller frames 2 can be adjusted synchronously, thereby being suitable for testing the sealing performance of storage tanks with different diameters.

[0035] Specifically, when it is necessary to test the sealing performance of the storage tank, first, the left and right positions of the roller frame 2 are synchronously adjusted according to the size of the storage tank. At this time, the supporting platform 43 is driven to move synchronously under the cooperation of the vertical guide seat 45 and the T-shaped connecting plate 44, thereby increasing the stability of the supporting platform 43 for supporting the storage tank. Then, the supporting support plate 42 is driven to move upward by the lifting member, and the external crane is controlled to control the storage tank to move downward and rest on the supporting platform 43. The lifting member is then controlled to drive the supporting support plate 42 to move downward, and the storage tank on the supporting platform 43 can rest on the support roller 3 and detach from the supporting platform 43; the pipeline of the storage tank is closed and the storage tank is pressurized by injecting gas to keep the inside of the storage tank at a specified pressure, and a foaming agent is sprayed on the weld position of the storage tank to observe whether there is any leakage; after the air tightness test of the storage tank is completed, the lifting member is controlled to drive the supporting support plate 42 to move upward again, and the storage tank is moved out by the external crane.

[0036] Since the storage tank is hoisted by an external crane, the front and rear positions of the storage tank may be slightly deviated, especially after the storage tank is placed on the support roller 3, it is more inconvenient to adjust the front and rear positions of the storage tank. Therefore, the present invention adopts the following structure: Figure 4 and Figure 5 The upper side of the support platform 43 is an arc-shaped structure, and a receiving groove 431 is provided on the support platform 43. A buffer pad arranged alternately with the receiving groove 431 is provided on the support platform 43. A positioning roller 432 is slidably connected in the receiving groove 431. The positioning roller 432 is used to lift the storage tank on the support platform 43 to facilitate the front and rear position adjustment of the storage tank. The arc-shaped structure and the buffer pad on the support platform 43 can increase the stability of the storage tank when it is lifted. The positioning roller 432 can be moved upward by an external force, so that the positioning roller 432 lifts the storage tank, which is convenient for manual adjustment of the front and rear position of the storage tank.

[0037] In order to increase the convenience of ejecting the alignment roller 432, the present invention uses a push piece to control the alignment roller 432 to extend out of the receiving groove 431. The push piece is installed. Figure 4 and Figure 5The pushing member is used to drive the calibration roller 432 to automatically extend when the support platform 43 is adjusted in height. The opening direction of the accommodating groove 431 is opposite to the center of the circle where the arc structure of the support platform 43 is located, so that the calibration roller 432 will not have a large relative movement with the storage tank when moving upward. The pushing member can automatically drive the calibration roller 432 to extend and return to its original position with the help of the up and down movement of the lifting member.

[0038] In order to facilitate the front and rear position adjustment of the storage tank when placing and taking it out, the present invention drives the calibration roller 432 to extend when the storage tank is at a certain height from the support roller 3, so that the front and rear position of the storage tank can be conveniently adjusted during the placement and removal process. Figure 4 and Figure 5 The pushing member includes a pushing rod 46 slidably installed at the lower part of the accommodating groove 431, and one end of the pushing rod 46 corresponding to the vertical guide seat 45 slides through the supporting platform 43, and the other end of the pushing rod 46 is provided with a jacking slope, and the bottom of the support frame of the calibration roller 432 is provided with a pushed trapezoidal block 433 that matches the jacking slope of the pushing rod 46, and a track protrusion 47 is installed on the side of the vertical guide seat 45 and corresponding to the position of the pushing rod 46. When the pushing rod 46 contacts the track protrusion 47, it moves toward the accommodating groove 431, and then drives the calibration roller 432 to move out of the accommodating groove 431 through the pushed trapezoidal block 433, so that the calibration roller 432 lifts the storage tank; the position of the pushing rod 46 is staggered with the position of the T-shaped connecting plate 44, the track protrusion 47 is an isosceles trapezoidal structure, and the end of the pushing rod 46 corresponding to the vertical guide seat 45 is an arc structure. The arc-shaped structure of the push rod 46 can be stably matched with the track protrusion 47 , and at the same time, under the action of the track protrusion 47 of the isosceles trapezoidal structure, the push rod 46 can gradually push out the alignment roller 432 .

[0039] Specifically, after the storage tank is placed on the supporting platform 43, the supporting platform 43 is controlled to move downward, and the push rod 46 will contact the track protrusion 47 as the supporting platform 43 moves downward. The track protrusion 47 of the isosceles trapezoidal structure can push the push rod 46 inward, and the push rod 46 drives the calibration roller 432 to extend and support the storage tank through the cooperation of its extending slope and the pushed trapezoidal block 433, so as to facilitate manual adjustment of the front and rear position of the storage tank. Then, the supporting platform 43 is continued to be controlled to move downward, the push rod 46 is separated from the track protrusion 47, and the storage tank is placed on the supporting platform 43 again. As the supporting platform 43 continues to move downward, the storage tank is finally placed on the support roller 3. The steps for removing the storage tank are similar and will not be repeated here.

[0040] In the prior art, when testing the sealing performance of a storage tank, a foaming agent (mostly soapy water) is manually sprayed on the joint of the storage tank after the internal part of the storage tank is pressurized, so that if there is a leak at the joint of the storage tank, foam will be generated, which is convenient for visually identifying product defects. The above operation requires the storage tank to be rotated by the support roller 3, and then the foaming agent is sprayed on the weld of the storage tank by a manual hand-held spraying pot. The present invention adopts an automated spraying mechanism 5 to perform the corresponding operation, see Figure 1 and Figure 6 A spraying mechanism 5 for spraying a foaming agent on the weld of the tank body is arranged above the lifting mechanism 4. The spraying mechanism 5 includes a spraying bracket 51 installed on the upper part of the detection base 1. The spraying bracket 51 is an L-shaped structure. A spraying box 52 with a nozzle 53 at the bottom is installed on the horizontal section of the spraying bracket 51. A pressure pump and a feeding port are provided on the spraying box 52. The pressure pump can control the foaming agent in the spraying box 52 to be sprayed out by the nozzle 53. The feeding port is used to add the foaming agent.

[0041] Since the support roller 3 is synchronously adjusted left and right, the vertical middle position of the tank is determined, but the size and weld position of the tank are slightly deviated, so the spray mechanism 5 needs to be adjusted in height and front and rear positions, see Figure 1 The middle part of the vertical section of the spray bracket 51 of the storage tank is a telescopic structure and is equipped with a height adjustment member 54 for adjusting its height. The bottom of the spray bracket 51 is installed on the detection base 1 through an electric slider 55. The height of the spray bracket 51 is adjusted by the height adjustment member 54, and the electric slider 55 can adjust the front and rear position of the spray bracket 51.

[0042] When manually spraying the foaming agent on the tank weld, the method of overhead spraying is mostly used due to the large size of the tank, which causes serious dripping of the foaming agent and also causes the foaming agent to be unable to penetrate into the weld, affecting the overall sealing performance detection effect. The front and rear sides of the spray box 52 are both detachably connected with a vibration mechanism 6, which is used to limit the distance between the nozzle 53 and the tank, and can also vibrate the tank when the nozzle 53 sprays the foaming agent, so as to facilitate the foaming agent to penetrate into the weld. The present invention sprays the foaming agent on the tank weld by the nozzle 53 facing downward in the form of a downward spray, and at the same time, the vibration mechanism 6 can increase the utilization rate and permeability of the foaming agent.

[0043] See also Figure 6 and Figure 7The vibration mechanism 6 includes a vibration hanger 61 installed on the side of the spray box 52 by bolts, and a vibration head 63 is installed at one end of the bottom of the vibration hanger 61 close to the spray head 53 through an elastic force storage column 62, and a rotating roller 64 is installed at the other end of the bottom of the vibration hanger 61, and the outer side of the rotating roller 64 is covered with an anti-slip layer; a toggle baffle 65 is installed on the side of the vibration head 63 close to the rotating roller 64, and a toggle rod 66 is extended and connected to the outer side of the rotating shaft of the rotating roller 64, and the rotating roller 64 rotates synchronously when the storage tank rotates, and then the toggle rod 66 drives the toggle baffle 65 to lift and makes the elastic force storage column 62 store force, and as the toggle rod 66 separates from the toggle baffle 65, the elastic force storage column 62 drives the vibration head 63 to hammer the storage tank. The anti-skid layer of the rotating roller 64 can be rotated synchronously with the rotation of the storage tank. The downward spraying of the foaming agent by the nozzle 53 and the hammering of the storage tank by the vibration head 63 can increase the penetration effect of the foaming agent.

[0044] Since some storage tanks have interfaces on their surfaces, the storage tanks cannot rotate in one direction. Therefore, the support roller 3 controls the storage tanks to rotate back and forth, and the follow-up roller 64 rotates back and forth accordingly. In order to enable the follow-up roller 64 to move the baffle plate 65 upward in both forward and reverse rotations, the present invention is designed as follows: Figure 6 and Figure 7 The left and right sides of the toggle baffle 65 are both elastic telescopic structures, and the upper side of the end of the elastic telescopic structure of the toggle baffle 65 that is away from each other is an inclined structure, and a makeshift groove for the toggle rod 66 to move out is provided in the middle of the toggle baffle 65; the inclined surface on the elastic telescopic structure of the toggle baffle 65 causes the elastic telescopic structure to shrink when the toggle rod 66 presses it from top to bottom, and the toggle baffle 65 moves upward when the elastic telescopic structure is pushed from bottom to top, and when the toggle rod 66 rotates to the position of the makeshift groove, the toggle rod 66 passes through the makeshift groove, and at this time the elastic force storage column 62 drives the vibration head 63 to hammer the storage tank.

[0045] It should be noted that for storage tanks with interfaces on some surfaces, manual cooperation is required to spray the foaming agent in places where the machine cannot spray.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A metal storage tank sealing performance testing device, comprising a testing base, two roller frames mounted on the testing base, each roller frame being mounted with a supporting roller, characterized in that: A lifting mechanism for placing and removing the storage tank is installed on the top of the detection base and between the two roller frames; The positions of the two roller frames relative to the lifting mechanism can be adjusted synchronously; the lifting mechanism includes a supporting base installed on the detection base, a supporting support plate installed on the supporting base through a lifting member, and a supporting platform for supporting the lower part of the storage tank is symmetrically slidably connected to the supporting support plate, and a T-shaped connecting plate is installed on the side of the supporting platform close to the corresponding position of the roller frame, and a vertical guide seat corresponding to the position of the T-shaped connecting plate is installed on the side of the roller frame, and a T-shaped slide groove is provided on the vertical guide seat, which is vertically oriented and slidably matched with the T-shaped structure of the T-shaped connecting plate; The upper side surface of the support platform is an arc-shaped structure, and a receiving groove is opened on the support platform. A calibration roller is slidably connected in the receiving groove. After the storage tank is placed on the support platform, the lifting member drives the storage tank to move downward through the support platform, and controls the calibration roller to extend and support the storage tank, so that the storage tank can be adjusted in the front and rear position. As the control support platform continues to move downward, the calibration roller shrinks and the storage tank is placed on the support roller and separated from the support platform, and then the sealing performance of the storage tank is tested.

2. A metal storage tank sealing performance testing device according to claim 1, characterized in that: The opening direction of the receiving groove is opposite to the center of the circle where the arc-shaped structure of the supporting platform is located. The receiving groove is equipped with a pushing piece, which is used to drive the calibration roller to automatically extend when the supporting platform is adjusted in height.

3. A metal storage tank sealing performance testing device according to claim 2, characterized in that: The pushing member includes a pushing rod slidably installed at the lower part of the accommodating groove, one end of the pushing rod corresponding to the vertical guide seat slides through the supporting platform, the other end of the pushing rod is provided with a pushing slope, the bottom of the support frame of the calibration roller is provided with a pushed trapezoidal block matching the pushing slope of the pushing rod, and a track protrusion is installed on the side of the vertical guide seat and corresponding to the position of the pushing rod. When the pushing rod contacts the track protrusion, it moves toward the accommodating groove, and then drives the calibration roller to move out of the accommodating groove through the pushed trapezoidal block, so that the calibration roller lifts the storage tank.

4. A metal storage tank sealing performance testing device according to claim 3, characterized in that: The position of the push rod is staggered with the position of the T-shaped connecting plate, the track protrusion is an isosceles trapezoidal structure, and one end of the push rod corresponding to the vertical guide seat is an arc structure.

5. A metal storage tank sealing performance testing device according to any one of claims 1 to 4, characterized in that: A spraying mechanism for spraying foaming agent on the tank body weld is arranged above the lifting mechanism. The spraying mechanism includes a spraying bracket installed on the upper part of the detection base. The spraying bracket is an L-shaped structure. A spray box with a nozzle at the bottom is installed on the horizontal section of the spraying bracket.

6. The metal storage tank sealing performance testing equipment according to claim 5 is characterized in that: The middle part of the vertical section of the spraying bracket is a telescopic structure and is equipped with a height adjusting member for adjusting the height thereof. The bottom of the spraying bracket is installed on the detection base through an electric slider.

7. The metal storage tank sealing performance testing equipment according to claim 5 is characterized in that: The front and rear sides of the spray box are both detachably connected with a vibration mechanism, which is used to limit the distance between the nozzle and the storage tank, and can also vibrate the storage tank when the nozzle sprays the foaming agent, so as to facilitate the foaming agent to penetrate into the weld.

8. The metal storage tank sealing performance testing equipment according to claim 7 is characterized in that: The vibration mechanism includes a vibration hanger installed on the side of the spray box by bolts, a vibration head is installed at one end of the bottom of the vibration hanger close to the spray head through an elastic force storage column, and a rotating roller is installed at the other end of the bottom of the vibration hanger, and the outer side of the rotating roller is coated with an anti-slip layer.

9. The metal storage tank sealing performance testing equipment according to claim 8, characterized in that: A toggle baffle is installed on the side of the vibration head close to the rotating roller, and a toggle rod is extended and connected to the outer side of the rotating shaft of the rotating roller. The rotating roller rotates synchronously when the storage tank rotates, and then the toggle rod drives the toggle baffle to lift and allows the elastic force storage column to store force. As the toggle rod separates from the toggle baffle, the elastic force storage column drives the vibration head to hammer the storage tank.

10. The metal storage tank sealing performance testing equipment according to claim 9, characterized in that: A clearance groove for the lever to move out is provided in the middle of the toggle baffle, both left and right sides of the toggle baffle are elastic telescopic structures, and the upper side of the ends of the elastic telescopic structures of the toggle baffle that are away from each other is a slope structure.

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