Low-temperature ethylene full-capacity tank door hole welding plugging structure

Abstract

The present application relates to the technical fields of tank construction, and particularly relates to a low-temperature ethylene full-capacity tank door hole welding plugging structure, which comprises a tank door hole, a hot angle protection wallboard, foam glass bricks and an outer tank wallboard, and E-shaped supports are welded on the outer walls on both sides of the tank door hole, the construction is from inside to outside, the construction efficiency and the construction safety factor are greatly improved under the premise of ensuring the cold preservation effect, the safety hidden danger in the welding process of the closed and narrow space is reduced, the problem that the cold preservation filling at the welding seam of the temporary door hole wallboard of the outer tank is not sufficient and the cold preservation is easily caused is effectively solved, and through the setting of the upper E-shaped support, the lower E-shaped support, the mounting disc and the T-shaped frame and other structures, the supporting effect can be provided when the hot angle protection wallboard and the outer tank wallboard are welded, the supporting position can be flexibly adjusted, the hot angle protection wallboard and the outer tank wallboard can be accurately welded on the tank door hole, and the convenience performance in the plugging process is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tank construction, and particularly relates to a low-temperature ethylene full-capacity tank door hole welding plugging structure. BACKGROUND

[0002] The door hole of the low-temperature ethylene full-capacity tank is an opening reserved in the tank construction process, mainly used for the entry and exit of construction personnel and equipment, and the transportation of construction materials. The existence of the door hole makes the construction process more convenient, especially when welding, installation and inspection are carried out inside the tank, it provides a necessary passage. After the completion of the tank construction, the door hole of the low-temperature ethylene full-capacity tank needs to be plugged, the purpose of which is to ensure the structural integrity and sealing of the tank, prevent low-temperature medium leakage, and at the same time guarantee the construction quality and safety. The existing door hole plugging construction usually adopts an outside-to-inside construction sequence, that is, first installing the outer tank wall plate, then laying the interlayer tank wall foam glass brick, and finally installing the hot angle protection wall plate.

[0003] Due to the narrow, sealed and dim interlayer interval, the construction personnel need to operate in an extremely limited space, which not only increases the construction difficulty, but also reduces the construction safety factor. Especially when welding the hot angle protection wall plate, the construction personnel need to weld in the narrow interlayer, which is easy to cause the welding quality to decrease due to fatigue and inconvenience of operation. Moreover, when welding the hot angle protection wall plate, manual support of the wall plate is usually needed to ensure its accurate position. This operation not only has low efficiency, but also increases the labor intensity and safety risk of the construction personnel. Especially during the welding process, the wall plate is heavy and is easy to displace under the action of thermal expansion and other factors, which needs the construction personnel to continuously support, further reducing the construction efficiency.

[0004] Therefore, a low-temperature ethylene full-capacity tank door hole welding plugging structure is proposed to solve the above problems. SUMMARY

[0005] The present application relates to the technical field of tank construction, and particularly relates to a low-temperature ethylene full-capacity tank door hole welding plugging structure.

[0006] To achieve the above object, the technical scheme adopted by the present application is as follows: a low-temperature ethylene full-capacity storage tank door hole welding plugging structure, comprising a storage tank door hole, a hot corner protection wall plate, a foam glass brick and an outer tank wall plate, an upper E-shaped support is welded on the outer wall on both sides of the storage tank door hole, a lower E-shaped support is welded on the outer wall above the storage tank door hole, a fixed frame is arranged beside the upper E-shaped support and the lower E-shaped support, a sliding frame is slidably connected to the inner side of the fixed frame, a T-shaped frame is slidably connected between the sliding frames, a circular rod is slidably connected through the connecting point of the T-shaped frame, an installation disc is arranged at the rear end of the circular rod, an annular groove is formed in the side wall of the installation disc, a pair of semicircular ring electromagnets are fixedly connected in the annular groove, and a fixing structure for fixing the position of the installation disc is arranged in the T-shaped frame.

[0007] When plugging, first, the hot corner protection wall plate is positioned and supported in the storage tank door hole by the electromagnets on the installation disc, then the foam glass brick is directly pasted on the hot corner protection wall plate, then a layer of glass wool is pasted on the foam glass brick at the storage tank door hole, and finally the outer tank wall plate is positioned and supported on the storage tank door hole by the installation disc, and positioning welding is performed, so that the plugging is completed.

[0008] In the above technical scheme, further, a reset spring is fixedly connected between the inner upper and lower sides of the fixed frame and the outer wall of the sliding frame, and a pair of L-shaped insertion plates for being inserted into the inner sides of the upper E-shaped support and the lower E-shaped support are fixedly connected to the side walls of the fixed frame.

[0009] In the above technical scheme, further, the fixing structure comprises a lock block, a T-shaped block is slidably connected to the inner side of each branch of the T-shaped frame, the T-shaped block is arranged through the outer wall of the T-shaped frame at the front side, three connecting plates are fixedly connected to the outer wall of the circular rod, the connecting plates are fixedly connected to the side walls of the T-shaped blocks, a bottom frame is fixedly connected through the position below the T-shaped frame relative to the circular rod, the lock block is slidably connected to the inner side of the bottom frame, a lock groove matched with the lock block is formed in the bottom end of the circular rod, an upper spring is fixedly connected between the inner bottom end of the bottom frame and the bottom of the lock block, and a plurality of clamping grooves are equally formed in the inner side of the fixed frame relative to the positions beside the T-shaped blocks.

[0010] In the above technical scheme, further, a pull rod is fixedly connected to the bottom end of the lock block, the pull rod is arranged through the bottom end of the bottom frame at the bottom end, a plurality of lower springs are fixedly connected between the inner side of the sliding frame and the side wall of the connecting plate, and an insertion groove matched with the side end of the T-shaped block is formed in the inner side of the sliding frame.

[0011] In the above technical scheme, further, a front plate is fixedly connected to the front end of the circular rod, a return spring is fixedly connected between the front plate and the outer wall of the T-shaped frame, and a pull ring is fixedly connected to the front side of the front plate.

[0012] Further, the rear side of the round rod is provided with a connecting rod, the connecting rod and the rear side of the round rod are both provided with threaded grooves, the connecting rod and the front side of the mounting disc are both fixedly connected with threaded blocks, the mounting disc is threadedly connected in the threaded groove on the connecting rod through the threaded blocks, and the connecting rod is threadedly connected in the threaded groove on the round rod through the threaded blocks.

[0013] Further, the outer wall of the round rod is fixedly connected with a pair of guide blocks, the outer wall of the T-shaped frame is provided with guide grooves matched with the guide blocks, and the guide blocks are slidingly connected inside the guide grooves.

[0014] Further, the outer wall of the mounting disc is equidistantly provided with a plurality of magnetic attraction mounting grooves, one of the magnetic attraction mounting grooves is inserted with an iron block, the outer wall of the iron block is fixedly connected with a top plate, a screw rod is threadedly connected through the side wall of the top plate, an arc-shaped plate is rotationally connected to the side wall of the screw rod, and guide plates are fixedly connected to the side walls of the arc-shaped plate relative to both sides of the top plate.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1. The present application greatly improves the construction efficiency and safety factor, reduces the safety hazards in the welding process of the closed and narrow space, effectively solves the problem of poor cold preservation at the welding seam of the temporary door hole wall plate of the outer tank, and provides support during the welding of the hot angle protection wall plate and the outer tank wall plate, while being able to flexibly adjust the support position, ensuring accurate welding of the hot angle protection wall plate and the outer tank wall plate on the tank door hole and improving the convenience performance during plugging.

[0017] 2. The present application can adjust the horizontal position of the hot angle protection wall plate or the outer tank wall plate by adjusting the distance between the hot angle protection wall plate or the outer tank wall plate and the mounting disc when the hot angle protection wall plate or the outer tank wall plate is supported on the tank door hole, ensuring accurate welding position and plugging effect of the tank door hole, while increasing the flexibility of the support equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a front perspective view of the tank door hole of the present application;

[0019] Figure 2 is a partial side view of the tank door hole after plugging of the present application;

[0020] Figure 3 is an appendix of the present application Figure 1The local enlarged structure schematic view at middle A;

[0021] Figure 4 The rear perspective structure schematic view of the T-shaped frame, the upper E-shaped support and the lower E-shaped support of the present application;

[0022] Figure 5 The local enlarged structure schematic view at middle B; Figure 4 The local enlarged structure schematic view at middle B;

[0023] Figure 6 The local side full-section perspective structure schematic view of the T-shaped frame and the mounting disc of the present application;

[0024] Figure 7 The local sectioned bottom perspective structure schematic view of the round rod, the lock block and the T-shaped plate of the present application;

[0025] Figure 8 The local perspective structure schematic view of the fixed frame and the T-shaped frame of the present application;

[0026] Figure 9 The overall appearance structure schematic view of the arc-shaped plate and the iron block of the present application.

[0027] In the figure: 1, tank door hole; 2, hot angle protection wallboard; 3, foam glass brick; 4, outer tank wallboard; 5, upper E-shaped support; 6, lower E-shaped support; 7, fixed frame; 8, sliding frame; 9, T-shaped frame; 10, round rod; 11, mounting disc; 12, electromagnet; 13, glass wool; 14, reset spring; 15, L-shaped plugboard; 16, lock block; 17, T-shaped block; 18, connecting plate; 19, bottom frame; 20, lock slot; 21, upper spring; 22, pull rod; 23, lower spring; 24, clamping slot; 25, front plate; 26, return spring; 27, pull ring; 28, connecting rod; 29, threaded block; 30, guide block; 31, magnetic attraction mounting slot; 32, iron block; 33, top plate; 34, screw rod; 35, arc-shaped plate; 36, guide plate. DETAILED DESCRIPTION

[0028] In order to enable the above objects, features and advantages of the present application to be more clearly understood, the following will further describe the present application with reference to the accompanying drawings and specific embodiments.

[0029] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details given herein, and that the present application is not limited to the specific embodiments disclosed.

[0030] In practical use, it was found that due to the narrow, sealed, and dimly lit interlayer, construction workers had to operate in an extremely limited space, which not only increased the difficulty of construction but also reduced the safety factor. In particular, when welding the hot corner protection wall panel 2, construction workers had to weld in the narrow interlayer, which easily led to a decline in welding quality due to fatigue and inconvenience. Furthermore, when welding the hot corner protection wall panel 2, it was usually necessary to manually support the wall panel to ensure its accurate position. This operation was not only inefficient but also increased the labor intensity and safety risks of construction workers. Especially during the welding process, the wall panel was heavy and prone to displacement due to thermal expansion and other factors, requiring continuous support from construction workers, which further reduced construction efficiency. To solve the above problems, the following structure was invented.

[0031] like Figures 1-9 The diagram shows a welding and sealing structure for the door opening of a low-temperature ethylene full-containment storage tank, including a tank door opening 1, a hot corner protection wall panel 2, a foam glass brick 3, and an outer tank wall panel 4. Upper E-type brackets 5 are welded to the outer walls on both sides of the tank door opening 1, and lower E-type brackets 6 are welded to the outer wall above the tank door opening 1. Fixed frames 7 are provided next to both the upper E-type brackets 5 and the lower E-type brackets 6. Sliding frames 8 are slidably connected to the inner side of the fixed frames 7. T-type frames 9 are slidably connected between the sliding frames 8. A round rod 10 is slidably connected through the connection point of the T-type frames 9. An installation plate 11 is provided at the rear end of the round rod 10. An annular groove is opened on the side wall of the installation plate 11. A pair of semi-circular annular electromagnets 12 are fixedly connected in the annular groove. A fixing structure for fixing the position of the installation plate 11 is provided in the T-type frame 9.

[0032] During sealing, the hot corner protection wall plate 2 is first positioned and supported by the electromagnet 12 on the mounting plate 11 and welded to the inside of the tank door opening 1. Then, the foam glass brick 3 is directly pasted onto the hot corner protection wall plate 2. Next, a layer of glass wool 13 is applied to the foam glass brick 3 at the tank door opening 1. Because the outer tank wall plate 4 is relatively thick and the reserved door opening dimensions are relatively short, the weld seams are relatively concentrated. This makes it difficult to control the deformation at the weld seams after the wall plate is welded, resulting in a gap between the outer tank wall plate 4 and the foam glass brick 3. Applying a 33cm thick layer of glass wool 13 to the foam glass brick 3 can effectively fill the gap caused by welding deformation. The gap between the outer tank wall panel 4 and the foam glass brick 3 caused by this gap is finally sealed by positioning and supporting the outer tank wall panel 4 on the tank door opening 1 again through the mounting plate 11 and performing positioning welding. By constructing from the inside out, the construction efficiency and safety factor are greatly improved while ensuring the cold insulation effect. The safety hazards in the welding process in the closed and narrow space are reduced. It effectively solves the problem that the cold insulation filling at the weld of the temporary door opening wall panel of the outer tank is not solid and easily causes cold penetration. Furthermore, by constructing from the inside out, the T-frame 9 and the mounting plate 11 can support the hot corner protection wall panel 2 and the outer tank wall panel 4 in sequence for welding.

[0033] Reset spring 14 is fixedly connected between the upper and lower sides inside the fixed frame 7 and the outer wall of the sliding frame 8, the side wall of the fixed frame 7 is fixedly connected with a pair of L-shaped insertion plates 15 for being inserted into the inner side of the upper E-shaped support 5 and the lower E-shaped support 6, through the arrangement of the L-shaped insertion plate 15, the fixed frame 7 can be quickly installed on the upper E-shaped support 5 and the lower E-shaped support 6, and after the door hole is blocked, the fixed frame 7 and the T-shaped frame 9 can be quickly taken out;

[0034] The fixed structure comprises a lock block 16, the inner side of the three branches of the T-shaped frame 9 is slidably connected with a T-shaped block 17, the front side of the T-shaped block 17 penetrates the outer wall of the T-shaped frame 9, the outer wall of the round rod 10 is fixedly connected with three connecting plates 18, the connecting plate 18 is fixedly connected on the side wall of the T-shaped block 17, the lower position of the T-shaped frame 9 relative to the round rod 10 penetrates and is fixedly connected with a bottom frame 19, the lock block 16 is slidably connected inside the bottom frame 19, the bottom end of the round rod 10 is provided with a lock groove 20 matched with the lock block 16, the inner bottom end of the bottom frame 19 and the bottom of the lock block 16 are fixedly connected with an upper spring 21, a plurality of clamping grooves 24 are equidistantly arranged on the inner side of the fixed frame 7 relative to the position beside the T-shaped block 17;

[0035] The bottom end of the lock block 16 is fixedly connected with a pull rod 22, through the arrangement of the pull rod 22, after the hot angle protection wall plate 2 is welded, the pull rod 22 is pulled to drive the lock block 16 to move downwardly out of the lock groove 20, so that the position limitation of the round rod 10 is quickly released, and the bottom end of the pull rod 22 penetrates the bottom end of the bottom frame 19, a plurality of lower springs 23 are fixedly connected between the inner side of the T-shaped frame 9 and the side wall of the connecting plate 18, the inner side of the sliding frame 8 is provided with an insertion slot matched with the side end of the T-shaped block 17, through the arrangement of the insertion slot, the T-shaped block 17 is prevented from being inserted into the corresponding clamping groove 24 to lock the position of the T-shaped frame 9;

[0036] During the door hole blocking process, first, the upper E-shaped support 5 and the lower E-shaped support 6 are welded on the outer wall of the storage tank (it should be noted that the positions between the two upper E-shaped supports 5 need to be kept horizontal to ensure the normal installation of the T-shaped frame 9, and the lower E-shaped support 6 is also horizontally welded on the outer wall of the storage tank), then the fixed frame 7 is inserted into the upper E-shaped support 5 and the lower E-shaped support 6 through the L-shaped insertion plate 15, then the hot angle protection wall plate 2 is placed on the side wall of the mounting disc 11, and then the electromagnet 12 is turned on to attract the hot angle protection wall plate 2 (it should be noted that the hot angle protection wall plate 2 and the outer tank wall plate 4 are made of the same material);

[0037] At this time, if the hot angle protection wallboard 2 has deviation with the position of the two sides of the storage tank door hole 1, the T-shaped frame 9 can be pushed to move left and right, and the sliding frame 8 on the lower E-shaped support 6 can slide in the fixed frame 7, and the reset spring 14 on the two sides can be compressed and stretched, and the both ends of the T-shaped frame 9 can slide in the sliding frame 8 on the upper E-shaped support 5, if the hot angle protection wallboard 2 has deviation with the up and down position of the storage tank door hole 1, the T-shaped frame 9 can be pushed to move upward or downward, and the sliding frame 8 beside the upper E-shaped support 5 can slide up and down in the fixed frame 7 through the both sides of the T-shaped frame 9, and the corresponding reset spring 14 can be compressed and stretched, and the top end of the T-shaped frame 9 can slide up and down in the sliding frame 8 beside the lower E-shaped support 6, then after the adjustment is completed, after the hot angle protection wallboard 2 is accurately clamped into the storage tank door hole 1, the circular rod 10 can be pulled forward to drive the mounting disc 11 and the hot angle protection wallboard 2 to move forward, and through the movement of the circular rod 10, the T-shaped block 17 can be driven to the front side through the connecting plate 18, so that the front end of the T-shaped block 17 is inserted into the corresponding clamping groove 24, and the lock slot 20 at the bottom end of the circular rod 10 is moved above the lock block 16, so that the extrusion of the lock block 16 is released, and then the lock block 16 is pushed into the corresponding lock slot 20 under the elastic force of the upper spring 21, so that the sliding position of the circular rod 10 is limited, the position of the T-shaped frame 9 on the fixed frame 7 is limited, and the hot angle protection wallboard 2 is driven to move into the storage tank door hole 1, and finally welding can be performed.

[0038] In order to pull the circular rod 10 to drive the mounting disc 11 to move forward and lock the sliding position of the T-shaped frame 9 on the fixed frame 7, the front plate 25 is fixedly connected to the front end of the circular rod 10, the reset spring 26 is fixedly connected between the front plate 25 and the outer wall of the T-shaped frame 9, and the pull ring 27 is fixedly connected to the front side of the front plate 25, when the position adjustment of the T-shaped frame 9 and the mounting disc 11 is completed, the pull ring 27 can be pulled to drive the front plate 25 and the circular rod 10 to move forward, so that the T-shaped block 17 is inserted into the corresponding clamping groove 24, the lock slot 20 is moved above the lock block 16, the extrusion of the lock block 16 is released, and then the lock block 16 is pushed into the lock slot 20 under the elastic force of the upper spring 21, so that the position of the circular rod 10 is quickly locked, and the reset spring 26 is stretched, so that the circular rod 10 and the front plate 25 can be quickly reset after the limiting is released, and the convenience of the equipment is improved.

[0039] In order to support the welding positions of the hot angle protection wallboard 2 and the outer tank wallboard 4 at different positions in the storage tank door hole 1, the connecting rod 28 is arranged at the rear side of the circular rod 10, the connecting rod 28 and the rear side of the circular rod 10 are both provided with threaded grooves, the connecting rod 28 and the front side of the mounting disc 11 are both fixedly connected with the threaded block 29, the mounting disc 11 is threadedly connected in the threaded groove on the connecting rod 28 through the threaded block 29, and the connecting rod 28 is threadedly connected in the threaded groove on the circular rod 10 through the threaded block 29;

[0040] When the hot angle protection wallboard 2 is welded, first, the electromagnet 12 is turned off to release the adsorption and fixation of the hot angle protection wallboard 2, then the threaded block 29 on the mounting disc 11 is screwed out of the threaded groove on the connecting rod 28, then the connecting rod 28 is screwed out, then the threaded block 29 on the mounting disc 11 is installed in the threaded groove on the circular rod 10, then the lock block 16 is pulled out of the lock groove 20 by the pull rod 22 to release the sliding restriction of the circular rod 10, then the circular rod 10 is pulled to reset under the elastic force of the return spring 26 and the lower spring 23, and then the above-mentioned operation is repeated to position and weld the foam glass brick 3 and the glass wool 13 after they are pasted, and finally, the power of the electromagnet 12 is turned off after welding, and the L-shaped plug-in plate 15 on the fixed frame 7 is pulled out of the upper E-shaped support 5 and the lower E-shaped support 6 in sequence (it should be noted that when pulled out, the clamping groove 24 on the fixed frame 7 will slide on the T-shaped block 17, the T-shaped block 17 is pulled out in the same direction as the L-shaped plug-in plate 15, so as not to affect the normal removal of the fixed frame 7 from the upper E-shaped support 5 and the lower E-shaped support 6).

[0041] In order to improve the stability during the operation of the equipment, a pair of guide blocks 30 are fixedly connected to the outer wall of the circular rod 10, and guide grooves matched with the guide blocks 30 are formed in the outer wall of the T-shaped frame 9, the guide blocks 30 being slidably connected to the inner side of the guide grooves, the guide blocks 30 and the guide grooves can limit the rotation of the circular rod 10, avoiding the arbitrary rotation of the circular rod 10, which not only affects the normal installation of the threaded block 29, but also affects the accurate insertion of the lock block 16 into the lock groove 20.

[0042] As described above, the above structure can provide support when the hot angle protection wallboard 2 and the outer tank wall plate 4 are welded, and can flexibly adjust the support position to ensure that the hot angle protection wallboard 2 and the outer tank wall plate 4 are accurately welded on the tank door opening 1, thereby improving the convenience during plugging.

[0043] Based on the above embodiment, it is found that due to the welding position precision of the upper E-shaped support 5 and the lower E-shaped support 6, the horizontal of the mounting disc 11 will inevitably tilt after the fixed frame 7 and the T-shaped frame 9 are installed, and then a large gap will appear between the adsorbed and supported hot angle protection wallboard 2 or outer tank wall plate 4 and the tank door opening 1, which will affect the plugging effect of the tank door opening 1, and the above structure is further improved to solve the above problem.

[0044] A plurality of magnetic installation grooves 31 are equidistantly formed in the outer wall of the mounting disc 11, one of the magnetic installation grooves 31 is inserted with an iron block 32, the outer wall of the iron block 32 is fixedly connected with a top plate 33, a threaded rod 34 is threadedly connected through the side wall of the top plate 33, an arc-shaped plate 35 is rotatably connected to the side wall of the threaded rod 34, and a guide plate 36 is fixedly connected to the side wall of the arc-shaped plate 35 relative to both sides of the top plate 33.

[0045] When the position adjustment of the T-shaped frame 9 is completed and locked, the thermal angle protection wall plate 2 at this time will enter the storage tank door hole 1 along with the installation disc 11, at this time, if there is a gap between the thermal angle protection wall plate 2 and the storage tank door hole 1, the iron block 32 can be inserted into the magnetic attraction installation slot 31 beside the position that needs to be adjusted, and under the magnetic attraction, the iron block 32 is adsorbed, and then the electromagnet 12 on the side that needs to be adjusted is closed (it should be noted that the suction force of the electromagnet 12 needs to be selected to be able to stably adsorb the wall plate, and under the extrusion force of the rotation of the screw rod 34 driven by the electric gun, the wall plate can be pushed to move), then the sleeve rotating screw rod 34 on the electric gun is used to move spirally backward, at the same time, the arc-shaped plate 35 is pushed to move backward, and the guide plate 36 is driven to move to the rear side (it should be noted that through the arrangement of the guide plate 36, it can be ensured that the arc-shaped plate 35 will not rotate along with the screw rod 34, and the stability during the adjustment process is improved), thereby extruding the thermal angle protection wall plate 2, and the thermal angle protection wall plate 2 is moved backward to be flush with the inner wall of the storage tank door hole 1, then the power supply of the electromagnet 12 on the other side is turned on, and the thermal angle protection wall plate 2 is continuously adsorbed, and the thermal angle protection wall plate 2 can be welded.

[0046] In summary, through the design of the above structure, when the thermal angle protection wall plate 2 or the outer tank wall plate 4 is supported on the storage tank door hole 1, the thermal angle protection wall plate 2 or the outer tank wall plate 4 can be extruded to adjust the distance between the thermal angle protection wall plate 2 or the outer tank wall plate 4 and the installation disc 11, so that the horizontal position of the thermal angle protection wall plate 2 or the outer tank wall plate 4 can be adjusted, and the thermal angle protection wall plate 2 or the outer tank wall plate 4 can be ensured to be in the accurate welding position, and the sealing effect of the storage tank door hole 1 is ensured, and the flexibility of the supporting equipment is increased.

[0047] The above shows and describes the basic principles, main features and advantages of the present application.

[0048] Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A low-temperature ethylene full containment tank door hole welding plugging structure, comprising a tank door hole (1), a hot corner protection wallboard (2), a foam glass brick (3) and an outer tank wallboard (4), characterized in that: The outer wall on both sides of the tank door hole (1) is welded with an upper E-shaped support (5), the outer wall above the tank door hole (1) is welded with a lower E-shaped support (6), the upper E-shaped support (5) and the lower E-shaped support (6) are provided with a fixed frame (7) beside, the inner side of the fixed frame (7) is slidably connected with a sliding frame (8), the sliding frames (8) are slidably connected with a T-shaped frame (9), the connecting point of the T-shaped frame (9) is slidably connected with a round rod (10), the rear end of the round rod (10) is provided with a mounting disc (11), the side wall of the mounting disc (11) is provided with an annular groove, a pair of semicircular electromagnetic iron (12) is fixedly connected in the annular groove, the T-shaped frame (9) is provided with a fixing structure for fixing the position of the mounting disc (11). When plugging, first, the hot angle protection wall plate (2) is positioned and supported by the electromagnet (12) on the mounting disc (11) and is welded on the inner side of the tank door hole (1), then the foam glass brick (3) is directly pasted on the hot angle protection wall plate (2), then a layer of glass wool (13) is pasted on the foam glass brick (3) at the tank door hole (1), and finally the outer tank wall plate (4) is positioned and supported on the tank door hole (1) by the mounting disc (11) again, and positioning and welding are carried out, so that the plugging is completed. The fixing structure comprises a lock block (16), the inner side of the three branches of the T-shaped frame (9) is slidably connected with a T-shaped block (17), and the front side of the T-shaped block (17) penetrates through the outer wall of the T-shaped frame (9) and is arranged, three connecting plates (18) are fixedly connected to the outer wall of the round rod (10), and the connecting plates (18) are fixedly connected to the side wall of the T-shaped block (17), a bottom frame (19) is fixedly connected to the lower position of the T-shaped frame (9) relative to the round rod (10), the lock block (16) is slidably connected to the inner side of the bottom frame (19), a lock groove (20) matched with the lock block (16) is formed in the bottom end of the round rod (10), an upper spring (21) is fixedly connected between the inner bottom end of the bottom frame (19) and the bottom of the lock block (16), and a plurality of clamping grooves (24) are equidistantly formed in the inner side of the fixed frame (7) relative to the position beside the T-shaped block (17).

2. The low-temperature ethylene full containment tank door hole welding plugging structure according to claim 1, characterized in that: The inner side of the fixed frame (7) is fixedly connected with a reset spring (14) between the upper and lower sides and the outer wall of the sliding frame (8), and a pair of L-shaped insertion plates (15) are fixedly connected to the side wall of the fixed frame (7) for being inserted into the inner side of the upper E-shaped support (5) and the lower E-shaped support (6).

3. The low-temperature ethylene full containment tank door hole welding plugging structure according to claim 1, characterized in that: The bottom end of the lock block (16) is fixedly connected with a pull rod (22), the bottom end of the pull rod (22) penetrates through the bottom end of the bottom frame (19) and is arranged, a plurality of lower springs (23) are fixedly connected between the inner side of the T-shaped frame (9) and the side wall of the connecting plate (18), and an insertion groove matched with the side end of the T-shaped block (17) is formed in the inner side of the sliding frame (8).

4. The low-temperature ethylene full containment tank door opening welding plugging structure according to claim 1, characterized in that: The front end of the round rod (10) is fixedly connected with a front plate (25), the front plate (25) and the outer wall of the T-shaped frame (9) are fixedly connected with a return spring (26), and the front plate (25) is fixedly connected with a pull ring (27).

5. The low temperature ethylene full containment tank door opening weld plug structure of claim 1, wherein: The rear side of the round rod (10) is provided with a connecting rod (28), the connecting rod (28) and the rear side of the round rod (10) are both provided with threaded grooves, the connecting rod (28) and the front side of the mounting disc (11) are both fixedly connected with threaded blocks (29), the mounting disc (11) is threadedly connected in the threaded groove on the connecting rod (28) through the threaded blocks (29), and the connecting rod (28) is threadedly connected in the threaded groove on the round rod (10) through the threaded blocks (29).

6. The low temperature ethylene full containment tank door opening weld plug structure of claim 1, wherein: The outer wall of the round rod (10) is fixedly connected with a pair of guide blocks (30), and the outer wall of the T-shaped frame (9) is provided with guide grooves matched with the guide blocks (30); the guide blocks (30) are slidably connected to the inner side of the guide grooves.

7. The low temperature ethylene full containment tank door opening weld plug structure of claim 1, wherein: The outer wall of the mounting disc (11) is equidistantly provided with a plurality of magnetic attraction mounting grooves (31), one of the magnetic attraction mounting grooves (31) is inserted with an iron block (32), the outer wall of the iron block (32) is fixedly connected with a top plate (33), the side wall of the top plate (33) is threadedly connected with a screw rod (34) penetrating through, the side wall of the screw rod (34) is rotatably connected with an arc-shaped plate (35), and the side wall of the arc-shaped plate (35) is fixedly connected with guide plates (36) on both sides relative to the top plate (33).

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