Batch dismounting and mounting tool for bottom springs of reactor

Abstract

The utility model discloses a batch dismounting and mounting tool for reactor bottom springs, which comprises a base, a hand-cranking lifter, a pneumatic lifting assembly, a batch operation assembly and a leveling structure, the hand-cranking lifter is fixedly arranged above the base, the pneumatic lifting assembly is fixedly arranged above the hand-cranking lifter, and the batch operation assembly is fixedly arranged above the base. The pneumatic lifting assembly is arranged on the base, the batch operation assembly is arranged above the pneumatic lifting assembly, the leveling structure is arranged between the pneumatic lifting assembly and the batch operation assembly, the batch operation assembly comprises an operation supporting plate, a pneumatic drill and a spring clamping piece, and the operation supporting plate is arranged above the leveling structure. The utility model belongs to the technical field of spring installation, and particularly provides a spring installation tool which is installed and constructed in batches, shortens construction time, improves working efficiency, is low in failure rate, convenient to maintain and repair, simple to operate and accurate in positioning, does not need manual operation intervention in the whole process, and improves work efficiency. And the labor cost and the construction input cost are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of spring installation, in particular to a tool for disassembling and installing batch springs at the bottom of a reactor. Background Art

[0002] Vertical tubular fixed-bed reactors are common in chemical processing equipment, typically consisting of over 10,000 steel tubes. Springs are installed at the bottom of each tube to support the catalyst. The quality of the springs' installation determines the reactor's proper operation. The springs must be installed to a consistent depth within the tubes and must be installed vertically without tilting.

[0003] When installing the existing springs at the bottom of an ethylene oxide reactor, only one spring can be installed at a time. 6,000 to 12,000 springs need to be installed at the bottom of the reactor, which is extremely inefficient. Taking the installation of 12,000 springs as an example, it takes 5 seconds to install each spring, and 17 hours to complete the installation of 12,000 springs. If efficiency needs to be improved, the number of installation operators must be increased. The work inside the ethylene oxide reactor is a confined space. The more people entering, the higher the safety risk. Cross-operation between personnel also poses a safety risk to the operating construction personnel. The working environment is harsh, and dust is generated during the installation of the bottom springs. Long working hours pose a threat to the health of personnel. The labor cost is high, the efficiency is low, and the environmental damage is great. Therefore, a new type of batch disassembly and installation tool for the bottom springs of the reactor is urgently needed to solve the above problems. Utility Model Content

[0004] In order to solve the above-mentioned existing problems, the utility model provides a batch installation and construction, which shortens the construction time, improves work efficiency, has a low failure rate, is easy to maintain and repair, is simple to operate, and has precise positioning. The entire process does not require human intervention, reducing labor costs and construction investment costs. It is a batch disassembly and installation tool for the reactor bottom spring.

[0005] The technical solution adopted by the present invention is as follows: The present invention is a tool for batch disassembly and installation of springs at the bottom of a reactor, comprising a base, a hand-cranked lift, a pneumatic lifting assembly, a batch operation assembly and a leveling structure. The hand-cranked lift is fixed above the base, the pneumatic lifting assembly is fixed above the hand-cranked lift, the batch operation assembly is arranged above the pneumatic lifting assembly, the leveling structure is arranged between the pneumatic lifting assembly and the batch operation assembly, the batch operation assembly comprises an operation support plate, a pneumatic drill and a spring clamp, the operation support plate is arranged above the leveling structure, a number of pneumatic drills are provided, a number of the pneumatic drills are fixed above the operation support plate, and the spring clamp is arranged at the output end of the pneumatic drill.

[0006] Furthermore, the pneumatic lifting assembly includes a telescopic cylinder, a scissors-type structure, a linkage plate, a top plate and a guide rod. The telescopic cylinder is fixedly connected to the upper end of the hand lifter. The scissors-type structure is symmetrically arranged on both sides of the upper end of the telescopic cylinder. The lower end of the scissors-type structure is hinged to the side wall of the telescopic cylinder. The linkage plate is arranged between the two scissors-type structure brackets and connected to the output end of the telescopic cylinder. The center of the scissors-type structure is located at the hinge of the linkage plate. The top plate is arranged above the scissors-type structure. The upper end of the scissors-type structure is hinged to the top plate. The guide rods are symmetrically fixed below the two ends of the top plate. The lower end of the guide rod passes through the linkage plate.

[0007] Furthermore, the leveling structure includes a support rod and a telescopic rod, and the support rod and the telescopic rod are symmetrically arranged below the two ends of the operating support plate. The support rod and the telescopic rod are symmetrically inclined, and the upper and lower ends of the support rod and the telescopic rod are hinged to the operating support plate and the top plate respectively.

[0008] Furthermore, an infrared positioning sensor is fixedly provided above one end of the operation support plate, a limit switch is fixedly provided at the center of the operation support plate, and the limit switch is arranged between the pneumatic drills.

[0009] Furthermore, a level is provided above the middle of the operation support plate, and the level is provided on one side of the limit switch.

[0010] Furthermore, a plurality of self-locking rollers are fixedly provided under the base.

[0011] Furthermore, the pneumatic drill and the telescopic cylinder share a common air source, and the pneumatic drill is started when the telescopic cylinder is extended.

[0012] The beneficial effects achieved by the utility model using the above structure are as follows:

[0013] 1. Batch installation of springs greatly shortens the spring installation construction time, improves work efficiency, and provides conditions for the company to produce in advance.

[0014] 2. Shorten the working time of construction workers in confined spaces, reduce the safety risks of construction workers, and also reduce the safety risks of construction units.

[0015] 3. Reducing the number of construction workers entering confined spaces while improving work efficiency means that construction in harsh environments reduces physical harm to construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the batch removal and installation tool for the reactor bottom spring proposed for this solution;

[0017] Figure 2 Front view of the batch removal and installation tool for the reactor bottom spring proposed for this solution;

[0018] Figure 3 A three-dimensional diagram of the batch operation components of the batch removal and installation tool for the reactor bottom spring proposed for this solution;

[0019] Figure 4 A perspective view of the pneumatic lift assembly of the proposed batch removal and installation tool for reactor bottom springs.

[0020] The accompanying drawings are provided to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: 1. Base, 2. Hand-cranked lift, 3. Pneumatic lift assembly, 4. Batch operation assembly, 5. Leveling structure, 6. Operation support plate, 7. Pneumatic drill, 8. Spring clamp, 9. Telescopic cylinder, 10. Scissor structure, 11. Linkage plate, 12. Top plate, 13. Guide rod, 14. Support rod, 15. Telescopic rod, 16. Infrared positioning sensor, 17. Limit switch, 18. Level, 19. Self-locking roller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] like Figures 1 to 3 As shown, the batch disassembly and installation tool for the reactor bottom spring proposed in this scheme includes a base 1, a hand lift 2, a pneumatic lifting assembly 3, a batch operation assembly 4 and a leveling structure 5. The hand lift 2 is fixed above the base 1, the pneumatic lifting assembly 3 is fixed above the hand lift 2, the batch operation assembly 4 is arranged above the pneumatic lifting assembly 3, and the leveling structure 5 is arranged between the pneumatic lifting assembly 3 and the batch operation assembly 4. The batch operation assembly 4 includes an operation support plate 6, a pneumatic drill 7 and a spring clamp 8. The operation support plate 6 is arranged above the leveling structure 5. There are several pneumatic drills 7, and several of the pneumatic drills 7 are fixed above the operation support plate 6. The spring clamp 8 is arranged at the output end of the pneumatic drill 7.

[0023] like Figure 1 、 Figure 2 and Figure 4As shown, the pneumatic lifting assembly 3 includes a telescopic cylinder 9, a scissors-fork structure 10, a linkage plate 11, a top plate 12 and a guide rod 13. The telescopic cylinder 9 is fixedly connected to the upper end of the hand lifter 2. The scissors-fork structure 10 is symmetrically arranged on both sides of the upper end of the telescopic cylinder 9. The lower end of the scissors-fork structure 10 is hinged to the side wall of the telescopic cylinder 9. The linkage plate 11 is arranged between the two scissors-fork structure 10 brackets and is connected to the output end of the telescopic cylinder 9. The center of the scissors-fork structure 10 is hinged to the linkage plate 11. The top plate 12 is arranged above the scissors-fork structure 10. The upper end of the scissors-fork structure 10 is hinged to the top plate 12. The guide rods 13 are symmetrically fixed below the two ends of the top plate 12, and the lower end of the guide rod 13 passes through the linkage plate 11.

[0024] like Figure 1 and Figure 2 As shown, the leveling structure 5 includes a support rod 14 and a telescopic rod 15. The support rod 14 and the telescopic rod 15 are symmetrically arranged below the two ends of the operating support plate 6. The support rod 14 and the telescopic rod 15 are symmetrically inclined. The upper and lower ends of the support rod 14 and the telescopic rod 15 are hinged to the operating support plate 6 and the top plate 12 respectively.

[0025] Among them, an infrared positioning sensor 16 is fixedly provided above one end of the operation support plate 6, a limit switch 17 is fixedly provided at the center of the operation support plate 6, the limit switch 17 is arranged between the pneumatic drill 7, a spirit level 18 is provided above the middle part of the operation support plate 6, and the spirit level 18 is arranged on one side of the limit switch 17. A number of self-locking rollers 19 are fixedly provided under the base 1. The pneumatic drill 7 and the telescopic cylinder 9 share an air source, and the pneumatic drill 7 starts when the telescopic cylinder 9 is extended.

[0026] During specific use, the spring is placed on the spring clamp 8, and the self-locking roller 19 under the base 1 drives the batch disassembly and installation tools to move to the specified position. At this time, the self-locking roller 19 is locked to prevent the bottom from rotating when the pneumatic drill 7 rotates. The infrared positioning sensor 16 detects the bottom position of the reactor, which makes it convenient to align the spring with the bottom of the reactor for precise positioning.

[0027] The height is adjusted by the hand-cranked lift 2, and at the same time, the telescopic rod 15 is extended and retracted to drive the operating support plate 6 to fine-tune the angle, thereby adjusting the operating support plate 6 to a horizontal position, so that the spirit level 18 displays a horizontal level. At this time, the telescopic cylinder 9 pushes upward, and the telescopic cylinder 9 drives the linkage plate 11 to move upward. The linkage plate 11 drives the scissor structure 10 to deform, and the upper end of the scissor structure 10 drives the top plate 12 to rise. During the lifting process of the top plate 12, the guide rod 13 is driven to pass through the linkage plate 11 to move. The top plate 12 pushes the batch operation component 4 close to the bottom of the reactor. The telescopic cylinder 9 extends and drives the pneumatic drill 7 to rotate. The rotating pneumatic drill 7 drives the spring to screw the spring into the reactor until the limit switch 17 touches the bottom wall of the reactor. At this time, the telescopic cylinder 9 retracts and the pneumatic drill 7 also stops rotating.

[0028] The pneumatic drill 7 is individually removable for easy replacement in the event of a malfunction. The pusher section supports various pneumatic drill 7 configurations. Two pneumatic drill 7 units can be added, allowing for simultaneous installation of up to 30 springs. This equipment is versatile and can be used for bottom sandblasting. Simply replace the rotating mechanism with a spray gun. It can also be used to extract catalyst supports from the bottom by replacing the rotating mechanism with a catalyst extraction device.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A batch removal and installation tool for reactor bottom springs, characterized by: It includes a base, a hand-cranked lift, a pneumatic lifting assembly, a batch operation assembly and a leveling structure. The hand-cranked lift is fixedly mounted above the base, the pneumatic lifting assembly is fixedly mounted above the hand-cranked lift, the batch operation assembly is arranged above the pneumatic lifting assembly, and the leveling structure is arranged between the pneumatic lifting assembly and the batch operation assembly. The batch operation assembly includes an operation support plate, a pneumatic drill and a spring clamp. The operation support plate is arranged above the leveling structure. There are several pneumatic drills, and several of the pneumatic drills are fixedly mounted above the operation support plate. The spring clamp is arranged at the output end of the pneumatic drill.

2. The batch removal and installation tool for reactor bottom springs according to claim 1, characterized in that: The pneumatic lifting assembly includes a telescopic cylinder, a scissors-type structure, a linkage plate, a top plate and a guide rod. The telescopic cylinder is fixedly connected to the upper end of the hand-cranked lift. The scissors-type structure is symmetrically arranged on both sides of the upper end of the telescopic cylinder. The lower end of the scissors-type structure is hinged to the side wall of the telescopic cylinder. The linkage plate is arranged between two scissors-type structure brackets and connected to the output end of the telescopic cylinder. The center of the scissors-type structure is hinged to the linkage plate. The top plate is arranged above the scissors-type structure. The upper end of the scissors-type structure is hinged to the top plate. The guide rods are symmetrically fixed below the two ends of the top plate. The lower end of the guide rod passes through the linkage plate.

3. The batch removal and installation tool for reactor bottom springs according to claim 1, characterized in that: The leveling structure includes a support rod and a telescopic rod. The support rod and the telescopic rod are symmetrically arranged below the two ends of the operating support plate. The support rod and the telescopic rod are symmetrically inclined. The upper and lower ends of the support rod and the telescopic rod are hinged to the operating support plate and the top plate respectively.

4. The batch removal and installation tool for reactor bottom springs according to claim 1, characterized in that: An infrared positioning sensor is fixedly arranged above one end of the operation support plate, and a limit switch is fixedly arranged at the center of the operation support plate. The limit switch is arranged between the pneumatic drills.

5. The batch removal and installation tool for reactor bottom springs according to claim 4, characterized in that: A level is provided above the middle of the operation support plate, and the level is provided on one side of the limit switch.

6. The batch removal and installation tool for reactor bottom springs according to claim 1, characterized in that: A plurality of self-locking rollers are fixedly arranged under the base.

7. The batch removal and installation tool for reactor bottom springs according to claim 2, characterized in that: The pneumatic drill and the telescopic cylinder share a common air source.

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