Catalytic cracking unit reactor riser nozzle dismounting tool

Abstract

The utility model belongs to the field of petrochemical engineering devices, and relates to a catalytic cracking device reactor riser nozzle dismounting tool which comprises a vibration motor, a connecting plate is fixedly connected to the vibration motor, a telescopic assembly is arranged on the connecting plate, and a hanging piece is arranged on the telescopic assembly. The time for welding a tool on a nozzle and a sleeve and installing a jack, a chain block and other structures is shortened, a large amount of labor cost and material cost are saved, manual work is replaced by the vibration motor, the tool is firmly installed, the vibration motor is started for automatic dismantling, the safety risk of construction operation is reduced, and the working efficiency is improved. Meanwhile, the vibration motor and the nozzle can be hung on the sleeve after being pulled out through the hanging piece and the telescopic assembly and cannot fall off suddenly to cause damage.

Description

Technical Field

[0001] The utility model belongs to the field of petrochemical devices, and relates to a dismounting tool for a riser nozzle of a catalytic cracking unit reactor. Background Art

[0002] The disassembly and assembly maintenance of the riser nozzle of the catalytic cracking unit reactor in the petrochemical industry is a maintenance task that must be carried out during the shutdown of each operation cycle. With the development of the industry, the integration of refining and chemical production has been continuously expanded, the scale of the catalytic cracking unit has become larger and larger, and the number and diameter of the riser nozzles of the reactor have also been continuously increasing. During the maintenance process of the nozzles, especially the raw material oil nozzles and slurry nozzles, after long-term operation, the oil and gas and catalyst between the nozzle and the casing gap penetrate and coke seriously. Although the production and installation of the nozzles are also continuously researched and developed, the installation process still relies on asbestos ropes, etc. to fill the nozzle gap, and it is difficult to ensure the coking situation during operation. Coupled with the dense nozzles and narrow construction space, the difficulty of removing the nozzles is very high.

[0003] The existing technology has the following technical defects:

[0004] At present, manual welding is used in the removal process, and various methods such as using jacks, chain hoists, wedges, sledgehammers, and electric heating are used to knock and pull the nozzles. When encountering serious coking, the removal time can reach up to 1 week, the construction efficiency is low, the safety risk is high, and the labor intensity of the operators is large. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the existing technology and provide a dismounting tool for a riser nozzle of a catalytic cracking unit reactor.

[0006] The dismounting tool for a riser nozzle of a catalytic cracking unit reactor described in the utility model includes a vibration motor, a connecting plate is fixedly connected to the vibration motor, a telescopic assembly is arranged on the connecting plate, and a hanging member is arranged on the telescopic assembly.

[0007] Working Process or Working Principle:

[0008] When in use, first remove the connecting bolts between the nozzle and the casing, then hang the hanging member on the protrusion on the casing, and then fixedly connect the connecting plate to the flange at the rear end of the nozzle through bolts. Adjust the telescopic assembly to the shortest state, then tighten the hanging member, and then start the vibration motor, and at the same time use electric heating to heat the nozzle and the casing.

[0009] The telescopic assembly includes outer telescopic rods arranged on both sides of the connecting plate. An inner telescopic rod is slidably connected inside the outer telescopic rod. The end of the inner telescopic rod is connected to the hanging member. When the vibration motor vibrates and disassembles the nozzle, it will gradually pull the nozzle outwards. At this time, the hanging member is in a taut state, and the inner telescopic rod also extends as the nozzle is pulled out, without being affected by the hanging member, so that the nozzle can be pulled out smoothly.

[0010] The described outer telescopic rod is fixedly connected with a rotating block, and the rotating block is rotatably connected with the connecting plate. By rotating, sleeves at various angles can be disassembled.

[0011] The outer telescopic rod is provided with a sliding groove, and the inner telescopic rod is provided with a sliding block corresponding to the sliding groove. The cooperation of the sliding groove and the sliding block plays a limiting role to prevent the inner telescopic rod from falling off.

[0012] The end of the inner telescopic rod is provided with a locking assembly. The hanging part is adjusted to a relatively taut state through the locking assembly and then locked. The locking assembly can be a ratchet assembly or a clamping interface assembly, etc.

[0013] The hanging part is a cord, and it is fixed by hanging the cord on the protrusion above the sleeve.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The present utility model reduces the time for welding workpieces, installing jacks and chain hoists and other structures on the nozzle and the sleeve, saving a large amount of labor costs and material costs. The vibration motor replaces manual labor, the workpiece is firmly installed, and the vibration motor is automatically removed by starting it, reducing the safety risk of construction operations. At the same time, by using the hanging part and the telescopic assembly, the vibration motor and the nozzle can be hung on the sleeve after being pulled out, and will not suddenly fall and cause damage. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of an embodiment of the present utility model,

[0017] Figure 2 is a schematic working assembly diagram of an embodiment of the present utility model.

[0018] In the figure: 1, cord; 2, inner telescopic rod; 3, outer telescopic rod; 4, rotating block; 5, vibration motor; 6, connecting plate; 7, locking assembly; 8, nozzle; 9, sleeve; 10, riser pipe; 11, sliding groove; 12, sliding block. Detailed Embodiments

[0019] Embodiment 1

[0020] As Figures 1 to 2As shown in the figure, the lifting pipe nozzle removal tooling for the catalytic cracking unit reactor of the present utility model includes a vibration motor 5. A connecting plate 6 is fixedly connected to the vibration motor 5. A telescopic assembly is provided on the connecting plate 6, and a hanging member is provided on the telescopic assembly. The telescopic assembly includes outer telescopic rods 3 arranged on both sides of the connecting plate 6. An inner telescopic rod 2 is slidably connected inside the outer telescopic rod 3. The end of the inner telescopic rod 2 is connected to the hanging member. The outer telescopic rod 3 is fixedly connected with a rotating block 4. The rotating block 4 is rotatably connected to the connecting plate 6. By rotating, sleeves 9 at various angles can be used for disassembly. A sliding groove 11 is provided on the outer telescopic rod 3, and a sliding block 12 corresponding to the sliding groove 11 is provided on the inner telescopic rod 2. The cooperation of the sliding groove 11 and the sliding block 12 plays a limiting role to prevent the inner telescopic rod 2 from falling off. A locking assembly 7 is provided at the end of the inner telescopic rod 2. The hanging member is adjusted to a relatively taut state through the locking assembly 7 and then locked. The locking assembly 7 can be a ratchet assembly or a clamping interface assembly, etc. The hanging member is a rope belt 1, and it is fixed by hanging the rope belt 1 on the protrusion above the sleeve 9.

[0021] Working process or working principle:

[0022] During use, first remove the connecting bolts between the nozzle 8 and the sleeve 9, then hang the rope belt 1 on the protrusion of the sleeve 9, and then fixedly connect the connecting plate 6 to the flange at the rear end of the nozzle 8 through bolts. Compress the inner telescopic rod 2 to the shortest state inside the outer telescopic rod 3, and then straighten, fix and lock the rope belt 1 through the locking assembly 7. Then start the vibration motor 5, and at the same time use electric heating to heat the nozzle 8 and the sleeve 9 to soften the coking.

[0023] The present utility model reduces the time for welding tooling on the nozzle 8 and the sleeve 9, installing structures such as jacks and chain hoists, saving a large amount of labor costs and material costs. Instead of manual labor through the vibration motor 5, the tooling is firmly installed and automatically removed by turning on the vibration motor 5, reducing the safety risks of construction operations. At the same time, the use of the hanging member and the telescopic assembly can make the vibration motor and the nozzle hang on the sleeve after being pulled out, and will not suddenly fall and cause damage.

[0024] In the present utility model, the description of the direction and relative position relationship of the structure, such as the description of front, back, left, right, up and down, does not constitute a limitation to the present utility model, but is only for the convenience of description.

Claims

1. A tool for removing the nozzle of a riser of a reactor of a catalytic cracking unit, characterized in that: It comprises a vibration motor (5), a connecting plate (6) is fixedly connected to the vibration motor (5), a telescopic component is provided on the connecting plate (6), and a hanging part is provided on the telescopic component; The telescopic assembly comprises an outer telescopic rod (3) arranged on both sides of the connecting plate (6), an inner telescopic rod (2) is slidably connected inside the outer telescopic rod (3), and the end of the inner telescopic rod (2) is connected to the hanging member; The end of the inner telescopic rod (2) is provided with a locking assembly (7); The hanging piece is a rope belt (1).

2. The catalytic cracking unit reactor riser nozzle removal tool according to claim 1, characterized in that: The outer telescopic rod (3) is fixedly connected to a rotating block (4), and the rotating block (4) is rotatably connected to a connecting plate (6).

3. The catalytic cracking unit reactor riser nozzle removal tool according to claim 2, characterized in that: The outer telescopic rod is provided with a sliding groove (11), and the inner telescopic rod (2) is provided with a sliding block (12) corresponding to the sliding groove.

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