An installation assembly for a radiant coil of a cracking furnace

Abstract

The utility model relates to the technical field of cracking furnace, concretely is a kind of installation assembly of cracking furnace radiation coil, it includes: radiation coil main body, shelf plate, mounting plate;Radiation coil main body wall equidistantly connected and arranged shelf plate is fixedly sleeved and is arranged limit board in both ends, mounting plate side wall is connected and arranged with mounting bracket, the shelf plate is set on mounting bracket by auxiliary assembly;By setting ball contact on the inclined plane of U-shaped backing plate end wall of shelf plate, auxiliary shelf board end portion is connected into the recess of U-shaped backing plate and makes limit board and U-shaped backing plate joint, bolt insertion rod is inserted into the slot and is connected with the side wall of shelf plate Limiting, after rotating knob screw controls the end cap joint of limit circle block and bolt, fixed knob screw position, completes radiation coil main body installation;Simple operation, without the aid of auxiliary tool, realize the quick installation of radiation coil main body, improve the installation maintenance efficiency of radiation coil main body.

Description

Technical Field

[0001] This utility model relates to the field of pyrolysis furnace technology, specifically to an installation assembly for a pyrolysis furnace radiant coil. Background Technology

[0002] A tubular pyrolysis furnace is a device that carries out hydrocarbon pyrolysis reactions within furnace tubes. It mainly consists of a radiant heating surface (furnace chamber), a convective heating surface, a chimney, and nozzles supplying the heat source. Fuel oil is sprayed into the furnace chamber through the nozzles and burned. The resulting flue gas flows through the convection chamber and exits through the chimney. Furnace tubes are installed in the radiant and convective sections. The feedstock oil is heated to the required temperature within the furnace tubes to undergo a pyrolysis reaction, producing pyrolysis gas (olefins). The pyrolysis gas is then rapidly cooled before entering a separation unit. The furnace tubes are made of cast alloy steel.

[0003] Chinese patent document CN220642987U discloses a novel pyrolysis furnace tube, including a first-pass tube, a bend, and a second-pass tube. The bend is a spatial U-shaped structure with a small radius of curvature. The first-pass tube and the second-pass tube are parallel to each other and connected to both ends of the bend. In the embodiments of this application, the above-mentioned novel pyrolysis furnace tube, with its spatial U-shaped structure, can not only be used to pyrolyze LPG, light hydrocarbons, and liquid feedstocks such as naphtha, kerosene, and hydrotreated tail oil, but also to pyrolyze light gas feedstocks such as ethane during coke removal in other gas pyrolysis furnaces. The pyrolysis feedstock enters the first-pass tube from the inlet radiant coil through the lifting lug bend. After entering the first-pass tube, the feedstock passes through the bend and the second-pass tube, and then discharges the pyrolysis products at the outlet radiant coil. The structure is simple and achieves high ethylene selectivity in feedstock pyrolysis. At the same time, the diameter of the second-pass tube is larger than the diameter of the first-pass tube and the bend, thereby ensuring smooth discharge of pyrolysis products as the pyrolysis products in the furnace tube gradually increase, further improving the operating cycle of the pyrolysis furnace.

[0004] However, in the above-mentioned solutions and existing technologies, the radiant coils of the pyrolysis furnace are usually fixed and installed by welding or by tightening bolts and nuts with the help of auxiliary tools. The operation is time-consuming and affects the installation efficiency of the radiant coils, which needs to be improved and optimized.

[0005] Therefore, this utility model proposes an installation assembly for a radiant coil of a pyrolysis furnace to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an installation assembly for a radiant coil of a pyrolysis furnace to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an installation assembly for a radiant coil of a pyrolysis furnace, comprising: a radiant coil body, a frame plate, and an installation plate; the frame plate is equidistantly connected to the wall of the radiant coil body, the two sides of the frame plate are beveled, and limit plates are fixedly sleeved at both ends of the frame plate; an installation bracket is connected to the side wall of the installation plate, and an installation hole is provided on the side wall of the installation plate; the frame plate is mounted on the installation bracket by an auxiliary component, the auxiliary component including a U-shaped support plate, a pin, and a limit block.

[0008] Preferably, the mounting bracket is provided with diagonal bracing rods connected to the mounting plate on both sides, and a U-shaped support plate is provided at the end of the mounting bracket. The two end walls of the U-shaped support plate are set with slopes, and ball bearings are equidistantly and movably embedded on the sloped end walls of the U-shaped support plate.

[0009] Preferably, the U-shaped tray has a slot on its side wall, the frame plate is snapped into the groove of the U-shaped tray, and the limiting plate is snapped into the U-shaped tray.

[0010] Preferably, the slot is provided with a pin, the pin rod is engaged with the frame plate, and the pin cap is engaged with the side wall of the U-shaped support plate.

[0011] Preferably, a protruding plate is connected to the side wall of the U-shaped support plate, and a knob screw is threadedly connected to the side wall of the protruding plate. A limiting block is connected to the end of the knob screw, and the limiting block is engaged with the end cap of the pin.

[0012] Preferably, the knob screw has a rotating plate at its knob end, a first magnetic block is fixedly embedded in the side wall of the rotating plate, a slot is opened on the side wall of the U-shaped support plate, a second magnetic block is fixedly embedded in the side wall of the slot, the rotating plate engages with the slot, and the first magnetic block and the second magnetic block attract each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By setting ball bearings on the inclined surface of the end wall of the frame plate and the U-shaped support plate, the end of the auxiliary frame plate is engaged in the groove of the U-shaped support plate, and the limiting plate is engaged with the U-shaped support plate. The pin is inserted into the slot and engaged with the side wall of the frame plate for limitation. Rotating the knob screw controls the movement of the limiting block and engages with the end cap of the pin to fix the position of the knob screw, thus completing the installation of the radiant coil body. The operation is simple and does not require auxiliary tools, enabling quick installation of the radiant coil body and improving the installation and maintenance efficiency of the radiant coil body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A magnified view of a portion of the image;

[0017] Figure 3 This is a schematic diagram of the frame structure of this utility model;

[0018] Figure 4 This is an exploded view of the U-shaped tray structure connection of this utility model;

[0019] Figure 5 This is a schematic diagram of the knob screw structure connection of this utility model.

[0020] In the diagram: Radiant coil body 1, frame plate 2, limiting plate 3, mounting plate 4, mounting bracket 5, diagonal brace 6, U-shaped support plate 7, ball bearing 8, slot 9, pin 10, protruding plate 11, knob screw 12, limiting round block 13, rotating plate 14, first magnetic block 15, slot 16, second magnetic block 17. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-5 This utility model provides a technical solution: an installation assembly for a radiant coil of a pyrolysis furnace, comprising: a radiant coil body 1, a frame plate 2, and an installation plate 4; the frame plate 2 is equidistantly connected to the wall of the radiant coil body 1, the two sides of the frame plate 2 are beveled, and the two ends of the frame plate 2 are fixedly sleeved with limit plates 3; the side wall of the installation plate 4 is connected to an installation bracket 5, and the side wall of the installation plate 4 is provided with installation holes; the frame plate 2 is mounted on the installation bracket 5 through an auxiliary component.

[0023] Mounting plate 4 is fixedly installed on the pyrolysis furnace by passing fixing bolts through the mounting holes on the side wall of mounting plate 4.

[0024] The mounting bracket 5 is connected to the mounting plate 4 on both sides by diagonal bracing rods 6. The end of the mounting bracket 5 is connected to a U-shaped support plate 7. The two ends of the U-shaped support plate 7 in the auxiliary component are set with inclined surfaces. Ball bearings 8 are equidistantly and movably embedded on the inclined surfaces of the ends of the U-shaped support plate 7.

[0025] The stability of the mounting bracket 5 is improved by setting diagonal bracing rods 6. Ball bearings 8 are set on the inclined surface of the end wall of the U-shaped support plate 7 to cooperate with the inclined surface of the two sides of the support plate 2. The end of the auxiliary support plate 2 is inserted into the groove of the U-shaped support plate 7.

[0026] The U-shaped support plate 7 has a slot 9 on its side wall, the frame plate 2 is snapped into the groove of the U-shaped support plate 7, and the limiting plate 3 is snapped into the U-shaped support plate 7.

[0027] The bracket 2 is snapped into the groove of the U-shaped support plate 7, so that the U-shaped support plate 7 can support the bracket 2 to position and install the radiant coil body 1. The limiting plate 3 is snapped into the U-shaped support plate 7 to limit the movement and prevent left and right swaying.

[0028] A pin 10 is inserted into the slot 9. The insertion rod of the pin 10 is engaged with the frame plate 2, and the end cap of the pin 10 is engaged with the side wall of the U-shaped support plate 7.

[0029] The pin 10 is inserted into the slot 9 and engages with the side wall of the frame plate 2, thereby limiting the frame plate 2 and preventing the frame plate 2 from detaching from the groove of the U-shaped support plate 7.

[0030] A protruding plate 11 is connected to the side wall of the U-shaped support plate 7. A knob screw 12 is threadedly connected to the side wall of the protruding plate 11. A limiting block 13 is connected to the end of the knob screw 12. The limiting block 13 is engaged with the end cap of the pin 10.

[0031] Rotating the knob screw 12 controls the movement of the limit block 13, which engages with the end cap of the pin 10 to ensure that the pin 10 is stably inserted into the slot 9 and the limit bracket 2.

[0032] The knob screw 12 has a rotating plate 14 at its knob end. A first magnetic block 15 is fixedly embedded in the side wall of the rotating plate 14. A slot 16 is opened on the side wall of the U-shaped support plate 7. A second magnetic block 17 is fixedly embedded in the side wall of the slot 16. The rotating plate 14 and the slot 16 are engaged, and the first magnetic block 15 and the second magnetic block 17 attract each other.

[0033] Rotating the rotating plate 14 into the slot 16 causes the first magnetic block 15 and the second magnetic block 17 to attract each other, preventing the knob screw 12 from becoming loose.

[0034] Working principle: When installing the radiant coil body 1 of the pyrolysis furnace, the support plate 2 is moved to the opening position of the U-shaped support plate 7 and then moved inward. The inclined surface of the support plate 2 contacts the ball bearing 8 on the inclined surface of the end wall of the U-shaped support plate 7. The end of the auxiliary support plate 2 is engaged in the groove of the U-shaped support plate 7, so that the limiting plate 3 is engaged with the U-shaped support plate 7. Then, the insert of the pin 10 is inserted into the slot 9 and engaged with the side wall of the support plate 2. After the pin is engaged, the knob screw 12 is rotated to control the movement of the limiting block 13 and engage with the end cap of the pin 10 to prevent the pin 10 from disengaging. Then, the rotating plate 14 is rotated and engaged in the slot 16, so that the first magnetic block 15 and the second magnetic block 17 attract each other to fix the position of the knob screw 12, thus completing the installation of the radiant coil body 1 in the pyrolysis furnace. The operation is simple and does not require auxiliary tools, so as to achieve quick installation of the radiant coil body 1 and improve the installation and maintenance efficiency of the radiant coil body 1.

[0035] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An installation assembly for a radiant coil of a cracking furnace, comprising: The radiant coil body (1), the frame plate (2), and the mounting plate (4) are provided. The frame plate (2) is equidistantly connected on the wall of the radiant coil body (1). The two sides of the frame plate (2) are set with bevels. Limiting plates (3) are fixedly sleeved at both ends of the frame plate (2). The mounting plate (4) is connected with the mounting bracket (5) and the mounting plate (4) is provided with mounting holes for installation. The feature is that the frame plate (2) is set on the mounting bracket (5) by an auxiliary component, which includes a U-shaped support plate (7), a pin (10), and a limiting block (13).

2. The mounting assembly for a pyrolysis furnace radiant coil according to claim 1, characterized in that: The mounting bracket (5) is connected to the mounting plate (4) on both sides by diagonal bracing rods (6), and the mounting bracket (5) is connected to the end by a U-shaped support plate (7). The two ends of the U-shaped support plate (7) are inclined, and ball bearings (8) are equidistantly and movably embedded on the inclined end wall of the U-shaped support plate (7).

3. The mounting assembly for a pyrolysis furnace radiant coil according to claim 2, characterized in that: The U-shaped tray (7) has a slot (9) on its side wall, the frame plate (2) is snapped into the groove of the U-shaped tray (7), and the limiting plate (3) is snapped into the U-shaped tray (7).

4. The mounting assembly for a pyrolysis furnace radiant coil according to claim 3, characterized in that: A pin (10) is inserted into the slot (9). The pin (10) is engaged with the bracket plate (2), and the end cap of the pin (10) is engaged with the side wall of the U-shaped support plate (7).

5. The mounting assembly for a pyrolysis furnace radiant coil according to claim 4, characterized in that: A protruding plate (11) is connected to the side wall of the U-shaped support plate (7), and a knob screw (12) is threadedly connected to the side wall of the protruding plate (11). A limiting block (13) is connected to the end of the knob screw (12), and the limiting block (13) is engaged with the end cap of the pin (10).

6. The mounting assembly for a pyrolysis furnace radiant coil according to claim 5, characterized in that: The knob screw (12) has a rotating plate (14) at the knob end. A first magnetic block (15) is fixedly embedded on the side wall of the rotating plate (14). A slot (16) is opened on the side wall of the U-shaped support plate (7). A second magnetic block (17) is fixedly embedded on the side wall of the slot (16). The rotating plate (14) and the slot (16) are engaged. The first magnetic block (15) and the second magnetic block (17) attract each other.

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