External heat remover for heavy oil catalytic cracking

Abstract

The utility model provides an external cooler for catalytic cracking of heavy oil, and belongs to the technical field of external coolers. The external heat collector for heavy oil catalytic cracking comprises an external heat collector body and an assembly supporting mechanism, shell covers are installed on the two sides of the external heat collector body, outer connectors are installed on the outer sides of the shell covers, a supporting seat is movably connected to the left side of the bottom of the external heat collector body, a supporting plate is movably connected to the left side of the supporting seat, and a translation opening is formed in the left side of the supporting plate. The left side of the supporting seat is fixedly connected with a translation column located in the translation opening, the supporting and reinforcing mechanism is arranged on the front side of the inner wall of the translation opening, and by arranging the assembling and supporting mechanism, a medium for stably supporting the space between the shell cover and the external heat collector can be formed at the bottom of the external heat collector; therefore, a user can conveniently support, stabilize and prevent deviation between the shell cover and the external heat collector in the assembling process, and the assembling operation stability and convenience of the shell cover and the external heat collector are improved.

Description

Technical Field

[0001] This utility model relates to the field of external heat exchanger technology, and more specifically, to an external heat exchanger for heavy oil catalytic cracking. Background Technology

[0002] The external heat exchanger is a key device in heavy oil catalytic cracking units used to remove excess heat from the catalyst. It is an external heat recovery device that recovers heat through indirect heat exchange between the catalyst and the heat transfer medium. The external heat exchanger typically consists of a shell, a shell cover, an external connector, a heat transfer tube bundle, and catalyst inlet and outlet. When the external heat exchanger is working, the high-temperature catalyst from the regenerator enters the tube through a slide valve and flows down the tube under the action of gravity and fluidizing air. Cooling water is introduced into the outer side of the tube and exchanges heat with the catalyst through the tube wall in a counter-current manner. The water absorbs heat and vaporizes into medium-pressure steam. After heat exchange, the catalyst flows out from the bottom of the tube and returns to the system. By adjusting the catalyst flow rate and the water pressure outside the tube, the thermal balance control of the regenerator is achieved. It is suitable for heavy feedstock processing scenarios that require a large amount of heat recovery. Since the assembly connection position of the shell cover and the shell directly affects the ease of connection, it is necessary to carry out assembly support work.

[0003] In related technologies, during the use of external heat exchangers, multiple bolts are generally used to connect and fasten the shell cover to the shell, and the installation and connection work between the shell cover and the shell is carried out to enable its use.

[0004] However, in the current use of external heat exchangers, before connecting the shell cover and the shell with bolts, it is necessary to ensure that the shell cover and the shell are aligned. However, the shell cover is usually lifted by external lifting equipment during assembly, which makes it very easy for the shell cover to shift during the assembly process, affecting the stability and convenience of the assembly operation of the external heat exchanger. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an external heat exchanger for heavy oil catalytic cracking that overcomes or at least partially solves the above technical problems.

[0006] This utility model is implemented as follows:

[0007] This utility model provides an external heat exchanger for heavy oil catalytic cracking, including an external heat exchanger, with a shell cover installed on both sides of the external heat exchanger, and an external connector installed on the outer side of the shell cover;

[0008] Assembly support mechanism, the assembly support mechanism comprising:

[0009] Support base; the support base is movably connected to the left side of the bottom of the external heat exchanger, and a support plate is movably connected to the left side of the support base;

[0010] Translation opening; the translation opening is located on the left side of the support plate, and a translation column located inside the translation opening is fixedly connected to the left side of the support base;

[0011] A support and reinforcement mechanism is provided on the front side of the inner wall of the translation port.

[0012] In a preferred embodiment, the support and reinforcement mechanism includes a reinforcement opening, a reinforcement plate, and a reinforcement groove. The reinforcement opening is located on the front side of the inner wall of the translation opening, the reinforcement plate is movably connected to the inside of the reinforcement opening, the reinforcement groove is located on the rear side of the inner wall of the translation opening, and the rear side of the reinforcement plate is located inside the reinforcement groove.

[0013] In a preferred embodiment, the top of the translation column is provided with a positioning opening, and the bottom of the reinforcing plate is fixedly connected with a positioning strip located inside the positioning opening.

[0014] In a preferred embodiment, a magnetic strip is embedded in the rear side of the reinforcing plate, and a magnetic strip that is magnetically connected to the magnetic strip is embedded in the rear side of the inner wall of the reinforcing groove.

[0015] In a preferred embodiment, a limiting opening is provided at the top left side of the reinforcing plate, and a limiting bolt that is threadedly connected to the support plate is movably connected inside the limiting opening.

[0016] In a preferred embodiment, an outer support column is provided on the left side of the support base, and fixing bolts that are threadedly connected to the translation column are installed on the top of both sides of the outer support column.

[0017] In a preferred embodiment, a connecting groove is provided on the right side of the top of the support base, and a connecting seat located inside the connecting groove is fixedly connected to the bottom of the external heat exchanger.

[0018] In a preferred embodiment, threaded grooves are provided on both sides of the bottom of the connecting seat, and bolts extending through to the outside of the support seat are threaded into the internal threads of the threaded grooves.

[0019] The external heat exchanger for heavy oil catalytic cracking provided by this utility model has the following beneficial effects:

[0020] 1. By setting up an assembly support mechanism, a medium can be formed at the bottom of the external heat exchanger to support and stabilize the shell cover and the external heat exchanger. This allows the user to support and stabilize the shell cover and the external heat exchanger during the assembly process, preventing the shell cover from easily shifting during assembly and causing inconvenience. Therefore, the stability and convenience of assembling the shell cover and the external heat exchanger are improved.

[0021] 2. By setting up a support and reinforcement mechanism, the support plate and the translation column can be reinforced to ensure the position of the support plate during support work. This avoids the situation where the support plate moves downward and it is difficult to maintain the position for support work, thus improving the stability of the support plate during support work.

[0022] 3. By setting positioning ports and positioning strips, the support plate and the translation column can be positioned stably through the reinforcement plate, avoiding positional deviation and positioning difficulties during operation of the support plate, thus improving the positioning convenience of the support plate. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is an overall perspective view provided by an embodiment of the present utility model;

[0025] Figure 2 A right-view perspective three-dimensional structural diagram of the support base provided for an embodiment of this utility model;

[0026] Figure 3 A schematic diagram of the three-dimensional cross-sectional structure of the support plate provided for an embodiment of this utility model;

[0027] Figure 4 A three-dimensional cross-sectional structural diagram of the support base provided for an embodiment of this utility model;

[0028] In the diagram: 1. External heat exchanger; 2. Shell cover; 3. External connector; 4. Support base; 5. Support plate; 6. Translation port; 7. Translation column; 8. Reinforcement port; 9. Reinforcement plate; 10. Reinforcement groove; 11. Positioning port; 12. Positioning strip; 13. Magnetic strip; 14. Magnetic suction strip; 15. Restriction port; 16. Restriction bolt; 17. External support column; 18. Fixing bolt; 19. Connecting groove; 20. Connecting base; 21. Threaded groove; 22. Bolt. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Reference Figures 1-4 This utility model provides a technical solution: an external heat exchanger for heavy oil catalytic cracking, including an external heat exchanger 1 and an assembly support mechanism. A shell cover 2 is installed on both sides of the external heat exchanger 1, and an external connector 3 is installed on the outer side of the shell cover 2. This can form a stable supporting medium between the shell cover 2 and the external heat exchanger 1 at the bottom of the external heat exchanger 1, allowing the user to stabilize and prevent displacement between the shell cover 2 and the external heat exchanger 1 during assembly. This avoids the shell cover 2 easily shifting during assembly, which would cause inconvenience in the assembly operation. Therefore, it improves the stability and convenience of assembling the shell cover 2 and the external heat exchanger 1.

[0031] Reference Figures 1-4 In a preferred embodiment, the assembly support mechanism includes a support base 4, which is movably connected to the left side of the bottom of the external heat exchanger 1. A support plate 5 is movably connected to the left side of the support base 4. A translation port 6 is opened on the left side of the support plate 5. A translation column 7 located inside the translation port 6 is fixedly connected to the left side of the support base 4. A support reinforcement mechanism is set on the front side of the inner wall of the translation port 6. According to the actual needs of assembling the shell cover 2 and the external heat exchanger 1, the support plate 5 can be moved through the translation port 6 in conjunction with the translation base to adjust the support position of the support plate 5. Then, by using external lifting equipment, the shell cover 2 is moved to the top of the support base 4 and the inner side of the support plate 5, and then moved downwards. The top of each component is provided with a support groove. As the cover 2 moves downward, the support base 4 cooperates with the support plate 5 to provide stable support for the cover 2 and the outer connector 3. The support and reinforcement mechanism includes a reinforcement port 8, a reinforcement plate 9, and a reinforcement groove 10. The reinforcement port 8 is opened on the front side of the inner wall of the translation port 6. The reinforcement plate 9 is movably connected inside the reinforcement port 8. The reinforcement groove 10 is opened on the rear side of the inner wall of the translation port 6. The rear side of the reinforcement plate 9 is located inside the reinforcement groove 10, which can provide support and reinforcement between the support plate 5 and the translation column 7, ensuring the position of the support plate 5 during support work and avoiding the situation where the support plate 5 moves downward and it is difficult to maintain the position for support work. Therefore, the support stability of the support plate 5 is improved.

[0032] Reference Figures 2-3In a preferred embodiment, a positioning opening 11 is provided at the top of the translation column 7, and a positioning strip 12 located inside the positioning opening 11 is fixedly connected to the bottom of the reinforcing plate 9. The reinforcing plate 9 can be used to stabilize the positioning between the support plate 5 and the translation column 7, avoiding positional deviation of the support plate 5 during operation and thus improving the positioning convenience of the support plate 5. A magnetic strip 13 is embedded and connected to the rear side of the reinforcing plate 9, and a magnetic strip 14 magnetically connected to the magnetic strip 13 is embedded and connected to the rear side of the inner wall of the reinforcing groove 10. This can perform magnetic positioning between the reinforcing plate 9 and the reinforcing groove 10, preventing the reinforcing plate 9 from detaching from the reinforcing groove 10 during use, thus improving the working stability of the reinforcing plate 9.

[0033] Reference Figures 2-4 In a preferred embodiment, a limiting opening 15 is provided at the top left side of the reinforcing plate 9. A limiting bolt 16, which is threadedly connected to the support plate 5, is movably connected inside the limiting opening 15. This can restrict the movement between the reinforcing plate 9 and the reinforcing opening 8 to prevent separation, thus improving the stability of the reinforcing plate 9. An outer support column 17 is provided on the left side of the support base 4. Fixing bolts 18, which are threadedly connected to the translation column 7, are installed at the top of both sides of the outer support column 17. This can provide stable support for the outer side of the translation column 7, thus improving the stress stability of the translation column 7.

[0034] Reference Figures 2-4 In a preferred embodiment, a connecting groove 19 is provided on the right side of the top of the support base 4, and a connecting seat 20 located inside the connecting groove 19 is fixedly connected to the bottom of the external heat exchanger 1. This provides a medium for preventing the support base 4 from deviating when connecting with the external heat exchanger 1, thus improving the connection effect between the support base 4 and the external heat exchanger 1. Threaded grooves 21 are provided on both sides of the bottom of the connecting seat 20, and bolts 22 that penetrate to the outside of the support base 4 are threaded inside the threaded grooves 21. The connection between the support base 4 and the external heat exchanger 1 can be fastened through the connecting seat 20, thus improving the ease of installation and connection of the support base 4.

[0035] Specifically, the working process or principle of the external heat exchanger for heavy oil catalytic cracking is as follows: During use, according to the actual installation and support requirements of the shell cover 2 and the external heat exchanger 1, the hand-held support plate 5 is moved horizontally outside the horizontal column 7 through the horizontal port 6 to adjust the position between the support plate 5 and the support seat 4. After the support plate 5 is adjusted, the hand-held support plate 5 is moved upward, so that the reinforcing plate 9 moves with the support plate 5 through the reinforcing port 8 to the top of the horizontal column 7, and the positioning strip 12 is aligned with the positioning port 11. Then, the hand-held reinforcing plate 9 is moved backward and inserted into the reinforcing groove 10 to support the... Positioning and reinforcement work is carried out between plate 5 and translation column 7. At this time, magnetic strip 13 follows the reinforcing plate 9 into the reinforcement groove 10 and contacts magnetic strip 14 to perform magnetic positioning work between the reinforcing plate 9 and the reinforcement groove 10. At the same time, positioning strip 12 follows the reinforcing plate 9 into the positioning groove to perform positioning and stabilization work between the support plate 5 and translation column 7. During the movement operation of the reinforcing plate 9, limiting bolt 16 moves inside the limiting port 15 to prevent the reinforcing plate 9 from disengaging from the reinforcement port 8. During this process, outer support column 17 and fixing bolt 18 are engaged to... The outer side of the translation column 7 provides load-bearing support. Simultaneously, bolts 22, along with threaded grooves 21, connect and secure the support base 4 to the external heat exchanger 1 via the connecting seat 20. After the shell cover 2 is lifted by external lifting equipment, it is moved to the top of the support base 4 and positioned on top of the support plate 5. Since both the top of the support base 4 and the top of the support plate 5 have support grooves, as the shell cover 2 moves downwards and contacts the support base 4, the bottom of the outer connector 3 and the surface of the shell cover 2 enter the grooves on the top of the support plate 5 and the support base 4, thus connecting the support plate 5 and the support base. 4. Support and stabilize the shell cover 2 and the external heat exchanger 1. Then, push the shell cover 2 towards the external heat exchanger 1 so that the shell cover 2 and the external heat exchanger 1 come into contact and fit together, so as to perform the assembly and connection operation between the shell cover 2 and the external heat exchanger 1. After the shell cover 2 and the external heat exchanger 1 are assembled, when it is necessary to connect to the external oil catalytic cracking regenerator through the external connector 3 and the pipeline, the position of the support plate 5 can be moved and adjusted to the outside of the external connector 3 to perform the connection and assembly support operation for the external connector 3 to connect and assemble with the external pipeline.

[0036] It should be noted that the external heat exchanger 1, the shell cover 2 and the external connector 3 are all existing devices or equipment, or devices or equipment that can be implemented with existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

Claims

1. An external heat exchanger for heavy oil catalytic cracking, comprising an external heat exchanger (1), wherein a shell cover (2) is installed on both sides of the external heat exchanger (1), and an external connector (3) is installed on the outer side of the shell cover (2), characterized in that ； Assembly support mechanism, the assembly support mechanism comprising: Support base (4); The support base (4) is movably connected to the left side of the bottom of the external heat exchanger (1), and a support plate (5) is movably connected to the left side of the support base (4). Translation port (6); the translation port (6) is opened on the left side of the support plate (5), and the left side of the support base (4) is fixedly connected to the translation column (7) located inside the translation port (6). Support and reinforcement mechanism; the support and reinforcement mechanism is located on the front side of the inner wall of the translation port (6).

2. The external heat exchanger for heavy oil catalytic cracking according to claim 1, characterized in that, The support and reinforcement mechanism includes a reinforcement port (8), a reinforcement plate (9), and a reinforcement groove (10). The reinforcement port (8) is opened on the front side of the inner wall of the translation port (6). The reinforcement plate (9) is movably connected to the inside of the reinforcement port (8). The reinforcement groove (10) is opened on the rear side of the inner wall of the translation port (6). The rear side of the reinforcement plate (9) is located inside the reinforcement groove (10).

3. The external heat exchanger for heavy oil catalytic cracking according to claim 2, characterized in that, The top of the translation column (7) is provided with a positioning port (11), and the bottom of the reinforcing plate (9) is fixedly connected with a positioning strip (12) located inside the positioning port (11).

4. The external heat exchanger for heavy oil catalytic cracking according to claim 2, characterized in that, A magnetic strip (13) is embedded and connected to the rear side of the reinforcing plate (9), and a magnetic strip (14) that is magnetically connected to the magnetic strip (13) is embedded and connected to the rear side of the inner wall of the reinforcing groove (10).

5. The external heat exchanger for heavy oil catalytic cracking according to claim 2, characterized in that, The top left side of the reinforcing plate (9) has a limiting opening (15), and the limiting opening (15) is movably connected to a limiting bolt (16) that is threadedly connected to the support plate (5).

6. The external heat exchanger for heavy oil catalytic cracking according to claim 1, characterized in that, An outer support column (17) is provided on the left side of the support base (4), and a fixing bolt (18) that is threadedly connected to the translation column (7) is installed on the top of both sides of the outer support column (17).

7. The external heat exchanger for heavy oil catalytic cracking according to claim 1, characterized in that, A connecting groove (19) is provided on the right side of the top of the support base (4), and a connecting seat (20) located inside the connecting groove (19) is fixedly connected to the bottom of the external heat exchanger (1).

8. The external heat exchanger for heavy oil catalytic cracking according to claim 7, characterized in that, Both sides of the bottom of the connecting seat (20) are provided with threaded grooves (21), and the threaded grooves (21) are connected to bolts (22) that penetrate to the outside of the support seat (4).

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