A water injection device for light and medium component hydrocracking device

Abstract

The utility model belongs to the field of chemical technology, especially relate to a water injection device of light and medium component hydrocracking device. The communication subassembly is used for communicating the fractionating tower. The water injection subassembly includes the purification mechanism and the water injection jar, and the purification mechanism sets up on the water injection jar, and the purification mechanism is used for communicating with the communication subassembly. The purification mechanism includes the purification cylinder, drive structure and activated carbon structure. The installation mouth is set up in the front side of purification cylinder, and the water inlet hole that communicates with the communication subassembly is set up in the back side of purification cylinder, and the lower end of purification cylinder is connected with the upper end of water injection jar and communicates. Drive structure sets up on the purification cylinder. The activated carbon structure is provided with two, and one activated carbon structure is located below the water inlet hole, and the other activated carbon structure corresponds the installation mouth. Through setting up the communication subassembly and the water injection subassembly, can take acidic water as light and medium component hydrocracking device water injection, namely, reduces the energy consumption needed for acidic water stripping, and can reduce the oxygen removal water usage, is favorable for reducing the use cost.

Description

Technical Field

[0001] This utility model belongs to the field of chemical technology, and specifically relates to a water injection device for a light and medium component hydrocracking unit. Background Technology

[0002] In the light and medium component hydrocracking unit, elements such as nitrogen, chlorine, and sulfur in the feedstock oil combine with hydrogen during the hydrocracking reaction to form crystallizable salts such as ammonium chloride and ammonium hydrosulfide. These ammonium salts are prone to crystallization in low-temperature regions (such as high-pressure air coolers and heat exchangers), leading to pipeline blockage and increased system pressure drop. By injecting water to dilute the concentration of ammonium salts, the risk of crystallization is reduced, and existing crystals are dissolved. To avoid equipment blockage and corrosion, water is injected into the light and medium component hydrocracking unit before the hot high-separation gas air cooler and the hot low-separation gas air cooler to wash away the ammonium salts. The water source is deoxygenated water.

[0003] However, the existing water injection source is deoxygenated water, which is costly. Therefore, it is necessary to design a water injection device for a light and medium component hydrocracking unit to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a water injection device for a light and medium component hydrocracking unit, thereby resolving the issues raised in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water injection device for a light and medium component hydrocracking unit, applied to the light and medium component hydrocracking unit, the water injection device for the light and medium component hydrocracking unit comprising:

[0006] A connecting component for connecting a fractionating column;

[0007] The water injection assembly includes a purification mechanism and a water injection tank. The purification mechanism is disposed on the water injection tank and is used to communicate with the communication assembly.

[0008] The purification mechanism includes:

[0009] A purification cylinder has an installation port on its front side and a water inlet on its rear side. The lower end of the purification cylinder is connected to and communicates with the upper end of the water injection tank.

[0010] A drive structure is disposed on the purification cylinder;

[0011] The activated carbon structure has two parts. One activated carbon structure is located below the water inlet, and the other activated carbon structure corresponds to the mounting port. Both activated carbon structures are assembled and connected to the driving structure, which is used to drive the two activated carbon structures to exchange positions inside the purification cylinder.

[0012] Furthermore, the driving structure includes:

[0013] A purification cover, which is connected to the upper end of the purification cylinder;

[0014] An electric motor, which is connected to the inner wall of the purification cover;

[0015] A baffle is disposed inside the purification cylinder, and two activated carbon structures are detachably connected to the front and rear sides of the baffle, respectively.

[0016] Furthermore, the baffle is provided with mounting holes, the activated carbon structure is configured as a semi-cylindrical structure, and a snap-fit ​​block is provided on the plane of the activated carbon structure, the snap-fit ​​block being used to be inserted into the mounting holes.

[0017] Furthermore, the purification mechanism also includes:

[0018] The filter plate has an installation groove on the purification cylinder, which is located below the activated carbon structure, and the filter plate is inserted into the installation groove.

[0019] Furthermore, the mounting groove has openings on both the front and rear sides, and both the left and right sides of the mounting groove are set as planes.

[0020] Furthermore, a limiting block is provided on the front side of the filter plate, and a limiting groove is provided on the rear side of the filter plate, wherein the limiting block of one filter plate is used to insert into the limiting groove of another filter plate.

[0021] The technical effects and advantages of this utility model are as follows:

[0022] 1. By setting up connecting components and water injection components, acidic water can be used as water injection for the light and medium component hydrocracking unit, which reduces the energy consumption required for acidic water stripping and the amount of deoxygenated water used, thus helping to reduce operating costs.

[0023] 2. When the activated carbon structure is saturated, the driving structure drives the two activated carbon structures to exchange positions, moving another spare activated carbon structure below the water inlet and placing the saturated activated carbon structure at the installation port, thus continuously adsorbing hydrogen sulfide from acidic water.

[0024] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the water injection device of the light and medium component hydrocracking unit according to an embodiment of the present invention is shown;

[0027] Figure 2 A schematic diagram of the water injection assembly according to an embodiment of the present invention is shown;

[0028] Figure 3 A schematic diagram of the purification mechanism according to an embodiment of the present invention is shown;

[0029] Figure 4 A partial structural schematic diagram of the purification mechanism according to an embodiment of the present invention is shown;

[0030] Figure 5 A schematic diagram of the drive structure according to an embodiment of the present invention is shown;

[0031] Figure 6 A partial structural schematic diagram of the driving structure according to an embodiment of the present invention is shown;

[0032] Figure 7 A schematic diagram of the activated carbon structure according to an embodiment of the present invention is shown;

[0033] Figure 8 A schematic diagram of the structure of the filter plate according to an embodiment of the present invention is shown.

[0034] Reference numerals in the attached drawings: 1. Connecting component; 2. Water injection component; 3. Purification mechanism; 4. Water injection tank; 5. Purification cylinder; 6. Drive structure; 7. Activated carbon structure; 8. Mounting port; 9. Water inlet hole; 10. Purification cover; 11. Motor; 12. Baffle; 13. Mounting hole; 14. Snap-fit ​​block; 15. Filter plate; 16. Mounting groove; 17. Limiting block; 18. Limiting groove. Detailed Implementation

[0035] 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 protection scope of this utility model.

[0036] like Figures 1 to 5 as well as Figure 7 As shown in the figure, a water injection device for a light and medium component hydrocracking unit according to an embodiment of the present invention is applied to the light and medium component hydrocracking unit. The water injection device for the light and medium component hydrocracking unit includes a connecting component 1 and a water injection component 2. The connecting component 1 is used to connect to the fractionation tower. The water injection component 2 includes a purification mechanism 3 and a water injection tank 4. The purification mechanism 3 is disposed on the water injection tank 4 and is used to communicate with the connecting component 1. The purification mechanism 3 includes a purification cylinder 5, a driving structure 6, and an activated carbon structure 7. The front side of the purification cylinder 5 has an installation port 8, and the rear side of the purification cylinder 5 has a water inlet hole 9 that communicates with the connecting component 1. The lower end of the purification cylinder 5 is connected to and communicates with the upper end of the water injection tank 4. The driving structure 6 is disposed on the purification cylinder 5. Two activated carbon structures 7 are provided. One activated carbon structure 7 is located below the water inlet 9, and the other activated carbon structure 7 corresponds to the mounting port 8. Both activated carbon structures 7 are assembled and connected to the driving structure 6. The driving structure 6 is used to drive the two activated carbon structures 7 to exchange positions in the purification cylinder 5.

[0037] Specifically, acidic water typically contains gases such as hydrogen sulfide. All of this water is discharged into water injection tank 4. Leakage in water injection tank 4 can easily harm human health and pollute the environment. The fractionation tower is connected to the water inlet 9 via connecting component 1, allowing the acidic water to be discharged into the purification cylinder 5. After passing through the activated carbon structure 7, the acidic water can utilize the activated carbon structure 7 to adsorb gases such as hydrogen sulfide. The purified acidic water then enters the water injection tank 4 through the lower end of the purification cylinder 5, and is connected to the light and medium component hydrocracking unit via water injection tank 4. The purified acidic water is then discharged into the hot high-splitter air cooler and hot low-splitter air cooler of the light and medium component hydrocracking unit to wash ammonium salts. Therefore, by setting up connecting component 1 and water injection component 2, acidic water can be used as water injection for the light and medium component hydrocracking unit, reducing the energy consumption required for acidic water stripping and the amount of deoxygenated water used, thus reducing costs.

[0038] Secondly, when the activated carbon structure 7 is saturated, the driving structure 6 drives the two activated carbon structures 7 to exchange positions, and another spare activated carbon structure 7 is moved below the water inlet hole 9. The saturated activated carbon structure 7 is then placed at the installation port 8, which can continuously adsorb hydrogen sulfide from acidic water.

[0039] Secondly, it facilitates the removal of the saturated activated carbon structure 7 from the installation port 8 and the installation of a new activated carbon structure 7 as a spare activated carbon structure 7.

[0040] In this embodiment, the activated carbon structure 7 can be configured to include a frame structure made of plastic and activated carbon placed within the frame structure. Secondly, the connecting component 1 includes a pipe and a valve installed on the pipe, with the two ends of the pipe connected to the distillation tower and the water inlet 9, respectively.

[0041] To ensure the effectiveness of the drive structure 6, such as... Figure 5 and Figure 6 As shown, optionally, the drive structure 6 includes a purification cover 10, a motor 11, and a baffle 12. The purification cover 10 is connected to the upper end of the purification cylinder 5. The motor 11 is connected to the purification cover 10. The baffle 12 is disposed inside the purification cylinder 5, and the two activated carbon structures 7 are detachably connected to the front and rear sides of the baffle 12, respectively.

[0042] Specifically, when the activated carbon structure 7 located below the water inlet hole 9 is saturated, the motor 11 drives the baffle 12 to rotate, thereby rotating the saturated activated carbon structure 7 and the spare activated carbon structure 7. This causes the saturated activated carbon structure 7 to rotate to the corresponding installation port 8 for easy removal, and the spare activated carbon structure 7 to rotate to the area below the water inlet hole 9, so as to continuously absorb gases such as hydrogen sulfide, thereby ensuring the effectiveness of the drive structure 6.

[0043] In this embodiment, the purification cover 10 can be welded or bolted to the upper end of the purification cylinder 5. The motor 11 can be welded or bolted to the purification cover 10. Preferably, the motor 11 is located on the outside of the purification cover 10.

[0044] To facilitate the replacement of activated carbon structure 7. For example... Figure 6 and Figure 7 As shown, optionally, the baffle 12 is provided with a mounting hole 13, the activated carbon structure 7 is configured as a semi-cylindrical structure, and a snap-fit ​​block 14 is provided on the plane of the activated carbon structure 7, the snap-fit ​​block 14 being used to be inserted into the mounting hole 13.

[0045] Specifically, the activated carbon structure 7 is configured as a semi-cylindrical structure and installed on the baffle 12, meaning the arc-shaped sidewall of the activated carbon structure 7 fits against the inner sidewall of the purification cylinder 5. This ensures that acidic water passes through the activated carbon structure 7 before entering the water injection tank 4. Secondly, by opening mounting holes 13 on the baffle 12 and setting snap-fit ​​blocks 14 on the plane of the activated carbon structure 7, the snap-fit ​​blocks 14 are inserted into the mounting holes 13 to assemble the activated carbon structure 7. The friction between the snap-fit ​​blocks 14 and the inner wall of the mounting holes 13 limits the position of the activated carbon structure 7, thus facilitating its installation and disassembly and enabling quick replacement.

[0046] To prevent activated carbon from falling off and causing blockages. For example... Figure 3 , Figure 4 as well as Figure 8 As shown, optionally, the purification mechanism 3 further includes a filter plate 15, and the purification cylinder 5 is provided with an installation groove 16. The installation groove 16 is located below the activated carbon structure 7, and the filter plate 15 is used to be inserted into the installation groove 16.

[0047] Specifically, if the activated carbon structure 7 is damaged, the fallen activated carbon may block the connection between the purification cylinder 5 and the water injection tank 4, affecting the discharge of acidic water into the water injection tank 4. By installing a filter plate 15 below the activated carbon structure 7, the activated carbon can be blocked, allowing the acidic water to pass through.

[0048] Secondly, by setting the mounting slot 16 and inserting the filter plate 15 into the mounting slot 16, it is easy to install and remove the filter plate 15.

[0049] In this embodiment, the filter plate 15 has multiple mesh holes, the diameter of which is smaller than the diameter of the activated carbon particles.

[0050] To ensure that the filter plate 15 is displaced relative to the purification cylinder 5, the mounting groove 16 is optionally open on both the front and rear sides, and both the left and right sides of the mounting groove 16 are made into planes, as are the left and right sides of the filter plate 15.

[0051] Specifically, by opening the front and rear sides of the mounting groove 16, the filter plate 15 can be pulled out from the front side of the mounting groove 16, and the spare filter plate 15 can be inserted from the rear side of the mounting groove 16, which can continuously block the falling activated carbon.

[0052] Secondly, since both the left and right sides of the mounting groove 16 and the filter plate 15 are set as flat surfaces, when the filter plate 15 is inserted into the mounting groove 16, the left and right flat surfaces of the filter plate 15 fit into the left and right flat surfaces of the mounting groove 16, which helps to limit the position of the filter plate 15 and prevent the filter plate 15 from rotating relative to the purification cylinder 5 and causing displacement.

[0053] To facilitate the replacement of filter plate 15. For example... Figure 8 As shown, optionally, a limiting block 17 is provided on the front side of the filter plate 15, and a limiting groove 18 is provided on the rear side of the filter plate 15. The limiting block 17 of one filter plate 15 is used to be inserted into the limiting groove 18 of another filter plate 15.

[0054] Specifically, when inserting the spare filter plate 15 into the mounting slot 16, the spare filter plate 15 is placed behind the original filter plate 15, and the limiting block 17 of the spare filter plate 15 is inserted into the limiting groove 18 of the original filter plate 15. This allows the original filter plate 15 to be pushed out of the front of the mounting slot 16 during the insertion process, simplifying the filter plate 15 replacement process compared to simultaneously inserting the spare filter plate 15 and pulling it out of the mounting slot 16.

[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water injection device for a light and medium component hydrocracking unit, applied to a light and medium component hydrocracking unit, characterized in that, include: A connecting component (1) is used to connect a fractionation tower; Water injection assembly (2), the water injection assembly (2) includes a purification mechanism (3) and a water injection tank (4), the purification mechanism (3) is disposed on the water injection tank (4), the purification mechanism (3) is used to communicate with the communication assembly (1); The purification mechanism (3) includes: Purification cylinder (5), with an installation port (8) on the front side and a water inlet hole (9) on the rear side, the lower end of the purification cylinder (5) is connected to and communicates with the upper end of the water injection tank (4); A drive structure (6) is disposed on the purification cylinder (5); Activated carbon structure (7), two activated carbon structures (7) are provided, one activated carbon structure (7) is located below the water inlet (9), and the other activated carbon structure (7) corresponds to the mounting port (8). Both activated carbon structures (7) are assembled and connected to the driving structure (6). The driving structure (6) is used to drive the two activated carbon structures (7) to exchange positions in the purification cylinder (5).

2. The water injection device of the light and medium component hydrocracking unit according to claim 1, characterized in that, The driving structure (6) includes: Purification cover (10), the purification cover (10) is connected to the upper end of the purification cylinder (5); Motor (11), the motor (11) is connected to the inner wall of the purification cover (10); A baffle (12) is disposed inside the purification cylinder (5), and two activated carbon structures (7) are detachably connected to the front and rear sides of the baffle (12) respectively.

3. The water injection device of the light and medium component hydrocracking unit according to claim 2, characterized in that, The baffle (12) has an installation hole (13), the activated carbon structure (7) is set as a semi-cylindrical structure, and a snap-fit ​​block (14) is provided on the plane of the activated carbon structure (7), the snap-fit ​​block (14) is used to be inserted into the installation hole (13).

4. The water injection device of the light and medium component hydrocracking unit according to claim 3, characterized in that, The purification mechanism (3) also includes: The filter plate (15) has an installation groove (16) on the purification cylinder (5). The installation groove (16) is located below the activated carbon structure (7). The filter plate (15) is used to be inserted into the installation groove (16).

5. The water injection device for the light and medium component hydrocracking unit according to claim 4, characterized in that, The mounting groove (16) has openings on both the front and rear sides, and both the left and right sides of the mounting groove (16) are set as planes.

6. The water injection device for the light and medium component hydrocracking unit according to claim 5, characterized in that, A limiting block (17) is provided on the front side of the filter plate (15), and a limiting groove (18) is provided on the rear side of the filter plate (15). The limiting block (17) of one filter plate (15) is used to be inserted into the limiting groove (18) of another filter plate (15).

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