Mixer for oil refining hydrogenation device

Abstract

The utility model discloses a mixer for an oil refining hydrogenation device, which belongs to the technical field of oil refining mixing equipment and comprises a mixing tank for oil refining hydrogenation, a fixed bearing is embedded and fixedly connected in the top surface of the mixing tank, and an inner ring of the fixed bearing is in interference fit with a fixed plate. A rotating plate with a square cross section is slidably connected to the top face of the fixing plate in an embedded mode, a plurality of stirring plates used for stirring hydrogen and crude oil are welded to the side face of the rotating plate, the top face of the rotating plate is connected with an output shaft of a stirring motor through a coupler, and the fixing end of the stirring motor is detachably connected with a mounting plate through a bolt. The bottom surface of the mounting plate is in rotating friction contact with the rotating plate, the moving ends of the electric telescopic rods are welded at the two ends of the bottom of the mounting plate, and the fixed ends of the two electric telescopic rods are mounted on the top surface of the mixing tank, so that the stirring and mixing range of crude oil and hydrogen is increased, and the stirring and mixing efficiency of the mixer on the crude oil and hydrogen is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil refining mixing equipment, in particular to a mixer used in an oil refining hydrogenation device. Background Art

[0002] Hydrorefining, also known as hydroprocessing, is one of the most important refining methods for petroleum products. It involves removing harmful impurities such as sulfur, oxygen, and nitrogen from oil products by converting them into corresponding hydrogen sulfide, water, and ammonia under hydrogen pressure and in the presence of a catalyst. It also hydrogenates olefins and diolefins, and partially saturates aromatics, to improve oil quality. Hydrogen and crude oil are stirred in a mixer. However, existing mixers are difficult to control the stirring position, reducing the mixing efficiency of hydrogen and crude oil.

[0003] In the related art, a search revealed a scheme for a mixer for an oil refining hydrogenation unit (Announcement No. CN221619172U), which includes a mixing barrel and a feed pipe and a discharge pipe connected to the surface of the mixing barrel. After long-term use, the staff can remove the right cover plate and move the left cover plate within a certain range to prepare for subsequent disassembly of the guide pipe body and the stirring mechanism. During this process, the connection between the hydrogenation pipe body and the external hydrogenation equipment does not need to be disconnected to reduce the problem of hydrogen leakage. At the same time, it also reduces the safety of the hydrogenation operation. However, the mixer does not consider adjusting the stirring position during use, which reduces the stirring and mixing efficiency of hydrogen and crude oil. Utility Model Content

[0004] The purpose of the utility model is to provide a mixer for an oil refining hydrogenation device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixer for an oil refining and hydrogenation device, comprising a mixing tank for oil refining and hydrogenation, a fixed bearing embedded in the top surface of the mixing tank and fixedly connected, the inner ring of the fixed bearing is interference-fitted with a fixed plate, a rotating plate with a square cross-section embedded in the top surface of the fixed plate and slidably connected, a plurality of stirring plates for stirring hydrogen and crude oil are welded on the side of the rotating plate, the top surface of the rotating plate is connected to the output shaft of the stirring motor through a coupling, the fixed end of the stirring motor is detachably connected to the mounting plate by bolts, the bottom surface of the mounting plate is in rotational friction contact with the rotating plate, the movable ends of the electric telescopic rods are welded at both ends of the bottom of the mounting plate, the fixed ends of the two electric telescopic rods are mounted on the top surface of the mixing tank, and the top surface and side surface of the mixing tank are respectively mounted with a feed port and a discharge port.

[0006] Preferably, four equidistantly arranged support rods are welded to the bottom surface of the mixing tank, and a sealed bearing is embedded and fixedly connected to the bottom wall of the mixing tank.

[0007] Preferably, the inner ring of the sealed bearing is interference-fitted with an internal hollow connecting rod, and the top surface of the connecting rod is flush with the inner bottom wall of the mixing tank.

[0008] Preferably, the top surface of the connecting rod is connected to an internal hollow connecting plate, and the bottom surface of the connecting rod is embedded with a fixed limit bearing.

[0009] Preferably, the inner ring of the limit bearing is interference-fitted with a conduit, and a plurality of nozzles for spraying hydrogen are installed on the top surface of the connecting plate.

[0010] Preferably, a scraper plate 1 is welded to the end face of the connecting plate, and a scraper plate 2 is welded to the side face of the scraper plate 1.

[0011] Preferably, a square through groove is provided on the top surface of the scraper plate 2, and the inner wall of the through groove of the scraper plate 2 is slidably connected to the rotating plate.

[0012] Preferably, the inner top wall, inner bottom wall and inner side wall of the mixing tank are in sliding friction contact with the scraper 2, the connecting plate and the scraper 1 respectively.

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

[0014] The mixer for an oil refining and hydrogenation device facilitates the introduction of crude oil into a mixing tank through a provided feed port. A provided stirring motor provides power so that the output shaft of the stirring motor drives the rotating plate to rotate during rotation, thereby causing the plurality of stirring plates to rotate with the rotating plate as the axis, thereby achieving stirring and mixing of the crude oil and hydrogen in the mixing tank. Simultaneously, two provided electric telescopic rods provide power so that the movable ends of the electric telescopic rods move, and the longitudinal positions of the plurality of stirring plates are adjusted during transmission, thereby increasing the stirring and mixing range of the crude oil and hydrogen and improving the stirring and mixing efficiency of the crude oil and hydrogen. A fixed bearing fixes the rotational position of the fixed plate, and simultaneously, when the rotating plate drives the fixed plate to rotate, the rotating plate and the fixed plate move relative to each other longitudinally. The provided fixed plate provides a shielding effect to prevent leakage.

[0015] The mixer for an oil refining hydrogenation device has a conduit connected to an input device such as an external pump body, hydrogen is introduced into the conduit, and then the hydrogen flows into the inner cavity of a connecting rod. Through the connection between the connecting rod and a connecting plate, the hydrogen flows into the inner cavity of the connecting plate, and then the hydrogen is sprayed out through a plurality of nozzles. A sealed bearing is provided to fix the rotation position of the connecting rod. The first and second scrapers are provided to provide a connection function, which facilitates the rotation of the connecting plate with the rotating plate as the axis, so as to realize uniform spraying of hydrogen into the mixing tank, thereby improving the uniform mixing of hydrogen and crude oil and the mixing efficiency of crude oil and hydrogen. At the same time, the first and second scrapers and the connecting plate are provided to scrape off crude oil adhering to the inner wall of the mixing tank during rotation, so as to facilitate full contact between the crude oil and hydrogen and improve the stirring and mixing efficiency of the crude oil and hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the partial structure of the mixing tank of the present utility model;

[0019] Figure 3 For the utility model Figure 2 A magnified view of the structure at center A;

[0020] Figure 4 It is a structural schematic diagram of the connecting rod and connecting plate of the utility model.

[0021] Description of reference numerals:

[0022] In the figure: 1. Mixing tank; 2. Fixed bearing; 3. Fixed plate; 4. Rotating plate; 5. Stirring plate; 6. Stirring motor; 7. Mounting plate; 8. Electric telescopic rod; 9. Feed inlet; 10. Discharge outlet; 11. Sealed bearing; 12. Connecting rod; 13. Conduit; 14. Connecting plate; 15. Nozzle; 16. Scraper 1; 17. Scraper 2; 18. Limit bearing; 19. Support rod. DETAILED DESCRIPTION

[0023] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0024] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0025] The connection method can be bonding, welding, bolt connection, etc., which shall be based on actual needs.

[0026] In order to solve the problem that the mixing position of the mixer used in the refinery hydrogenation unit is difficult to adjust during use, which reduces the mixing efficiency of hydrogen and crude oil, please refer to Figures 1 to 4The structure of the device body is a mixing tank 1 for oil refining and hydrogenation. The top and side surfaces of the mixing tank 1 are respectively provided with a feed port 9 and a discharge port 10, which are convenient for introducing crude oil into the mixing tank 1 through the feed port 9 and discharging the crude oil mixed with hydrogen through the discharge port 10. At the same time, the feed port 9 and the discharge port 10 are both provided with electromagnetic ball valves, which control the opening and closing of the feed port 9 and the discharge port 10. A fixed bearing 2 is embedded in and fixedly connected to the top surface of the mixing tank 1. The inner ring of the fixed bearing 2 is interference fit with a fixed plate 3. The fixed bearing 2 is provided to fix the rotation position of the fixed plate 3, and at the same time realize the relative rotation of the fixed plate 3 and the mixing tank 1.

[0027] A rotating plate 4 with a square cross-section is embedded in the top surface of the fixed plate 3 and is slidably connected thereto. A square through-groove is provided on the top surface of the fixed plate 3. The inner wall of the square through-groove of the fixed plate 3 is slidably connected to the rotating plate 4. The fixed plate 3 is provided to provide a shielding effect to prevent the material inside the mixing tank 1 from seeping when the rotating plate 4 rotates and moves, and at the same time facilitates the movement of the rotating plate 4 along the through-groove of the fixed plate 3. Several stirring plates 5 for stirring hydrogen and crude oil are welded on the side of the rotating plate 4. By rotating the several stirring plates 5 with the rotating plate 4 as the axis, the crude oil and hydrogen inside the mixing tank 1 are stirred and mixed, thereby improving the stirring and mixing efficiency of the crude oil and hydrogen. The top surface of the rotating plate 4 is connected to the output shaft of the stirring motor 6 through a coupling, and the fixed end of the stirring motor 6 is detachably connected to the mounting plate 7 by bolts.

[0028] The provided mounting plate 7 provides support and fixation for the stirring motor 6. The bottom surface of the mounting plate 7 is in rotational frictional contact with the rotating plate 4. At the same time, the output shaft of the stirring motor 6 vertically penetrates the mounting plate 7. The movable ends of the electric telescopic rods 8 are welded to both ends of the bottom of the mounting plate 7. The fixed ends of the two electric telescopic rods 8 are installed on the top surface of the mixing tank 1. The fixed ends of the two electric telescopic rods 8 are detachably connected to the top surface of the mixing tank 1 by bolts. The power is provided by the two provided electric telescopic rods 8. The longitudinal position of the several stirring plates 5 is conveniently adjusted during the transmission process, thereby increasing the stirring and mixing range of the crude oil and hydrogen inside the mixing tank 1 by the several stirring plates 5, and improving the stirring and mixing efficiency of the crude oil and hydrogen.

[0029] Four equidistantly arranged support rods 19 are welded to the bottom of the mixing tank 1. The support rods 19 provide support for the mixing tank 1. A sealed bearing 11 is embedded and fixedly connected to the inner bottom wall of the mixing tank 1. The inner ring of the sealed bearing 11 is interference fit with the internal hollow connecting rod 12. The provided sealed bearing 11 fixes the rotation position of the connecting rod 12. At the same time, the sealed bearing 11 provides a sealing effect to prevent leakage of the mixer. The top surface of the connecting rod 12 is flush with the inner bottom wall of the mixing tank 1. The top surface of the connecting rod 12 is connected to the internal hollow connecting plate 14, so that the bottom surface of the connecting plate 14 is in contact with the inner bottom wall of the mixing tank 1.

[0030] During the rotation of the connecting rod 12, the connecting plate 14 is driven to rotate, thereby realizing that the connecting plate 14 provides a scraping effect on the crude oil adhering to the inner bottom wall of the mixing tank 1. A limit bearing 18 is embedded in the bottom surface of the connecting rod 12 and fixedly connected. The inner ring of the limit bearing 18 is interference-fitted with the conduit 13. The provided limit bearing 18 realizes the relative rotation of the conduit 13 and the connecting rod 12. At the same time, the top surface of the conduit 13 extends into the connecting rod 12, and the conduit 13 is connected to the connecting rod 12. Hydrogen is introduced into the conduit 13 through an input device such as an external pump body, so that the hydrogen flows into the inner cavity of the connecting rod 12, and then the hydrogen is introduced into the inner cavity of the connecting plate 14. A plurality of nozzles 15 for spraying hydrogen are installed on the top surface of the connecting plate 14, so that hydrogen is sprayed out through the plurality of nozzles 15. A scraper 16 is welded on the end face of the connecting plate 14, and a scraper 2 17 is welded on the side of the scraper 16.

[0031] A square through groove is provided on the top surface of scraper 2 17, and the inner wall of the through groove of scraper 2 17 is slidingly connected to the rotating plate 4, and a connection function is provided by the provided scraper 16 and scraper 2 17. During the transmission process, the connecting plate 14 located on the inner bottom wall of the mixing tank 1 rotates with the rotating plate 4 as the axis, so that the hydrogen is evenly distributed inside the mixing tank 1. At the same time, the density of hydrogen is lower than that of crude oil. Under the action of buoyancy, the hydrogen is mixed with the crude oil from bottom to top, further improving the stirring and mixing efficiency of the crude oil and hydrogen. The inner top wall, inner bottom wall and inner side wall of the mixing tank 1 are in sliding and frictional contact with scraper 2 17, connecting plate 14 and scraper 1 16 respectively, and the provided connecting plate 14, scraper 1 16 and scraper 2 17 respectively provide a scraping effect on the crude oil adhering to the inner bottom wall, inner side wall and inner top wall of the mixing tank 1.

[0032] The stirring motor 6 and the electric telescopic rod 8 are both existing technologies. Their working principles, sizes and models are irrelevant to the functions of this application, so they are not described in detail. The control method of the present invention is controlled by a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention no longer explains the control method and circuit connection in detail.

[0033] How it works

[0034] When using the mixer for an oil refining hydrogenation device, a user introduces crude oil into a mixing tank 1 through a feed port 9, and uses an external pump or other input device to introduce hydrogen into a conduit 13. The hydrogen is then sprayed out through a plurality of nozzles 15 under the effect of the connection between the connecting rod 12 and the connecting plate 14, thereby mixing the hydrogen with the crude oil. At the same time, a stirring motor 6 is started, and the rotation of the output shaft of the stirring motor 6 drives the rotating plate 4 to rotate, thereby mixing the crude oil with the hydrogen during the rotation of the plurality of stirring plates 5. The two electric telescopic rods 8 are started, and the moving ends of the electric telescopic rods 8 drive the mounting plate 7 to move longitudinally during the movement, and the stirring positions of the plurality of stirring plates 5 are adjusted during the transmission process.

[0035] During the rotation of the rotating plate 4, the scraper 2 17 is driven to rotate. Under the connection action of the scraper 1 16, the connecting plate 14 rotates with the rotating plate 4 as the axis, so that the hydrogen is evenly distributed inside the mixing tank 1. At the same time, the connecting plate 14, the scraper 1 16 and the scraper 2 17 respectively scrape off the crude oil adhering to the bottom wall, the inner side wall and the inner top wall of the mixing tank 1.

[0036] It should be noted that, in this article, relational terms such as one and two are only used 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 "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0037] 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 mixer for an oil refining hydrogenation unit, comprising a mixing tank (1) for oil refining hydrogenation, characterized in that: A fixed bearing (2) is embedded and fixedly connected to the top surface of the mixing tank (1); the inner ring of the fixed bearing (2) is interference-fitted with a fixed plate (3); a rotating plate (4) with a square cross-section is embedded and slidably connected to the top surface of the fixed plate (3); and a plurality of stirring plates (5) for stirring hydrogen and crude oil are welded to the side of the rotating plate (4); The top surface of the rotating plate (4) is connected to the output shaft of the stirring motor (6) through a coupling, and the fixed end of the stirring motor (6) is detachably connected to the mounting plate (7) through bolts. The bottom surface of the mounting plate (7) is in rotational friction contact with the rotating plate (4), and the movable ends of the electric telescopic rods (8) are welded to both ends of the bottom of the mounting plate (7). The fixed ends of the two electric telescopic rods (8) are installed on the top surface of the mixing tank (1), and the top surface and side surface of the mixing tank (1) are respectively installed with a feed port (9) and a discharge port (10).

2. The mixer for an oil refining hydrogenation unit according to claim 1, wherein: Four equidistantly arranged support rods (19) are welded to the bottom surface of the mixing tank (1), and a sealed bearing (11) is embedded and fixedly connected to the inner bottom wall of the mixing tank (1).

3. A mixer for an oil refining hydrogenation unit according to claim 2, characterized in that: The inner ring of the sealed bearing (11) is interference-fitted with an internal hollow connecting rod (12), and the top surface of the connecting rod (12) is flush with the inner bottom wall of the mixing tank (1).

4. A mixer for an oil refining hydrogenation unit according to claim 3, characterized in that: The top surface of the connecting rod (12) is connected to an internal hollow connecting plate (14), and the bottom surface of the connecting rod (12) is embedded with a fixedly connected limited bearing (18).

5. A mixer for an oil refining hydrogenation unit according to claim 4, characterized in that: The inner ring of the limit bearing (18) is interference-fitted with a conduit (13), and a plurality of nozzles (15) for spraying hydrogen are mounted on the top surface of the connecting plate (14).

6. The mixer for an oil refining hydrogenation unit according to claim 5, characterized in that: The end surface of the connecting plate (14) is welded with a scraper plate 1 (16), and the side surface of the scraper plate 1 (16) is welded with a scraper plate 2 (17).

7. A mixer for an oil refining hydrogenation unit according to claim 6, characterized in that: A square through groove is provided on the top surface of the scraper plate 2 (17), and the inner wall of the through groove of the scraper plate 2 (17) is slidably connected to the rotating plate (4).

8. The mixer for an oil refining hydrogenation unit according to claim 7, characterized in that: The inner top wall, inner bottom wall and inner side wall of the mixing tank (1) are in sliding friction contact with the second scraper (17), the connecting plate (14) and the first scraper (16) respectively.

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