Hydrogenation reactor with replaceable catalyst

Abstract

The utility model provides a hydrogenation reactor capable of replacing a catalyst, which relates to the technical field of chemical engineering and comprises a reactor component, a cavity for reaction of raw materials is formed in the reactor component, one side of the reactor component is opened to form a slot, the slot is communicated with the cavity, a slidable filler part is mounted in the slot, and the filler part is communicated with the reactor component. The top of the filler part is opened to form a placing cavity for placing a catalyst, the placing cavity is moved to the outside or the inside of the cavity through sliding of the filler part, and a side plate is arranged on one side of the reactor component. Compared with the prior art, when the device is in use, through the arrangement of the slot and the filler piece, when a worker needs to replace a catalyst, the worker only needs to pull the filler piece to drive the catalyst to move to the outside of the reactor component, and the worker does not need to disassemble the whole device when replacing the catalyst, so that the difficulty of replacing the catalyst by the device is reduced; and the catalyst replacement efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to a hydrogenation reactor with replaceable catalyst. Background Art

[0002] Hydrogenation reactors are essential key equipment in the oil refining, coal chemical and organic chemical industries. They are mainly used to convert the heavy part of crude oil into light oil by hydrogenation, while removing impurities such as oxygen, sulfur and nitrogen to improve the quality of oil products. However, during the hydrogenation reaction, the catalyst will gradually become inactivated due to coking, poisoning and other reasons, and needs to be replaced regularly to ensure the reaction efficiency. When replacing the catalyst, traditional hydrogenation reactors usually require complex operations such as shutdown, emptying and disassembly of the reactor shell, which is not only time-consuming and labor-intensive, but also prone to catalyst waste and environmental pollution.

[0003] For example, in the Chinese patent with the announcement number "CN 221310591 U", a hydrogenation reactor with replaceable catalyst is disclosed, including: a fixed shell; a support shell, which is arranged outside the fixed shell and used to seal the fixed shell, and a discharge pipe is arranged outside the fixed shell; a reaction assembly, which is arranged inside the support shell and used to react the liquid, and the reaction assembly includes a plurality of fixed rings, each of which is provided with a filter plate inside, each of which is provided with a cavity inside, and each of which is provided with a plurality of grooves outside the fixed ring; a stopper, which is arranged inside the support shell and used to provide support for the reaction assembly. A feed pipe is arranged outside the fixed shell, and a liquid distribution plate for distributing the liquid is also arranged inside the fixed shell, and a dispersion member for guiding the liquid and a support member for adjusting the liquid flow are respectively arranged inside the feed pipe. A plurality of downcomers are arranged outside the liquid distribution plate, and a cap is arranged outside the downcomer. The stopper includes a connecting ring, and a plurality of fixing rods are arranged outside the connecting ring, and an external thread is arranged outside the fixing rod, and a nut is arranged outside the fixing rod. The groove corresponds to the fixing rod. Although the device can replace the catalyst, the device needs to be completely disassembled before replacing the catalyst. Therefore, the catalyst replacement is difficult and the catalyst replacement efficiency is low. Utility Model Content

[0004] In order to solve the above deficiencies in the prior art, the utility model proposes a hydrogenation reactor with replaceable catalyst.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A hydrogenation reactor with replaceable catalyst comprises a reactor component, wherein a cavity for raw material reaction is formed inside the reactor component, and one side of the reactor component is opened to form a slot, the slot is communicated with the cavity, and a slidable filling piece is installed inside the slot, the top of the filling piece is opened to form a placement cavity for placing the catalyst, and the placement cavity is moved to the outside or inside of the cavity by sliding the filling piece.

[0007] Preferably, a side plate is provided on one side of the reactor component, a side of the filler member outside the cavity is fixedly connected to a support plate, a side of the side plate away from the support plate is provided with a connecting plate, and a spring is fixedly connected between the side plate and the connecting plate, a side of the connecting plate facing the side plate is fixedly connected to a positioning rod, a free end of the positioning rod moves through the side plate and the support plate, and a socket matching the positioning rod is provided on the support plate.

[0008] Preferably, the reactor component includes a reactor body, the cavity is formed inside the reactor body, a feeding pipe is fixedly connected to the top of the reactor body, and a discharge pipe is fixedly connected to the bottom of the reactor body, two hanging rings are symmetrically fixedly connected to the top of the reactor body, the feeding pipe is located between the two hanging rings, and hanging holes are provided on both hanging rings.

[0009] Preferably, a support frame is arranged below the reactor body, a positioning groove matching the reactor body is opened on the support frame, and a foot for supporting the support frame is fixedly connected to the bottom of the support frame.

[0010] Further preferably, the filling member includes a filling frame, the top of the filling frame is open to form a filling cavity, and the bottom of the filling frame is provided with a plurality of through holes, the through holes are connected to the filling cavity, the support plate is fixedly connected to one side of the filling frame, and a handle is fixedly connected to the outer side of the support plate.

[0011] More preferably, a diffuser is fixedly connected to the interior of the feeding pipe.

[0012] Most preferably, a distributor is installed inside the cavity, and the distributor is below the diffuser. Preferably, a support plate is fixedly connected to the inner wall of the cavity, and the support plate is below the filling frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. When the utility model is in use, through the arrangement of the slots and the stuffing pieces, when personnel need to replace the catalyst, they only need to pull the stuffing piece so that the stuffing piece drives the catalyst to move to the outside of the reactor component. When personnel replace the catalyst, there is no need to disassemble the device as a whole, thereby reducing the difficulty of replacing the catalyst in the device and improving the efficiency of replacing the catalyst in the device.

[0015] 2. When the utility model is in use, through the setting of the positioning rod and the connecting plate, when the filling frame moves to the inside of the cavity, the spring pulls the connecting plate to move, so that the connecting plate drives the positioning rod to move, and then the positioning rod is inserted between the side plate and the support plate, so that the filling frame is more stable when working, thereby improving the stability of the device when working. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 It is one of the three-dimensional diagrams of the utility model;

[0018] Figure 2 This is the second stereogram of the utility model;

[0019] Figure 3 This is the third stereogram of the utility model;

[0020] Figure 4 This is the fourth stereogram of the utility model;

[0021] Figure 5 This is a three-dimensional diagram of the utility model with the packing frame removed;

[0022] Figure 6 It is a three-dimensional diagram of the packing frame of the utility model;

[0023] Figure 7 for Figure 5 A cross-sectional view of

[0024] Figure 8 It is an exploded view of the side panel of the utility model;

[0025] In the figure: 1. Reactor body; 2. Support frame; 3. Bottom foot; 4. Feeding tube; 5. Lifting hole; 6. Lifting ring; 7. Support plate; 8. Handle; 9. Side plate; 10. Connecting plate; 11. Discharge pipe; 12. Positioning rod; 13. Slot; 14. Filling frame; 15. Filling cavity; 16. Through hole; 17. Socket; 18. Distributor; 19. Diffuser; 20. Support plate; 21. Positioning groove; 22. Spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides Figure 1 A hydrogenation reactor with replaceable catalyst is shown, including a reactor component, a cavity for raw material reaction is formed inside the reactor component, and one side of the reactor component is opened to form a slot 13, the slot 13 is connected to the cavity, and a slidable filling piece is installed inside the slot 13, the top of the filling piece is opened to form a placement cavity for placing the catalyst, and the placement cavity is moved to the outside or inside of the cavity by sliding the filling piece.

[0028] Furthermore, the reactor component includes a reactor body 1, a cavity is formed inside the reactor body 1, a feeding pipe 4 is fixedly connected to the top of the reactor body 1, and a discharge pipe 11 is fixedly connected to the bottom of the reactor body 1, two hanging rings 6 are symmetrically fixedly connected to the top of the reactor body 1, the feeding pipe 4 is located between the two hanging rings 6, and the two hanging rings 6 are both provided with hanging holes 5.

[0029] As can be seen from the above, when in use, the reactor body 1 is moved by the lifting equipment through the lifting cable connected to the lifting hole 5 on the lifting ring 6, so that the reactor body 1 is placed at the position where it needs to be used, and hydrogen and raw oil are added to the feeding pipe 4 according to the set hydrogen-oil ratio, and the hydrogen and raw oil are guided to be input into the cavity inside the reactor body 1 through the feeding pipe 4. When the hydrogen and raw oil pass through the packing, the hydrogen and raw oil contact the catalyst on the packing, and the hydrogen and raw oil undergo a hydrogenation reaction. In this process, unsaturated compounds, impurities, etc. in the raw oil are hydrogenated or removed to generate high-purity target products. The cold hydrogen pipe (not shown in the figure) introduces cold hydrogen into the reactor body 1, and is fully mixed with the hot reactants in the cold hydrogen box (not shown in the figure) to absorb the reaction heat and reduce the temperature of the reactants. After multiple stages of catalytic reaction, the generated target products such as finished oil flow out through the discharge pipe 11 at the bottom of the reactor body 1. When the catalyst needs to be replaced, the packing piece is pulled to slide relative to the reactor body 1, and then the packing piece is moved from the slot 13 on one side of the reactor body 1 to the outside of the reactor body 1, so that the catalyst on the packing piece can be replaced, and then the packing piece after the catalyst is replaced is inserted back into the interior of the reactor body 1 through the slot 13, thereby completing the catalyst replacement.

[0030] refer to Figure 1-Figure 4As shown, a support frame 2 is arranged below the reactor body 1 , a positioning groove 21 matching the reactor body 1 is opened on the support frame 2 , and a foot 3 for supporting itself is fixedly connected to the bottom of the support frame 2 .

[0031] Through the above technical solution:

[0032] When in use, before using the reactor body 1, place the support frame 2 at the position where it needs to be used, support the support frame 2 through the base 3, and then place the reactor body 1 on the support frame 2, and support the reactor body 1 through the positioning grooves 21 on the support frame 2, so that the reactor body 1 can work stably.

[0033] Furthermore, a diffuser 19 is fixedly connected to the inside of the feeding pipe 4 .

[0034] Furthermore, a distributor 18 is installed inside the cavity, and the distributor 18 is located below the diffuser 19.

[0035] Based on this, when hydrogen and crude oil are transported to the cavity inside the reactor body 1 through the feeding pipe 4, the hydrogen and crude oil first pass through the diffuser 19, and after being rectified by the upper cone, they are diffused to the entire cross-section of the reactor body 1 after throttling and collision through the two layers of holes of the upper and lower baffles. The distributor 18 evenly distributes the reaction medium on the packing cavity 15 to ensure good contact between the medium and the catalyst.

[0036] In addition, refer to Figure 1-Figure 4 As shown, a side plate 9 is provided on one side of the reactor component, a side of the filler member outside the cavity is fixedly connected to a support plate 7, a side of the side plate 9 away from the support plate 7 is provided with a connecting plate 10, and a spring 22 is fixedly connected between the side plate 9 and the connecting plate 10, a positioning rod 12 is fixedly connected to the side of the connecting plate 10 facing the side plate 9, a free end of the positioning rod 12 moves through the side plate 9 and the support plate 7, and a socket 17 matching the positioning rod 12 is opened on the support plate 7.

[0037] Through the above technical solution:

[0038] When in use, when the filler is moved through the support plate 7 and inserted into the cavity, the side plate 9 is supported by the reactor body 1, and the spring 22 is supported by the side plate 9, so that the spring 22 pulls the connecting plate 10 and the positioning rod 12 to move, so that the positioning rod 12 is inserted into the side plate 9 and the support plate 7 support, thereby making the support plate 7 and the filler more stable after installation.

[0039] Furthermore, the filling member includes a filling frame 14, the top of the filling frame 14 is open to form a filling cavity 15, and the bottom of the filling frame 14 is provided with a plurality of through holes 16, the through holes 16 are connected to the filling cavity 15, the support plate 7 is fixedly connected to one side of the filling frame 14, and the outer side of the support plate 7 is fixedly connected to a handle 8.

[0040] Through the above technical solution:

[0041] During use, when personnel need to replace the packing, they move the support plate 7 through the handle 8, so that the support plate 7 drives the packing frame 14 to move, and the packing is driven by the packing frame 14 to move to the outside of the reactor body 1, and the personnel can replace the packing in the packing cavity 15. After the packing is replaced, the packing frame 14 can be inserted back into the cavity through the slot 13 to complete the packing replacement.

[0042] Furthermore, a support plate 20 is fixedly connected to the inner wall of the cavity, and the support plate 20 is located below the packing frame 14. Based on this, when the personnel insert the packing frame 14 into the cavity inside the reactor body 1, the support plate 20 supports the packing frame 14, making the packing frame 14 more stable during operation.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogenation reactor with replaceable catalyst, characterized in that: The invention comprises a reactor component, wherein a cavity for raw material reaction is formed inside the reactor component, and one side of the reactor component is opened to form a slot (13), wherein the slot (13) is connected to the cavity, and a slidable filling piece is installed inside the slot (13), wherein the top of the filling piece is opened to form a placement cavity for placing the catalyst, and the placement cavity is moved to the outside of the cavity or the inside of the cavity by sliding the filling piece.

2. The hydrogenation reactor with replaceable catalyst according to claim 1, characterized in that: A side plate (9) is provided on one side of the reactor component, a side of the filler member outside the cavity is fixedly connected to a support plate (7), a side of the side plate (9) away from the support plate (7) is provided with a connecting plate (10), and a spring (22) is fixedly connected between the side plate (9) and the connecting plate (10), a side of the connecting plate (10) facing the side plate (9) is fixedly connected to a positioning rod (12), a free end of the positioning rod (12) moves through the side plate (9) and the support plate (7), and a socket (17) matching the positioning rod (12) is provided on the support plate (7).

3. The hydrogenation reactor with replaceable catalyst according to claim 2, characterized in that: The reactor component comprises a reactor body (1), the cavity is formed inside the reactor body (1), a feeding pipe (4) is fixedly connected to the top of the reactor body (1), and a discharge pipe (11) is fixedly connected to the bottom of the reactor body (1), two hanging rings (6) are symmetrically fixedly connected to the top of the reactor body (1), the feeding pipe (4) is located between the two hanging rings (6), and hanging holes (5) are provided on the two hanging rings (6).

4. The hydrogenation reactor with replaceable catalyst according to claim 3, characterized in that: A support frame (2) is arranged below the reactor body (1), a positioning groove (21) matching the reactor body (1) is provided on the support frame (2), and a foot (3) for supporting the support frame (2) is fixedly connected to the bottom of the support frame (2).

5. The hydrogenation reactor with replaceable catalyst according to claim 3, characterized in that: The packing member comprises a packing frame (14), the top of the packing frame (14) is open to form a packing cavity (15), and the bottom of the packing frame (14) is provided with a plurality of through holes (16), the through holes (16) are connected to the packing cavity (15), the support plate (7) is fixedly connected to one side of the packing frame (14), and a handle (8) is fixedly connected to the outer side of the support plate (7).

6. The hydrogenation reactor with replaceable catalyst according to claim 3, characterized in that: A diffuser (19) is fixedly connected inside the feeding pipe (4).

7. The hydrogenation reactor with replaceable catalyst according to claim 6, characterized in that: A distributor (18) is installed inside the cavity, and the distributor (18) is located below the diffuser (19).

8. The hydrogenation reactor with replaceable catalyst according to claim 5, characterized in that: A support plate (20) is fixedly connected to the inner wall of the cavity, and the support plate (20) is located below the filling frame (14).

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