A petrochemical fixed bed reactor

Abstract

The utility model discloses a kind of petroleum chemical fixed bed reactor, belong to fixed bed reactor technical field, its technical scheme main points include reactor structure, the surface of the reactor structure is provided with heat preservation frame, the inner wall of the heat preservation frame is provided with temperature control mechanism, the left side of the reactor structure is provided with hot and cold control structure, the inner wall of the reactor structure is provided with observation window, the inner wall of the reactor structure is provided with access door, the front side of the access door is hingedly connected with handle, solved the petroleum chemical fixed bed reactor of existing when using, mostly difficult to flexibly adjust surface temperature according to reaction demand, easy to cause reaction temperature deviate optimum interval, thereby causing by-reaction increase, product purity and yield drop etc. Problems, at the same time, reactor maintenance is difficult, not convenient for timely discovery and processing internal potential fault, affect the normal operation and service life of fixed bed reactor problem.

Description

Technical Field

[0001] This utility model relates to the field of fixed-bed reactor technology, and in particular to a petrochemical fixed-bed reactor. Background Technology

[0002] A fixed-bed reactor in petrochemicals is a reaction device widely used in petrochemical production. It is filled with granular solid catalysts or solid reactants. These solids are stacked to form a stationary bed of a certain height. When the reactants flow through the gaps between the particles into this stationary bed, they undergo physical or chemical reactions with the surface of the catalyst or solid reactants, thereby realizing a heterogeneous reaction process.

[0003] The existing fixed bed has uneven feeding and condensate can easily enter the packing tube;

[0004] An existing patent (publication number: CN209597138U) discloses a fixed-bed reactor, including a reactor shell. Inside the reactor shell, there is a material distribution plate, a support plate, and several packing tubes disposed between the material distribution plate and the support plate. The material distribution plate and the support plate have inlet holes and outlet holes corresponding to the packing tubes. The inlet hole of the material distribution plate is provided with several upwardly protruding perforated columns. In this utility model fixed-bed reactor, the material distribution plate is provided with multiple protruding perforated columns, and the top of the perforated columns is closed, so that the raw material gas does not directly enter the packing tube, but is fully mixed and uniform inside the end cap, and then enters the packing tube through the gas inlet hole on the side of the perforated column, ensuring uniform feeding. In addition, even if some gas condenses, it will be deposited on the material distribution plate and will not enter the interior of the packing tube.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, in the use of existing fixed-bed reactors in the petrochemical industry, it is often difficult to flexibly adjust the surface temperature according to the reaction requirements, which can easily lead to the reaction temperature deviating from the optimal range. This can result in increased side reactions, decreased product purity and yield, and other problems. Furthermore, maintaining the reactor is difficult, making it hard to detect and address potential internal faults in a timely manner, thus affecting the normal operation and service life of the fixed-bed reactor.

[0006] Therefore, a fixed-bed reactor for petrochemical applications is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a petrochemical fixed-bed reactor that can solve the problems of existing petrochemical fixed-bed reactors, which are mostly difficult to adjust the surface temperature flexibly according to the reaction requirements, easily leading to the reaction temperature deviating from the optimal range, thereby causing an increase in side reactions, a decrease in product purity and yield, etc. At the same time, the reactor is difficult to maintain, and it is not easy to detect and deal with potential internal faults in a timely manner, which affects the normal operation and service life of the fixed-bed reactor.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a petrochemical fixed-bed reactor, comprising a reactor structure, an insulation rack on the surface of the reactor structure, a temperature control mechanism on the inner wall of the insulation rack, a heat control structure on the left side of the reactor structure, an observation window on the inner wall of the reactor structure, an inspection door on the inner wall of the reactor structure, and a handle bolted to the front of the inspection door;

[0009] The temperature control mechanism includes an outlet pipe, a circulation pipe, and an inlet pipe. The left side of the inlet pipe is fixedly connected to the right side of the circulation pipe, and the right side of the outlet pipe is fixedly connected to the left side of the circulation pipe. The circulation pipe is installed on the inner wall of the insulation rack.

[0010] Preferably, the top of the heating and cooling control structure is fixedly connected to a first connecting pipe, and the left side of the first connecting pipe is fixedly connected to the right side of the water inlet pipe.

[0011] Preferably, the top of the hot and cold control structure is fixedly connected to a second connecting pipe, and the right side of the second connecting pipe is fixedly connected to the left side of the water outlet pipe.

[0012] Preferably, a connecting block is bolted to the surface of the reactor structure, and a support leg assembly is bolted to the bottom of the connecting block.

[0013] Preferably, an annular block is bolted to the surface of the support leg assembly, a connecting plate is bolted to the left side of the annular block, and the left side of the connecting plate is bolted to the right side of the thermal control structure.

[0014] Preferably, the surface of the heat preservation frame is provided with a heat insulation frame, and the inner wall of the heat preservation frame is provided with an installation groove for use with the circulation pipe.

[0015] Preferably, the inner wall of the inspection door is provided with a sealing ring, and the surface of the sealing ring is engaged with the inner wall of the reactor structure.

[0016] Preferably, a knob is movably connected to the inner wall of the inspection door, and the surface of the knob is threadedly connected to the inner wall of the reactor structure.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application, by setting a temperature control mechanism, facilitates subsequent output through a cold and heat control structure. The cold and heat control structure transmits the temperature control medium to the inner wall of the inlet pipe, and then the medium enters the inner wall of the circulation pipe through the inlet pipe. This facilitates the adjustment of the temperature of the insulation rack on the surface of the reactor structure. The temperature can be flexibly adjusted according to different reaction requirements to ensure that the reaction proceeds efficiently within a suitable temperature range, reduce the occurrence of side reactions caused by temperature deviations, and improve the purity and yield of the product.

[0019] 2. This application provides operators with a way to directly observe the internal condition of the reactor structure by setting up observation windows and maintenance doors. This allows for timely monitoring of information such as catalyst activity and material reaction progress. The maintenance doors are equipped with handles for easy and quick opening and closing, facilitating maintenance operations such as inspection and replacement of equipment and catalysts inside the reactor structure, thereby reducing the risk of reactor structural failure. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the petrochemical fixed-bed reactor of this utility model;

[0021] Figure 2 This is a structural diagram of the heating and cooling control structure of this utility model;

[0022] Figure 3 This is a structural diagram of the annular block of this utility model;

[0023] Figure 4 This is a structural diagram of the temperature control mechanism of this utility model;

[0024] Figure 5 This is a cross-sectional view of the heat preservation rack of this utility model;

[0025] Figure 6 This is a structural diagram of the inspection door of this utility model;

[0026] Figure 7 This is a structural diagram of the knob of this utility model.

[0027] In the diagram, 1. Reactor structure; 2. Temperature control mechanism; 201. Outlet pipe; 202. Circulation pipe; 203. Inlet pipe; 3. Insulation rack; 4. Heating and cooling control structure; 5. Observation window; 6. Inspection door; 7. Handle; 8. First connecting pipe; 9. Second connecting pipe; 10. Connecting block; 11. Support leg assembly; 12. Ring block; 13. Connecting plate; 14. Heat insulation rack; 15. Mounting groove; 16. Sealing ring; 17. Knob. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-7 The present invention provides the following technical solution:

[0030] A petrochemical fixed-bed reactor includes a reactor structure 1, an insulation rack 3 on the surface of the reactor structure 1, a temperature control mechanism 2 on the inner wall of the insulation rack 3, a heat control structure 4 on the left side of the reactor structure 1, an observation window 5 on the inner wall of the reactor structure 1, an inspection door 6 on the inner wall of the reactor structure 1, and a handle 7 bolted to the front of the inspection door 6.

[0031] The temperature control mechanism 2 includes an outlet pipe 201, a circulation pipe 202 and an inlet pipe 203. The left side of the inlet pipe 203 is fixedly connected to the right side of the circulation pipe 202, and the right side of the outlet pipe 201 is fixedly connected to the left side of the circulation pipe 202. The circulation pipe 202 is installed on the inner wall of the insulation rack 3.

[0032] In this embodiment: By setting a temperature control mechanism 2, it is connected to the circulation pipe 202 through the water outlet pipe 201 during use. The circulation pipe 202 is connected to the water inlet pipe 203, which facilitates the output through the heat control structure 4. The heat control structure 4 transmits the temperature control medium to the inner wall of the water inlet pipe 203. Then, the medium enters the inner wall of the circulation pipe 202 through the water inlet pipe 203, which facilitates the adjustment of the temperature of the heat preservation rack 3 on the surface of the reactor structure 1. The temperature can be flexibly adjusted according to different reaction requirements to ensure that the reaction proceeds efficiently within a suitable temperature range, reduce the occurrence of side reactions caused by temperature deviation, and improve the purity and yield of the product. By setting an observation window 5 and a maintenance door 6, the operator is provided with a way to directly observe the internal condition of the reactor structure 1. Information such as the activity of the catalyst and the reaction process of the materials can be grasped in a timely manner. The maintenance door 6 is equipped with a handle 7, which facilitates quick opening and closing, and facilitates maintenance operations such as inspection and replacement of the internal equipment and catalyst of the reactor structure 1, reducing the risk of reactor structure 1 failure.

[0033] Specifically, such as Figure 2 As shown, the top of the hot and cold control structure 4 is fixedly connected to the first connecting pipe 8, and the left side of the first connecting pipe 8 is fixedly connected to the right side of the water inlet pipe 203.

[0034] Specifically, such as Figure 2 As shown, the top of the hot and cold control structure 4 is fixedly connected to the second connecting pipe 9, and the right side of the second connecting pipe 9 is fixedly connected to the left side of the water outlet pipe 201.

[0035] Specifically, such as Figure 1 As shown, a connecting block 10 is bolted to the surface of the reactor structure 1, and a support leg assembly 11 is bolted to the bottom of the connecting block 10.

[0036] In this embodiment: by setting a first connecting pipe 8 and a second connecting pipe 9, the first connecting pipe 8 is connected to the water inlet pipe 203 and the second connecting pipe 9 is connected to the water outlet pipe 201, which facilitates subsequent output through the heat and cold control structure 4. The medium passes through the first connecting pipe 8, the water inlet pipe 203, the circulation pipe 202, the water outlet pipe 201 and the second connecting pipe 9 in sequence. The medium is then transferred to the inner wall of the heat and cold control structure 4 through the second connecting pipe 9, thus establishing a stable transmission channel between the heat and cold control structure 4 and the temperature control mechanism 2. This ensures that the temperature control medium can circulate efficiently, guarantees the timeliness of temperature regulation, and provides a stable temperature environment for the reaction.

[0037] Specifically, such as Figure 3 As shown, an annular block 12 is bolted to the surface of the outrigger assembly 11, and a connecting plate 13 is bolted to the left side of the annular block 12. The left side of the connecting plate 13 is bolted to the right side of the thermal control structure 4.

[0038] Specifically, such as Figure 5 As shown, the surface of the heat insulation rack 3 is provided with a heat insulation rack 14, and the inner wall of the heat insulation rack 3 is provided with an installation groove 15 that is used in conjunction with the circulation pipe 202.

[0039] In this embodiment, the heat insulation rack 14 further enhances the heat insulation performance of the heat insulation rack 3, significantly reduces heat loss or external heat transfer, and lowers energy consumption. The mounting groove 15 on the inner wall of the heat insulation rack 3 is closely matched with the circulation pipe 202, which not only fixes the position of the circulation pipe 202, but also optimizes the heat exchange path, making the heat exchange between the temperature control medium and the reactor structure 1 more complete and improving the overall temperature control efficiency.

[0040] Specifically, such as Figure 6 As shown, the inner wall of the inspection door 6 is provided with a sealing ring 16, and the surface of the sealing ring 16 is engaged with the inner wall of the reactor structure 1.

[0041] Specifically, such as Figure 7 As shown, a knob 17 is movably connected to the inner wall of the inspection door 6, and the surface of the knob 17 is threadedly connected to the inner wall of the reactor structure 1.

[0042] In this embodiment: the sealing ring 16 on the inner wall of the inspection door 6 is engaged with the inner wall of the reactor structure 1 to form a good sealing effect, preventing material leakage or external impurities from entering during the reaction process, and ensuring the safe conduct of the reaction. The knob 17 is threadedly connected to the reactor structure 1, which ensures that the inspection door 6 is sealed and tight, while facilitating the quick disassembly and installation of the inspection door 6 by the operator, thereby improving the convenience and efficiency of the maintenance of the reactor structure 1.

[0043] Working Principle: During the use of reactor structure 1, a temperature control mechanism 2 is installed. During operation, the outlet pipe 201 is connected to the circulation pipe 202, which in turn is connected to the inlet pipe 203. This facilitates subsequent output via the heating and cooling control structure 4, which transmits the temperature-controlled medium to the inner wall of the inlet pipe 203. The medium then enters the inner wall of the circulation pipe 202 through the inlet pipe 203. This allows for adjustment of the temperature of the insulation rack 3 on the surface of reactor structure 1, enabling flexible temperature adjustment according to different reaction requirements. This ensures efficient reaction within a suitable temperature range, reduces side reactions caused by temperature deviations, and improves product purity and yield. The observation window 5 and maintenance door 6 provide operators with a direct way to observe the internal condition of reactor structure 1, allowing for timely monitoring of catalyst activity, material reaction progress, and other information. The maintenance door 6, equipped with a handle 7, facilitates quick opening and closing, enabling maintenance operations such as inspection and replacement of internal equipment and catalysts, reducing the risk of reactor structure 1 malfunction.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A petrochemical fixed-bed reactor, comprising a reactor structure (1), characterized in that: The surface of the reactor structure (1) is provided with a heat insulation rack (3), the inner wall of the heat insulation rack (3) is provided with a temperature control mechanism (2), the left side of the reactor structure (1) is provided with a hot and cold control structure (4), the inner wall of the reactor structure (1) is provided with an observation window (5), the inner wall of the reactor structure (1) is provided with a maintenance door (6), and a handle (7) is bolted to the front side of the maintenance door (6). The temperature control mechanism (2) includes an outlet pipe (201), a circulation pipe (202) and an inlet pipe (203). The left side of the inlet pipe (203) is fixedly connected to the right side of the circulation pipe (202), and the right side of the outlet pipe (201) is fixedly connected to the left side of the circulation pipe (202). The circulation pipe (202) is installed on the inner wall of the heat preservation rack (3).

2. A petrochemical fixed-bed reactor according to claim 1, characterized in that: The top of the heating and cooling control structure (4) is fixedly connected to a first connecting pipe (8), and the left side of the first connecting pipe (8) is fixedly connected to the right side of the water inlet pipe (203).

3. A petrochemical fixed-bed reactor according to claim 1, characterized in that: The top of the hot and cold control structure (4) is fixedly connected to a second connecting pipe (9), and the right side of the second connecting pipe (9) is fixedly connected to the left side of the water outlet pipe (201).

4. A petrochemical fixed-bed reactor according to claim 1, characterized in that: The reactor structure (1) is bolted with a connecting block (10) on its surface, and a support leg assembly (11) is bolted to the bottom of the connecting block (10).

5. A petrochemical fixed-bed reactor according to claim 4, characterized in that: An annular block (12) is bolted to the surface of the outrigger assembly (11), and a connecting plate (13) is bolted to the left side of the annular block (12). The left side of the connecting plate (13) is bolted to the right side of the heat and cold control structure (4).

6. A petrochemical fixed-bed reactor according to claim 1, characterized in that: The surface of the heat insulation rack (3) is provided with a heat insulation rack (14), and the inner wall of the heat insulation rack (3) is provided with an installation groove (15) for use with the circulation pipe (202).

7. A petrochemical fixed-bed reactor according to claim 1, characterized in that: The inner wall of the inspection door (6) is provided with a sealing ring (16), and the surface of the sealing ring (16) is engaged with the inner wall of the reactor structure (1).

8. A petrochemical fixed-bed reactor according to claim 1, characterized in that: A knob (17) is movably connected to the inner wall of the inspection door (6), and the surface of the knob (17) is threadedly connected to the inner wall of the reactor structure (1).

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