Slurry bed reactor
By setting up separation and collection structures in the slurry bed reactor, effective separation of gas and liquid phases is achieved, solving the problems of increased energy consumption and high cost caused by the carry-over of light components by liquid, improving separation efficiency and reducing operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING PETROCHEM ENG
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-08
AI Technical Summary
In existing slurry bed reactors, the entrainment of light components in the liquid phase during gas-liquid separation leads to increased system energy consumption and high operating costs.
A separation structure and a flow collection structure are set up inside the reactor. Through the coordinated operation of the separation channel and the exhaust channel, the gas and liquid phases are effectively separated, preventing the light component liquid from being carried out.
It improves gas-liquid separation efficiency and reduces system energy consumption and operating costs.
Smart Images
Figure CN224207983U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical equipment technology, specifically to a slurry bed reactor. Background Technology
[0002] Slurry bed reactors are widely used in multiphase reaction processes in petrochemical, coal chemical and other fields due to their excellent heat and mass transfer performance.
[0003] In existing technologies, the gas-liquid two-phase mixture at the top of a slurry bed reactor typically enters the downstream separation unit directly through the upper outlet. However, due to the entrainment of light liquid components during the reaction process, the gas-liquid mixture stream contains a large amount of unseparated light liquid components that enter the subsequent processing system. This not only increases the burden on the downstream separation unit and causes a significant increase in system energy consumption, but also significantly increases the construction investment and operating costs of downstream equipment, limiting the process optimization and economic benefits of the entire plant. Utility Model Content
[0004] In view of this, the present invention provides a slurry bed reactor to solve the problem that in the prior art, when slurry bed reactors are performing gas-liquid separation, light liquid components are easily discharged with the gas, resulting in a significant increase in system energy consumption and high operating costs.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0006] This invention provides a slurry bed reactor, comprising: a reaction vessel, a separation structure, and a collection structure; the reaction vessel has a reaction chamber, and the top of the reaction vessel has a gas outlet; the separation structure is disposed within the reaction chamber, the upper end of the separation structure is sealed to the top of the reaction vessel, the separation structure has a separation channel arranged radially, the middle part of the separation structure forms an exhaust channel, the outer end of the separation channel communicates with the reaction chamber, the inner end of the separation channel communicates with the exhaust channel, and the upper end of the exhaust channel communicates with the gas outlet; the upper end of the collection structure is connected to the bottom of the separation structure, so that the lower end of the exhaust channel is closed, the collection structure has a liquid discharge channel, the upper end of the liquid discharge channel communicates with the lower end of the separation channel, and the lower end of the liquid discharge channel communicates with the reaction chamber.
[0007] It has the following advantages:
[0008] By incorporating a separation structure and a flow-collecting structure inside the reactor, effective separation of the gas and liquid phases is achieved. Through the coordinated operation of the separation channel and the exhaust channel, the gas-liquid mixture in the reaction chamber enters the separation structure radially. In the separation channel, gas and liquid are separated. The gas is guided to the gas outlet of the reactor through the exhaust channel, while the liquid flows back into the reaction chamber under gravity through the drain channel. The flow-collecting structure seals the lower end of the exhaust channel, preventing liquid from entering the exhaust channel. This effectively improves the efficiency of gas discharge while preventing the carry-out of light liquid components. The design of this separation structure and flow-collecting structure effectively prevents the loss of light liquid components, improves gas-liquid separation efficiency, and reduces costs.
[0009] According to some embodiments of the present invention, the separation structure includes a fixed frame and guide plates disposed between the fixed frames. The fixed frame includes an upper ring frame and a lower ring frame. The upper end of the guide plate is fixedly connected to the upper ring frame, and the lower end of the guide plate is fixedly connected to the lower ring frame. The guide plate is provided in multiple pieces and is evenly spaced along the circumference. The separation channel is formed between two adjacent guide plates.
[0010] According to some embodiments of the present invention, the guide plate has a corrugated structure so that the separation channel is arranged in a wave-like manner.
[0011] According to some embodiments of the present invention, in the radial direction, there is a first spacing between two adjacent guide plates on the outer side and a second spacing between two adjacent guide plates on the inner side. The first spacing is greater than the second spacing, so that the width of the separation channel on the side closer to the reaction chamber is greater than the width on the side closer to the exhaust channel.
[0012] According to some embodiments of the present invention, a plurality of guide grooves are provided on both sides of the guide plate, the length direction of the guide grooves is arranged in the vertical direction, and the lower end of the guide grooves penetrates the bottom surface of the guide plate so that the guide grooves are connected to the drainage channel.
[0013] According to some embodiments of the present invention, the guide groove is corrugated or sawtooth-shaped along its length.
[0014] According to some embodiments of the present invention, the flow collection structure includes a flow collector and a flow guide connected to each other. The upper end of the flow collector is fixedly connected to the lower ring frame, and the lower end of the flow collector is fixedly connected to the flow guide. The lower end of the flow guide extends below the designed liquid level of the reaction chamber.
[0015] According to some embodiments of the present invention, the current collector includes an outer shell and an inner shell. The upper end of the outer shell is connected to the outer ring of the lower ring frame, and the upper end of the inner shell is connected to the inner ring of the lower ring frame. The lower end of the outer shell is open, and the lower end of the inner shell is closed. A first drainage channel is formed between the inner shell and the outer shell. A second drainage channel is provided inside the current collector. The first drainage channel and the second drainage channel are connected to form the drainage channel.
[0016] According to some embodiments of the present invention, both the outer shell and the inner shell are inverted conical structures, so that the first drain channel is arranged in a funnel shape.
[0017] According to some embodiments of the present invention, the guide fluid is a tubular structure, and the lower end of the guide fluid is provided with an inclined notch to form a guide portion. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific 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 from these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a slurry bed reactor provided in some embodiments of the present invention;
[0020] Figure 2 for Figure 1 The cross-sectional view of AA shown;
[0021] Figure 3 This is a top view of the guide vane provided in some embodiments of the present invention;
[0022] Figure 4 This is a front view of the guide plate provided in some embodiments of the present invention.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Reactor; 11. Reaction chamber; 12. Gas outlet; 2. Separation structure; 21. Exhaust channel; 22. Separation channel; 23. Guide plate; 24. Fixing frame; 231. Guide groove; 3. Collection structure; 31. Collector; 32. Guide. Detailed Implementation
[0025] 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.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0029] Reference Figure 1As shown, in some embodiments of this utility model, this utility model provides a slurry bed reactor, including: a reaction vessel 1, a separation structure 2, and a collection structure 3; the reaction vessel 1 is provided with a reaction chamber 11, and the top of the reaction vessel 1 is provided with an outlet 12; the separation structure 2 is disposed in the reaction chamber 11, the upper end of the separation structure 2 is sealed to the top of the reaction vessel 1, the separation structure 2 is provided with a separation channel 22, the separation channel 22 is arranged radially, the middle part of the separation structure 2 forms an exhaust channel 21, the outer end of the separation channel 22 is connected to the reaction chamber 11, the inner end of the separation channel 22 is connected to the exhaust channel 21, and the upper end of the exhaust channel 21 is connected to the outlet 12; the upper end of the collection structure 3 is connected to the bottom of the separation structure 2, so that the lower end of the exhaust channel 21 is closed, the collection structure 3 is provided with a drain channel, the upper end of the drain channel is connected to the lower end of the separation channel 22, and the lower end of the drain channel is connected to the reaction chamber 11.
[0030] Specifically, by setting a separation structure 2 and a flow-collecting structure 3 inside the reactor 1, effective separation of the gas and liquid phases is achieved. Through the coordinated operation of the separation channel 22 and the exhaust channel 21, the gas-liquid mixture in the reaction chamber 11 enters the separation structure 2 radially. In the separation channel 22, the gas and liquid are separated. The gas is guided to the gas outlet 12 of the reactor 1 through the exhaust channel 21, while the liquid flows back into the reaction chamber 11 under the action of gravity. The flow-collecting structure 3 closes the lower end of the exhaust channel 21, preventing liquid from entering the exhaust channel 21. This effectively improves the efficiency of gas discharge while preventing the carry-out of light liquid components. The setting of the separation structure 2 and the flow-collecting structure 3 effectively prevents the loss of light liquid components, improves the gas-liquid separation efficiency, and reduces costs.
[0031] In some embodiments of this utility model, the separation structure 2 includes a fixed frame 24 and a guide plate 23 disposed between the fixed frames 24. The fixed frame 24 includes an upper ring frame and a lower ring frame. The upper end of the guide plate 23 is fixedly connected to the upper ring frame, and the lower end of the guide plate 23 is fixedly connected to the lower ring frame. The guide plate 23 is provided in multiple pieces and is evenly spaced along the circumference. A separation channel 22 is formed between two adjacent guide plates 23.
[0032] Specifically, the fixed frame 24 provides the mounting base for the guide plate 23. Through the upper and lower ring frames, and the sealed connection between the separation structure 2 and the upper end of the reactor 1, the separation channel 22 has three openings. This allows the inner and outer sides of the separation channel 22 to connect to the reaction chamber 11 and the exhaust channel 21, respectively, while the lower end connects to the drain channel. By setting multiple guide plates 23, multiple separation channels 22 are formed in the separation structure 2. The length direction of each separation channel 22 is consistent with the radial direction. The gas-liquid mixture flows from the outside to the inside, achieving gas-liquid separation between the separation channels 22. The gas passes through the separation channel 22 and the exhaust channel 21, then exits from the outlet 12. The lighter liquid component, under gravity, enters the drain channel through the lower end of the separation channel 22 and flows back into the reaction chamber 11. The multiple separation channels 22 effectively improve separation efficiency and reduce costs.
[0033] Reference Figure 2 and Figure 3 As shown, in some embodiments of this utility model, the guide plate 23 has a corrugated structure so that the separation channel 22 is arranged in a wave-like manner.
[0034] Specifically, the longer the gas-liquid mixture remains in the separation channel 22, the better the separation effect. By setting the guide plate 23 in a corrugated shape, the separation channel 22 is extended. When the gas-liquid mixture flows radially from the outside to the inside in the separation channel 22, the corrugated shape causes multiple collisions between the gas-liquid mixture and the guide plate 23, thereby improving the gas-liquid separation efficiency.
[0035] Reference Figure 2 As shown, in some embodiments of this utility model, along the radial direction, there is a first spacing between two adjacent guide plates 23 located on the outer side and a second spacing between two adjacent guide plates 23 located on the inner side. The first spacing is greater than the second spacing, so that the width of the separation channel 22 on the side near the reaction chamber 11 is greater than the width on the side near the exhaust channel 21.
[0036] Specifically, along the radial direction, there is a first gap between the outer guide plates 23 and a second gap between the inner guide plates 23, and the first gap is greater than the second gap, so that the separation channel 22 is wider on the side near the reaction chamber 11 and narrower on the side near the exhaust channel 21, so as to further optimize the fluid flow trajectory and improve the separation performance.
[0037] Reference Figure 4 As shown, in some embodiments of this utility model, the guide plate 23 is provided with a plurality of guide grooves 231 on both sides. The length direction of the guide grooves 231 is arranged in the vertical direction. The lower end of the guide grooves 231 penetrates the bottom surface of the guide plate 23 so that the guide grooves 231 are connected to the drainage channel.
[0038] In some embodiments of this utility model, the guide groove 231 is arranged in a corrugated or sawtooth shape along its length.
[0039] Specifically, to enhance the liquid diversion effect, several diversion grooves 231 are provided on both sides of the guide plate 23. The length direction of the diversion grooves 231 is arranged vertically and extends through the bottom of the guide plate 23, so that the diversion grooves 231 and the lower drainage channel form a communication path. The diversion grooves 231 are arranged in a corrugated shape along the length direction, which can increase the liquid sinking channel, avoid liquid accumulation on the surface of the guide plate 23 and blockage of the separation channel 22, and further improve the gas-liquid separation effect.
[0040] In some embodiments of this utility model, the flow collection structure 3 includes a flow collector 31 and a flow guide 32 connected to each other. The upper end of the flow collector 31 is fixedly connected to the lower ring frame, and the lower end of the flow collector 31 is fixedly connected to the flow guide 32. The lower end of the flow guide 32 extends below the designed liquid level of the reaction chamber 11.
[0041] Specifically, the flow collection structure 3 is located at the bottom of the separation structure 2, and its upper end is connected to the lower ring frame to guide the liquid back to the reaction chamber 11. The flow collection structure 3 includes a flow collector 31 and a flow guide 32. The lower end of the flow guide 32 extends below the designed liquid level to prevent the liquid from carrying gas upwards and entering the exhaust channel 21, ensuring that the lower end of the exhaust channel 21 is sealed.
[0042] In some embodiments of this utility model, the current collector 31 includes an outer shell and an inner shell. The upper end of the outer shell is connected to the outer ring of the lower ring frame, and the upper end of the inner shell is connected to the inner ring of the lower ring frame. The lower end of the outer shell is open, and the lower end of the inner shell is closed. A first drainage channel is formed between the inner shell and the outer shell. A second drainage channel is provided inside the guide fluid 32. The first drainage channel and the second drainage channel are connected to form a drainage channel.
[0043] Specifically, the current collector 31 includes an outer shell and an inner shell. The upper end of the outer shell is connected to the outer ring of the lower ring frame, and the upper end of the inner shell is connected to the inner ring of the lower ring frame. The lower end of the outer shell is open, and the lower end of the inner shell is closed, forming a first drainage channel. The guide fluid 32 has a second drainage channel inside, which communicates with the first drainage channel to form a through-type drainage channel, used to guide the separated liquid back to the reaction chamber 11.
[0044] In some embodiments of this utility model, both the outer shell and the inner shell are inverted conical structures, so that the first drain channel is arranged in a funnel shape.
[0045] In some embodiments of this utility model, the guide fluid 32 is a tubular structure, and the lower end of the guide fluid 32 is provided with an inclined notch to form a guide portion.
[0046] Specifically, both the outer and inner shells have an inverted conical structure, making the first drainage channel funnel-shaped, which facilitates the concentration of liquid and its rapid flow into the guide fluid 32. The guide fluid 32 has a tubular structure with an inclined notch at its lower end, forming a guide section to further improve the smoothness of liquid return.
[0047] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A slurry bed reactor, characterized in that, include: The reactor (1) is provided with a reaction chamber (11), and the top of the reactor (1) is provided with an outlet (12); A separation structure (2) is provided inside the reaction chamber (11). The upper end of the separation structure (2) is sealed to the top of the reaction vessel (1). The separation structure (2) is provided with a separation channel (22). The separation channel (22) is arranged radially. An exhaust channel (21) is formed in the middle of the separation structure (2). The outer end of the separation channel (22) is connected to the reaction chamber (11). The inner end of the separation channel (22) is connected to the exhaust channel (21). The upper end of the exhaust channel (21) is connected to the gas outlet (12). The upper end of the collection structure (3) is connected to the bottom of the separation structure (2) so that the lower end of the exhaust channel (21) is closed. The collection structure (3) is provided with a drain channel. The upper end of the drain channel is connected to the lower end of the separation channel (22), and the lower end of the drain channel is connected to the reaction chamber (11).
2. The slurry bed reactor according to claim 1, characterized in that, The separation structure (2) includes a fixed frame (24) and a guide plate (23) disposed between the fixed frame (24). The fixed frame (24) includes an upper ring frame and a lower ring frame. The upper end of the guide plate (23) is fixedly connected to the upper ring frame, and the lower end of the guide plate (23) is fixedly connected to the lower ring frame. The guide plate (23) is provided in multiple pieces and is evenly spaced along the circumference. The separation channel (22) is formed between two adjacent guide plates (23).
3. The slurry bed reactor according to claim 2, characterized in that, The guide plate (23) has a corrugated structure so that the separation channel (22) is arranged in a wave-like manner.
4. The slurry bed reactor according to claim 2, characterized in that, Along the radial direction, there is a first spacing between two adjacent guide plates (23) on the outer side and a second spacing between two adjacent guide plates (23) on the inner side. The first spacing is greater than the second spacing, so that the width of the separation channel (22) on the side near the reaction chamber (11) is greater than the width on the side near the exhaust channel (21).
5. The slurry bed reactor according to any one of claims 2-4, characterized in that, The guide plate (23) is provided with several guide grooves (231) on both sides. The length direction of the guide groove (231) is arranged in the vertical direction. The lower end of the guide groove (231) penetrates the bottom surface of the guide plate (23) so that the guide groove (231) is connected to the drainage channel.
6. The slurry bed reactor according to claim 5, characterized in that, The guide groove (231) is corrugated or sawtooth-shaped along its length.
7. The slurry bed reactor according to claim 2, characterized in that, The flow collection structure (3) includes a flow collector (31) and a flow guide (32) connected to each other. The upper end of the flow collector (31) is fixedly connected to the lower ring frame, and the lower end of the flow collector (31) is fixedly connected to the flow guide (32). The lower end of the flow guide (32) extends below the designed liquid level of the reaction chamber (11).
8. The slurry bed reactor according to claim 7, characterized in that, The current collector (31) includes an outer shell and an inner shell. The upper end of the outer shell is connected to the outer ring of the lower ring frame, and the upper end of the inner shell is connected to the inner ring of the lower ring frame. The lower end of the outer shell is open, and the lower end of the inner shell is closed. A first drainage channel is formed between the inner shell and the outer shell. A second drainage channel is provided inside the current collector (32). The first drainage channel and the second drainage channel are connected to form the drainage channel.
9. The slurry bed reactor according to claim 8, characterized in that, Both the outer shell and the inner shell are inverted conical structures, so that the first drainage channel is arranged in a funnel shape.
10. The slurry bed reactor according to claim 7, characterized in that, The guide fluid (32) has a tubular structure, and the lower end of the guide fluid (32) is provided with an inclined notch to form a guide section.