Fluid mixing distributor and adsorption tower
By designing a fluid mixing distributor in petrochemical industry, using the structure of the deflection baffle and the distribution baffle to extend the fluid mixing path and provide multiple distribution ports, the problem of low fluid mixing and distribution efficiency between solid particle beds is solved. The uniform distribution and flow stability of the fluid are achieved.
Patent Information
- Application Number
- CN202420945829.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the petrochemical field, the fluid mixing and distribution efficiency between the beds of solid particles is low, affecting the efficiency and selectivity of adsorption and catalytic reactions.
Design a fluid mixing distributor, including a supplementary material area, a material collection area and a material mixing area, forms a mixing channel and a distribution port through a flow guide baffle and a distribution baffle, extends the fluid mixing path and provides multiple distribution ports to realize the fluid even distribution.
Through the design of multiple countercurrent contacts and distribution ports, the fluid mixing is strengthened, and the uniformity and flow stability of the fluid in the next level solid particle bed is improved, and the local concentration or biased flow of the fluid is avoided, ensuring the uniform distribution of flow and concentration is ensured. .
Smart Images
Figure CN222239674U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of petrochemical industry, and in particular to a fluid mixing distributor and an adsorption tower. Background Art
[0002] In the field of petrochemicals, the process of contact between fluid materials and solid particles in a container containing solid particles is widely used in operations such as adsorption separation and catalytic reactions; and in exothermic catalytic reactions, the control of the temperature and distribution of the fluid is very important. While collecting the main material from the upper bed between the solid particle beds, the main material must also be mixed with the auxiliary material introduced from the outside. Whether the mixing can be efficient and fast, and whether the fluid after mixing can be evenly distributed to the entire bed cross-section has an important impact on adsorption, reaction efficiency or selectivity. Therefore, it is very necessary to provide a device between adjacent solid particle beds that can achieve good mixing and distribution of fluids. Utility Model Content
[0003] The purpose of the present disclosure is to provide a fluid mixing distributor, which can improve the mixing effect, has a simple structure, and ensures stable flow and uniform distribution of the fluid.
[0004] In order to achieve the above object, the present disclosure provides a fluid mixing distributor, which is used to be arranged between upper and lower solid particle beds, comprising:
[0005] The material replenishment area is connected with a feed pipe on the top;
[0006] a material collection zone, the upper part of which is communicated with the upper solid particle bed layer to collect the main material flowing in from the upper solid particle bed layer, and the lower part of which is separated from the lower solid particle bed layer by a partition; and
[0007] A material mixing zone is arranged between the supplementary material zone and the material collecting zone to accommodate the main material and the supplementary material, and the material mixing zone has a plurality of mixing structures spaced apart along its length direction, the mixing structure comprises one or more layers of guide baffles surrounded along the circumference and a distribution baffle arranged inside the innermost layer of the guide baffle, a mixing channel is formed between two adjacent layers of the guide baffles, each layer of the guide baffle has two guide ports opened opposite to each other, and the guide ports between two adjacent layers of the guide baffles are arranged in an alternating manner, and at least two distribution ports for communicating with the next-level solid particle bed layer are arranged inside the distribution baffle.
[0008] Optionally, the distribution baffle is composed of two first U-shaped plates arranged symmetrically according to the center of the guide baffle, the openings of the two first U-shaped plates are back to back and form a 90° angle with the innermost guide port, and the distribution port is opened in the space surrounded by each first U-shaped plate.
[0009] Optionally, the distribution baffle is composed of two first U-shaped plates arranged symmetrically according to the center of the guide baffle, the openings of the two first U-shaped plates are opposite and spaced apart to form an inlet, the inlet forms an angle of 90° with the innermost guide port, and the area jointly enclosed by the two first U-shaped plates is provided with a plurality of the distribution ports.
[0010] Optionally, the space enclosed below each of the first U-shaped plates constitutes the distribution port.
[0011] Optionally, the plurality of distribution openings are evenly spaced and arranged on a center line of the distribution baffle.
[0012] Optionally, each layer of the guide baffles is composed of two symmetrically arranged second U-shaped plates, and the openings of the two second U-shaped plates are opposite to each other and arranged at intervals to form the guide port.
[0013] Optionally, the guide openings on two adjacent layers of the guide baffles form an angle of 90°.
[0014] Optionally, a first partition is provided between the material supplement area and the material mixing area, and a plurality of first through holes are evenly spaced apart on the first partition. Similarly, a second partition is provided between the material collection area and the material mixing area, and a plurality of second through holes are evenly spaced apart on the second partition.
[0015] Optionally, the opening area of the plurality of first through holes gradually decreases as the distance from the feed pipe increases.
[0016] On the other hand, the present disclosure further provides an adsorption tower, comprising the fluid mixing distributor disclosed above.
[0017] The beneficial effects of the present technical solution are as follows: firstly, the mixing path between fluids is extended by setting up the mixing channel, multiple countercurrent contacts of the fluids are achieved, the mixing of the fluids is strengthened, and the uniformity of the fluids distributed to the next level of the solid particle bed is improved; secondly, multiple distribution ports are provided, which is conducive to eliminating and reducing the fluid outlet end effect, ensuring the flow stability, avoiding local concentration or deviation of the fluid, and finally enabling the mixed fluid to be quickly and evenly distributed to the next level of the solid particle bed along each distribution port, so that the flow rate and concentration of the fluid on the cross section of the next level of the solid particle bed are uniform.
[0018] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0020] Figure 1 It is a structural schematic diagram of a specific embodiment of the fluid mixing distributor provided by the present disclosure;
[0021] Figure 2 yes Figure 1 A top view of
[0022] Figure 3 is a schematic diagram of a hybrid structure of Example 1 provided in the present disclosure;
[0023] Figure 4 is a schematic diagram of a hybrid structure of the second embodiment provided by the present disclosure;
[0024] Figure 5 It is a schematic diagram of the hybrid structure of Example 3 provided in the present disclosure.
[0025] Description of Reference Numerals
[0026] 1-material replenishment area, 11-feeding pipe, 2-material mixing area, 3-material collecting area, 4-flow guide baffle, 41-flow guide port, 42-second U-shaped plate, 5-distribution baffle, 51-first U-shaped plate, 52-inlet, 6-distribution port, 7-first partition, 71-first through hole, 8-second partition, 81-second through hole. DETAILED DESCRIPTION
[0027] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.
[0028] In the present disclosure, unless otherwise stated, directional words such as "upper" and "lower" generally refer to the upper and lower parts of the fluid mixing and dispensing device in a normal use state. Figure 2 The drawing is a top view at this time, with the feed pipe at the upper position, and "inside and outside" refer to the contours of the corresponding parts; the above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.
[0029] According to a specific embodiment of the present disclosure, a fluid mixing distributor is provided for being arranged between upper and lower solid particle beds, with reference to Figure 1 and Figure 2As shown, the fluid mixing distributor comprises a supplementary material area 1, a material collecting area 3 and a material mixing area 2. A feed pipe 11 is connected above the supplementary material area 1; the upper part of the material collecting area 3 is connected to the upper solid particle bed layer to collect the main material flowing in from the upper solid particle bed layer, and the lower part is separated from the lower solid particle bed layer by a partition; the material mixing area 2 is arranged between the supplementary material area 1 and the material collecting area 3 to accommodate the main material and the supplementary material, and the material mixing area 2 has a plurality of mixing structures distributed at intervals along its length direction, the mixing structure comprises one or more layers of guide baffles 4 surrounded along the circumference and a distribution baffle 5 arranged inside the innermost layer of the guide baffle 4, a mixing channel is formed between two adjacent layers of the guide baffles 4, each layer of the guide baffle 4 has two oppositely opened guide ports 41, and the guide ports 41 between the two adjacent layers of the guide baffles 4 are arranged in a staggered manner, and at least two distribution ports 6 for communicating with the lower solid particle bed layer are arranged inside the distribution baffle 5.
[0030] refer to Figure 2 As shown in the direction of the arrow, the supplementary material introduced from the outside and the main material from the previous solid particle bed both enter the material mixing zone 2 in the horizontal direction at a certain flow rate. During the flow process, the main material and the supplementary material will first have the first countercurrent contact in the area between several mixing structures to achieve preliminary mixing of the fluid. Then, the two mixed fluids flow in opposite directions from the two guide ports 41 of each mixing structure to the inside of the guide baffle 4. In this way, the mixed fluid can have multiple countercurrent contacts during the flow process inside the mixing channel to achieve further mixing of the fluid, until multiple mixed fluids from different directions flow into the inside of the distribution baffle 5. After the final countercurrent contact, they are quickly and evenly distributed to the next solid particle bed by flowing to each distribution port 6.
[0031] Based on this, firstly, the setting of the mixing channel extends the mixing path between the fluids, realizes multiple countercurrent contacts of the fluids, strengthens the mixing of the fluids, and improves the uniformity of the fluids distributed to the next level of solid particle bed; secondly and particularly importantly, the present invention provides a plurality of distribution ports 6, which are conducive to eliminating and reducing the fluid outlet end effect, ensuring flow stability, avoiding local concentration or deviation of the fluid, and finally enabling the mixed fluid to be quickly and evenly distributed to the next level of solid particle bed along each distribution port 6, thereby making the flow rate and concentration of the fluid on the cross section of the next level of solid particle bed uniform.
[0032] The guide baffles 4 can be constructed in any suitable form. In the specific embodiment of the present disclosure, each layer of the guide baffles 4 is composed of two symmetrically arranged second U-shaped plates 42. The openings of the two second U-shaped plates 42 are opposite and spaced to form the guide ports 41. Optionally, the guide ports 41 on two adjacent layers of the guide baffles 4 can be at an angle of 90 degrees. In this way, the mixing path can be extended to the maximum extent within the effective space to achieve full mixing of the fluid. In addition, the number of the guide baffles 4 can be one or more than two. Figures 3 to 5 As shown, a single guide baffle 4 can be used to form a single-layer structure, which is simple in structure and convenient for spatial arrangement; in other embodiments, a concentric multi-layer structure can also be used to further extend the mixing path.
[0033] Likewise, the distribution baffle 5 can be constructed in any suitable form. Figure 3-5 As shown, the distribution baffle 5 is composed of two first U-shaped plates 51 arranged symmetrically according to the center of the guide baffle 4, wherein the first U-shaped plate can be constructed by a single semicircular arc plate, or can be composed of a section of arc plate plus two straight plates. The present disclosure does not impose any limitation on this, as long as it can enclose a mixing channel for fluid flow.
[0034] In addition, the dispensing port 6 can be constructed and arranged in any form, optionally, refer to Figure 3 In the illustrated embodiment 1, the distribution baffle 5 is composed of two first U-shaped plates 51 which are symmetrically arranged according to the center of the guide baffle 4, wherein the openings of the two first U-shaped plates 51 are opposite to each other and form a 90° angle with the innermost guide port 41, and the distribution port 6 is provided in the space surrounded by each of the first U-shaped plates 51. Optionally, as an embodiment, the space surrounded by each of the first U-shaped plates 51 can constitute one distribution port 6, that is, the cross-sectional area of the distribution port 6 is the space area below the first U-shaped plate.
[0035] On the one hand, the two first U-shaped plates 51 are arranged with their openings facing each other, so that the fluids flowing in through the relatively arranged guide ports 41 will first make countercurrent contact in the space between the two first U-shaped plates 51, and then the fluids will be divided several times along the contours of the two first U-shaped plates 51, further extending the mixing path; then the multiple fluids will enter the corresponding independent distribution baffles 5 respectively, and finally the multiple fluids will be evenly distributed to the next level of solid particle bed through each distribution port 6.
[0036] Optionally, refer to Figure 4 and Figure 5As shown, the distribution baffle 5 is composed of two first U-shaped plates 51 arranged symmetrically according to the center of the guide baffle 4, and the openings of the two first U-shaped plates 51 are opposite and spaced apart to form an inlet 52, and the inlet 52 forms an angle of 90° with the innermost guide port 41, and the area enclosed by the two first U-shaped plates 51 is provided with a plurality of the distribution ports 6.
[0037] Among them, reference Figure 4 In the second embodiment shown, the space enclosed below each of the first U-shaped plates 51 can constitute a distribution port 6 to ensure that the fluid can be stably and quickly distributed to the next level of solid particle bed, that is, the first U-shaped plate 51 and the distribution port 6 are one-to-one corresponding, in other words, the lower end area of the first U-shaped plate 51 is open to construct a distribution port 6.
[0038] In addition, refer to Figure 5 In the third embodiment shown, the plurality of distribution ports 6 can be evenly spaced and arranged on the center line of the distribution baffle 5. Optionally, the distribution port 6 can be configured as a strip hole. In other embodiments, the distribution port 6 can also be configured as a circle, an ellipse, etc., which is not limited by the present disclosure. By evenly opening a plurality of distribution ports in the central area of the distribution baffle 5, the flow stability of the fluid can be met, and the fluid can be separated into more strands, which is conducive to evenly distributing the fluid into the next level of solid particle bed and more conducive to the uniformity of the cross section of the overall bed.
[0039] Of course, in other embodiments, multiple distribution openings 6 may be provided inside each individual first U-shaped plate, and the shapes of the distribution openings 6 may be round holes, rectangular holes, or special-shaped holes, etc., which is not limited in the present disclosure.
[0040] refer to Figure 1 and Figure 2 As shown, in a specific embodiment of the present disclosure, a first partition plate 7 is arranged between the supplementary material area 1 and the material mixing area 2, and a plurality of first through holes 71 are evenly spaced apart on the first partition plate 7. Similarly, a second partition plate 8 is arranged between the material collection area 3 and the material mixing area 2, and a plurality of second through holes 81 are evenly spaced apart on the second partition plate 8.
[0041] In order to achieve equal or similar flow rates of the fluid when passing through the first through holes 71 at different positions, in a specific embodiment of the present disclosure, the opening areas of the plurality of first through holes 71 gradually decrease as the distance from the feed pipe 11 increases.
[0042] refer to Figure 1 and Figure 2As shown, in a specific embodiment of the present disclosure, two material mixing areas 2 and two material collecting areas 3 are symmetrically arranged on both sides of the supplementary material area 1, correspondingly, there are two first partitions 7 and second partitions 8, and the feed pipe 11 is located at the center of the supplementary material area 1.
[0043] At the same time, in order to ensure that the jet velocity flowing into the material mixing zone 2 is the same or similar, the area ratio of the two material collection zones 3 can be set between 0.5-2, and optionally, the ratio can be set to 1:1 to keep the area consistent; similarly, in order to satisfy that the corresponding area ratio of the two material mixing zones 2 is equal to or similar to the corresponding area ratio of the two material collection zones 3, the area ratio of the two material mixing zones 2 can also be between 0.5-2, and optionally, the ratio of the two can be set to 1:1 to achieve an equal or similar proportion of the reaction materials in the two material mixing zones 2.
[0044] Optionally, the multiple first through holes of the two first partitions 7 correspond to each other, and the same applies to the two second partitions 8, which will not be described in detail. And the opening ratio can be set between 0.01-0.6 to ensure the consistency of the countercurrent mixing intensity of the fluid at different positions in the material mixing area 2.
[0045] Optionally, the same number of mixing structures is set in each material mixing zone 2, and the plurality of mixing structures are evenly spaced; or the ratio of the number of mixing structures in two material mixing zones 2 is between 0.5-2.
[0046] According to another aspect of the present disclosure, an adsorption tower is also provided, comprising the fluid mixing distributor disclosed above.
[0047] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0049] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A fluid mixing distributor, used to be arranged between upper and lower solid particle beds, characterized in that: include: The material replenishment area is connected with a feed pipe on the top; A material collection area, the upper part of which is connected to the upper solid particle bed layer to collect the main material flowing in from the upper solid particle bed layer, and the lower part of which is separated from the lower solid particle bed layer by a partition plate; as well as A material mixing zone is arranged between the supplementary material zone and the material collecting zone to accommodate the main material and the supplementary material, and the material mixing zone has a plurality of mixing structures spaced apart along its length direction, the mixing structure comprises one or more layers of guide baffles surrounded along the circumference and a distribution baffle arranged inside the innermost layer of the guide baffle, a mixing channel is formed between two adjacent layers of the guide baffles, each layer of the guide baffle has two guide ports opened opposite to each other, and the guide ports between two adjacent layers of the guide baffles are arranged in an alternating manner, and at least two distribution ports for communicating with the next-level solid particle bed layer are arranged inside the distribution baffle.
2. The fluid mixing dispenser according to claim 1, characterized in that: The distribution baffle is composed of two first U-shaped plates arranged symmetrically according to the center of the guide baffle, the openings of the two first U-shaped plates are opposite to each other and form a 90° angle with the innermost guide port, and the distribution port is opened in the space surrounded by each first U-shaped plate.
3. The fluid mixing dispenser according to claim 1, characterized in that: The distribution baffle is composed of two first U-shaped plates arranged symmetrically according to the center of the guide baffle, the openings of the two first U-shaped plates are opposite and spaced apart to form an inlet, the inlet forms an angle of 90° with the innermost guide port, and a plurality of the distribution ports are provided in the area jointly enclosed by the two first U-shaped plates.
4. The fluid mixing distributor according to claim 2 or 3, characterized in that: The space enclosed below each of the first U-shaped plates constitutes the distribution opening.
5. The fluid mixing dispenser according to claim 3, characterized in that: The plurality of distribution openings are evenly spaced and arranged on a center line of the distribution baffle.
6. The fluid mixing dispenser according to any one of claims 1 to 3 and 5, characterized in that: Each layer of the guide baffle is composed of two symmetrically arranged second U-shaped plates, and the openings of the two second U-shaped plates are opposite and spaced apart to form the guide port.
7. The fluid mixing dispenser according to claim 6, characterized in that: The guide openings on the guide baffles of two adjacent layers form an angle of 90°.
8. The fluid mixing dispenser according to claim 1, characterized in that: A first partition is arranged between the material supplement area and the material mixing area, and a plurality of first through holes are evenly spaced on the first partition. Similarly, a second partition is arranged between the material collection area and the material mixing area, and a plurality of second through holes are evenly spaced on the second partition.
9. The fluid mixing dispenser according to claim 8, characterized in that: The opening area of the plurality of first through holes gradually decreases as the distance from the feed pipe increases.
10. An adsorption tower, characterized in that: Comprising the fluid mixing dispenser according to any one of claims 1-9.