Gas distributor

Abstract

The utility model discloses a gas distributor which comprises a supporting ring, a container shell and a gas distribution plate, and the supporting ring is provided with a first end and a second end which are opposite to each other; one end of the container shell is open, a set of air inlet holes are formed in the other end of the container shell, the inner wall of the container shell is connected with the first end of the supporting ring in a welded mode, and the supporting ring and the air inlet holes are coaxially arranged. The gas distribution plate is welded to the second end of the supporting ring, a plurality of gas outlet holes are formed in the gas distribution plate, and an included angle smaller than 90 degrees is reserved between the axes of the gas outlet holes and the axis of the gas inlet hole; according to the gas distributor disclosed by the utility model, the gas outlet holes are provided with the flow channels with different inclination angles along different directions, and after fluid passes through the gas distribution plate, the fluid in different directions collides, rubs and stirs with one another to form vortex turbulent fluid, so that a medium is in full contact with an adsorbent, and the medium exchange is more thorough; meanwhile, the container shell is single in stress, local stress is greatly reduced, welding is convenient, the welding quality is easily improved, and the service life of the container shell is longer.

Description

Technical Field

[0001] The utility model relates to the field of gas distribution devices, in particular to a gas distributor. Background Art

[0002] In the gas distributor, the gas distribution plate distributes the gas entering the container shell for heat transfer, mass transfer or adsorption separation of the two media. The more contact area between the two media, the more complete the exchange and the better the function achieved. At present, the gas distribution in the industry is mainly achieved by opening holes in the gas distribution plate, and most of them have the following problems:

[0003] (1) The axes of the gas outlet holes on the gas distribution plate are parallel to the axis of the container shell, resulting in a single gas flow direction, which is not conducive to sufficient gas exchange;

[0004] (2) The gas distribution plate is directly welded to the container shell, and there is a large local stress in the structure. For example, the gravity of the adsorbent carried by the gas distribution plate is transmitted to the container shell through the torque, which greatly increases the stress. The local stress is very concentrated, and the fatigue damage caused by the changes in pressure and temperature during the working process is more serious, shortening the service life of the equipment. At the same time, the contact space between the gas distribution plate and the container shell is narrow, welding is difficult, and it is not convenient to detect the shell connection weld. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the background technology and provide a gas distributor.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] Gas distributor, comprising:

[0008] a support ring having opposing first and second ends;

[0009] A container shell, one end of which is open and the other end of which is provided with a group of air inlet holes, the inner wall of the container shell is welded to the first end of the support ring, and the support ring is coaxially arranged with the air inlet holes; and

[0010] An air distribution plate is welded to the second end of the support ring. A plurality of air outlet holes are formed on the air distribution plate. An angle less than 90° is left between the axes of the plurality of air outlet holes and the axis of the air inlet hole.

[0011] Furthermore, the intersection points of the axes of the plurality of air outlet holes and the axis of the air inlet hole are all located outside the first end of the support ring.

[0012] Furthermore, a plurality of circles of air hole groups are arranged on the air distribution plate around the axis of the air inlet hole, and each circle of the air hole group includes a plurality of the air outlet holes opened around the axis of the air inlet hole.

[0013] Furthermore, the inner diameters of all the air outlet holes in each circle of the air outlet groups are equal, and the inner diameters of the air outlet holes in adjacent circles of the air outlet groups are not equal.

[0014] Furthermore, along the radial direction of the air distribution plate, in any two adjacent circles of air hole groups, the inner diameter of the air outlet holes in the outer circle of air hole groups is greater than the inner diameter of the air outlet holes in the inner circle of air hole groups.

[0015] Furthermore, along the radial direction of the air distribution plate, in any two adjacent circles of air hole groups, the angle value between the axis of the air outlet hole in the outer circle air hole group and the axis of the air inlet hole is different from the angle value between the axis of the air outlet hole in the inner circle air hole group and the axis of the air inlet hole.

[0016] Furthermore, in the direction from the inner circle to the outer circle, the angles between the axes of the air outlet holes and the axes of the air inlet holes in all odd-numbered circles are equal, and the angles between the axes of the air outlet holes and the axes of the air inlet holes in the even-numbered circles are equal.

[0017] Furthermore, the angle between the axis of the air outlet and the axis of the air inlet in the odd-numbered circles is defined as α, and the angle between the axis of the air outlet and the axis of the air inlet in the even-numbered circles is defined as β, then α>β.

[0018] Furthermore, a plurality of air outlet holes are also provided on the side wall of the support ring.

[0019] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0020] In the gas distributor of the utility model, the gas outlets have flow channels with different inclinations along different directions. After the fluid passes through the gas distribution plate, the fluids in different directions collide, rub and stir with each other to form a vortex-shaped turbulent fluid, so that the medium is fully in contact with the adsorbent, the medium exchange is more thorough, and the purity, output and efficiency are improved;

[0021] At the same time, the gas distributor of the utility model has a support ring transition structure. After the gas distribution plate is connected to the support ring by open welding, the support ring is welded to the container shell. The support ring changes the force of the gas distribution plate under the gravity load of the adsorption medium. The pulling, pressing, squeezing and torsion force are not directly transmitted to the container shell, but are transmitted to the container shell after the force is received by the gas distribution plate support plate, so that the force of the container shell becomes single and the local stress is greatly reduced.

[0022] In addition, the connection between the support ring and the container shell is an open space, which provides a large operating space and is easy to achieve welding. It is also more convenient to perform nondestructive testing on the surface of the welded joint after welding, making it easy to ensure the quality of welding and extend the service life of the container shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the internal structure of the gas distributor of the utility model;

[0024] Figure 2 It is a top view of the air distribution plate of the utility model;

[0025] Icon: 1-support, 2-support ring, 3-container shell, 4-air outlet, 5-air distribution plate, 50-air hole group, 6-air inlet. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Reference Figure 1 and Figure 2 The utility model discloses a gas distributor, which includes a support 1, a support ring 2, a container shell 3 and a gas distribution plate 5.

[0028] Among them, the support 1 is used to install the container shell 3, the upper end of the container shell 3 is open, the lower end of the container shell 3 is in a spherical shell shape, and a group of air inlet holes 6 are arranged at the center of the lower end of the container shell 3. The air inlet holes 6 are located on the central axis of the support 1. The diameter of the support ring 2 is much larger than the diameter of the air inlet holes 6, and the lower end of the support ring 2 is arranged on the inner wall of the container shell 3; the inner wall of the container shell 3 is welded to the lower end (first end) of the support ring 2, and the support ring 2 and the air inlet holes 6 are arranged coaxially.

[0029] In addition, the air distribution plate 5 is welded to the upper end (second end) of the support ring 2, and a plurality of groups of air outlet holes 4 are provided on the air distribution plate 5, and an angle less than 90° is left between the axis of each group of air outlet holes 4 and the axis of the air inlet hole 6, that is, Figure 1 The angles α and β shown in .

[0030] Among them, the plurality of air outlet holes 4 are arranged divergently from the first end to the second end of the support ring 2 , that is, the intersection point of the axis of each group of air outlet holes 4 and the axis of the air inlet hole 6 is located outside the first end of the support ring 2 .

[0031] Reference Figure 2In one embodiment, a plurality of circles of air hole groups 50 are arranged on the air distribution plate 5 around the axis of the air inlet hole 6. In this embodiment, there are three circles of air hole groups 50, wherein each circle of air hole groups 50 includes a plurality of air outlet holes 4 opened around the axis of the air inlet hole 6.

[0032] Among them, the inner diameters of all the air outlet holes 4 in each circle of the air hole group 50 are equal. In addition, the inner diameters of the air outlet holes 4 in any adjacent circles of the air hole group 50 are not equal. After the gas enters the air outlet holes 4 of the air distribution plate 5, the diameter of the air outlet holes 4 changes. In this way, the gas is diverted according to the different distances between different air outlet holes 4 and the air inlet holes 6, so that the gas passing through the air distribution plate 5 is evenly distributed.

[0033] In one embodiment, along the radial direction of the support ring 2, in any two adjacent circles of pore groups 50, the inner diameter of the pores 4 in the outer circle pore group 50 is greater than the inner diameter of the pores 4 in the inner circle pore group 50, that is, the inner diameter of the pores 4 on the air distribution plate 5 gradually increases from the inner circle to the outer circle; Figure 1 Since the gas is discharged from the gas outlet holes 4 obliquely upward, the amount of gas passing through the outer ring gas outlet holes 4 is less than that of the inner ring. Therefore, a larger diameter of the gas outlet holes 4 is set on the outer ring side, which is conducive to uniform gas outlet of different gas outlet holes 4.

[0034] In addition, along the radial direction of the support ring 2, in any two adjacent circles of air hole groups 50, the angle value between the axis of the air outlet hole 4 located in the outer circle air hole group 50 and the axis of the air inlet hole 6 is different from the angle value between the axis of the air outlet hole 4 located in the inner circle air hole group 50 and the axis of the air inlet hole 6.

[0035] Reference Figure 1 Specifically, in the direction from the inner circle to the outer circle, the angles between the axes of the air outlet holes 4 and the air inlet holes 6 in the odd-numbered circles are equal, and the angles between the axes of the air outlet holes 4 and the air inlet holes 6 in the even-numbered circles are equal.

[0036] In one embodiment, the angle between the axis of the air outlet 4 in the odd-numbered circles and the axis of the air inlet 6 is defined as α, and the angle between the axis of the air outlet 4 in the even-numbered circles and the axis of the air inlet 6 is defined as β, then α>β. Since the air outlet 4 in the odd-numbered circles is always on the inner side of the air outlet 4 in the even-numbered circles, by setting α>β, the gas discharged from the air outlet 4 in the odd-numbered circles can be mixed with the gas discharged from the air outlet 4 in the even-numbered circles, that is, different air outlets 4 have flow channels with different inclinations along different directions. After the fluid passes through the air distribution plate 5, the fluids in different directions collide, rub, and stir with each other to form a vortex-shaped turbulent fluid, so that the medium is fully in contact with the adsorbent on the air distribution plate 5, the medium exchange is more thorough, and the purity, output and efficiency are improved.

[0037] In addition, in one embodiment, a plurality of gas outlet holes 4 are also provided on the side wall of the support ring 2, and the gas outlet holes 4 are inclined downward, so that the gas can easily flow into the narrow space formed by the support ring 2 and the container shell 3, making the gas distribution more uniform and achieving the purpose of good exchange.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas distributor, characterized in that: include: A support ring (2) having opposite first and second ends; A container shell (3) having an open end and a group of air inlet holes (6) at the other end, the inner wall of the container shell (3) being welded to the first end of the support ring (2), and the support ring (2) and the air inlet holes (6) being coaxially arranged; and An air distribution plate (5) is welded to the second end of the support ring (2), and a plurality of air outlet holes (4) are provided on the air distribution plate (5). An angle less than 90° is left between the axes of the plurality of air outlet holes (4) and the axis of the air inlet hole (6).

2. The gas distributor according to claim 1, characterized in that The intersection points of the axes of the plurality of air outlet holes (4) and the axis of the air inlet hole (6) are all located outside the first end of the support ring (2).

3. The gas distributor according to claim 1 or 2, characterized in that: The air distribution plate (5) is provided with a plurality of circles of air hole groups (50) around the axis of the air inlet hole (6), and each circle of the air hole group (50) includes a plurality of the air outlet holes (4) arranged around the axis of the air inlet hole (6).

4. The gas distributor according to claim 3, characterized in that: The inner diameters of all the air outlet holes (4) in each circle of the air hole group (50) are equal, and the inner diameters of the air outlet holes (4) in adjacent circles of the air hole groups (50) are unequal.

5. The gas distributor according to claim 3, characterized in that: Along the radial direction of the support ring (2), in any two adjacent circles of pore groups (50), the inner diameter of the vent holes (4) in the outer circle pore group (50) is greater than the inner diameter of the vent holes (4) in the inner circle pore group (50).

6. The gas distributor according to claim 3, characterized in that: Along the radial direction of the support ring (2), in any two adjacent circles of air hole groups (50), the angle between the axis of the air outlet hole (4) located in the outer circle air hole group (50) and the axis of the air inlet hole (6) is different from the angle between the axis of the air outlet hole (4) located in the inner circle air hole group (50) and the axis of the air inlet hole (6).

7. The gas distributor according to claim 6, characterized in that: In the direction from the inner circle to the outer circle, the angles between the axes of the air outlet holes (4) and the axes of the air inlet holes (6) in all odd-numbered circles are equal, and the angles between the axes of the air outlet holes (4) and the axes of the air inlet holes (6) in even-numbered circles are equal.

8. The gas distributor according to claim 7, characterized in that: Define that the angle between the axis of the air outlet (4) in the odd-numbered circles and the axis of the air inlet (6) is α, and the angle between the axis of the air outlet (4) in the even-numbered circles and the axis of the air inlet (6) is β, then α>β.

9. The gas distributor according to claim 1, characterized in that: A plurality of air outlet holes (4) are also provided on the side wall of the support ring (2).

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