Gas releasing member and apparatus

Abstract

The application provides a gas releasing component and equipment, wherein the gas releasing component comprises an inner layer structure, an outer layer structure and a porous medium; the inner layer structure comprises a first shell with a first sub-space, at least one gas inlet hole and a plurality of through holes; the outer layer structure comprises a second shell and a plurality of gas outlet holes, the second shell is sleeved outside the first shell and surrounds the first shell to form a second sub-space, the second sub-space is communicated with the first sub-space through the through holes; and the porous medium is connected to the first shell and / or the second shell and covers the through holes and / or the gas outlet holes, so that the gas passes through the porous medium when passing through the through holes and / or the gas outlet holes. The gas releasing component and equipment provided by the application at least solve the problem of small application range in the prior art.

Description

Technical Field

[0001] The present application relates to a gas release component and equipment, which can be used in wind tunnel gas diffusion experiments or other occasions requiring uniform distribution of gas. Background Art

[0002] When conducting scalar diffusion experiments of components in a transverse tube bundle, the gas release rate in the height direction of the wind tunnel section has a significant impact on the concentration distribution at the front inlet of the test piece. Therefore, it is necessary to release the gas uniformly along the height direction of the wind tunnel section to ensure the accuracy of the measurement of the diffusion coefficient of the components in the tube bundle.

[0003] In order to achieve uniform release of gas, the gas release components of related technologies usually include changing the inner diameter of the gas release component along the direction of gas flow, changing the aperture of the gas outlet, or setting a double-layer tube structure. However, although the above methods can achieve uniform release of gas, there are still different conditions and restrictions, and the scope of application is small. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a gas release component and device that is unconditionally restricted, has a wide range of applications, and can achieve uniform gas release.

[0005] In a first aspect, an embodiment of the present application provides a gas release member, comprising:

[0006] The inner layer structure includes a first shell having a first subspace, at least one air inlet and a plurality of via holes formed in the first shell and communicating with the first subspace;

[0007] The outer layer structure includes a second shell and a plurality of air outlet holes provided in the second shell, wherein the second shell is sleeved outside the first shell and encloses a second subspace with the first shell, and the second subspace is connected to the first subspace through the via hole;

[0008] The porous medium is connected to the first shell and / or the second shell and covers the through holes and / or the gas outlet holes, so that the gas passes through the porous medium when passing through the through holes and / or the gas outlet holes.

[0009] According to some embodiments of the first aspect of the present application, there are multiple porous media, and each porous medium covers each via hole and / or vent hole respectively;

[0010] Alternatively, the number of the porous medium is one, and the one porous medium covers a plurality of through holes and / or a plurality of air outlet holes.

[0011] According to some embodiments of the first aspect of the present application, the porous medium is filled in the second subspace.

[0012] According to some embodiments of the first aspect of the present application, multiple vias are opened on one side of the first shell in the first direction, and the air outlet is opened on one side of the second shell in the second direction, and the first direction intersects with the second direction.

[0013] According to some embodiments of the first aspect of the present application, the angle between the first direction and the second direction is 180°.

[0014] According to some embodiments of the first aspect of the present application, the plurality of air outlet holes are arranged at equal intervals, and / or the plurality of via holes are arranged at equal intervals.

[0015] According to some embodiments of the first aspect of the present application, the apertures of the plurality of air outlet holes are the same, and / or the apertures of the plurality of via holes are the same.

[0016] According to some embodiments of the first aspect of the present application, the number of the air inlet is one, and the air inlet is provided at one axial end of the first shell;

[0017] Alternatively, the number of the air inlet holes is two, and the two air inlet holes are respectively arranged at two axial ends of the first shell.

[0018] According to some embodiments of the first aspect of the present application, the axial cross-section of the gas release member is circular, elliptical, square, rectangular, or polygonal.

[0019] In a second aspect, an embodiment of the present application further provides a gas release device, comprising a gas release component as described in any one of the foregoing items.

[0020] The gas release member and device provided by the embodiments of the present application bring at least the following beneficial effects:

[0021] By covering the through holes and / or the air outlets with porous media, the resistance of the gas when it flows out of the first subspace through the through holes and / or the resistance of the gas when it flows out of the second subspace through the air outlets is increased, thereby reducing the influence of the static pressure difference on the two sides of the through holes and the two sides of the air outlets on the gas outflow speed, thereby making the flow speed of multiple air outlets consistent; at the same time, by adding the porous media, the air flow speed at the air outlet is independent of the gas type, the hole size, the pipe diameter and the air inlet flow speed, and the scope of application is wider.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of a gas release component provided in some embodiments of the present application;

[0025] Figure 2 yes Figure 1 A cross-sectional view of the gas release member along line AA is shown;

[0026] Figure 3 yes Figure 1 A cross-sectional view of the gas release member along line BB is shown;

[0027] Figure 4 is a diagram of axial pressure distribution in the second subspace of a gas release member provided in some embodiments of the present application;

[0028] Figure 5 This is a diagram of the axial velocity distribution at the gas outlet in the gas release component provided in some embodiments of the present application.

[0029] In the accompanying drawings: 100, gas release component; 10, inner layer structure; 11, first shell; 12, air inlet; 13, through hole; 20, outer layer structure; 21, second shell; 22, air outlet; 30, porous medium; 101, first subspace; 102, second subspace; 1, first direction; 2, second direction. DETAILED DESCRIPTION

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application embodiments can be implemented without the need for some of these specific details. The following description of the embodiments is merely for providing a better understanding of the present application by illustrating the examples of the present application.

[0031] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of this application.

[0032] In the description of the embodiments of this application, "several" means one or more, "many" means two or more, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0033] In the description of the embodiments of the present application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technical personnel in the relevant technical field can reasonably determine the specific meaning of the above terms in this application based on the specific content of the technical solution.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.

[0035] Figure 1 is a schematic diagram of the three-dimensional structure of a gas release component provided in some embodiments of the present application; Figure 2 yes Figure 1 A cross-sectional view of the gas release member along line AA is shown; Figure 3 yes Figure 1 A cross-sectional view of the gas release member along line BB is shown; Figure 4 is a diagram of axial pressure distribution in the second subspace of a gas release member provided in some embodiments of the present application; Figure 5 This is a diagram of the axial velocity distribution at the gas outlet in the gas release component provided in some embodiments of the present application.

[0036] Please refer to Figures 1 to 5 The embodiment of the present application provides a gas release member 100, comprising an inner layer structure 10, an outer layer structure 20, and a porous medium 30. The inner layer structure 10 comprises a first shell 11 having a first subspace 101, at least one air inlet 12 and a plurality of through holes 13 provided in the first shell 11 and communicating with the first subspace 101; the outer layer structure 20 comprises a second shell 21 and a plurality of air outlet holes 22 provided in the second shell 21. The second shell 21 is sleeved outside the first shell 11 and encloses a second subspace 102 with the first shell 11. The second subspace 102 communicates with the first subspace 101 through the through holes 13; the porous medium 30 is connected to the first shell 11 and / or the second shell 21, and covers the through holes 13 and / or the air outlet holes 22, so that gas passes through the porous medium 30 when passing through the through holes 13 and / or the air outlet holes 22.

[0037] The first housing 11 has a first subspace 101. Specifically, the shape of the first subspace 101 is adapted to the first housing 11. The first housing 11 can be straight, curved, or bent. Accordingly, the shape of the first subspace 101 can also be straight, curved, or bent. This is not limited in this application.

[0038] The air inlet 12 can be set at the end of the first shell 11 or at the side surface away from the through hole 13. In the embodiment of the present application, since the second shell 21 is arranged outside the first shell 11, the circumference of the first shell 11 cannot be connected to the outside world. Therefore, in the embodiment of the present application, the air inlet 12 is usually set at the end of the first shell 11.

[0039] There is at least one air inlet hole 12 , that is, the air inlet hole 12 can be provided at either end of the first shell 11 . In this case, the gas enters the first subspace 101 from one end of the first shell 11 , flows along the axial direction of the first subspace 101 , and finally flows into the second subspace 102 through the through hole 13 .

[0040] At the same time, the air inlet 12 can also be set at both ends of the first shell 11. In this case, the gas enters the first subspace 101 from both ends of the first shell 11 at the same time. It can be selected according to actual needs and this application does not limit this.

[0041] The via hole 13 is used to connect the first subspace 101 and the second subspace 102 . At the same time, in order to achieve uniform release of gas along the axial direction of the gas release member 100 , multiple via holes 13 can be arranged in sequence along the axial direction of the gas release member 100 .

[0042] The axial direction of the gas release member 100 is also the direction of the axis of the gas release member 100. In an embodiment where the gas release member 100 is a straight cylinder, a plurality of through holes 13 may be provided at intervals along a straight line; in an embodiment where the gas release member 100 is a curved cylinder, a plurality of through holes 13 may be provided at intervals along a curve; in an embodiment where the gas release member 100 is a bent cylinder, a plurality of through holes 13 may be provided at intervals along a line connecting the axes of the various sections of the gas release member 100.

[0043] The arrangement of the gas outlet holes 22 on the second housing 21 is similar to the arrangement of the through holes 13 on the first housing 11, and will not be repeated here. For example, in an embodiment where the gas release member 100 is a straight cylinder, the connecting line between the multiple through holes 13 or the multiple gas outlet holes 22 can be arranged to form a straight line to ensure that the state of the gas remains consistent as much as possible when passing through each through hole 13 or gas outlet hole 22.

[0044] The second shell 21 is sleeved on the first shell 11, and the second shell 21 and the first shell 11 enclose the second sub-space 102. That is, the shape of the second shell 21 is adapted to the first shell 11, and at least part of the second shell 21 is arranged to be spaced apart from the first shell 11 to form the second sub-space 102. Exemplarily, in the embodiment, the two ends of the second shell 21 are connected to the first shell 11, and the second shell 21 and the first shell 11 jointly enclose the second sub-space 102.

[0045] The porous medium 30 functions to throttle, that is, to provide resistance for the gas to pass through the through hole 13 or the gas outlet hole 22, so as to balance the static pressure difference on both sides of the through hole 13 or the gas outlet hole 22, and then unify the speed of the gas flowing out.

[0046] The type of the porous medium 30 can be a wire mesh, sintered powder or foam, and the material can be selected from stainless steel or copper.

[0047] The connection mode between the porous medium 30 and the first shell 11 or the second shell 21 can be bonding, welding or even directly integrated.

[0048] In the embodiments of the present application, on the one hand, the porous medium 30 is arranged to cover the through hole 13 and / or the gas outlet hole 22 to increase the resistance when the gas passes through, so as to balance the different static pressure differences caused by the different speeds of the gas flowing through different through holes 13 and / or gas outlet holes 22, so that the speed of the gas passing through the through hole 13 and / or the gas outlet hole 22 tends to be consistent; on the other hand, the gas release member 100 is arranged to include the inner layer structure 10 and the outer layer structure 20, so that after the gas enters the first sub-space 101 through the gas inlet hole 12, the gas needs to flow into the second sub-space 102 through the through hole 13 first, and then flow out from the second sub-space 102 through the gas outlet hole 22. In this way, the annular chamber formed in the radial direction by the second sub-space 102 can be used to further balance the flow rate of the gas at each gas outlet hole 22, and finally the uniform speed of the gas release is realized.

[0049] The gas release member 100 provided by the embodiments of the present application can adapt to more working conditions and has a wider range of application, because the speed of the gas release is independent of the size of the through hole 13 or the gas outlet hole 22, independent of the pipe diameter of the inner layer structure 10 or the outer layer structure 20, and independent of the type of the gas.

[0050] In some embodiments of the present application, the number of the porous media 30 is multiple, and each porous medium 30 covers each through hole 13 and / or gas outlet hole 22.

[0051] In these embodiments of the present application, a plurality of porous media 30 may be provided. In an embodiment where the porous media 30 covers the vias 13, the number of porous media 30 may be equal to the number of vias 13, with one porous medium 30 covering one via 13. In an embodiment where the porous media 30 covers the vents 22, the number of porous media 30 may be equal to the number of vents 22, with one porous medium 30 covering one vent 22. In an embodiment where the porous media 30 covers both the vias 13 and the vents 22, the number of porous media 30 may be equal to the total number of the vias 13 and the vents 22, with one porous medium 30 covering one via 13 or one vent 22.

[0052] In some embodiments of the present application, the number of the porous medium 30 is one, and one porous medium 30 covers a plurality of through holes 13 and / or a plurality of air outlet holes 22 .

[0053] In these embodiments of the present application, the porous medium 30 can be set as an integral structure. In the embodiment where the porous medium 30 covers the vias 13, a whole piece of porous medium 30 can be set to cover multiple vias 13; in the embodiment where the porous medium 30 covers the air outlet holes 22, a whole piece of porous medium 30 can be set to cover multiple air outlet holes 22.

[0054] In some embodiments of the present application, the porous medium 30 is filled in the second subspace 102 .

[0055] In these embodiments of the present application, the porous medium 30 is filled in the second subspace 102 , that is, a piece of the porous medium 30 covers the plurality of via holes 13 and the plurality of air outlet holes 22 at the same time.

[0056] In these embodiments of the present application, the structure and shape of the porous medium 30 will not affect the outflow velocity of the gas and can be selected according to actual needs.

[0057] In some embodiments of the present application, multiple vias 13 are opened on one side of the first shell 11 in the first direction 1, and the air outlet 22 is opened on one side of the second shell 21 in the second direction 2. The first direction 1 and the second direction 2 intersect.

[0058] In the embodiments of the present application, the first direction 1 and the second direction 2 are both directions arranged along the radial direction of the gas release member 100 .

[0059] In these embodiments of the present application, by setting the first direction 1 and the second direction 2 to intersect, the through hole 13 and the air outlet 22 are radially staggered. In this way, after the gas enters the second subspace 102 through the through hole 13, it cannot flow out of the air outlet 22 immediately, but needs to flow in the annular space formed radially in the second subspace 102 before flowing out of the air outlet 22, so as to further balance the flow rate of the gas when flowing out of each air outlet 22.

[0060] In some embodiments of the present application, the angle between the first direction 1 and the second direction 2 is 180°.

[0061] In these embodiments of the present application, the distance between the through hole 13 and the gas outlet hole 22 in the radial direction is the farthest, so as to further improve the gas flow rate balancing effect.

[0062] In some embodiments of the present application, the plurality of air outlet holes 22 are arranged at equal intervals and / or the plurality of via holes 13 are arranged at equal intervals; the plurality of air outlet holes 22 have the same aperture and / or the plurality of via holes 13 have the same aperture.

[0063] In some embodiments of the present application, the number of the air inlet hole 12 is one, and the air inlet hole 12 is provided at one axial end of the first shell 11;

[0064] Alternatively, the number of the air inlet holes 12 is two, and the two air inlet holes 12 are respectively provided at two ends of the first shell 11 in the axial direction.

[0065] In these embodiments of the present application, the double-layer structure of the gas release component 100 is adapted, and gas is introduced into the first subspace 101 from the end of the first shell 11. Compared with the method of introducing gas from the side wall of the first shell 11, the gas can flow quickly along the axial direction to each through hole 13, which is beneficial to the balance of flow rate at each through hole 13.

[0066] In some embodiments of the present application, the cross-section of the gas release member 100 in the axial direction is circular, elliptical, square, rectangular or polygonal, wherein the polygon can be a regular polygon or an irregular polygon, which can be selected according to actual conditions.

[0067] Some embodiments of the present application further provide a gas release device, which includes the gas release component provided by the aforementioned embodiments, and the gas release device has a wider scope of application.

[0068] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the embodiment of the present application, and these modifications or replacements should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be based on the protection scope of the claims.

Claims

1. A gas release member, characterized in that: include: The inner layer structure includes a first shell having a first subspace, at least one air inlet and a plurality of via holes formed in the first shell and communicating with the first subspace; The outer layer structure includes a second shell and a plurality of air outlet holes provided in the second shell, wherein the second shell is sleeved outside the first shell and encloses a second subspace with the first shell, and the second subspace is connected to the first subspace through the through holes; The porous medium is connected to the first shell and / or the second shell and covers the through hole and / or the gas outlet, so that the gas passes through the porous medium when passing through the through hole and / or the gas outlet.

2. The gas release member according to claim 1, wherein There are multiple porous media, each of which covers each of the via holes and / or the air outlet holes; Alternatively, the number of the porous medium is one, and the one porous medium covers a plurality of the via holes and / or a plurality of the air outlet holes.

3. The gas release member according to claim 2, wherein: The porous medium is filled in the second subspace.

4. The gas release member according to claim 1, wherein The plurality of via holes are opened on one side of the first shell in a first direction, and the air outlet holes are opened on one side of the second shell in a second direction, and the first direction intersects with the second direction.

5. The gas release member according to claim 4, characterized in that The angle between the first direction and the second direction is 180°.

6. The gas release member according to claim 1, wherein The plurality of air outlet holes are arranged at equal intervals, and / or the plurality of via holes are arranged at equal intervals.

7. The gas release member according to claim 1, wherein The apertures of the plurality of air outlet holes and / or the apertures of the plurality of via holes are the same.

8. The gas release member according to claim 1, wherein There is one air inlet hole, and the air inlet hole is provided at one axial end of the first shell; Alternatively, the number of the air inlet holes is two, and the two air inlet holes are respectively arranged at two axial ends of the first shell.

9. The gas release member according to claim 8, wherein: The cross section of the gas release member in the axial direction is circular, elliptical, square, rectangular or polygonal.

10. A gas release device, characterized in that: Comprising the gas release member according to any one of claims 1 to 9.

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