Gas-liquid mixing device

Abstract

The utility model discloses a gas-liquid mixing device. The gas-liquid mixing device comprises a main gas path, an annular cavity, a gas branch and a liquid pipeline, the main gas path is fixedly connected with the annular cavity, and gas can be input into the annular cavity through the main gas path; the input end of the gas branch is fixedly connected to the inner side of the annular cavity, and the annular cavity is arranged on the outer side of the liquid pipeline; the gas branch extends into the liquid pipeline; the gas branch comprises a vertical pipeline and a horizontal pipeline; the output end of the vertical pipeline is fixedly connected with the input end of the horizontal pipeline; the input end of the vertical pipeline is fixedly connected to the inner side of the annular cavity; the vertical pipeline extends into the liquid pipeline; small exhaust holes are formed in the horizontal pipeline and the vertical pipeline. The problem that the gas phase and the liquid phase are not easy to mix in the prior art is solved, and the technical effect of more uniform gas-liquid mixing is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of fluid machinery, and in particular to a gas-liquid mixing device. Background Art

[0002] Gas-liquid two-phase flow is the most common form of multiphase flow. In actual engineering applications, there is gas-liquid mixing in the pipeline. In order to ensure the normal operation of the mixed pipeline, a gas-liquid mixer must be installed at the inlet of the centrifugal pump to make the gas and liquid flow as evenly as possible. The gas-liquid mixing device is very important in two-phase flow.

[0003] In the gas-liquid mixed transmission test device, it is an urgent problem to make the gas phase and liquid phase mix evenly, because the density difference between the gas phase and the liquid phase is large. The density of the gas phase is much smaller than the density of the liquid phase. When the gas phase enters the liquid phase, the gas phase medium moves upward, which is easy to cause gas-liquid separation and it is not easy to achieve uniform mixing of the gas and liquid phases. Utility Model Content

[0004] The embodiment of the present application solves the problem that gas and liquid are difficult to mix in the prior art by providing a gas-liquid mixing device, thereby achieving a technical effect of more uniform gas-liquid mixing.

[0005] An embodiment of the utility model provides a gas-liquid mixing device, characterized in that it includes a main gas circuit, an annular cavity, a gas branch and a liquid pipeline; the main gas circuit is fixedly connected to the annular cavity, and gas can be input into the annular cavity through the main gas circuit; the input end of the gas branch is fixedly connected to the inner side of the annular cavity, and the annular cavity is arranged on the outer side of the liquid pipeline; the gas branch extends into the liquid pipeline; the gas branch includes a vertical pipeline and a horizontal pipeline; the output end of the vertical pipeline is fixedly connected to the input end of the horizontal pipeline; the input end of the vertical pipeline is fixedly connected to the inner side of the annular cavity; the vertical pipeline extends into the liquid pipeline; and exhaust holes are provided on both the horizontal pipeline and the vertical pipeline.

[0006] In a possible implementation, the included angle between the vertical pipeline and the horizontal pipeline is in a range of 60° to 120°.

[0007] In a possible implementation, the vertical pipeline is arranged in plurality along the axial direction of the annular cavity; the plurality of vertical pipelines are fixedly connected to the inner side of the annular cavity; the plurality of vertical pipelines extend into the liquid pipeline at different lengths and are distributed at different cross-sections of the liquid pipeline; the output ends of the plurality of vertical pipelines are fixedly connected to the vertical pipeline; the plurality of vertical pipelines and the plurality of horizontal pipelines can be distributed layer by layer in the liquid pipeline.

[0008] In a possible implementation, the gas branch further includes a radial pipeline, the input end of the radial pipeline is fixedly connected to the inner side of the annular cavity; the output end of the radial pipeline is fixedly connected to the horizontal pipeline; and the radial pipeline is provided with an exhaust hole.

[0009] In a possible implementation, a plurality of first gas circuit branches are provided on the vertical pipeline; the input ends of the plurality of first gas circuit branches are connected to the interior of the vertical pipeline, and the plurality of first gas circuit branches are fixedly connected to the vertical pipeline; and the plurality of first gas circuit branches are provided with the exhaust holes.

[0010] In a possible implementation, a plurality of second gas circuit branches are provided on the horizontal pipeline; the input ends of the plurality of second gas circuit branches are connected to the interior of the horizontal pipeline, and the plurality of second gas circuit branches are fixedly connected to the horizontal pipeline; and the plurality of second gas circuit branches are provided with the exhaust holes.

[0011] In a possible implementation, a plurality of third gas circuit branches are provided on the radial pipeline; the input ends of the plurality of third gas circuit branches are connected to the interior of the radial pipeline, and the plurality of third gas circuit branches are fixedly connected to the radial pipeline; and the plurality of third gas circuit branches are provided with the exhaust holes.

[0012] In a possible implementation, a sealing plate is provided at the bottom of the gas branch, and the sealing plate is fixedly connected to the output end of the horizontal pipeline; the sealing plate can increase the internal pressure of the gas branch.

[0013] One or more technical solutions provided in the embodiments of the present utility model have at least the following technical effects or advantages:

[0014] The embodiment of the utility model adopts a main gas circuit, an annular cavity, a gas branch and a liquid pipeline. The main gas circuit is fixedly connected to the annular cavity, and gas can be input into the annular cavity through the main gas circuit; the annular cavity is fixedly connected to the input end of the gas branch, the annular cavity is arranged on the outside of the liquid pipeline, the gas branch extends into the liquid pipeline, and an exhaust hole is arranged on the gas branch. After the gas passes through the annular cavity and flows steadily, it enters the liquid pipeline through the exhaust hole on the gas branch, so that the gas and liquid phases can be mixed; the gas branch includes a vertical pipeline and a horizontal pipeline, and the vertical pipeline The input end is fixedly connected to the annular cavity, the output end of the vertical pipeline is fixedly connected to the input end of the horizontal pipeline, the vertical pipeline extends into the liquid pipeline, and exhaust holes are provided on both the horizontal pipeline and the vertical pipeline. The vertical pipeline is in the vertical direction of the liquid flow, and the horizontal pipeline is in the direction of the liquid flow. The gas is discharged from the exhaust holes on the vertical pipeline and the exhaust holes in the horizontal direction, which can make the gas more evenly distributed in the liquid. The present application effectively solves the problem that the gas-liquid two phases are difficult to mix in the prior art, and achieves the technical effect of more uniform gas-liquid mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A cross-sectional view of a gas-liquid mixing device provided in an embodiment of the present application;

[0017] Figure 2 A cross-sectional view of a gas branch provided in an embodiment of the present application.

[0018] Icons: 1-main gas line; 11-valve; 2-annular cavity; 3-gas branch; 31-vertical pipeline; 32-horizontal pipeline; 33-radial pipeline; 4-liquid pipeline; 5-exhaust hole; 6-first gas line branch; 7-second gas line branch; 8-sealing plate; 9-third gas line branch. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0021] The embodiment of the utility model provides a gas-liquid mixing device, including a main gas circuit 1, an annular cavity 2, a gas branch circuit 3 and a liquid pipeline 4; the main gas circuit 1 is fixedly connected to the annular cavity 2, and gas can be input into the annular cavity 2 through the main gas circuit 1; the input end of the gas branch circuit 3 is fixedly connected to the inner side of the annular cavity 2, and the annular cavity 2 is arranged on the outer side of the liquid pipeline 4; the gas branch circuit 3 extends into the liquid pipeline 4; the gas branch circuit 3 includes a vertical pipeline 31 and a horizontal pipeline 32; the output end of the vertical pipeline 31 is fixedly connected to the input end of the horizontal pipeline 32; the input end of the vertical pipeline 31 is fixedly connected to the inner side of the annular cavity 2; the vertical pipeline 31 extends into the liquid pipeline 4; the horizontal pipeline 32 and the vertical pipeline 31 are both provided with exhaust holes 5.

[0022] Exemplarily, before the gas is input, the valve 11 needs to be opened first to make the main gas path 1 unobstructed. The main gas path 1 inputs gas into the annular cavity 2, wherein the annular cavity 2 can also be composed of a gas phase annular branch, the gas phase annular branch is connected through a pipeline, and the annular cavity 2 can perform a steady flow treatment on the gas; the annular cavity 2 is connected with the gas branch 3, and the gas after the steady flow can enter the gas branch 3, the annular cavity 2 is sleeved on the outside of the liquid pipeline 4, the gas branch 3 extends into the liquid pipeline 4 and is welded and fixed to the pipe wall of the liquid pipeline 4, and the gas branch 3 is provided with an exhaust hole 5, and the gas in the annular cavity 2 can contact and mix with the liquid in the liquid pipeline 4 through the exhaust hole 5 on the gas branch 3.

[0023] Exemplarily, the exhaust holes 5 are arranged in all directions along the gas branch 3, which can make the gas-liquid mixing more uniform;

[0024] Exemplarily, the gas branch 3 includes a vertical pipeline 31 and a horizontal pipeline 32. The gas in the annular chamber 2 can enter the horizontal pipeline 32 through the vertical pipeline 31, and can enter the liquid pipeline 4 through the exhaust holes 5 on the vertical pipeline 31 and the horizontal pipeline 32, and contact and mix with the liquid in the liquid pipeline 4.

[0025] In the embodiment of the present application, the angle between the vertical pipeline 31 and the horizontal pipeline 32 is in the range of 60° to 120°.

[0026] For example, Figure 1 , Figure 2 As shown, the included angle between the vertical pipeline 31 and the horizontal pipeline 32 is 90°, the vertical pipeline 31 is arranged radially relative to the liquid pipeline 4, and the horizontal pipeline 32 is arranged axially relative to the liquid pipeline 4. The axial direction of the liquid pipeline 4 is the liquid flow direction. By respectively arranging the gas branch 3 in the radial and axial directions of the liquid pipeline 4, and the vertical pipeline 31 and the horizontal pipeline 32 are both provided with exhaust holes 5, the contact area between the gas and the liquid is greatly increased, so that the mixing of the gas and the liquid is more uniform.

[0027] In the present application embodiment, Figure 1 As shown, multiple vertical pipelines 31 are arranged along the axial direction of the annular cavity 2; multiple vertical pipelines 31 are fixedly connected to the inner side of the annular cavity 2; multiple vertical pipelines 31 extend into the liquid pipeline 4 at different lengths and are distributed at different cross-sections of the liquid pipeline 4; output ends of multiple vertical pipelines 31 are fixedly connected to horizontal pipelines 32; multiple vertical pipelines 31 and multiple horizontal pipelines 32 can be distributed layer by layer in the liquid pipeline 4.

[0028] Exemplarily, the gas branch 3 includes a horizontal pipeline 32 and a vertical pipeline 31 , that is, a plurality of gas branches 3 are arranged along the axial direction of the annular cavity 2 , and are evenly distributed layer by layer in the liquid pipeline 4 .

[0029] In the present application embodiment, Figure 2 As shown, the gas branch 3 also includes a radial pipeline 33, the input end of the radial pipeline 33 is fixedly connected to the inner side of the annular cavity 2; the output end of the radial pipeline 33 is fixedly connected to the horizontal pipeline 32; and the radial pipeline 33 is provided with an exhaust hole 5.

[0030] Exemplarily, a plurality of radial pipelines 33 are arranged along the axial direction of the annular cavity 2, and the output ends of the plurality of radial pipelines 33 are fixedly connected to the horizontal pipeline 32. The plurality of radial pipelines 33 have different lengths and are distributed at different cross sections of the liquid pipeline 4, and the plurality of radial pipelines 33 can be distributed in the liquid pipeline 4 layer by layer.

[0031] Exemplarily, another group of radial pipes 33 is provided along the symmetric direction of the vertical pipes 31. The lengths of the two groups of radial pipes 33 are the same.

[0032] In the present application embodiment, Figure 1 , Figure 2 As shown, a plurality of first gas circuit branches 6 are arranged on the vertical pipeline 31; the input ends of the plurality of first gas circuit branches 6 are connected to the interior of the vertical pipeline 31, and the plurality of first gas circuit branches 6 are fixedly connected to the vertical pipeline 31; and the plurality of first gas circuit branches 6 are arranged with exhaust holes 5.

[0033] Exemplarily, the number of first gas circuit branches 6 on the vertical pipeline 31 is appropriately increased according to the length of the vertical pipeline 31, so that the first gas circuit branches 6 are stacked layer by layer on multiple vertical pipelines 31; the first gas circuit branches 6 are provided with exhaust holes 5, and the exhaust holes 5 are arranged along various directions of the vertical pipeline 31, so that the gas can be mixed with the liquid in various directions.

[0034] In the embodiment of the present application, multiple second gas circuit branches 7 are arranged on the horizontal pipeline 32; the input ends of the multiple second gas circuit branches 7 are connected to the interior of the horizontal pipeline 32, and the multiple second gas circuit branches 7 are fixedly connected to the horizontal pipeline 32; and the multiple second gas circuit branches 7 are arranged with exhaust holes 5.

[0035] Exemplarily, the number of second gas circuit branches 7 on the horizontal pipeline 32 is appropriately increased according to the length of the horizontal pipeline 32, so that the second gas circuit branches 7 are stacked layer by layer on multiple horizontal pipelines 32; the second gas circuit branches 7 are provided with exhaust holes 5, and the exhaust holes 5 are arranged along various directions of the horizontal pipeline 32, so that the gas can be mixed with the liquid in various directions.

[0036] In the embodiment of the present application, a plurality of third gas path branches 9 are provided on the radial pipeline 33; the input ends of the plurality of third gas path branches 9 are connected to the interior of the radial pipeline 33, and the plurality of third gas path branches 9 are fixedly connected to the radial pipeline 33; the plurality of third gas path branches 9 are provided with the exhaust holes 5.

[0037] Exemplarily, the number of third gas path branches 9 on the radial pipeline 33 is appropriately increased according to the length of the radial pipeline 33, so that the third gas path branches 9 are stacked layer by layer on multiple radial pipelines 33; the third gas path branches 9 are provided with exhaust holes 5, and the exhaust holes 5 are arranged along various directions of the radial pipeline 33, so that the gas can be mixed with the liquid in various directions.

[0038] In the embodiment of the present application, a sealing plate 8 is provided at the bottom of the gas branch 3 , and the sealing plate 8 is fixedly connected to the output end of the horizontal pipeline 32 ; the sealing plate 8 can increase the internal pressure of the gas branch 3 .

[0039] Exemplarily, a sealing plate 8 is provided at the bottom of the horizontal pipeline 32, and the sealing plate 8 can increase the pressure inside the vertical pipeline 31, the horizontal pipeline 32 and the radial pipeline 33, which is conducive to the discharge of gas from the exhaust hole 5, thereby making the gas-liquid mixing more uniform.

[0040] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0041] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A gas-liquid mixing device, characterized in that: It comprises a main gas circuit (1), an annular cavity (2), a gas branch circuit (3) and a liquid pipeline (4); The main gas path (1) is fixedly connected to the annular cavity (2), and gas can be input into the annular cavity (2) through the main gas path (1); The input end of the gas branch (3) is fixedly connected to the inner side of the annular cavity (2), and the annular cavity (2) is arranged on the outer side of the liquid pipeline (4); the gas branch (3) extends into the liquid pipeline (4); The gas branch (3) comprises a vertical pipeline (31) and a horizontal pipeline (32); The output end of the vertical pipeline (31) is fixedly connected to the input end of the horizontal pipeline (32); The input end of the vertical pipeline (31) is fixedly connected to the inner side of the annular cavity (2); the vertical pipeline (31) extends into the liquid pipeline (4); The horizontal pipeline (32) and the vertical pipeline (31) are both provided with exhaust holes (5).

2. A gas-liquid mixing device according to claim 1, characterized in that: The included angle between the vertical pipeline (31) and the horizontal pipeline (32) is in the range of 60° to 120°.

3. A gas-liquid mixing device according to claim 1, characterized in that: The vertical pipelines (31) are arranged in plurality along the axial direction of the annular cavity (2); The plurality of vertical pipelines (31) are all fixedly connected to the inner side of the annular cavity (2); The vertical pipelines (31) extend into the liquid pipeline (4) to different lengths and are distributed at different cross sections of the liquid pipeline (4); The output ends of the plurality of vertical pipelines (31) are all fixedly connected to the horizontal pipeline (32); the plurality of vertical pipelines (31) and the plurality of horizontal pipelines (32) can be distributed layer by layer in the liquid pipeline (4).

4. A gas-liquid mixing device according to claim 1, characterized in that: The gas branch (3) further comprises a radial pipeline (33), the input end of the radial pipeline (33) being fixedly connected to the inner side of the annular cavity (2); The output end of the radial pipeline (33) is fixedly connected to the horizontal pipeline (32); and the radial pipeline (33) is provided with an exhaust hole (5).

5. A gas-liquid mixing device according to claim 1, characterized in that: The vertical pipeline (31) is provided with a plurality of first gas path branches (6); The input ends of the plurality of first gas path branches (6) are in communication with the interior of the vertical pipeline (31), and the plurality of first gas path branches (6) are all fixedly connected to the vertical pipeline (31); The exhaust holes (5) are each provided on a plurality of the first gas path branches (6).

6. A gas-liquid mixing device according to claim 1, characterized in that: The horizontal pipeline (32) is provided with a plurality of second gas path branches (7); The input ends of the plurality of second gas path branches (7) are in communication with the interior of the horizontal pipeline (32), and the plurality of second gas path branches (7) are all fixedly connected to the horizontal pipeline (32); The plurality of second gas path branches (7) are each provided with the exhaust holes (5).

7. A gas-liquid mixing device according to claim 4, characterized in that: The radial pipeline (33) is provided with a plurality of third gas path branches (9); The input ends of the plurality of third gas path branches (9) are in communication with the interior of the radial pipeline (33), and the plurality of third gas path branches (9) are fixedly connected to the radial pipeline (33); The exhaust holes (5) are each provided on a plurality of the third gas path branches (9).

8. A gas-liquid mixing device according to claim 1, characterized in that: A sealing plate (8) is provided at the bottom of the gas branch circuit (3), and the sealing plate (8) is fixedly connected to the output end of the horizontal pipeline (32); the sealing plate (8) can increase the internal pressure of the gas branch circuit (3).

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