Viscosity measuring device for gas-liquid two-phase flow

Abstract

The utility model discloses a gas-liquid two-phase flow viscosity measuring device, relates to the technical field of flow viscosity measurement, and solves the technical problem that the existing gas-liquid two-phase flow circulating device interferes with the measuring process, so that the accuracy of a viscosity measuring result is low. The gas-liquid two-phase flow viscosity measuring device comprises a base, a torque sensor, a bracket, a double-cavity container, a rotating component, a first pipeline and a second pipeline, wherein the torque sensor and the bracket are arranged on the base, and the double-cavity container is arranged on the torque sensor through the bottom surface; the rotating assembly is arranged at the top of the double-cavity container through a support extending to the top of the double-cavity container, and any rotating part of the rotating assembly extends into the second annular cavity from the top of the double-cavity container; the first pipeline and the second pipeline penetrate through the bottom surface of the double-cavity container and extend into the first annular cavity from the top of the double-cavity container; a first through hole and a second through hole are formed in the separation face of the first annular cavity and the second annular cavity.

Description

A gas-liquid two-phase flow viscosity measuring device Technical Field

[0001] This utility model relates to the field of fluid viscosity measurement technology, and more specifically, to a gas-liquid two-phase flow viscosity measurement device. Background Technology

[0002] Two-phase flow (SPF) is a multiphase flow containing both gas and liquid phases within the same space. Compared to single-phase flow consisting of pure liquid or pure gas, SPF has significantly enhanced compressibility due to the intermingling of the two media, resulting in a substantial reduction in the propagation speed of sound and disturbances. Under specific conditions, the velocity of sound in SPF can drop as low as 25 m / s, far lower than that of a single-phase fluid. This characteristic makes it a promising candidate for applications in fields such as supersonic simulation, potentially enabling the realization of supersonic effects at relatively low flow velocities.

[0003] In supersonic simulation applications, the viscosity of gas-liquid two-phase flow is an important physical parameter. Existing fluid viscosity measurement systems do not have a fluid circulation device. For gas-liquid two-phase flow, long-term measurement will disrupt the gas-liquid mixing state, resulting in distorted viscosity measurement results that cannot meet the actual measurement requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a gas-liquid two-phase flow viscosity measuring device to solve the technical problem that existing gas-liquid two-phase flow circulation devices interfere with the measurement process, resulting in low accuracy of viscosity measurement results. Therefore, this invention achieves this through the following solution.

[0005] This utility model discloses a gas-liquid two-phase flow viscosity measuring device, comprising:

[0006] A base, and a torque sensor and a bracket mounted on the base;

[0007] A dual-cavity container has a bottom surface and a first annular cavity and a second annular cavity formed on the bottom surface, the dual-cavity container being disposed on the torque sensor via the bottom surface; the second annular cavity is located away from the central axis of the dual-cavity container relative to the first annular cavity;

[0008] A rotating assembly is mounted on the top of the dual-cavity container via a bracket extending to the top of the dual-cavity container, and any rotating part of the rotating assembly extends from the top of the dual-cavity container into the second annular cavity;

[0009] The first and second pipes pass through the bottom surface of the dual-cavity container and extend from the top of the dual-cavity container into the first annular cavity;

[0010] The first annular cavity and the second annular cavity are provided with a first through hole and a second through hole on the dividing surface. The first through hole is opened near the bottom surface, and the second through hole is opened away from the bottom surface. The first opening end of the second pipe extending into the first annular cavity is flush with the lowest point of the second through hole.

[0011] Compared with the prior art, the gas-liquid two-phase flow viscosity measuring device of this utility model is used to measure the viscosity of gas-liquid two-phase flow. In the device, the base supports the entire device, the dual-cavity container contains the fluid to be measured, the rotating assembly applies shear force to the fluid, and the first pipe delivers the fluid to be measured into the dual-cavity container. After the fluid is delivered into the first annular cavity, it flows into the second annular cavity through the first through-hole. When the height of the fluid to be measured in the second annular cavity reaches the second through-hole, the excess fluid flows back into the first annular cavity and is output through the second pipe, thereby maintaining the fluid to be measured at a certain height in the second annular cavity. Further, the through-hole... The fluid to be measured (specifically, a gas-liquid two-phase flow) is introduced into the first annular cavity of the dual-cavity container through the first pipe. The fluid then enters the second annular cavity through the first through-hole, and after reaching the lowest point of the second through-hole within the second annular cavity, the liquid level is maintained at a certain height. Further, the rotating assembly is activated. The rotating part, extending from the top of the dual-cavity container into the second annular cavity, drives the fluid to be measured. Due to the viscosity of the fluid, the rotating part applies a shearing force to the fluid in the second annular cavity. After receiving the corresponding shear reaction force, the dual-cavity container achieves torque balance with the torque sensor connected to its bottom. Further, the torque is measured by the torque sensor. This allows for the indirect measurement of the shear force applied to the fluid being measured; after satisfying the aforementioned conditions, the viscosity coefficient of the fluid being measured can be obtained by the following formula: ,in, This represents the viscosity coefficient of the fluid being measured. This indicates the torque measured by the torque sensor. This indicates the distance from the rotating part of the rotating assembly in the second annular cavity to the inner surface of the second annular cavity away from its central axis. This represents the radius of the second annular cavity. This represents the shear rate of the fluid being measured. This represents the shear area of ​​the fluid being measured, i.e., the contact area between the fluid being measured and the side wall of the rotating part of the rotating assembly. The above-mentioned technical solution of this invention solves the technical problem of low accuracy in viscosity measurement results caused by interference in the measurement process in existing gas-liquid two-phase flow circulation devices.

[0012] Furthermore, in the gas-liquid two-phase flow viscosity measuring device of this utility model, the dual-cavity container further includes a first annular cylinder, a second annular cylinder, and a third annular cylinder;

[0013] The inner diameter of the third annular cylinder is larger than the outer diameter of the second annular cylinder, and the inner diameter of the second annular cylinder is larger than the outer diameter of the first annular cylinder;

[0014] The first annular cylinder, the second annular cylinder, and the third annular cylinder are sequentially sleeved on the bottom surface, forming a first annular cavity between the first annular cylinder and the second annular cylinder, and a second annular cavity between the second annular cylinder and the third annular cylinder.

[0015] Furthermore, in the gas-liquid two-phase flow viscosity measuring device of this invention, the separating surface between the first annular cavity and the second annular cavity is the second annular cylinder.

[0016] Furthermore, in the gas-liquid two-phase flow viscosity measuring device of this utility model, the second annular cylinder is provided with a plurality of first through holes at equal intervals and at equal heights on the side near the bottom surface.

[0017] Furthermore, the gas-liquid two-phase flow viscosity measuring device of this utility model also includes a first connecting plate;

[0018] The bottom surface has a third through hole, the diameter of which is smaller than the outer diameter of the first annular cylinder; the first connecting plate is disposed on the inner surface of the first annular cylinder, and the dual-cavity container is connected to the torque sensor through the first connecting plate.

[0019] Furthermore, in the gas-liquid two-phase flow viscosity measuring device of this utility model, the central axes of the third through hole, the first annular cylinder, the second annular cylinder and the third annular cylinder are on the same straight line;

[0020] A fourth through hole is symmetrically provided on the first connecting plate along the central axis of the first annular cylinder;

[0021] The first and second pipes respectively pass through the symmetrically arranged fourth through holes.

[0022] Furthermore, in the gas-liquid two-phase flow viscosity measuring device of this utility model, the rotating component includes a power rotating mechanism, a second connecting plate, and a fourth annular cylinder;

[0023] The end of the rotating shaft of the power rotating mechanism is connected to the second connecting plate, and the fourth annular cylinder is provided on the side of the second connecting plate away from the main body of the power rotating mechanism.

[0024] The fourth annular cylinder extends from the top of the dual-cavity container into the second annular cavity.

[0025] Furthermore, the gas-liquid two-phase flow viscosity measuring device of this utility model also includes a gas storage tank and a liquid storage tank;

[0026] The openings of the gas storage tank and the liquid storage tank are connected to the first pipeline;

[0027] A first circulation pump is installed between the opening of the gas storage tank and / or liquid storage tank and the first pipeline.

[0028] Furthermore, in the gas-liquid two-phase flow viscosity measuring device of this utility model, the second open end of the second pipe is connected to a third pipe and a fourth pipe;

[0029] The third pipeline extends to and connects to the gas storage tank;

[0030] The fourth pipe extends to the liquid storage tank and is connected to the liquid storage tank.

[0031] Furthermore, in the gas-liquid two-phase flow viscosity measuring device of this utility model, the base is provided with multiple elastic supports on the side away from the torque sensor. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0033] Figure 1 is a schematic diagram of the overall structure of the gas-liquid two-phase flow viscosity measuring device of this utility model;

[0034] Figure 2 is a partial structural schematic diagram of the gas-liquid two-phase flow viscosity measuring device of this utility model;

[0035] Figure 3 is a schematic diagram of the structure of a dual-chamber container for measuring the viscosity of gas-liquid two-phase flow according to this utility model;

[0036] Figure 4 is a schematic diagram of another display dual-chamber container of the gas-liquid two-phase flow viscosity measuring device of this utility model;

[0037] Figure 5 is a top view of the dual-chamber container in the gas-liquid two-phase flow viscosity measuring device of this utility model;

[0038] Figure 6 is a bottom view of the dual-chamber container in the gas-liquid two-phase flow viscosity measuring device of this utility model;

[0039] Figure 7 is a schematic diagram of the rotating component in the gas-liquid two-phase flow viscosity measuring device of this utility model;

[0040] Figure label:

[0041] 1. Base; 101. Elastic support; 2. Torque sensor; 3. Bracket; 4. Dual-chamber container; 401. Bottom surface; 402. First annular cavity; 403. Second annular cavity; 404. First annular cylinder; 405. Second annular cylinder; 406. Third annular cylinder; 5. Rotating assembly; 501. Power rotation mechanism; 502. Second connecting plate; 503. Fourth annular cylinder; 6. First pipe; 7. Second pipe; 8. First connecting plate; 801. Fourth through hole; 9. Gas storage tank; 10. Liquid storage tank. Detailed Implementation

[0042] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0043] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0045] In supersonic simulation applications, the viscosity of gas-liquid two-phase flow is an important physical parameter. Existing fluid viscosity measurement processes mainly involve directly immersing the rotor of a rotational viscometer into the fluid being measured. For gas-liquid two-phase flow, this will destroy the bubble or droplet structure, resulting in low accuracy of viscosity measurement results, which cannot meet the actual measurement requirements.

[0046] To solve the above-mentioned technical problems, please refer to Figures 1 to 7. This utility model provides a gas-liquid two-phase flow viscosity measuring device, which includes a base 1, a torque sensor 2, a support 3, a dual-chamber container 4, a rotating assembly 5, a first pipe 6, and a second pipe 7; wherein:

[0047] Torque sensor 2 and bracket 3 are mounted on base 1. Dual-cavity container 4 has bottom surface 401 and a first annular cavity 402 and a second annular cavity 403 formed on bottom surface 401. Dual-cavity container 4 is mounted on torque sensor 2 via bottom surface 401. The second annular cavity 403 is away from the central axis of dual-cavity container 4 relative to the first annular cavity 402. Rotating assembly 5 is mounted on top of dual-cavity container 4 via bracket 3 extending to the top of dual-cavity container 4. Any rotating part of rotating assembly 5 extends from the top of dual-cavity container 4 into the second annular cavity 403. First pipe 6 and second pipe 7 pass through bottom surface 401 of dual-cavity container 4 and extend from the top of dual-cavity container 4 into the first annular cavity 402. The dividing surface of the first annular cavity 402 and the second annular cavity 403 is provided with a first through hole and a second through hole. The first through hole is opened near bottom surface 401 and the second through hole is opened away from bottom surface 401. The first opening end of the second pipe 7 extending into the first annular cavity 402 is flush with the lowest point of the second through hole.

[0048] Specific implementation process: The above-mentioned gas-liquid two-phase flow viscosity measuring device is used to measure the viscosity of gas-liquid two-phase flow; specifically, the fluid to be measured (specifically gas-liquid two-phase flow) is input into the first annular cavity 402 of the dual-cavity container 4 through the first pipe 6. The fluid to be measured enters the second annular cavity 403 through the first through hole, and after reaching the lowest point of the second through hole in the second annular cavity 403, the liquid level is maintained at a certain height; further, the rotating component 5 is activated, and the rotating part extending from the top of the dual-cavity container 4 into the second annular cavity 403 drives the fluid to be measured. Due to the viscosity characteristics of the fluid to be measured, the rotating part will apply a shearing action to the fluid to be measured in the second annular cavity 403. After the dual-cavity container 4 is subjected to the corresponding shear reaction force, it will reach torque balance with the torque sensor 2 connected to its bottom; further, the torque measured by the torque sensor 2 is... This allows for the indirect measurement of the shear force applied to the fluid being measured; after satisfying the aforementioned conditions, the viscosity coefficient of the fluid being measured can be obtained by the following formula: ,in, This represents the viscosity coefficient of the fluid being measured. This indicates the torque measured by torque sensor 2. This indicates the distance from the rotating part of the rotating assembly 5 in the second annular cavity 403 to the inner surface of the second annular cavity 403 away from its central axis. This represents the radius of the second annular cavity 403. This represents the shear rate of the fluid being measured. This represents the shear area of ​​the fluid being measured, which is the contact area between the fluid being measured and the side wall of the rotating part of the rotating assembly.

[0049] Based on the structure and specific implementation process of the above-described gas-liquid two-phase flow viscosity measuring device, we can conclude that:

[0050] This utility model discloses a gas-liquid two-phase flow viscosity measuring device for measuring the viscosity of gas-liquid two-phase flow. In the device, a base 1 supports the entire device, a dual-cavity container 4 contains the fluid to be measured, a rotating assembly 5 applies rotational force to the fluid, and a first pipe 6 delivers the fluid to be measured into the dual-cavity container 4. After the fluid is delivered into the first annular cavity 402, it flows through a first through-hole to the second annular cavity 403. When the height of the fluid in the second annular cavity 403 reaches the second through-hole, excess fluid flows back to the first annular cavity 402 and is output through the second pipe 7, thus maintaining the fluid at a certain height within the second annular cavity 403. Further, through the first pipe... The fluid to be measured (specifically, a gas-liquid two-phase flow) is input into the first annular cavity 402 of the dual-cavity container 4 via channel 6. The fluid to be measured enters the second annular cavity 403 through the first through-hole, and after reaching the lowest point of the second through-hole in the second annular cavity 403, the liquid level is maintained at a certain height. Further, the rotating component 5 is activated, and the rotating part extending from the top of the dual-cavity container 4 into the second annular cavity 403 drives the fluid to be measured. Due to the viscosity characteristics of the fluid to be measured, the rotating part applies a shearing action to the fluid to be measured in the second annular cavity 403. After the dual-cavity container 4 is subjected to the corresponding shearing reaction force, it reaches torque balance with the torque sensor 2 connected to its bottom. Further, the torque measured by the torque sensor 2 is... This allows for the indirect measurement of the shear force applied to the fluid being measured; after satisfying the aforementioned conditions, the viscosity coefficient of the fluid being measured can be obtained by the following formula: ,in, This represents the viscosity coefficient of the fluid being measured. This indicates the torque measured by torque sensor 2. This indicates the distance from the rotating part of the rotating assembly 5 in the second annular cavity 403 to the inner surface of the second annular cavity 403 away from its central axis. This represents the radius of the second annular cavity 403. This represents the shear rate of the fluid being measured. This represents the shear area of ​​the fluid being measured, i.e., the contact area between the fluid being measured and the side wall of the rotating part of the rotating assembly. The above-mentioned technical solution of this invention solves the technical problem of low accuracy in viscosity measurement results caused by interference in the measurement process of a gas-liquid two-phase flow circulation device.

[0051] Please refer to Figures 1 to 6. As one possible implementation, in the gas-liquid two-phase flow viscosity measuring device of this utility model, the dual-cavity container 4 further includes a first annular cylinder 404, a second annular cylinder 405, and a third annular cylinder 406; the inner diameter of the third annular cylinder 406 is larger than the outer diameter of the second annular cylinder 405, and the inner diameter of the second annular cylinder 405 is larger than the outer diameter of the first annular cylinder 404; the first annular cylinder 404, the second annular cylinder 405, and the third annular cylinder 406 are sequentially sleeved and disposed on the bottom surface 401, a first annular cavity 402 is formed between the first annular cylinder 404 and the second annular cylinder 405, and a second annular cavity 403 is formed between the second annular cylinder 405 and the third annular cylinder 406. In the gas-liquid two-phase flow viscosity measuring device of this utility model, by setting a first annular cylinder 404, a second annular cylinder 405 and a third annular cylinder 406, a first annular cavity 402 and a second annular cavity 403 can be formed in the dual-cavity container 4.

[0052] Please refer to Figures 1 to 6. In one possible implementation, in the gas-liquid two-phase flow viscosity measuring device of this invention, the dividing surface between the first annular cavity 402 and the second annular cavity 403 is a second annular cylinder 405. Further, the second annular cylinder 405 has a plurality of first through holes at equal intervals and at the same height on the side near the bottom surface 401. With the above technical solution, the second annular cylinder 405 corresponds to the dividing surface between the first annular cavity 402 and the second annular cavity 403, and the arrangement of the first and second through holes on the second annular cylinder 405 is consistent with the arrangement on the dividing surface.

[0053] Referring to Figures 5 and 6, as one possible implementation, the gas-liquid two-phase flow viscosity measuring device of this invention further includes a first connecting plate 8; a third through hole is provided on the bottom surface 401, the diameter of which is smaller than the outer diameter of the first annular cylinder 404; the first connecting plate 8 is disposed on the inner surface of the first annular cylinder 404, and the dual-cavity container 4 is connected to the torque sensor 2 through the first connecting plate 8. With the above technical solution, the shear force on the dual-cavity container 4 can be transmitted to the torque sensor 2 through the first connecting plate 8, and the first pipe 6 and the second pipe 7 can extend through the first connecting plate 8 into the first annular cavity 402 of the dual-cavity container 4.

[0054] Please refer to Figures 1 to 6. In one possible implementation, in the gas-liquid two-phase flow viscosity measuring device of this invention, the central axes of the third through hole, the first annular cylinder 404, the second annular cylinder 405, and the third annular cylinder 406 are on the same straight line. A fourth through hole 801 is symmetrically opened on the first connecting plate 8 along the central axis of the first annular cylinder 404. The first pipe 6 and the second pipe 7 respectively pass through the symmetrically arranged fourth through holes 801. By adopting the above technical solution, aligning the central axes of the third through hole, the first annular cylinder 404, the second annular cylinder 405, and the third annular cylinder 406 on the same straight line can significantly improve the overall stability of the viscosity measuring device; the symmetrically opened fourth through holes 801 on the first connecting plate 8 can provide passageways for the first pipe 6 and the second pipe 7, respectively.

[0055] Please refer to Figures 1 to 7. In one possible implementation, the rotating component 5 of the gas-liquid two-phase flow viscosity measuring device of this invention includes a power rotating mechanism 501, a second connecting plate 502, and a fourth annular cylinder 503. The end of the rotating shaft of the power rotating mechanism 501 is connected to the second connecting plate 502, and the fourth annular cylinder 503 is disposed on the side of the second connecting plate 502 away from the main body of the power rotating mechanism 501. The fourth annular cylinder 503 extends from the top of the dual-cavity container 4 into the second annular cavity 403. With the above technical solution, the fourth annular cylinder 503 can extend into the second annular cavity 403 of the dual-cavity container 4. Furthermore, when the power rotating mechanism 501 is activated, its rotating shaft drives the fourth annular cylinder 503 to rotate at high speed within the second annular cavity 403, and it comes into contact with the fluid to be measured. This applies a shearing action to the fluid in the second annular cavity 403. After the dual-cavity container 4 receives the corresponding shear reaction force, it achieves torque balance with the torque sensor 2 connected to its bottom. The specific viscosity measurement process is the same as described above.

[0056] Please refer to Figure 1, and Figures 3 to 6. As one possible implementation, the gas-liquid two-phase flow viscosity measuring device of this utility model further includes a gas storage tank 9 and a liquid storage tank 10; the openings of the gas storage tank 9 and the liquid storage tank 10 are connected to the first pipeline 6; a first circulation pump is provided between the opening of the gas storage tank 9 and / or the liquid storage tank 10 and the first pipeline 6. With the above technical solution, the gas storage tank 9 and the liquid storage tank 10 are used to provide the gas phase and liquid phase of the gas-liquid two-phase flow, respectively. After mixing the gas phase and liquid phase output from the gas storage tank 9 and the liquid storage tank 10, they can be transported through the first pipeline 6 to the inside of the first annular cavity 402, and then flow into the first annular cavity 402 through the first through hole. The first circulation pump can be connected to a power source via a wire. After starting the first circulation pump, the first circulation pump can provide transport power for the gas-liquid two-phase flow in the first pipeline 6.

[0057] In one possible implementation, in the gas-liquid two-phase flow viscosity measuring device of this invention, the second open end of the second pipe 7 is connected to a third pipe and a fourth pipe; the third pipe extends to and communicates with the gas storage tank 9; the fourth pipe extends to and communicates with the liquid storage tank 10. With the above technical solution, after gas-liquid two-phase flow output from the second pipe 7 undergoes gas-liquid two-phase separation, the gas phase can flow back to the gas storage tank 9 through the third pipe, and the liquid phase can flow back to the liquid storage tank 10 through the fourth pipe; the fluids in both the third and fourth pipes can be powered by a power mechanism (liquid can be powered by a power pump, and gas can be powered by a fan).

[0058] As one possible implementation, in the gas-liquid two-phase flow viscosity measuring device of this utility model, multiple elastic supports 101 are provided on the side of the base 1 away from the torque sensor 2 to further improve the stability of the device during the measurement process.

[0059] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0060] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for measuring the viscosity of a gas-liquid two-phase flow, characterized in that, include: A base, and a torque sensor and a bracket mounted on the base; A dual-cavity container has a bottom surface and a first annular cavity and a second annular cavity formed on the bottom surface, the dual-cavity container being disposed on the torque sensor via the bottom surface; The second annular cavity is located away from the central axis of the dual-cavity container relative to the first annular cavity; A rotating assembly is mounted on the top of the dual-cavity container via a bracket extending to the top of the dual-cavity container, and any rotating part of the rotating assembly extends from the top of the dual-cavity container into the second annular cavity; A first pipe and a second pipe extend from the top of the double-cavity container through the bottom surface of the double-cavity container into the first annular cavity; a first through hole and a second through hole are provided on the dividing surface of the first annular cavity and the second annular cavity, the first through hole is opened close to the bottom surface and the second through hole is opened away from the bottom surface, and the first opening end of the second pipe extending into the first annular cavity is flush with the lowest point of the second through hole.

2. The gas-liquid two-phase flow viscosity measuring device according to claim 1, characterized in that, The dual-cavity container further includes a first annular cylinder, a second annular cylinder, and a third annular cylinder; the inner diameter of the third annular cylinder is larger than the outer diameter of the second annular cylinder, and the inner diameter of the second annular cylinder is larger than the outer diameter of the first annular cylinder; the first annular cylinder, the second annular cylinder, and the third annular cylinder are sequentially sleeved on the bottom surface, forming a first annular cavity between the first annular cylinder and the second annular cylinder, and a second annular cavity between the second annular cylinder and the third annular cylinder.

3. The gas-liquid two-phase flow viscosity measuring device according to claim 2, characterized in that, The dividing surface between the first annular cavity and the second annular cavity is the second annular cylinder.

4. The gas-liquid two-phase flow viscosity measuring device according to claim 3, characterized in that, The second annular cylinder has multiple first through holes at equal intervals and at the same height on the side near the bottom surface.

5. The gas-liquid two-phase flow viscosity measuring device according to claim 4, characterized in that, It also includes a first connecting plate; the bottom surface has a third through hole, the diameter of which is smaller than the outer diameter of the first annular cylinder; the first connecting plate is disposed on the inner surface of the first annular cylinder, and the dual-cavity container is connected to the torque sensor through the first connecting plate.

6. The gas-liquid two-phase flow viscosity measuring device according to claim 5, characterized in that, The central axes of the third through hole, the first annular cylinder, the second annular cylinder, and the third annular cylinder are on the same straight line; the first connecting plate is symmetrically provided with a fourth through hole along the central axis of the first annular cylinder; the first pipe and the second pipe respectively pass through the symmetrically provided fourth through holes.

7. The gas-liquid two-phase flow viscosity measuring device according to claim 6, characterized in that, The rotating assembly includes a power rotating mechanism, a second connecting plate, and a fourth annular cylinder; the end of the rotating shaft of the power rotating mechanism is connected to the second connecting plate, and the fourth annular cylinder is disposed on the side of the second connecting plate away from the main body of the power rotating mechanism; the fourth annular cylinder extends from the top of the dual-cavity container into the second annular cavity.

8. The gas-liquid two-phase flow viscosity measuring device according to claim 7, characterized in that, It also includes a gas storage tank and a liquid storage tank; the openings of the gas storage tank and the liquid storage tank are connected to the first pipeline; a first circulation pump is provided between the opening of the gas storage tank and / or the liquid storage tank and the first pipeline.

9. The gas-liquid two-phase flow viscosity measuring device according to claim 8, characterized in that, The second opening end of the second pipe is connected to a third pipe and a fourth pipe; the third pipe extends to the gas storage tank and communicates with the gas storage tank; the fourth pipe extends to the liquid storage tank and communicates with the liquid storage tank.

10. The gas-liquid two-phase flow viscosity measuring device according to claim 1 or 9, characterized in that, The base is provided with multiple elastic supports on the side away from the torque sensor.

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