Magnus air regulating valve

Abstract

This application relates to a Magnus-type airflow regulating valve, specifically a flow control valve. It includes an inlet duct, at least two branched guide pipes connected to the end of the inlet duct, a rotating component rotatably mounted within the inlet duct, and a driver. The driver in this application drives the rotating component to rotate at a high speed in a specific direction. The rotating component causes the air adhering to its outer periphery to rotate along with it, resulting in different airflow velocities on both sides of the rotating component. According to Bernoulli's principle, the airflow behind the rotating component is directed to the side with the higher airflow velocity and exits through the branched pipe on that side. Since the regulating capacity of this airflow regulating valve is achieved by the rotation direction and speed of the rotating component, the current operating state of the airflow regulating valve can be identified through driver status feedback, improving the problem of inconvenient monitoring of the operating state of the airflow regulating valve. Because there is no resistance mechanism, the system flow characteristics outside the branch where the airflow regulating valve is located remain essentially unchanged, and it will not affect the airflow of other unrelated branches.

Description

Technical Field

[0001] This application relates to the technical field of flow control valves, and in particular to Magnus air volume control valves. Background Technology

[0002] Currently, the most widely used airflow regulating valves mainly include two types: plate-type airflow regulating valves and venturi airflow regulating valves. Both plate-type and venturi airflow regulating valves adjust flow by increasing local resistance in the pipeline to change the flow characteristics of the pipeline system, thereby altering the flow rate of a specific branch.

[0003] Because the operation of valve-type and venturi-type air volume control valves alters the overall system's resistance balance, airflow changes occur at all air outlets in the system when either valve-type or venturi-type air volume control valves actuate. Under these circumstances, balancing the air supply system is extremely difficult. Furthermore, the actuating components of these air volume control valves are located inside the ductwork, and their operating state is determined by their current position, which cannot be directly observed externally. It is usually indicated indirectly through mechanical interlocks. Therefore, the operating status of these air volume control valves is difficult to accurately reflect, requiring time-consuming manual pre-setting and adjustment. Summary of the Invention

[0004] To address the issues of inconvenient monitoring of the working state of air volume regulating valves and the impact of air volume regulation on the air volume of other branches, this application provides a Magnus air volume regulating valve.

[0005] The Magnus air volume regulating valve provided in this application adopts the following technical solution: The Magnus airflow regulating valve includes an air inlet pipe, at least two branched guide pipes connected to the air outlet end of the air inlet pipe, a rotating component rotatably installed in the air inlet pipe, and a driver for driving the rotating component to rotate. The at least two branched guide pipes are arranged in the same plane, and the plane containing the axes of the at least two branched guide pipes is set as the guide surface. The rotation axis of the rotating component forms an angle with the guide surface.

[0006] By adopting the above technical solution, the driver drives the rotating component to rotate at high speed in a directional manner. The rotating component causes the air in the attached layer on its outer periphery to rotate along with the rotating component, resulting in different airflow velocities on both sides of the rotating component. According to Bernoulli's principle, the gas pressure on the side with higher flow velocity will be lower. Therefore, the airflow behind the rotating component will be biased towards the side with higher airflow velocity. As a result, the dynamic pressure on the side with higher flow velocity behind the active component will be increased, and most of the airflow will be introduced to this side and flow out through the branch pipe on this side.

[0007] Since the airflow regulating valve's regulating capacity is achieved through the rotation direction and speed of the rotating component, the current operating status of the airflow regulating valve can be identified through actuator status feedback. This improves upon the problem of inconvenient monitoring of the airflow regulating valve's operating status, which is highly advantageous for systems requiring continuous monitoring of the system's operating conditions. Because there is no resistance mechanism, the system flow characteristics outside the branch where the airflow regulating valve is located remain essentially unchanged. Therefore, the airflow distribution of two to three branches can be controlled independently without affecting the airflow of other unrelated branches.

[0008] Optionally, the rotation axis of the rotating component is perpendicular to the guide surface, and the rotation axis of the rotating component intersects with the axis of the air inlet pipe.

[0009] By adopting the above technical solution, by setting the axis of the rotating component to be perpendicular to the guide surface, the side with high flow velocity and the side with low flow velocity of the rotating component are directly opposite at least two bifurcated guide pipes. The rotation axis of the rotating component intersects with the axis of the air inlet pipe, so that the rotational kinetic energy of the rotating component has the highest air guiding efficiency, which facilitates the introduction of gas from the side with low flow velocity of the rotating component into the side with high flow velocity, and makes most of the air flow out of the bifurcated pipe on the side with high flow velocity.

[0010] Optionally, the rotating component is a cylindrical core tube.

[0011] By adopting the above technical solution, the cylindrical core tube has a large outer wall surface area, which facilitates the guidance of more air from the low velocity side to the high velocity side during the core tube's rotation.

[0012] Optionally, the driver is a speed-regulating servo motor.

[0013] By adopting the above technical solution, and by setting the driver as a speed-regulating servo motor, the speed-regulating servo motor can easily adjust its own rotation direction and rotation speed. On the one hand, it realizes the forward and reverse rotation control of the rotating part, realizing the reversal of the low-velocity side and the high-velocity side during air circulation; on the other hand, it realizes the rotation speed control of the rotating part, realizing the amount of air guided by the rotating part during air circulation, and realizing the adjustment of the air flow speed on both sides of the rotating part.

[0014] Optionally, the outer wall of the rotating component is detachably fitted with a friction sleeve, and the surface of the friction sleeve is provided with friction texture.

[0015] By adopting the above technical solution, by setting a friction sleeve and setting friction patterns on the surface of the friction sleeve, the outer wall area of ​​the active component is increased by the friction sleeve, and the friction patterns increase the surface friction coefficient of the rotating component. The friction sleeve and the friction patterns work together to facilitate the formation of a larger volume of attached air around the outside of the rotating component. Furthermore, by replacing the friction sleeve with different friction patterns, the friction coefficient of the outer wall of the rotating component can be adjusted, thereby changing the influence of the rotating component on airflow.

[0016] Optionally, the output shaft end of the driver is connected to a gearbox, the output shaft of the gearbox is connected to the rotating component, and the gearbox is fixedly mounted on the air inlet pipe.

[0017] By adopting the above technical solution and setting a gearbox, the output rotational power of the driver is changed, thereby enabling a wider range of speed adjustment of the speed output by the driver to the rotating parts, improving the speed adjustment range of the rotating parts, and making it easier for the rotating parts to adapt to different air volume regulating valve application scenarios.

[0018] Optionally, a pipeline flow meter is fixedly installed at the air outlet of the bifurcated guide pipe.

[0019] By adopting the above technical solution, and by fixing a pipe flow meter at the end of the bifurcation guide pipe, the pipe flow meter facilitates the monitoring and measurement of the air flow rate exiting the bifurcation guide pipe.

[0020] Optionally, a connecting flange is fixedly installed at the end of the air inlet pipe away from the bifurcation guide pipe.

[0021] By adopting the above technical solution, a connecting flange is fixedly installed at the end of the air inlet pipe, which facilitates the connection between the air inlet pipe and the air supply pipe.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The actuator drives the rotating component to rotate at high speed in a specific direction. The rotating component causes the air in its outer periphery to rotate along with it, resulting in different airflow velocities on both sides of the rotating component. According to Bernoulli's principle, the gas pressure on the side with higher velocity will be lower. Therefore, the airflow behind the rotating component will be biased towards the side with higher airflow velocity, thus increasing the dynamic pressure on the side with higher velocity behind the actuator. Most of the airflow will be directed to this side and flow out through the branch pipe on that side. Since the regulating capacity of this airflow regulating valve is achieved by the rotation direction and speed of the rotating component, the current working status of the airflow regulating valve can be identified through the status feedback of the actuator. This improves the problem of the airflow regulating valve's working status being difficult to monitor, which is very beneficial for systems that require full-process monitoring of the system's operating status. Since there is no resistance mechanism, the system flow characteristics outside the branch where the airflow regulating valve is located remain basically unchanged. Therefore, the airflow distribution of two to three branches can be controlled independently without affecting the airflow of other unrelated branches. 2. By setting the rotating component as a cylindrical core tube, the cylindrical core tube has a large outer wall surface area, which facilitates the guidance of more air from the low velocity side to the high velocity side during one rotation of the core tube. 3. By setting the driver as a speed-regulating servo motor, the speed-regulating servo motor can easily adjust its own rotation direction and rotation speed. On the one hand, it can realize the forward and reverse rotation control of the rotating parts, and realize the reversal of the low-velocity side and the high-velocity side during the air circulation process. On the other hand, it can realize the rotation speed control of the rotating parts, and realize the amount of air guided by the rotating parts during the air circulation process, and realize the air flow speed on both sides of the rotating parts. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the regulating valve in the unregulated state of Embodiment 1 of this application.

[0024] Figure 2 This is a schematic diagram of the regulating valve's regulating state in Embodiment 1 of this application.

[0025] Figure 3 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0026] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Inlet pipe; 2. Branching guide pipe; 3. Rotating component; 4. Driver; 5. Friction sleeve; 6. Friction pattern; 7. Gearbox; 8. Pipe flow meter; 9. Connecting flange. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] This application discloses a Magnus air volume regulating valve.

[0030] Example 1: Reference Figure 1 , Figure 2 and Figure 3 The Magnus air volume regulating valve includes an air inlet pipe 1, at least two branched guide pipes 2 welded to the end of the air inlet pipe 1, a rotating component 3 rotatably mounted in the air inlet pipe 1 via bearings, and a driver 4 that is driven by the rotating component 3 via a coupling.

[0031] Reference Figure 1 and Figure 2 The driver 4 drives the rotating component 3 to rotate at high speed in a directional manner. The rotating component 3 causes the air attached to its outer periphery to rotate along with it, resulting in different airflow velocities on both sides of the rotating component 3. According to Bernoulli's principle, the gas pressure on the side with higher flow velocity will be lower. Therefore, the airflow behind the rotating component 3 will be biased towards the side with higher airflow velocity. As a result, the dynamic pressure on the side with higher flow velocity behind the driving component will increase, and most of the airflow will be introduced to this side and flow out through the branch pipe on this side.

[0032] Since the airflow regulating valve's regulating capacity is achieved through the rotation direction and speed of the rotating component 3, the current operating status of the airflow regulating valve can be identified through the status feedback of the actuator 4. This improves the problem of the airflow regulating valve's operating status being difficult to monitor, which is highly advantageous for systems requiring full-process monitoring of the system's operating conditions. Because there is no resistance mechanism, the system flow characteristics outside the branch where the airflow regulating valve is located remain essentially unchanged. Therefore, the airflow distribution of two to three branches can be controlled independently without affecting the airflow of other unrelated branches.

[0033] Reference Figure 1 and Figure 3 The air inlet duct 1 is a metal pipe with a circular cross-section. The number of branched guide pipes 2 is at least two. In this embodiment, two branched guide pipes 2 are used, and the specifications of the two branched guide pipes 2 are exactly the same. The ends of both branched guide pipes 2 are welded to the air outlet end of the air inlet duct 1. The two branched guide pipes 2 and the air inlet duct 1 form a Y-shape. The two branched guide pipes 2 are coplanar, and the plane containing the axes of the two branched guide pipes 2 is designated as the guide surface. The axis of the air inlet duct 1 is located within the guide surface.

[0034] Rotating component 3 is the core tube, which is cylindrical in shape. The cylindrical core tube has a large outer wall surface area, which facilitates the guidance of more air from the low velocity side to the high velocity side during one rotation of the core tube.

[0035] Reference Figure 1 and Figure 3The rotation axis of the rotating component 3 forms an angle with the guide surface. Preferably, the angle between the active axis of the rotating component 3 and the guide surface is 90°, that is, the rotation axis of the rotating component 3 is set perpendicular to the guide surface. The rotation axis of the rotating component 3 also intersects with and is perpendicular to the axis of the air inlet pipe 1.

[0036] The rotation axis of the rotating component 3 is directly opposite the intersection of the two bifurcated guide pipes 2, so that the side with high flow velocity and the side with low flow velocity of the rotating component 3 are directly opposite the two bifurcated guide pipes 2. This makes the rotational kinetic energy of the rotating component 3 have the highest air guiding efficiency, which facilitates the introduction of gas from the side with low flow velocity of the rotating component 3 into the side with high flow velocity, and makes most of the air flow out of the bifurcated pipe on the side with high flow velocity.

[0037] Reference Figure 1 and Figure 3 The driver 4 is a speed-regulating servo motor, which is fixedly mounted on the air inlet pipe 1 by bolts. The output shaft of the speed-regulating servo motor is connected to the end of the rotating component 3 that extends out of the air inlet pipe 1 via a universal coupling. The speed-regulating servo motor facilitates the adjustment of its own rotation direction and speed. On the one hand, it realizes the forward and reverse rotation control of the rotating component 3, realizing the reversal of the low-velocity side and the high-velocity side during air circulation; on the other hand, it realizes the rotation speed control of the rotating component 3, realizing the amount of air guided by the rotating component 3 during air circulation, and realizing the adjustment of the airflow speed on both sides of the rotating component 3.

[0038] The implementation principle of Example 1 is as follows: The actuator 4 drives the rotating component 3 to rotate at a high speed in a specific direction. The rotating component 3 causes the air in the outer attached layer to rotate, resulting in different airflow velocities on both sides of the rotating component 3. According to Bernoulli's principle, the airflow behind the rotating component 3 will be biased towards the side with higher airflow velocity. Therefore, the dynamic pressure on the side with higher airflow velocity behind the actuator will increase, and most of the airflow will be guided to this side and flow out through the branch pipe on that side. The current working state of the airflow regulating valve can be identified through the status feedback of the actuator 4, which improves the problem that the working state of the airflow regulating valve is not easy to monitor. This is very advantageous for systems that require full-process monitoring of the system's operating conditions. Moreover, after the airflow regulating valve is adjusted, the system flow characteristics outside the branch where the airflow regulating valve is located remain basically unchanged, and it will not affect the airflow of other unrelated branches. Example 2: Magnus air volume regulating valve, refer to Figure 4 The difference between this embodiment and embodiment 1 is that a transmission 7 is provided between the driver 4 and the rotating member 3.

[0039] A connecting flange 9 is welded and installed at the end of the air inlet pipe 1 away from the branch guide pipe 2. The connecting flange 9 facilitates the connection of the air supply pipe of the air inlet pipe 1.

[0040] A friction sleeve 5 is fitted onto the outer wall of the rotating component 3. In this embodiment, the friction sleeve 5 is a rubber sleeve, and its outer wall is provided with friction patterns 6. The friction sleeve 5 increases the outer wall area of ​​the driving component, facilitating the contact of more air with the rotating outer wall. The friction patterns 6 increase the surface friction coefficient of the rotating component 3, making it easier for the friction sleeve 5 to rotate more air as the rotating component 3 drives the friction sleeve 5 to rotate. The friction sleeve 5 and the friction patterns 6 work together to facilitate the formation of a larger volume of air adhering to the outer side of the rotating component 3. Furthermore, by replacing the friction sleeve 5 with different friction patterns 6, the friction coefficient of the outer wall of the rotating component 3 can be adjusted, thereby changing the influence of the rotating component 3 on airflow. Both bifurcated guide pipes 2 are flanged at the ends furthest from the air inlet pipe 1 and are connected to pipe flow meters 8. The pipe flow meters 8 monitor and measure the air flow rate of the two bifurcated guide pipes 2 respectively, and the relevant data of the air inlet pipe 1 can be obtained by calculating the sum of the detection data of the two pipe flow meters 8.

[0041] The gearbox 7 is integrated at the end of the driver 4 and is bolted to the air inlet pipe 1. The input shaft of the gearbox 7 is connected to the output shaft of the driver 4 via a coupling, and the output shaft of the gearbox 7 is connected to the end of the rotating component 3 extending out of the air inlet pipe 1 via a coupling. The gearbox 7 changes the speed of the output rotational power of the driver 4, enabling a wider range of speed adjustment for the rotating component 3, thus improving the speed adjustment range of the rotating component 3 and facilitating its adaptation to different airflow regulating valve applications.

[0042] The implementation principle of Example 2 is as follows: By setting a gearbox 7, the gearbox 7 changes the output rotational power of the driver 4, so as to realize a wider range of speed adjustment of the output speed of the driver 4 to the rotating part 3, improve the speed adjustment range of the rotating part 3, and facilitate the rotating part 3 to adapt to different air volume regulating valve application scenarios; by setting a pipe flow meter 8 at the end of the bifurcation guide pipe 2, the pipe flow meter 8 can facilitate the monitoring and measurement of the air flow rate flowing out of the bifurcation guide pipe 2.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A Magnus air volume regulating valve, characterized in that: It includes an air inlet pipe (1), at least two branched guide pipes (2) connected to the air outlet end of the air inlet pipe (1), a rotating component (3) rotatably installed in the air inlet pipe (1), and a driver (4) for driving the rotating component (3) to rotate. The at least two branched guide pipes (2) are arranged in the same plane, and the plane where the axis of the at least two branched guide pipes (2) is located is set as the guide surface. The rotation axis of the rotating component (3) forms an angle with the guide surface. The rotation axis of the rotating component (3) is perpendicular to the guide surface, and the rotation axis of the rotating component (3) intersects with the axis of the air inlet pipe (1); The rotating component (3) is a cylindrical core tube; The driver (4) is a speed-regulating servo motor; the outer wall of the rotating part (3) is detachably fitted with a friction sleeve (5), and the surface of the friction sleeve (5) is provided with friction patterns (6); by setting the friction sleeve (5) and setting the friction patterns (6) on the surface of the friction sleeve (5), the friction sleeve (5) increases the outer wall area of ​​the rotating part (3), and the friction patterns (6) increase the surface friction coefficient of the rotating part (3). The friction sleeve and the friction patterns work together to make a larger volume of attached air layer surround the outside of the rotating part (3); by replacing the friction sleeve (5) with different friction patterns (6), the friction coefficient of the outer wall of the rotating part (3) is adjusted to change the influence of the rotating part (3) on the airflow; The output shaft of the driver (4) is connected to a transmission (7), and the output shaft of the transmission (7) is connected to the rotating part (3). The transmission (7) is fixedly installed on the air inlet pipe (1). The transmission (7) is integrated into the end of the driver (4) and fixedly installed on the air inlet pipe (1). The input shaft of the transmission (7) is connected to the output shaft of the driver (4), and the output shaft of the transmission (7) is connected to the end of the rotating part (3) extending out of the air inlet pipe (1). The transmission (7) changes the speed of the output rotational power of the driver (4) to improve the speed adjustment range of the rotating part (3) so that the rotating part (3) can be adapted to different air volume regulating valve application scenarios. A pipe flow meter (8) is fixedly installed at the air outlet of the bifurcation guide pipe (2); the pipe flow meter (8) monitors and measures the air flow rate flowing out of the bifurcation guide pipe (2).

2. The Magnus airflow regulating valve according to claim 1, characterized in that: A connecting flange (9) is fixedly installed at the end of the air inlet pipe (1) away from the bifurcation guide pipe (2).

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