Vortex generating device for vortex tube

Abstract

The utility model discloses a vortex generating device for a vortex tube. The vortex generating device comprises a vortex tube body, a vortex generator, a communicating area, a cold end connector, an adjusting nut, a cone return part and a nozzle. By arranging the vortex generator with the optimized gas path as the steepest curve, the effects of high efficiency, strong performance, uniform and reasonable flow field distribution and low pressure loss are achieved, so that the energy loss is greatly reduced, the cooling ratio of the whole system is improved by fully utilizing energy, and the cooling efficiency is improved under the effects of strong performance and uniform and reasonable flow field distribution. The effects of stable and ordered airflow and less flow separation and vortexes are generated, noise can be effectively reduced, and noise related to energy dissipation is reduced.

Description

Technical Field

[0001] The utility model relates to the relevant field of vortex tubes, in particular to a vortex generating device for vortex tubes. Background Art

[0002] The vortex tube generator works by allowing a portion of air to enter the vortex tube, controlling the air consumption and affecting the achievable temperature. The smaller the air consumption of the vortex tube generator, the less air is allowed to enter the vortex tube cyclone chamber. This situation also affects the amount of air from the vortex tube. A generator with a large air consumption will produce a large air flow; at the same time, a generator with a small air consumption will produce a small air flow. The generator also affects the achievable temperature. The smaller the generator, the lower the temperature of the cold air flow generated; at the same time, the larger the generator, the higher the temperature of the hot air flow generated.

[0003] Compared with complex refrigeration systems, the vortex generator inside the existing small vortex tube has a lower cooling capacity and a low cooling ratio. The generator has efficiency loss in the energy conversion process, fails to fully utilize the input compressed air energy to produce a more significant cooling effect, and may generate certain noise. All of the above need to be optimized to meet the ever-increasing usage needs. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a vortex generating device for a vortex tube.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vortex generating device for a vortex tube comprises a vortex tube body, a vortex generator, a connecting area, a cold end joint, an adjusting nut, a cone return, and a nozzle;

[0006] A vortex generator is embedded in the left end of the vortex tube body, and a connecting area is formed at the connection between the vortex tube body and the vortex generator;

[0007] The outer side of the right end of the cold end joint is threadedly connected to the vortex tube body, and it squeezes the vortex generator to the right;

[0008] The inner side of the left end of the adjusting nut is threadedly connected to the scroll body, and the inner thread is connected to a cone return;

[0009] A nozzle is provided at the bottom end of the vortex tube body, and the top end of the nozzle is connected to the connecting area. The vortex generator includes an assembly, a connecting surface, a radial inlet, a vortex area, a guide plate, and a cold channel. The assembly is embedded and placed inside the connection between the vortex tube body and the cold end joint. A connecting surface is provided on the outer side of the right end of the assembly, and a connecting area is formed between the connecting surface and the vortex tube body. A radial inlet is opened at the right end of the assembly, and the vortex area is provided at the right end of the assembly, and a guide plate is fixed inside the assembly. A cold channel is provided inside the assembly, and the left and right ends of the cold channel are respectively connected to the cold end joint and the vortex tube body.

[0010] Preferably, the guide plates are provided in multiple groups, which are evenly distributed along the circumference, and a group of radial inlets are opened between each two groups of guide plates, so that the compressed air entering from the radial inlets can rotate rapidly along the guidance of the guide plates to form a free vortex, thereby generating energy separation by virtue of the difference in angular velocity of rotation, forming cold and hot air flows.

[0011] It is further preferred that the connection between the radial inlet and the guide plate is arranged in the same horizontal direction, so that the compressed air entering from the radial inlet enters the vortex zone along the tangential direction, and forms a vortex along the guidance of the guide plate, thereby achieving smooth flow of airflow, reducing airflow resistance and energy loss, and helping to improve the cooling ratio.

[0012] It is further preferred that the cross-section of the assembly is "T"-shaped, and the height of the connecting surface at its right end is smaller than the height of the middle part. By setting a connecting surface with a smaller height, a connecting area is formed between the connecting surface and the vortex tube body, which facilitates the compressed air entering the conveying nozzle.

[0013] It is further preferred that the aperture at the right end of the cold channel is smaller, which effectively avoids excessive hot air from mixing into the cold air flow due to excessively large diameter, resulting in a lower cooling ratio. By reducing the aperture at the right end of the cold channel, the separation accuracy of cold and hot air is improved, thereby improving the cooling ratio.

[0014] It is further preferred that the vortex generator is made of stainless steel, is wear-resistant, and is suitable for various working environments.

[0015] Beneficial effects of the utility model:

[0016] The utility model achieves the effects of high efficiency, strong performance, uniform and reasonable flow field distribution and low pressure loss by setting a vortex generator with an optimized gas path as the fastest curve, thereby greatly reducing energy loss, making full use of energy to improve the cooling ratio of the entire system, and under the action of strong performance and uniform and reasonable flow field distribution, a smooth and orderly airflow and less flow separation and vortex effect are generated, which can effectively reduce the generation of noise and reduce the noise related to energy dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the side structure of the vortex generator of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the vortex generator of the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the vortex generator of the utility model;

[0021] Figure 5 It is a schematic diagram of the side structure of the vortex generator of the utility model.

[0022] Among them: vortex tube body-1, vortex generator-2, connecting area-3, cold end joint-4, adjusting nut-5, cone return-6, nozzle-7, assembly-21, connecting surface-22, radial inlet-23, vortex area-24, guide plate-25, cold channel-26. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0024] See also Figure 1 The utility model provides a vortex generating device for a vortex tube, comprising a vortex tube body 1, a vortex generator 2, a communication area 3, a cold end joint 4, an adjusting nut 5, a cone return 6, and a nozzle 7; the vortex generator 2 is embedded in the left end of the vortex tube body 1, and a communication area 3 is formed at the connection between the vortex tube body 1 and the vortex generator 2; the outer side of the right end of the cold end joint 4 is threadedly connected to the vortex tube body 1, and it squeezes the vortex generator 2 to the right; the inner side of the left end of the adjusting nut 5 is threadedly connected to the vortex tube body 1, and the cone return 6 is threadedly connected inside it; the bottom end of the vortex tube body 1 is provided with a nozzle 7, and the top end of the nozzle 7 is connected to the communication area 3.

[0025] See also Figure 2-5The utility model provides a vortex generating device for a vortex tube. The vortex generator 2 includes an assembly 21, a connecting surface 22, a radial inlet 23, a vortex zone 24, a guide plate 25, and a cold channel 26. The assembly 21 is embedded and placed inside the connection between the vortex tube body 1 and the cold end joint 4. A connecting surface 22 is provided on the outer side of the right end of the assembly 21, and a communication area 3 is formed between the connecting surface 22 and the vortex tube body 1. A radial inlet 23 is opened at the right end of the assembly 21. The vortex zone 24 is arranged at the right end of the assembly 21, and a guide plate 25 is fixed inside it. A cold channel 26 is arranged inside the assembly 21, and the left and right ends of the cold channel 26 are respectively connected to the cold end joint 4 and the vortex tube body 1.

[0026] In this embodiment, the guide plates 25 are provided in multiple groups, which are evenly distributed along the circumference, and a group of radial inlets 23 is opened between each two groups of guide plates 25, so that the compressed air entering from the radial inlet 23 can quickly rotate along the guide of the guide plate 25 to form a free vortex, thereby generating energy separation by virtue of the difference in angular velocity of rotation, forming two streams of cold and hot air. The connection between the radial inlet 23 and the guide plate 25 is arranged in the same horizontal direction, so that the compressed air entering from the radial inlet 23 can enter the vortex area 24 along the tangential direction, and form a vortex along the guide of the guide plate 25, thereby realizing air The smooth flow of air reduces the resistance and energy loss of air flow, which is beneficial to improving the cooling ratio. The cross-section of the assembly 21 is "T"-shaped, and the height of the right end connecting surface 22 is less than the height of the middle part. By setting the connecting surface 22 with a smaller height, it is convenient to form a connecting area 3 between the connecting surface 22 and the vortex tube body 1, which is convenient for the compressed air entering the conveying nozzle 7. The right end aperture of the cold channel 26 is small, which effectively avoids the situation where too much hot air is mixed into the cold air flow due to the large diameter, resulting in a decrease in the cooling ratio. By reducing the aperture at the right end of the cold channel 26, the separation accuracy of cold and hot air is improved, thereby improving the cooling ratio.

[0027] In this embodiment, the vortex generator 2 is equipped with different specifications to cope with different requirements of application scenarios and more detailed responses to the external environment in the same application scenario;

[0028] Among them, the cooling performance of the generator 6 is as follows:

[0029]

[0030] The cooling performance conversion table is as follows:

[0031] Temperature difference ℃ <![CDATA[W / m 2 ]]> <![CDATA[Btu / hr / m 2 ]]> 5 9.2 31.3 10 19.7 67.3 15 31.6 107.8 20 44.9 153.0 25 59.4 202.6 30 75.3 256.9

[0032] In addition, the fastest curve of generator 6 is shown in the figure below:

[0033]

[0034] The advantages of this fastest curve are as follows:

[0035] 1. Improved efficiency, allowing the airflow to pass through the vortex generator 2 more quickly, reducing energy loss, thereby improving the efficiency of the entire system;

[0036] 2. Enhanced performance, which helps to generate stronger and more stable vortices, thereby improving the working performance of the vortex generator 2, such as enhancing the ability to control the airflow;

[0037] 3. Optimizing the flow field distribution can make the airflow distribution more uniform and reasonable, reduce the generation of flow separation and vortex, and improve the stability and predictability of the flow;

[0038] 4. Reduce pressure loss, reduce the pressure drop of airflow when passing through the vortex generator 2, help save energy and improve the overall performance of the system;

[0039] Moreover, in the process of smoother and more orderly airflow flow, pressure fluctuations caused by rapid changes in airflow and turbulence are reduced. The reduction in pressure fluctuations can reduce noise generation, and less flow separation and eddy currents means less energy loss and disordered energy conversion, thereby reducing noise associated with energy dissipation and achieving noise reduction function.

[0040] See also Figure 1-Figure 5 When in use, the vortex tube is installed in the corresponding area and connected to other external devices. When compressed air is injected from the nozzle 7, the air passes through the connecting area 3 and rotates at high speed along the tangential direction to enter the radial inlet 23. After entering the radial inlet 23, it is affected by the guide plate 25 and quickly forms a free vortex.

[0041] The gas rotates at a lower speed, while the gas in the outer layer close to the pipe wall rotates at a higher speed. Due to the different rotational angular velocities of the gas, energy separation occurs. The kinetic energy of the gas in the inner layer decreases, the temperature decreases, and a cold air flow is formed. The gas in the outer layer rubs against the pipe wall, the kinetic energy increases, the temperature increases, and a hot air flow is formed. The cold air flow then enters the cold end joint 4 through the cold channel 26 and is successfully discharged.

[0042] The hot air flow passes through the vortex tube body 1 and flows toward the adjusting nut 5 at the right end, and is guided by the cone return 6 to stably flow out of the adjusting nut 5. In this process, the hot air flow is subject to less resistance due to the structure of the cone return 6, making the air flow derivation cross-section more regular, with little effect on the vortex shape and speed, and the cooling ratio is accurately adjusted.

[0043] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0044] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0045] The above are only preferred examples of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vortex generating device for a vortex tube, characterized in that: It comprises a vortex tube body (1), a vortex generator (2), a connecting area (3), a cold end joint (4), an adjusting nut (5), a cone return (6), and a nozzle (7); A vortex generator (2) is embedded in the left end of the vortex tube body (1), and a connecting area (3) is formed at the connection between the vortex tube body (1) and the vortex generator (2); The outer side of the right end of the cold end joint (4) is threadedly connected to the vortex tube body (1), and it squeezes the vortex generator (2) to the right; The inner side of the left end of the adjusting nut (5) is threadedly connected to the scroll body (1), and the inner side of the adjusting nut (5) is threadedly connected to a cone return (6); A nozzle (7) is provided at the bottom end of the scroll body (1), and the top end of the nozzle (7) is connected to the communication area (3); The vortex generator (2) comprises an assembly (21), a connection surface (22), a radial inlet (23), a vortex zone (24), a guide plate (25), and a cold channel (26). The assembly (21) is embedded and placed inside the connection between the vortex tube body (1) and the cold end joint (4). A connection surface (22) is arranged on the outside of the right end of the assembly (21). A communication zone (3) is formed between the connection surface (22) and the vortex tube body (1). A radial inlet (23) is opened at the right end of the assembly (21). The vortex zone (24) is arranged at the right end of the assembly (21) and a guide plate (25) is fixed inside the vortex zone. A cold channel (26) is arranged inside the assembly (21). The left and right ends of the cold channel (26) are respectively connected to the cold end joint (4) and the vortex tube body (1).

2. The vortex generating device for a vortex tube according to claim 1, characterized in that: The guide plates (25) are provided in multiple groups and are evenly distributed along the circumference, and a group of radial inlets (23) is provided between each two groups of guide plates (25).

3. The vortex generating device for a vortex tube according to claim 1, characterized in that: The connection between the radial inlet (23) and the guide plate (25) is arranged in the same horizontal direction.

4. The vortex generating device for a vortex tube according to claim 1, characterized in that: The cross section of the assembly (21) is in a "T" shape, and the height of the right end connecting surface (22) is smaller than the height of the middle part.

5. The vortex generating device for a vortex tube according to claim 1, characterized in that: The right end of the cold channel (26) has a smaller aperture.

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