Vortex tube

Abstract

A vortex tube comprises a drainage system and a cold flow system, the drainage system comprises an air inlet, an air guide wall for guiding the direction of airflow and a vortex ring airflow wall for enabling the airflow to flow in a vortex mode are arranged at the air inlet, and the air inlet is communicated with a cold and hot air distribution valve for distributing cold and hot airflow through an airflow channel. A hot flow outlet is formed in the wall face, located outside the cold and hot air distribution valve, of the airflow channel and formed in the front side of the air outlet. The cold flow system comprises a backflow pipe arranged at the air inlet, the front end of the backflow pipe is communicated with the airflow channel to flow back cold flow, an air compression bag for forming air negative pressure is arranged at an outlet of the backflow pipe, a flow guide ring for rotationally accelerating the cold flow is arranged on the radial outer ring of the air compression bag, and an air pressure opening for accelerating is formed in one side of the flow guide ring. The air pressure opening communicates with the air outlet through a smooth channel, a heating structure is arranged in the smooth channel and located on the front side of the air outlet, and cold flow is heated, converged with hot flow and then flows out of the air outlet.

Description

Technical Field

[0001] This invention belongs to the field of vortex tube technology and relates to a vortex tube. Background Technology

[0002] Vortex tube refrigeration is a method that uses a vortex tube to create vortices in a high-speed airflow, separating it into cold and hot streams. The cold stream's inert velocity and the hot stream's active velocity cause them to flow in opposite directions, thus achieving refrigeration. Traditionally, the cold air is returned through a return pipe and then directly delivered to the appropriate components for use. However, this method is not very efficient and suffers from problems with obstructed gas flow. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a vortex tube that accelerates the flow rate of cold gas, increases the flow speed of inert cold gas, ensures smooth airflow, and prevents cold gas backflow.

[0004] The technical solution adopted in this invention is:

[0005] A vortex tube includes a flow guiding system and a cold flow system. The flow guiding system includes an air inlet, at which a directional air guide wall is provided to guide the airflow and a vortex ring airflow wall to compress and vortex the airflow. The air inlet is connected to a hot and cold air distribution valve for separating hot and cold airflows through an airflow channel. A hot flow outlet is opened on the wall outside the hot and cold air distribution valve in the airflow channel, and the hot flow outlet is located in front of the air outlet. The cold flow system includes a return pipe at the air inlet. The front end of the return pipe is connected to the airflow channel to return the cold flow. An air compressor that forms a negative air pressure is provided at the outlet of the return pipe. A flow guide ring that accelerates the rotation of the cold flow is provided on the radial outer ring of the air compressor. An air pressure port that accelerates the flow is provided on one side of the flow guide ring. The air pressure port is connected to the air outlet through a smooth channel. A heating structure is provided in the smooth channel in front of the air outlet. The cold flow is heated and merges with the hot flow before flowing out of the air outlet.

[0006] Furthermore, the air compressor includes a spherical wall and an end face, forming a negative pressure flow zone between the spherical wall and the end face, and the spherical wall is connected to the return pipe. The spherical wall is smoothly designed to avoid airflow obstruction and allow for smoother gas flow.

[0007] Furthermore, the channel connecting the air compressor and the guide ring narrows along the airflow direction, which can prevent gas backflow and allow the cold gas molecules to continuously stack in a fixed area through mutual collision and compression between the cold inert gas molecules, generating internal and external negative pressure, thereby forming a suction phenomenon at the small port outlet, directly providing acceleration for the cold gas flow and increasing the flow velocity of the cold gas.

[0008] Furthermore, the air pressure port is annularly positioned on the wall of the guide ring. The width of the air pressure port's inlet is greater than the width of its outlet, creating a pressure difference between the two ends of the port. Following the same principle, this achieves pressurized and accelerated gas flow. Utilizing Bernoulli's principle, the air pressure port is wider at the inside and narrower at the outside, pressurizing and accelerating the cold airflow circulating within the guide ring.

[0009] Furthermore, the cold flow direction of the air pressure port is opposite to that of the cold flow direction of the return pipe. This invention accelerates the cold flow, guides it to the air outlet for heating, and then merges it with the diverted hot flow before blowing it out.

[0010] Furthermore, the smooth channel is located outside the airflow channel, and the outer wall of the smooth channel is an arc-shaped structure. The outer wall and / or inner wall of the smooth channel are provided with a stepped structure to enhance gas flow and accelerate the gas flow process.

[0011] Furthermore, a guide vane is provided on the outer wall of the smooth channel behind the stepped structure to guide the cold air to the heating structure for heating. This invention guides the pressurized airflow from the air pressure port using the guide vane, utilizing the power generated by the accelerated flow of the gas to combine with the guide vane to create centrifugal motion of the airflow, guiding it to the air outlet, where it is ejected in a spring-turbine-like manner.

[0012] Furthermore, the air inlet is perpendicular to the airflow channel, and the air inlet draws in airflow through an external motor.

[0013] Alternatively, the air inlet and the airflow channel are arranged in a straight line, and the air inlet is provided with a vortex air intake structure.

[0014] Furthermore, the vortex ring airflow wall is located outside the return pipe, and the directional air guide wall is located on one side of the vortex ring airflow wall.

[0015] The beneficial effects of this invention are:

[0016] 1. Set up an air compressor to create negative air pressure and prevent gas backflow.

[0017] 2. A guide ring is installed to guide the cold airflow accelerated by negative pressure. After the cold airflow enters the guide ring, it rotates and accelerates around the air ring.

[0018] 3. Set up air pressure vents, and use Bernoulli's principle to make the inner part larger and the outer part smaller. This will pressurize and increase the speed of the circulating cold air in the guide ring through the air pressure vents.

[0019] 4. Install a deflector plate to guide the pressurized airflow from the air pressure port to the air outlet, where it will be ejected in a spring turbine-like manner. Attached Figure Description

[0020] Figure 1This is a three-dimensional schematic diagram of Embodiment 1 of the present invention.

[0021] Figure 2 This is a schematic diagram of the left side of Embodiment 1 of the present invention.

[0022] Figure 3 This is a schematic diagram on the right side of Embodiment 1 of the present invention.

[0023] Figure 4 This is a cross-sectional schematic diagram of Embodiment 1 of the present invention.

[0024] Figure 5 This is a schematic diagram of the left side of Embodiment 2 of the present invention.

[0025] Figure 6 This is a schematic diagram on the right side of Embodiment 2 of the present invention.

[0026] Figure 7 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention.

[0027] In the diagram, 1. Return pipe; 2. Air inlet; 3. Air compressor; 31. Spherical wall; 32. End face; 4. Guide ring; 5. Air pressure port; 6. Drain vane; 7. Heating structure; 8. Air outlet; 9. Channel; 10. Smooth channel; 11. Stepped structure; 12. Outer wall; 13. Inner wall; 14. Airflow channel; 15. Directional air guide wall; 16. Vortex airflow wall; 17. Hot and cold air distribution valve; 18. Hot air outlet. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments, but the invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all alternatives, improvements, and equivalents that may be included within the scope of the claims.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. 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 with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] Example 1

[0033] Reference Figure 1-4This embodiment provides a vortex tube, including a flow guiding system and a cold flow system. The flow guiding system includes an air inlet 2, at which a directional air guiding wall 15 is provided to guide the airflow and a vortex ring airflow wall 16 to compress the airflow into a vortex flow. The air inlet 2 is connected to a hot and cold air distribution valve 17 for splitting hot and cold airflows through an airflow channel 14. A hot air outlet 18 is provided on the wall surface of the airflow channel 14 outside the hot and cold air distribution valve 17, and the hot air outlet 18 is located in front of the air outlet 8. The cold flow system includes... A return pipe 1 is located at the air inlet 2. The front end of the return pipe 1 is connected to the airflow channel 14 to return the cold air. An air compressor 3 is provided at the outlet of the return pipe 1 to form a negative air pressure. A guide ring 4 is provided on the radial outer ring of the air compressor 3 to rotate and accelerate the airflow. An air pressure port 5 for speed increase is provided on one side of the guide ring 4. The air pressure port 5 is connected to the air outlet 8 through a smooth channel 10. A heating structure 7 is provided in front of the air outlet 8 inside the smooth channel 10. After the cold air is heated, it merges with the hot air and flows out of the air outlet 8.

[0034] The air compressor 3 described in this embodiment includes a spherical wall 31 and an end face 32, forming a negative pressure flow zone between the spherical wall 31 and the end face 32. The spherical wall 31 is connected to the return pipe 1. The spherical wall 31 is smoothly designed to avoid airflow obstruction and allow for smoother gas flow. The channel 9 connecting the air compressor 3 and the guide ring 4 narrows along the airflow direction, which not only prevents gas backflow but also accelerates airflow through mutual collision and compression between gases.

[0035] In this embodiment, the air pressure port 5 is annularly arranged on the wall of the guide ring 4. The width of the air inlet of the air pressure port 5 is greater than the width of the air outlet. Utilizing Bernoulli's principle, the air pressure port 5, being larger inside and smaller outside, pressurizes and accelerates the circulating cold air within the guide ring 4. The airflow direction of the air pressure port 5 is opposite to that of the return pipe 1. This invention accelerates the cold air, guides it to the air outlet, heats it, and then merges it with the diverted hot air before blowing it out.

[0036] In this embodiment, the smooth channel 10 is located outside the airflow channel 14. The outer wall 12 of the smooth channel 10 has an arc-shaped structure to enhance gas flow and accelerate the gas flow process. A stepped structure 11 is provided on the inner wall 13 of the smooth channel 10. Alternatively, a stepped structure 11 can be provided on the outer wall 12. A guide plate 6 is provided on the outer wall 12 of the smooth channel 10 behind the stepped descending structure 11. In this invention, the airflow pressurized by the air pressure port 5 is guided by the guide plate 6 to the air outlet 8, where it is ejected in a spring turbine-like manner. A heating structure 7 is provided inside the smooth channel 10 in front of the air outlet 8 to heat the airflow guided by the guide plate 6 before it is blown out of the air outlet 8. Furthermore, water ions can be formed in the air outlet 8 by utilizing the temperature difference before being ejected.

[0037] In this embodiment, the air inlet 2 is perpendicular to the airflow channel 14, and the air inlet 2 draws in airflow through an external motor. The vortex-ring airflow wall 16 is located outside the return pipe 1, and the directional air guide wall 15 is located on one side of the vortex-ring airflow wall 16.

[0038] In this invention, the airflow is introduced from the air inlet 2 via an external motor. The inclined directional air guide wall 15 directs the incoming airflow, guiding it into the correct gas flow direction. The vortex airflow wall 16 then compresses the airflow through the guided direction, creating a vortex-like airflow resembling a coiled spring. The vortex airflow flows through the wall of the airflow channel 14 to the hot and cold air distribution valve 17. The valve's pointed tip separates the hot and cold airflows. The cold airflow, after passing the pointed tip, flows back along the middle of the airflow channel 14 to the return pipe 1, while the hot airflow exits from the surrounding hot air outlets 18. The return pipe 1 receives the cold airflow that has been diverted by the hot and cold air distribution valve 17 and returns to the air compressor 3, creating a negative air pressure within the air compressor 3. The guide ring 4 receives the cold air accelerated by the negative pressure from the air compressor 3. After entering the guide ring 4, the cold air rotates and accelerates around the guide ring 4 before flowing into the smooth channel 10 through the air pressure port 5. Utilizing Bernoulli's principle, the air pressure port 5, being larger inside and smaller outside, pressurizes and accelerates the circulating cold air within the guide ring 4. The smooth channel 10 guides the pressurized cold air from the air pressure port 5 directly to the heating structure 7, where it merges with the hot air flowing out through the hot air outlet 18 after being split, and is then blown out through the air outlet 8.

[0039] This invention incorporates an air compressor 3 to create negative air pressure and prevent gas backflow. A guide ring 4 is installed to guide the accelerated cold airflow through the negative pressure ring, causing it to rotate and accelerate around the air ring. An air pressure port 5, utilizing Bernoulli's principle (larger inside, smaller outside), pressurizes and accelerates the circulating cold air within the guide ring. A guide vane 6 guides the pressurized airflow from the air pressure port 5 to the air outlet 8, where it is ejected in a spring-turbine-like manner.

[0040] Example 2

[0041] See Figure 5-7 The difference between this embodiment and Embodiment 1 is that the air inlet 2 and the airflow channel 14 are arranged in a straight line, and the air inlet 2 is provided with a vortex air intake structure. In this embodiment, both the smooth channel 10 and the airflow channel 14 are extended.

[0042] The remaining structures and functions can be referred to in Embodiment 1.

Claims

1. A vortex tube, comprising a flow guiding system and a cold flow system, wherein the flow guiding system includes an air inlet, and the air inlet is provided with a directional air guide wall for guiding the airflow and a vortex ring airflow wall for compressing the airflow into a vortex flow; the air inlet is connected to a hot and cold air distribution valve for splitting hot and cold airflows via an airflow channel; a hot flow outlet is provided on the wall surface of the airflow channel outside the hot and cold air distribution valve, and the hot flow outlet is located in front of the air outlet; characterized in that: The cold flow system includes a return pipe located at the air inlet. The front end of the return pipe is connected to the airflow channel to return the cold flow. An air compressor that creates a negative air pressure is provided at the outlet of the return pipe. A guide ring that accelerates the rotation of the cold flow is provided on the radial outer ring of the air compressor. An air pressure port that increases speed is provided on one side of the guide ring. The air pressure port is connected to the air outlet through a smooth channel. A heating structure is provided in front of the air outlet inside the smooth channel. After the cold flow is heated, it merges with the hot flow and flows out of the air outlet.

2. A vortex tube according to claim 1, characterized in that: The air compressor includes a spherical wall and an end face, and a negative pressure flow zone is formed between the spherical wall and the end face. The spherical wall is connected to the return pipe.

3. A vortex tube according to claim 2, characterized in that: The channel connecting the air compressor and the guide ring narrows from wide to narrow along the airflow direction.

4. A vortex tube according to claim 1, characterized in that: The air pressure port is arranged in a ring on the wall of the guide ring, and the width of the air inlet of the air pressure port is greater than the width of the air outlet of the air pressure port.

5. A vortex tube according to claim 1, characterized in that: The airflow direction of the pressure port is opposite to that of the airflow direction of the return pipe.

6. A vortex tube according to claim 1, characterized in that: The smooth channel is located outside the airflow channel. The outer wall of the smooth channel is an arc-shaped structure, and the outer wall and / or inner wall of the smooth channel are provided with a stepped structure.

7. A vortex tube according to claim 6, characterized in that: The outer wall of the smooth channel is provided with a flow guide plate located behind the stepped structure to guide the cold flow to the heating structure for heating.

8. A vortex tube according to claim 1, characterized in that: The air inlet is perpendicular to the airflow channel, and the air inlet draws in airflow through an external motor.

9. A vortex tube according to claim 1, characterized in that: The air inlet and the airflow channel are arranged in a straight line, and a vortex air intake structure is provided at the air inlet.

10. A vortex tube according to claim 8 or 9, characterized in that: The vortex-ring airflow wall is located outside the return pipe, and the directional air guide wall is located on one side of the vortex-ring airflow wall.

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