Cold flow system of vortex tube

By introducing an air compressor, a guide ring, and a pressure port structure into the vortex tube cold flow system, the flow of cold gas is accelerated using Bernoulli's principle. The gas is then ejected in a spring turbine shape through a guide vane and a heating structure, solving the problems of poor cold gas flow and low utilization efficiency, and achieving efficient cold flow acceleration and smoothness.

CN122015315APending Publication Date: 2026-05-12NINGBO HORD INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO HORD INTELLIGENT TECH CO LTD
Filing Date
2024-11-12
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In traditional vortex tube cooling systems, the flow of cold gas is not smooth and the utilization efficiency is low, and there is a problem of gas backflow.

Method used

It adopts an air compressor, guide ring and air pressure port structure, uses Bernoulli's principle to accelerate the flow of cold gas, and guides the airflow to form a spring turbine-shaped ejection through the guide plate. Combined with the heating structure, it improves the airflow speed and smoothness.

Benefits of technology

It achieves efficient flow and acceleration of cold gas, avoids backflow, and improves the utilization efficiency of cold gas and the smoothness of airflow.

✦ Generated by Eureka AI based on patent content.

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Abstract

A cold flow system of a vortex tube comprises a backflow pipe, the front end of the backflow pipe is communicated with an air entraining system 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 air flow is arranged on the radial outer ring of the air compression bag, an air pressure opening for accelerating is formed in one side of the flow guide ring, and the air pressure opening is communicated with the air entraining system. And the air pressure port is communicated with the air outlet through a smooth channel. The air compression bag is arranged, air negative pressure is formed, and air backflow is prevented. And a flow guide ring is arranged, and after the cold air flow accelerated through negative pressure enters the flow guide ring, the cold air flow rotates around an air ring to be accelerated. The air pressure opening is formed, and circulating cold air in the flow guide ring is pressurized and accelerated through the air pressure opening by means of the Bernoulli principle with the large inside and the small outside.
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Description

Technical Field

[0001] This invention belongs to the field of vortex tube technology and relates to a vortex tube cooling system. 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 cold flow system 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 cold flow system includes a return pipe, the front end of which is connected to an air intake system for returning cold flow. The outlet of the return pipe is provided with an air compressor that forms a negative air pressure. The radial outer ring of the air compressor is provided with a guide ring that rotates and accelerates the airflow. One side of the guide ring is provided with a speed-increasing air pressure port, which is connected to an air outlet through a smooth channel.

[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 arranged in a ring on the wall of the guide ring.

[0009] Furthermore, the width of the air inlet of the air pressure port is greater than the width of the air outlet. This creates a pressure difference between the two ends of the air outlet, and the principle is the same as above, thus achieving pressurized and accelerated gas flow. Utilizing Bernoulli's principle, the air pressure port is wider at the inside and narrower at the outside, which pressurizes and accelerates the cold airflow circulating within the guide ring as it passes through the air pressure port.

[0010] 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.

[0011] Furthermore, the outer wall of the smooth channel has an arc-shaped structure, which enhances gas flow and accelerates the gas flow process.

[0012] Furthermore, the outer and / or inner walls of the smooth channel are provided with a stepped structure.

[0013] Furthermore, a guide vane is provided on the outer wall of the smooth channel behind the stepped structure. This invention guides the pressurized airflow from the air pressure port using the guide vane. The power generated by the accelerated flow of gas, combined with the guide vane, creates centrifugal motion of the airflow, guiding it to the air outlet and causing it to be ejected from the outlet in a spring-turbine-like manner.

[0014] Furthermore, a heating structure is provided on the front side of the air outlet in the smooth channel, which is used to heat the airflow guided by the guide plate and then blow it out from the air outlet.

[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, utilizing Bernoulli's principle, with the inner vents being larger than the outer vents, so that the circulating cold air in the guide ring is pressurized and accelerated 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 1 This is a three-dimensional schematic diagram of the present invention.

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

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

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

[0024] In the diagram, 1 is the return pipe; 2 is the air intake system; 3 is the air compressor; 31 is the spherical wall; 32 is the end face; 4 is the guide ring; 5 is the air pressure port; 6 is the air intake plate; 7 is the heating device; 8 is the air outlet; 9 is the channel; 10 is the smooth channel; 11 is the stepped structure; 12 is the outer wall; and 13 is the inner wall. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Reference Figure 1-4 This embodiment provides a vortex tube cold flow system, including a return pipe 1. The front end of the return pipe 1 is connected to the air intake system 2 to return cold flow. 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.

[0030] 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, preventing gas backflow and allowing the cold gas molecules to continuously stack within a fixed area through collisions and compression between them, generating internal and external negative pressure. This creates a suction phenomenon at the small port outlet, directly providing acceleration to the cold gas flow and increasing its velocity.

[0031] 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, thereby creating a pressure difference between the two ends of the air outlet. The principle is the same as above, thus achieving pressurized and accelerated gas flow. Utilizing Bernoulli's principle, the air pressure port 5 is wider at the inside and narrower at the outside, pressurizing and accelerating the circulating cold air within the guide ring 4. The cold air flow direction of the air pressure port 5 is opposite to that of the cold air flow direction of the return pipe 1. This invention accelerates the cold air flow, guides it to the air outlet for heating, and then merges it with the diverted hot air flow before blowing it out.

[0032] In this embodiment, 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 also 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. This invention guides the pressurized airflow from the air pressure port 5 using the guide plate 6. The power generated by the accelerated gas flow, combined with the guide plate, creates centrifugal motion of the airflow, guiding it to the air outlet 8, where it is ejected in a spring-turbine form. A heating structure 7 is provided inside the smooth channel 10 on the front side 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, the temperature difference allows water ions to form in the air outlet 8 before being ejected.

[0033] This invention incorporates an air compressor to create negative air pressure, preventing gas backflow. A guide ring is incorporated to guide the accelerated cold airflow, which then rotates and accelerates around the air ring. An air pressure inlet, utilizing Bernoulli's principle (larger inside, smaller outside), pressurizes and accelerates the circulating cold air within the guide ring. A deflector plate guides the pressurized airflow from the air pressure inlet to the outlet, where it is ejected in a spring-turbine-like manner.

Claims

1. A vortex tube cold flow system, comprising a return pipe, wherein the front end of the return pipe is connected to an air intake system for returning cold flow, characterized in that: The outlet of the return pipe is provided with an air compressor that forms a negative air pressure. The radial outer ring of the air compressor is provided with a guide ring that rotates and accelerates the airflow. One side of the guide ring is provided with a speed-increasing air pressure port, which is connected to the air outlet through a smooth channel.

2. The vortex tube cooling system 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. The vortex tube cooling system 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. The vortex tube cooling system according to claim 1, characterized in that: The air pressure port is arranged in a ring on the wall of the guide ring.

5. The vortex tube cooling system according to claim 4, characterized in that: 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.

6. The vortex tube cooling system 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.

7. The vortex tube cooling system according to claim 1, characterized in that: The outer wall of the smooth channel has an arc-shaped structure, which enhances gas flow and accelerates the gas flow process.

8. The vortex tube cooling system according to claim 1, characterized in that: The outer and / or inner walls of the smooth channel are provided with a stepped structure.

9. The vortex tube cooling system according to claim 8, characterized in that: A flow guide plate is provided on the outer wall of the smooth channel behind the stepped structure.

10. A vortex tube cooling system according to claim 1, characterized in that: The smooth channel has a heating structure installed on the front side of the air outlet.