Cold flow system of vortex tube
By introducing structures such as return pipes, air compressors, guide rings, air pressure ports and guide plates into the vortex tube cold flow system, and utilizing air negative pressure and the Bernoulli principle, the problem of poor cold flow gas flow is solved, achieving efficient flow and smooth output of the cold flow.
Patent Information
- Application Number
- CN202422749509.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-12
AI Technical Summary
The cold flow gas flow efficiency in the traditional vortex tube cold flow system is low and not smooth, and there is a problem of poor gas flow.
By setting up structures such as return pipes, air compression packs, guide rings, wind pressure ports and guide plates, and utilizing the Bernoulli principle and the formation of negative air pressure, the flow speed and smoothness of the cold flow gas are enhanced, and combined with the heating structure to achieve the combined output of cold flow and hot flow.
The flow speed and smoothness of the cold flow gas are improved, the utilization efficiency of the cold flow is enhanced, the gas backflow is avoided, and the smooth merging and output of the air flow is achieved.
Smart Images
Figure CN223460622U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of vortex tube, and relates to a cold flow system of vortex tube. BACKGROUND
[0002] Vortex tube refrigeration is a method of obtaining refrigeration by means of vortex tube action to make high-speed airflow produce vortex separation of cold and hot airflow, utilizing cold airflow molecule inertia flow rate and hot airflow molecule activity flow rate to make the two reverse flow separation. SUMMARY
[0003] To solve the above technical problems, the utility model provides a kind of cold flow system of vortex tube, accelerates the flow rate of cold flow gas and makes the flow speed of inert cold flow gas faster, and the airflow flows smoothly, and cold flow gas backflow can be avoided.
[0004] The technical scheme adopted by the utility model is:
[0005] A kind of cold flow system of vortex tube, including the backflow pipe of recovery cold flow, the backflow pipe is arranged in the air inlet channel of vortex tube, the outlet of the backflow pipe is provided with the air pressure bag of forming air negative pressure, the radial outer ring of the air pressure bag is provided with the flow guide ring for rotating acceleration of airflow, the flow guide ring is provided with the wind pressure port of increasing speed on one side, the wind pressure port is communicated with air outlet by smooth channel, the outer wall of the smooth channel is provided with the drainage piece, the smooth channel is provided with the heating structure before air outlet in.
[0006] Further, the air pressure bag includes spherical wall surface and end face, the negative pressure flow area is formed between the spherical wall surface and end face, and the spherical wall surface is communicated with the backflow pipe. The spherical wall surface is smoothly arranged to avoid air flow resistance and make the gas flow more smoothly.
[0007] Further, the channel communicated between the air pressure bag and the flow guide ring is narrowed along the airflow direction, which can prevent gas backflow and make the cold flow gas molecules continuously stack in the fixed area by mutual collision and extrusion between the cold flow inert gas molecules, generate internal and external negative pressure, thereby forming suction phenomenon at the small port outlet, directly provide the acceleration of cold flow gas flow, and increase the flow rate when cold flow flows.
[0008] Further, the wind pressure port is annularly arranged on the wall surface of the flow guide ring.
[0009] Further, the air inlet width of the wind pressure port is greater than the air outlet width of the wind pressure port. Thus, the air pressure at both ends of the air port presents a pressure difference, and the principle is the same as above, so that the gas flow presents a pressurized accelerated flow. The wind pressure port utilizes the Bernoulli principle, and the inside is large and the outside is small, so that the cold air flow circulating in the flow guide ring is pressurized and accelerated through the wind pressure port.
[0010] Further, the cold flow direction of the wind pressure port is opposite to the cold flow direction of the return pipe. The utility model accelerates the cold flow and guides it to the air outlet for heating, and then the heated flow and the divided hot flow are combined and blown out.
[0011] Further, the outer wall of the smooth channel is a growth structure, that is, a long tube structure, which enhances the gas flow and accelerates the gas flow process.
[0012] Further, the outer wall and the inner wall of the smooth channel are provided with a stepped structure.
[0013] Further, the flow guide piece is arranged on the outer wall of the smooth channel and located behind the stepped structure. The utility model guides the airflow pressurized by the wind pressure port, utilizes the power generated by the accelerated gas flow, and combines the flow guide piece to produce the centrifugal motion of the airflow, guides to the air outlet, and presents a spring turbine form to surround and spray from the air outlet.
[0014] The utility model has the advantages of:
[0015] 1. The air pressure bag is arranged to form air negative pressure, preventing gas backflow.
[0016] 2. The flow guide ring is arranged to accelerate the cold airflow under negative pressure. After the cold airflow enters the flow guide ring, it rotates and accelerates around the air ring.
[0017] 3. The wind pressure port is arranged to utilize the Bernoulli principle, and the inside is large and the outside is small, so that the circulating cold air in the flow guide ring is pressurized and accelerated through the wind pressure port.
[0018] 4. The flow guide piece is arranged to guide the airflow pressurized by the wind pressure port to the air outlet, and presents a spring turbine form to surround and spray from the air outlet. DRAWINGS
[0019] Fig. 1 It is a left side view of the utility model.
[0020] Fig. 2 It is a right side view of the utility model.
[0021] Fig. 3 It is a sectional view of the utility model.
[0022] In the figure, 1, return pipe; 2, bleed air system; 3, air compression package; 31, spherical wall surface; 32, end surface; 4, flow guide ring; 5, wind pressure port; 6, flow guide piece; 7, heating device; 8, air outlet; 9, channel; 10, smooth channel; 11, stepped structure; 12, outer wall; 13, inner wall; 14, air inlet channel. DETAILED DESCRIPTION
[0023] The utility model will be further described below in conjunction with specific embodiments, but will not limit the utility model to these specific embodiments. Those skilled in the art should realize that the utility model covers all alternatives, improvements and equivalents that can be included in the scope of claims.
[0024] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more, unless otherwise explicitly limited.
[0025] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0026] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature, can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them.Moreover, first feature "on", "above" and "on" second feature includes that first feature is directly above and obliquely above second feature, or only indicates that first feature is higher than second feature in horizontal height.First feature "under", "below" and "under" second feature includes that first feature is directly below and obliquely below second feature, or only indicates that first feature is lower than second feature in horizontal height.
[0027] Reference Figs. 1-3 The embodiment provides a cold flow system of a vortex tube, which comprises a return pipe 1, the front end of the return pipe 1 is communicated with a bleed air system 2 to return cold flow, that is, the return pipe 1 is arranged in an air inlet channel 14 of the vortex tube, the outlet of the return pipe 1 is provided with an air pressure bag 3 for forming air negative pressure, the radial outer ring of the air pressure bag 3 is provided with a flow guide ring 4 for rotating and accelerating air flow, one side of the flow guide ring 4 is provided with a wind pressure port 5 for increasing speed, the wind pressure port 5 is communicated with an air outlet 8 through a smooth channel 10. The outer wall of the smooth channel 10 is provided with a flow guide piece 6, and the smooth channel 10 is provided with a heating structure 7 in front of the air outlet 8.
[0028] The air pressure bag 3 comprises a spherical wall 31 and an end face 32, a negative pressure flow area is formed between the spherical wall 31 and the end face 32, and the spherical wall 31 is communicated with the return pipe 1. The spherical wall 31 is arranged in a smooth manner, air flow is avoided, and gas flow is more smooth. The channel 9, which is communicated between the air pressure bag 3 and the flow guide ring 4, is narrow along the air flow direction, can prevent gas backflow, and can make cold flow gas molecules continuously stack in a fixed area through mutual collision and extrusion between cold flow inert gas molecules, so that internal and external negative pressure intensities are generated, thereby forming a suction flow phenomenon at a small port outlet, directly providing acceleration of cold flow gas flow, and increasing flow speed when the cold flow flows.
[0029] The wind pressure port 5 is annularly arranged on the wall surface of the flow guide ring 4. The air inlet width of the wind pressure port 5 is greater than the air outlet width of the wind pressure port 5, so that the air pressure at both ends of the wind pressure port presents a pressure difference, and the principle is the same as above, so that the gas flow presents pressurized accelerated flow. The wind pressure port 5 utilizes the Bernoulli principle, and the inside is large and the outside is small, so that the circulating cold air in the flow guide ring 4 is pressurized and accelerated through the wind pressure port 5. The cold flow direction of the wind pressure port 5 is opposite to the cold flow direction of the return pipe 1. The utility model accelerates the cold flow and guides the cold flow to the air outlet for heating, and then blows out the cold flow and the hot flow which are combined.
[0030] The outer wall 12 of the smooth channel 10 is an arc structure, which enhances the gas flow and accelerates the gas flow process. The inner wall 13 of the smooth channel 10 is provided with a stepped structure 11. Of course, the stepped structure 11 can also be arranged on the outer wall 12. The outer wall 12 of the smooth channel 10 is provided with a flow guide piece 6 behind the stepped descending structure 11. The utility model guides the airflow pressurized by the air pressure port 5 through the flow guide piece 6, utilizes the power generated by the accelerated gas flow, and combines the flow guide piece 6 to generate the centrifugal motion of the airflow, guides to the air outlet 8, and presents the spring turbine form to surround and spray from the air outlet 8. The heating structure 7 is used for heating the airflow guided by the flow guide piece 6 and blowing out from the air outlet 8, and utilizes the temperature difference to form the water ion in the air outlet 8 and spray out.
[0031] The utility model sets up air pressure bag, forms air negative pressure, prevents gas reflux. Set up the flow guide ring, after the cold air flow of negative pressure acceleration, the cold air flow enters the flow guide ring, rotates and accelerates around the air ring. Set up the air pressure port, utilizes Bernoulli principle, inside big outside small, will circulate cold air in the flow guide ring through the air pressure port and pressurizes and accelerates. Set up the flow guide piece, guides the airflow pressurized by the air pressure port, guides to the air outlet, presents the spring turbine form to surround and spray from the air outlet.
Claims
1. A cold stream system of a vortex tube, comprising a return tube for recovering a cold stream, the return tube being disposed in an air inlet passage of the vortex tube, characterized in that: The outlet of the return pipe is provided with an air pressure bag forming air negative pressure, a radial outer ring of the air pressure bag is provided with a flow guide ring for rotating and accelerating airflow, one side of the flow guide ring is provided with a speed-increased air pressure port, the air pressure port is communicated with an air outlet through a smooth channel, a drainage fin is arranged on the outer wall of the smooth channel, and a heating structure is arranged in the smooth channel in front of the air outlet.
2. A cold flow system for a vortex tube according to claim 1, wherein: The air pressure bag comprises a spherical wall surface and an end surface, and a negative pressure flow area is formed between the spherical wall surface and the end surface.
3. A cold flow system for a vortex tube according to claim 2, wherein: The channel communicated between the air pressure bag and the flow guide ring is gradually narrowed along the airflow direction.
4. A cold flow system for a vortex tube according to claim 1, wherein: The air pressure port is annularly arranged on the wall surface of the flow guide ring.
5. A cold flow system for a vortex tube according to claim 4, wherein: The air inlet width of the air pressure port is greater than the air outlet width of the air pressure port.
6. A cold flow system for a vortex tube according to claim 1, wherein: The airflow direction of the air pressure port is opposite to the airflow direction of the return pipe.
7. A cold flow system for a vortex tube according to claim 1, wherein: The outer wall of the smooth channel is a growth structure.
8. A cold flow system for a vortex tube according to claim 1, wherein: The outer wall and the inner wall of the smooth channel are provided with a stepped structure.
9. A cold flow system for a scroll pump according to claim 8, wherein: The drainage fin is arranged on the outer wall of the smooth channel and located behind the stepped structure.