A large-size vortex tube for low-temperature differential air conditioning

Abstract

This invention discloses a large-size, low-temperature differential air conditioning vortex tube, comprising a vortex chamber, an inlet pipe, a shell, a shifting assembly, a heat dissipation corrugated pipe, an end cap, and a regulating valve assembly. The vortex chamber includes an inner layer and an outer layer, with the outer layer fixedly fitted over the inner layer, forming a slit sandwich between them. The front end of the inner layer is a cold-end outlet, and the rear end is a hot-end outlet. The inlet pipe is mounted on the outer layer. The shell is slidably fitted onto the rear side of the outer wall of the outer layer. A sealing ring is installed on the inner wall of the shell. The shifting assembly is mounted on the outer layer. The heat dissipation corrugated pipe is fixedly installed at the rear end of the outer layer. The end cap is installed on the side of the shell away from the outer layer, and an exhaust port is provided on the end cap. The regulating valve assembly includes an adjusting rod and a frustum-shaped valve body. This invention enables switching between the two layers, meeting both summer cooling and winter heating needs. It can replace air conditioning for large-size, relatively low-temperature differential applications in enclosed spaces.

Description

Technical Field

[0001] This invention relates to the field of vortex tube technology, and in particular to a large-size vortex tube for low-temperature differential air conditioning. Background Technology

[0002] A vortex tube is an energy separation device that separates a working gas into a gas with a temperature higher than the inlet air temperature and a fluid with a temperature lower than the inlet air temperature by setting a certain pressure difference between the inlet and outlet. It consists of a nozzle, a vortex chamber, a hot-end tube, a hot-end regulating valve, a cold-end tube, and a cold-end orifice plate. The fluid enters through the high-pressure inlet and is accelerated by the nozzle. At the nozzle outlet, the fluid enters the vortex chamber tangentially, forming a rapid swirling flow. It gradually moves towards the hot-end outlet in the outer ring of the tube. The relatively high-temperature fluid then flows out through the gap in the hot-end regulating valve. In the middle region of the vortex tube, due to the pressure gradient between the hot and cold ends, it flows back, transferring momentum and heat with the fluids inside and outside the tube during this process, finally flowing out from the cold end. In this process, the fluid flowing out through the gap in the hot-end regulating valve gains some energy and becomes hot; while the fluid flowing out from the cold end loses some energy and becomes cold. The refrigeration principle of vortex tubes has been known for a considerable period of time. Currently, the main application of vortex tubes is in small-sized, cold-end cooling. Typical cooling temperatures range from tens of degrees below zero to a couple of hundred degrees Celsius. From an air conditioning technology perspective, research shows that several major Chinese air conditioning manufacturers possess related technologies based on vortex tubes. Publicly available information mainly focuses on vortex tube control technology; however, there is little discussion of the vortex tube's structure itself. From a research perspective, existing papers primarily focus on optimizing a single structure, rarely considering the overall structural design of vortex tubes from a dual-purpose (cooling and heating) perspective.

[0003] In existing technologies, the interior temperature of large air-supported membrane structures (typically several thousand or tens of thousands of square meters) can reach around 50°C in northern summers, while in winter, the temperature is below the human comfort temperature, generally around 10°C. In such enclosed spaces, due to the large area requiring cooling or heating, traditional air conditioning technology would necessitate installing too many air conditioners, resulting in high costs.

[0004] To address this, a large-size vortex tube for low-temperature differential air conditioning is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a large-size low-temperature difference air conditioning vortex tube, which aims to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a large-size low-temperature differential air conditioning vortex tube, comprising:

[0007] The vortex chamber includes an inner layer and an outer layer, the outer layer being fixedly sleeved outside the inner layer, and a slit sandwich is formed between the outer layer and the inner layer; the front end of the inner layer is a cold end outlet, and the rear end is a hot end outlet;

[0008] An air intake pipe, which is mounted on the outer layer;

[0009] The outer casing is slidably fitted onto the rear side of the outer wall of the outer layer; an exhaust pipe is installed on the outer wall of the outer casing, and a sealing ring is installed on the inner wall of the outer casing;

[0010] A shift assembly, which is mounted on the outer layer, is used to adjust the relative position of the housing and the outer layer;

[0011] A heat dissipation bellows is fixedly installed at the rear end of the outer layer and located inside the outer shell; the heat dissipation bellows has a tapered shape.

[0012] An end cap is installed on the side of the housing away from the outer layer, and an exhaust port is provided on the end cap;

[0013] A regulating valve assembly, comprising an adjusting rod and a frustum-shaped valve body, wherein the adjusting rod is threaded onto the end cap, and the frustum-shaped valve body is mounted on one end of the adjusting rod and extends into the heat dissipation bellows;

[0014] The inner layer has several flow channels, and the air inlet pipe and the flow channels are all connected to the slit interlayer. The outer diameter of the frustum-shaped valve body near the adjusting rod and the outer diameter of the heat dissipation bellows away from the outer layer are both adapted to the inner diameter of the sealing ring.

[0015] According to the present invention, a large-size low-temperature difference air conditioning vortex tube is provided. The shifting assembly includes a threaded rod and a first sliding groove. The threaded rod is fixedly installed on the outer wall of the outer layer. The first sliding groove is opened laterally at one end of the outer shell near the outer layer. Two second sliding grooves are opened longitudinally at intervals on the sliding groove. The first sliding groove and the second sliding groove are slidably connected to the threaded rod. A nut is threadedly connected to the threaded rod.

[0016] According to the present invention, a large-size low-temperature differential air conditioning vortex tube is provided, wherein the adjusting rod includes a wing plate and a lead screw, the wing plate is installed on the end of the end cover away from the outer shell by an extended bolt, and a gap is provided between the wing plate and the end cover;

[0017] The lead screw is threaded onto the end cap and threaded onto the wing plate; one end of the lead screw extends into the inner cavity of the outer shell and is fixedly connected to the frustum-shaped valve body.

[0018] According to the present invention, a large-size low-temperature differential air conditioning vortex tube is provided, wherein the frustum-shaped valve body includes a frustum-shaped valve body and a cylindrical connecting block. The frustum-shaped valve body extends into the heat dissipation bellows, the cylindrical connecting block is fixedly installed on one side of the frustum-shaped valve body, one end of the lead screw is fixedly connected to the cylindrical connecting block, and the outer diameter of the cylindrical connecting block is adapted to the inner diameter of the sealing ring.

[0019] According to the present invention, a large-size low-temperature differential air conditioning vortex tube is provided, wherein a fan blade is rotatably connected to one end of the frustum-shaped valve body away from the cylindrical connecting block.

[0020] According to the present invention, a large-size low-temperature differential air conditioning vortex tube is provided, wherein one end of the heat dissipation corrugated tube near the outer layer is provided as a small-diameter end and the other end is provided as a large-diameter end. The inner diameter of the small-diameter end is 300mm, the inner diameter of the large-diameter end is 327.5mm, and the length of the heat dissipation corrugated tube is 480mm.

[0021] According to the present invention, a large-size low-temperature differential air conditioning vortex tube is provided, wherein the exhaust port includes a plurality of arc-shaped grooves, and the plurality of arc-shaped grooves are circumferentially equally spaced on the end cover;

[0022] The width of the arc-shaped groove is 20mm to 40mm, and the arc angle of the arc-shaped groove is 60° to 70°.

[0023] According to the present invention, a large-size low-temperature differential air conditioning vortex tube is provided, wherein both the air inlet pipe and the air outlet pipe are equipped with quick-connect devices.

[0024] According to the present invention, a large-size low-temperature difference air conditioning vortex tube is provided, wherein the outer layer and the inner layer are detachably connected by several bolts, and sealing gaskets are provided between the outer layer and the inner layer, and between the end cap and the outer shell.

[0025] According to the present invention, a large-size low-temperature differential air conditioning vortex tube is provided, wherein the cold end outlet is detachably connected to a nozzle via a flange connector.

[0026] The present invention discloses the following technical effects:

[0027] This invention adjusts the relative position of the outer shell and the outer layer through a shifting component. By adjusting the position of the outer shell, the sealing ring moves back and forth, thereby achieving tight contact and separation with the frustum-shaped valve body. When the sealing ring moves backward, the frustum-shaped valve body and the sealing ring are tightly contacted and sealed. At the same time, there is an air intake gap between the frustum-shaped valve body and the heat dissipation bellows. At this time, it switches to a double-layer structure. The high-temperature gas separated by the vortex chamber through the air intake pipe enters the space between the heat dissipation bellows and the outer shell along the air intake gap between the heat dissipation bellows and the frustum-shaped valve body, and finally is discharged through the exhaust pipe.

[0028] When the sealing ring moves forward, the conical valve body separates from the sealing ring, and at the same time, the conical valve body fits tightly with the heat dissipation bellows. At this time, it switches to a single-layer structure. The hot gas separated from the air introduced into the intake pipe through the eddy current chamber enters the shell along the intake gap between the heat dissipation bellows and the conical valve body, and finally is directly discharged through the exhaust port on the end cover; the single-layer structure is suitable for improving the cold-end outlet effect of the eddy current tube when cooling the indoor environment; the double-layer structure is suitable for enhancing the thermal temperature difference at the hot end and improving the heating effect. The present invention uses a shifting component to achieve the structural change of the eddy current tube under two different application requirements of cooling and heating, thus meeting the needs of both summer cooling and winter heating, and can replace the traditional air-conditioning compressor, and can meet the temperature adjustment requirements in large-size, relatively low cold and hot end temperature difference in large enclosed spaces;

[0029] Based on the principle of cold and hot air diversion of the eddy current tube, the present invention uses a tapered heat dissipation bellows and a double-layer switchable tube structure, which not only ensures the refrigeration effect, but also enables the acquisition of a heating effect, and can meet the general requirements for air temperature adjustment in large air-supported membrane structure spaces; it can also utilize the fan air source supporting the air-supported membrane structure building to drive the eddy current tube temperature adjustment device to work, which not only makes full use of the air source, but also can replace the air conditioner to achieve temperature adjustment and solve the temperature adjustment problem in large enclosed indoor spaces;

[0030] In the present invention, air enters the slit sandwich through an intake pipe, and then enters the inner layer of the eddy current chamber through several flow ports for cold and hot air diversion; the installation position of the conical valve body can be adjusted by an adjusting rod, so as to adjust the intake gap between the conical valve body and the heat dissipation bellows, which is convenient for adjustment according to actual use requirements and improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 is a schematic structural diagram of the present invention;

[0033] Figure 2 is Figure 1 a partial enlarged view of A in

[0034] Figure 3 is a front view of the present invention;

[0035] Figure 4 is an axonometric drawing of the present invention;

[0036] Figure 5 This is a schematic diagram of the arc-shaped groove in this invention.

[0037] The components are as follows: 1. Inner layer; 2. Outer layer; 3. Slit interlayer; 4. Cold end outlet; 5. Hot end outlet; 6. Inlet pipe; 7. Outer shell; 8. Exhaust pipe; 9. Sealing ring; 10. Heat dissipation bellows; 11. End cap; 12. Flow channel; 13. Threaded rod; 14. First slide groove; 15. Second slide groove; 16. Wing plate; 17. Lead screw; 18. Frustum-shaped valve body; 19. Cylindrical connecting block; 20. Fan blade; 21. Arc groove; 22. Quick connection device; 23. Sealing gasket; 24. Nozzle. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Reference Figures 1-5 This invention provides a large-size low-temperature differential air conditioning vortex tube, comprising:

[0041] The vortex chamber includes an inner layer 1 and an outer layer 2. The outer layer 2 is fixedly sleeved on the outside of the inner layer 1, and a slit sandwich 3 is formed between the outer layer 2 and the inner layer 1. The front end of the inner layer 1 is the cold end outlet 4, and the rear end is the hot end outlet 5. In this embodiment, the flow field covered by the vortex chamber is defined as having a diameter D0 of 300 mm and a width of 120 mm. The wall thickness is proportionally enlarged according to the general vortex tube.

[0042] Air intake pipe 6 is installed on outer layer 2;

[0043] The outer casing 7 is slidably fitted onto the rear side of the outer wall of the outer layer 2; an exhaust pipe 8 is installed on the outer wall of the outer casing 7, and a sealing ring 9 is installed on the inner wall of the outer casing 7.

[0044] A shift assembly is mounted on the outer layer 2 and is used to adjust the relative position of the outer shell 7 and the outer layer 2.

[0045] The heat dissipation bellows 10 is fixedly installed at the rear end of the outer layer 2 and located inside the outer casing 7; the heat dissipation bellows 10 has a taper.

[0046] The end cover 11 is installed on the side of the outer shell 7 away from the outer layer 2, and an exhaust port is provided on the end cover 11;

[0047] The regulating valve assembly includes a regulating rod and a frustum-shaped valve body. The regulating rod is threadedly connected to the end cover 11, and the frustum-shaped valve body is installed at one end of the regulating rod and extends into the heat dissipation bellows 10;

[0048] Among them, a number of flow ports 12 are provided on the inner layer 1, and the intake pipe 6 and a number of flow ports 12 are both connected to the slit sandwich layer 3. The outer diameter of the end of the frustum-shaped valve body close to the regulating rod and the outer diameter of the end of the heat dissipation bellows 10 away from the outer layer 2 are both adapted to the inner diameter of the sealing ring 9;

[0049] With such a setting, in the present invention, the relative position of the outer shell 7 and the outer layer 2 is adjusted by the shifting component, and the position of the outer shell 7 is adjusted to drive the sealing ring 9 to move back and forth, so as to realize the tight fit and separation from the frustum-shaped valve body; when the sealing ring 9 moves backward, the frustum-shaped valve body is tightly fitted and sealed with the sealing ring 9, and at the same time, there is an intake interval between the frustum-shaped valve body and the heat dissipation bellows 10. At this time, it is switched to a double-layer structure, and the hot gas separated from the air introduced into the intake pipe 6 through the eddy current chamber enters between the heat dissipation bellows 10 and the outer shell 7 along the intake interval between the heat dissipation bellows 10 and the frustum-shaped valve body, and finally is discharged through the exhaust pipe 8;

[0050] When the sealing ring 9 moves forward, the frustum-shaped valve body is separated from the sealing ring 9, and at the same time, the frustum-shaped valve body is tightly fitted with the heat dissipation bellows 10. At this time, it is switched to a single-layer structure, and the hot gas separated from the air introduced into the intake pipe 6 through the eddy current chamber enters the inner part of the outer shell 7 along the intake interval between the heat dissipation bellows 10 and the frustum-shaped valve body, and finally is directly discharged through the exhaust port on the end cover 11; the single-layer structure is suitable for improving the cold-end outlet effect of the vortex tube when performing indoor cooling; the double-layer structure is suitable for enhancing the thermal temperature difference at the hot end and improving the heating effect. The present invention uses a shifting component to realize the structural change of the vortex tube under two different application requirements of cooling and heating, so as to meet the requirements of summer refrigeration and winter heating. It can replace the traditional air-conditioning compressor and can meet the temperature regulation requirements of large-size and relatively low cold and hot end temperature differences in large-scale enclosed spaces;

[0051] Based on the principle of cold and hot air diversion of the vortex tube, the present invention not only ensures the refrigeration effect through the tapered heat dissipation bellows 10 and the double-layer switchable tube structure, but also enables the heating effect to be obtained, and can meet the general requirements for air temperature regulation in large-scale air-supported membrane structure spaces; it can also utilize the fan air source supporting the air-supported membrane structure building to drive the operation of the vortex tube temperature regulation device, which not only makes full use of the air source, but also can replace the air conditioner to realize temperature regulation and solve the temperature regulation problem in large-scale enclosed indoor spaces;

[0052] In this invention, air enters the slit interlayer 3 through an air intake pipe 6, and then enters the inner layer 1 of the vortex chamber through several flow channels 12 for hot and cold air separation; the installation position of the frustum-shaped valve body can be adjusted by the adjustment rod, thereby adjusting the air intake interval between the frustum-shaped valve body and the heat dissipation bellows, which is convenient to adjust according to actual use needs and improves the ease of use.

[0053] Further optimization of the design: the shifting assembly includes a threaded rod 13 and a first slide groove 14. The threaded rod 13 is fixedly installed on the outer wall of the outer layer 2. The first slide groove 14 is opened laterally at one end of the outer shell 7 near the outer layer 2. Two second slide grooves 15 are opened longitudinally at intervals on the slide groove. Both the first slide groove 14 and the second slide groove 15 are slidably connected to the threaded rod 13. A nut is threadedly connected to the threaded rod 13. By adjusting the position of the threaded rod 13 so that it is in one of the second slide grooves 15, the relative position of the outer shell 7 and the outer layer 2 can be adjusted.

[0054] The scheme is further optimized. The adjusting rod includes a wing plate 16 and a lead screw 17. The wing plate 16 is installed on the end of the end cover 11 away from the outer casing 7 by an extended bolt. There is a gap between the wing plate 16 and the end cover 11.

[0055] The lead screw 17 is threaded onto the end cap 11 and threaded onto the wing plate 16. One end of the lead screw 17 extends into the inner cavity of the outer casing 7 and is fixedly connected to the frustum-shaped valve body. By rotating the lead screw 17, the frustum-shaped valve body is moved back and forth.

[0056] The scheme is further optimized. The frustum-shaped valve body includes a frustum-shaped valve body 18 and a cylindrical connecting block 19. The frustum-shaped valve body 18 extends into the heat dissipation bellows 10. The cylindrical connecting block 19 is fixedly installed on one side of the frustum-shaped valve body 18. One end of the screw 17 is fixedly connected to the cylindrical connecting block 19. The outer diameter of the cylindrical connecting block 19 is adapted to the inner diameter of the sealing ring 9.

[0057] The cylindrical connecting block 19 is a non-tapered cylindrical structure with a width of 15mm, used for the design of a double-layer structure.

[0058] In a further optimized design, a fan blade 20 is rotatably connected to one end of the frustum-shaped valve body 18 that is away from the cylindrical connecting block 19.

[0059] The design is further optimized by setting one end of the heat dissipation corrugated pipe 10 near the outer layer 2 as a small-diameter end and the other end as a large-diameter end. The inner diameter of the small-diameter end is 300mm and the inner diameter of the large-diameter end is 327.5mm. The length of the heat dissipation corrugated pipe 10 is 480mm. The taper of the heat dissipation corrugated pipe 10 is 3 / 100 to improve the energy separation effect.

[0060] The exhaust port is further optimized by including several arc-shaped grooves 21, which are circumferentially and equally spaced on the end cover 11.

[0061] The width of the arc groove 21 is 20mm to 40mm, and the curvature of the arc groove 21 is 60° to 70°. In this embodiment, the width of the arc groove 21 is preferably 30mm, the curvature of the arc groove 21 is preferably 65°, and the number of arc grooves 21 is four.

[0062] The design has been further optimized by installing quick-connect devices 22 on both the intake pipe 6 and the exhaust pipe 8 for quick connection with external pipes, thereby improving the ease of installation.

[0063] The scheme is further optimized. The outer layer 2 and the inner layer 1 are detachably connected by several bolts. Sealing gaskets 23 are provided between the outer layer 2 and the inner layer 1, and between the end cap 11 and the outer shell 7. During the nesting process of the inner layer 1 and the outer layer 2, the connection is achieved by flange connection and four internal hex bolts and nuts. The sealing gaskets 23 are embedded in the grooves between the flanges.

[0064] The design is further optimized so that the nozzle 24 is detachably connected to the cold end outlet 4 via a flange connector. The flange connector allows for detachable connection of the nozzle 24 and other accessories. The split design reduces production difficulty and facilitates transportation and storage.

[0065] In this embodiment, the nozzle 24 is trumpet-shaped and is used to exhaust cold air.

[0066] Further optimization of the design involves integrally molding the heat dissipation corrugated pipe 10 with the outer layer 2, adopting an integrated structure. This reduces structural complexity and minimizes interference from pipe connectors on the internal flow field, thereby reducing interference with energy separation performance.

[0067] The scheme is further optimized so that there are six flow channels 12. The six flow channels 12 are arranged at equal intervals around the circumference, and the flow enters the six tangential flow channels 12 through the slit interlayer 3.

[0068] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to 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 this invention.

[0069] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A large-size low-temperature differential air conditioning vortex tube, characterized in that, include: The vortex chamber includes an inner layer (1) and an outer layer (2). The outer layer (2) is fixedly sleeved outside the inner layer (1), and a slit sandwich (3) is formed between the outer layer (2) and the inner layer (1). The front end of the inner layer (1) is a cold end outlet (4), and the rear end is a hot end outlet (5). An air intake pipe (6) is mounted on the outer layer (2); The outer shell (7) is slidably fitted on the rear side of the outer wall of the outer layer (2); an exhaust pipe (8) is installed on the outer wall of the outer shell (7), and a sealing ring (9) is installed on the inner wall of the outer shell (7). A gear shifting assembly, which is mounted on the outer layer (2) and is used to adjust the relative position of the outer shell (7) and the outer layer (2); A heat dissipation bellows (10) is fixedly installed at the rear end of the outer layer (2) and located inside the outer shell (7); the heat dissipation bellows (10) has a tapered shape. End cap (11), the end cap (11) is installed on the side of the outer shell (7) away from the outer layer (2), and the end cap (11) is provided with an exhaust port; The regulating valve assembly includes an adjusting rod and a frustum-shaped valve body. The adjusting rod is threaded onto the end cap (11), and the frustum-shaped valve body is installed at one end of the adjusting rod and extends into the heat dissipation bellows (10). The inner layer (1) has several flow channels (12), the air inlet pipe (6) and the flow channels (12) are connected to the slit interlayer (3), the outer diameter of the end of the frustum valve body near the adjusting rod and the outer diameter of the end of the heat dissipation bellows (10) away from the outer layer (2) are both adapted to the inner diameter of the sealing ring (9); when the sealing ring (9) moves backward, the frustum valve body and the sealing ring (9) are tightly fitted and sealed, and at the same time there is an air intake gap between the frustum valve body and the heat dissipation bellows (10), at this time it switches to a double-layer structure; when the sealing ring (9) moves forward, the frustum valve body and the sealing ring (9) are separated, and at the same time the frustum valve body and the heat dissipation bellows (10) are tightly fitted, at this time it switches to a single-layer structure.

2. The large-size low-temperature differential air conditioning vortex tube according to claim 1, characterized in that: The shifting assembly includes a threaded rod (13) and a first slide groove (14). The threaded rod (13) is fixedly installed on the outer wall of the outer layer (2). The first slide groove (14) is opened laterally at one end of the outer shell (7) near the outer layer (2). Two second slide grooves (15) are opened longitudinally on the first slide groove (14) at intervals. The first slide groove (14) and the second slide groove (15) are slidably connected to the threaded rod (13). A nut is threaded onto the threaded rod (13).

3. The eddy current tube for large-size low-temperature difference air conditioning according to claim 1, characterized in that: The adjusting rod includes a wing plate (16) and a lead screw (17). The wing plate (16) is installed on the end of the end cover (11) away from the outer shell (7) by an elongating bolt. There is a gap between the wing plate (16) and the end cover (11). The lead screw (17) is threaded onto the end cap (11), and the lead screw (17) is threaded onto the wing plate (16); one end of the lead screw (17) extends into the inner cavity of the outer shell (7) and is fixedly connected to the frustum-shaped valve body.

4. The eddy current tube for large-size low-temperature difference air conditioning according to claim 3, characterized in that: The frustum-shaped valve body includes a frustum-shaped valve body (18) and a cylindrical connecting block (19). The frustum-shaped valve body (18) extends into the heat dissipation bellows (10). The cylindrical connecting block (19) is fixedly installed on one side of the frustum-shaped valve body (18). One end of the screw (17) is fixedly connected to the cylindrical connecting block (19). The outer diameter of the cylindrical connecting block (19) is adapted to the inner diameter of the sealing ring (9).

5. The vortex tube for large-size low-temperature differential air conditioning according to claim 4, characterized in that: The frustum-shaped valve body (18) is rotatably connected to a fan blade (20) at the end away from the cylindrical connecting block (19).

6. The large-size low-temperature differential air conditioning vortex tube according to claim 1, characterized in that: The heat dissipation corrugated pipe (10) has a small diameter end near the outer layer (2) and a large diameter end. The inner diameter of the small diameter end is 300 mm, the inner diameter of the large diameter end is 327.5 mm, and the length of the heat dissipation corrugated pipe (10) is 480 mm.

7. The vortex tube for large-size low-temperature difference air conditioning according to claim 1, characterized in that: The exhaust port includes a plurality of arc-shaped grooves (21), which are circumferentially and equally spaced on the end cap (11); The width of the arc groove (21) is 20mm to 40mm, and the arc of the arc groove (21) is 60° to 70°.

8. The vortex tube for large-size low-temperature difference air conditioning according to claim 1, characterized in that: Both the intake pipe (6) and the exhaust pipe (8) are equipped with quick-connect devices (22).

9. The eddy current tube for large-size low-temperature differential air conditioning according to claim 1, characterized in that: The outer layer (2) and the inner layer (1) are detachably connected by several bolts. Sealing gaskets (23) are provided between the outer layer (2) and the inner layer (1) and between the end cap (11) and the outer shell (7).

10. The large-size low-temperature differential air conditioning vortex tube according to claim 1, characterized in that: The cold end outlet (4) is detachably connected to a nozzle (24) via a flange connector.

Images