TW201702544A - Vortex tube device - Google Patents

Abstract

A vortex tube device is provided, including a main body, a hot end member, a cold end member, and a first guiding element. The man body has a first inlet and an extending portion extending along a longitudinal axis of the vortex tube device. The hot end member is connected to the extending portion, the cold end member is connected to the main body, and the hot and cold end members are disposed on opposite sides of the main body. An air flows into the main body via the first inlet and is exhausted through the hot and cold end members. The first guiding element is disposed in the main body, having a first through hole, a first surface, and several channels formed on the first surface and surrounding the first through hole. The channels respectively have a slope for guiding the air into the extending portion.

Description

Vortex tube device

The present invention relates to a vortex tube device, and more particularly to a vortex tube device provided with a flow guiding element.

Generally, the method used in the refrigerating air-conditioning system is a compression type steam cycle, which is characterized in that the refrigerant is used to evaporate and absorb heat, and the compressor is used to liquefy the refrigerant vapor and then circulate it. In addition, the effect of freezing can also be produced by using a vortex tube, in which the vortex tube does not need to be provided with fins and has low failure, and does not require heat time or electric drive.

Vortex tubes can be used in many places. As long as high-pressure air is used as a gas source, cold air or hot air can be generated. Figure 1 is a typical vortex tube design in which a cold air outlet C and a hot air outlet H are respectively disposed at both ends of the vortex tube, and high pressure air can be injected into the vortex tube from the nozzle N during operation (as shown in Fig. 1). In the arrow A in the middle), since the pressure in the tube is close to the atmospheric pressure, the air leaving the nozzle N will expand rapidly, and a forced vortex is formed in the vortex tube, and the air near the center of the vortex tube is approached. The air in the outer portion is operated to lower its own temperature; conversely, the temperature of the air near the outer portion of the vortex tube rises. As shown in Fig. 1, in a typical vortex tube, the portion near the center of the vortex tube is cold air, and the portion near the outside of the turbine tube is hot air, wherein cold air and hot air can be respectively from both ends of the vortex tube. The cold air outlet C and the hot air outlet H are each separated. However, the conventional vortex tube device must separately prepare compressed gas or air-pumped to generate high-pressure gas, which is costly and is not conducive to miniaturization of the device.

One embodiment of the present invention provides a vortex tube device including a body, a hot end member, a cold end member, and a first flow guiding member. The body has a first air inlet and an elongated extension, wherein the extension extends toward one of the longitudinal axes of the vortex tube device. The hot end member connects the extension, the cold end member connects to the body, wherein the cold end member and the hot end member are located on opposite sides of the body. A gas enters the body from the first air inlet and exits the vortex tube device via the cold end member and the hot end member. The first flow guiding element is disposed in the body, and has a first through hole, a first surface, and a plurality of channels, wherein the channel is formed on the first surface and surrounds the first through hole, and the bottom of the channel is respectively formed with a slope For guiding the gas into the extension of the body.

In an embodiment, the body further has a second air inlet, and the gas enters the body from the first and second air inlets and is guided into the extension via the foregoing passage.

In an embodiment, an obtuse angle is formed between the first and second air inlets.

In one embodiment, the obtuse angle is between 100 and 150 degrees.

In one embodiment, the vortex tube device further includes a second flow guiding element connecting the extension portion and the first flow guiding element, and the second flow guiding element has a second surface, the first and second surfaces being perpendicular to the foregoing The longitudinal axis direction and abut each other.

In an embodiment, the second flow guiding element has a second pass The hole communicates with the first through hole, and the second through hole forms a diverging structure toward the hot end member.

In one embodiment, the channels are radially arranged.

In one embodiment, each of the channels has an inlet end and an outlet end. The gas enters the channel from the inlet end and exits the channel via the outlet end, wherein the width of the inlet end is greater than the width of the outlet end.

In one embodiment, the hot end member is slidable relative to the body in the direction of the longitudinal axis.

In one embodiment, the hot end member has a plurality of air holes, and a portion of the gas is discharged from the vortex tube device via the air holes.

The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims.

10‧‧‧ Ontology

11‧‧‧First air inlet

12‧‧‧Second air inlet

13‧‧‧Extension

131‧‧‧ inner wall

14‧‧‧Connected holes

20‧‧‧First flow guiding element

21‧‧‧ first surface

22‧‧‧ channel

221‧‧‧Bevel

222‧‧‧ entrance end

223‧‧‧export end

23‧‧‧First through hole

30‧‧‧hot end outlet components

31‧‧‧ chamber

32‧‧‧ stomata

40‧‧‧Second flow guiding element

41‧‧‧ second surface

42‧‧‧Second through hole

50‧‧‧Cold end outlet member

100‧‧‧Vortex tube device

C‧‧‧Cold air outlet

H‧‧‧hot air outlet

L‧‧‧ center line

N‧‧‧ nozzle

A, A1, A2, A3‧‧‧ arrows

D, d‧‧‧ width

1 is a schematic view showing a conventional vortex tube; 2A and 2B are views showing an exploded view of a vortex tube device according to an embodiment of the present invention; and FIGS. 3A and 3B are perspective views showing an assembled vortex tube device according to an embodiment of the present invention; 3C is a schematic cross-sectional view showing a vortex tube device according to an embodiment of the present invention; FIG. 3D is a view showing a second through hole in the center of the second flow guiding member guided by a slope of the bottom of the gas transmission passage; FIG. 4A is a view showing the present invention; A perspective view of the first flow guiding element of the embodiment; and FIGS. 4B and 4C are schematic views showing different viewing angles of the first flow guiding element in FIG. 4A.

The preferred embodiment of the invention is described in conjunction with the drawings.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is for the purpose of illustration and not limitation.

First, please refer to FIGS. 2A, 2B and 3A, 3B. The vortex tube device 100 according to an embodiment of the present invention is mainly installed in a notebook computer, a desktop computer or other various types of electronic devices to replace A conventional cooling fan is used to dissipate heat from electronic components inside an electronic device. The vortex tube device 100 includes a body 10, a first flow guiding member 20, a hot end member 30, a second flow guiding member 40, and a cold end member 50. It should be understood that the body 10, the first flow guiding element 20, the hot end member 30, the second flow guiding element 40, and the cold end member 50 are all hollow structures, wherein the body 10 has a first air inlet 11 and a second The air inlet 12, an elongated extension 13 and a communication hole 14 extend in the longitudinal direction (X-axis direction) of the vortex tube device 100. In addition, the hot end member 30 is inserted into one end of the extending portion 13, and a cavity 31 is formed inside the hot end member 30, and the chamber 31 communicates with the communication hole 14 of the body 10. In the present embodiment, the hot end member 30 is slidable relative to the body 10 in the longitudinal axis direction (X-axis direction) of the vortex tube device 100, whereby the hot end member 30 and the cold end member 50 can be adjusted and controlled. Gas temperature and flow rate.

The first flow guiding element 20 and the second flow guiding element 40 are mainly used to guide the gas injected from the first and second air inlets 11 and 12 to the body 10 . In the extending portion 13, wherein the first flow guiding member 20 has a first surface 21, the first surface 21 is perpendicular to the longitudinal axis direction (X-axis direction) of the vortex tube device 100, and a plurality of the first surface 21 are formed on the first surface 21. a recessed and radially arranged channel 22; the second flow guiding element 40 connects the first flow guiding element 20 with the extension 13 of the body 10 and has a second surface 41, and the second surface 41 is also perpendicular to the vortex tube In the longitudinal direction of the device 100 (X-axis direction), the first and second surfaces 21 and 41 abut each other during assembly; as shown in FIGS. 2A and 2B, the first flow guiding element 20 has a first The through hole 23, and the second flow guiding element 40 has a second through hole 42. When assembled, the first and second flow guiding elements 20, 40 are received in the body 10, and the first and second through holes 23, 42 communicates with the communication hole 14 of the body 10. In one embodiment, the first and second flow guiding members 20, 40 may be integrated into a single member and fabricated in an integrally formed manner, thereby saving manufacturing and assembly costs.

As can be seen from the figures 3A and 3B, this embodiment is set by The first air inlet 11 and the second air inlet 12 can simultaneously inject two gases into the body 10, wherein an obtuse angle θ is formed between the first and second air inlets 11, 12, and the obtuse angle θ ranges from about 100. ~150 degrees (for example, 120 degrees), but the number of inlets and the angle between them are not limited to this. As described above, the airflow introduced through the first and second air inlets 11, 12 can produce a superimposed effect to increase the overall intake pressure value, so the present invention is compared with the vortex tube design of the conventional single air inlet. Can effectively reduce the pressure requirements of the input gas. For example, when more than two air inlets are used, it is not necessary to additionally prepare compressed gas or air pumping to generate high-pressure gas, and vice versa, using a ready-made cooling fan inside the electronic device as a gas source, thus Not only can it significantly reduce costs, but it can also help To the miniaturization of electronic devices.

Please refer to the 3C and 3D diagrams together. The 3C figure is the same. A schematic cross-sectional view of the vortex tube device of the first embodiment, after the gas is simultaneously introduced into the body 10 via the first and second air inlets 11, 12 (as indicated by an arrow A1 in the 3C and 3D drawings), the first diversion can be performed. The passage 22 on the member 20 is guided to the second through hole 42 in the center of the second flow guiding member 40, and then guided through the diverging second through hole 42 to the inner wall 131 of the extending portion 13 to form a vortex. When the airflow continues to move in the direction of the hot end member 30 (X-axis direction) and passes through the communication hole 14 of the body 10 to reach the chamber 31 of the hot end member 30, a part of the gas (hot air) passes from the chamber 31 via the hot end. The air vent 32 on the member 30 exits the vortex tube device 100 (as indicated by arrow A2 in Fig. 3C), and another portion of the gas (cold air) near the center of the vortex tube device 100 forms a cold vortex returning from the hot end, and Flowing through the communication hole 14, the second through hole 42 and the first through hole 23 in the -X axis direction, and finally discharging the vortex tube device 100 via the cold end member 50 connected to the first flow guiding member 20 (eg In Fig. 3C, the arrow A3 is shown) for cooling and cooling of a heat source or an electronic component inside the electronic device.

As can be seen from the 3D figure, the aforementioned first flow guiding element 20 A slope 221 is formed at the bottom of the passage 22. The gas injected from the first and second air inlets 11, 12 can be guided through the slope 221 at the bottom of the passage 22 to enter the second through hole 42 in the center of the second flow guiding member 40. Since the second through hole 42 in the embodiment forms a diverging structure toward the hot end member 30 (X-axis direction), the gas in the second through hole 42 can be guided to the body 10. The inner wall 131 of the extending portion 13 is configured to allow gas to interact with the inner wall 131 of the extending portion 13 to form a thermal vortex, thereby providing The efficiency of the vortex tube device 100.

Please refer to the 4A~4C diagram again, the first diversion in this embodiment. The element 20 is formed with six channels 22 of different depths and arranged radially around the first through holes 23, but the length, width and depth of the channels 22 can still be adjusted to have the same or different according to design requirements. Dimensions, wherein the gas injected from the first and second air inlets 11, 12 can be guided through the inclined surface 221 at the bottom of the channels 22 to enter the second through hole 42 in the center of the second flow guiding element 40; as shown in FIG. 4C As shown, each of the channels 22 has an arc-shaped inlet end 222 and an outlet end 223. The gas outside the second flow guiding element 40 enters the channel 22 via the inlet end 222 and then passes through the inside of the second flow guiding element 40. The exit end 223 exits the passage 22, and the width D of the aforementioned inlet end 222 is greater than the width d of the outlet end 223, thereby facilitating the formation of eddy currents. Moreover, as can be seen from FIG. 4C, each of the channels 22 in this embodiment has a center line L that does not intersect at the same point and is tangent to an inscribed circle.

In summary, the present invention provides more than two air inlets. Two airflows can be introduced into the body at the same time, and the introduced airflow can generate a superimposed effect to increase the overall intake pressure value. Therefore, the present invention can effectively reduce the pressure of the input gas compared with the vortex tube design of the conventional single air inlet. Demand, in turn, can significantly reduce costs and help to achieve miniaturization of electronic devices. In addition, the present invention can form a plurality of radially arranged channels on the surface of the first flow guiding element, and simultaneously design with two or more air inlets, thereby effectively guiding the gas into the body to generate eddy current, thereby improving The overall efficiency of the vortex tube device.

Although the invention has been disclosed in the preferred embodiments, it is not The scope of the present invention is defined by the scope of the appended claims, and the scope of the present invention is defined by the scope of the appended claims. Prevail.

10‧‧‧ Ontology

11‧‧‧First air inlet

12‧‧‧Second air inlet

13‧‧‧Extension

131‧‧‧ inner wall

14‧‧‧Connected holes

20‧‧‧First flow guiding element

22‧‧‧ channel

23‧‧‧First through hole

30‧‧‧hot end outlet components

31‧‧‧ chamber

32‧‧‧ stomata

40‧‧‧Second flow guiding element

41‧‧‧ second surface

42‧‧‧Second through hole

50‧‧‧Cold end outlet member

100‧‧‧Vortex tube device

A1, A2, A3‧‧‧ arrows

Claims (10)

A vortex tube device comprising: a body having a first air inlet and an elongated extension, wherein the extension extends toward a longitudinal axis of the vortex tube device; and a hot end member connecting the extension a cold end member coupled to the body, wherein the cold end member and the hot end member are located on opposite sides of the body, a gas entering the body from the first air inlet, and the cold end member and the hot end member Discharging the vortex tube device; and a first flow guiding element disposed in the body, having a first through hole and a plurality of channels, wherein the channels surround the first through hole, and the channels are respectively formed with a slope And guiding the gas into the extension of the body. The vortex tube device of claim 1, wherein the body further has a second air inlet, and the gas enters the body from the first and second air inlets, and is guided into the body through the channels. Extension. The vortex tube device of claim 2, wherein an obtuse angle is formed between the first and second air inlets. The vortex tube device of claim 3, wherein the obtuse angle is between 100 and 150 degrees. The vortex tube device of claim 1, wherein the vortex tube device further comprises a second flow guiding element connecting the extension portion and the first flow guiding element, and the first and second flow guiding The components abut each other. The vortex tube device of claim 5, wherein the second flow guiding member has a second through hole communicating with the first through hole, and the second through hole is formed toward the hot end member. A gradually expanding structure. The vortex tube device of claim 1, wherein the channels each have a center line, and the center lines do not intersect at the same point. The vortex tube device of claim 7, wherein each of the passages has an inlet end and an outlet end, and the gas enters the passage from the inlet end and exits the passage via the outlet end, wherein the inlet The width of the end is greater than the width of the outlet end. The vortex tube device of claim 1, wherein the hot end member is slidable relative to the body in the longitudinal direction. The vortex tube device of claim 1, wherein the hot end member has a plurality of air holes through which a portion of the gas is discharged from the vortex tube device.