A vortex tube cooling control cabinet or PLC cabinet

Abstract

This application relates to a vortex tube cooling control cabinet or PLC cabinet, belonging to the technical field of power distribution cabinets. The cabinet comprises a control cabinet and an air supply device. A vortex tube is disposed between the air supply device and the control cabinet. The cold air flow channel of the vortex tube communicates with the control cabinet. An exhaust port is provided at the top of the control cabinet, and a filter is provided to cover the exhaust port. A purge line is provided for the hot air flow channel of the vortex tube. The air outlet of the purge line is parallel to the filter and adheres to the filter surface. This application has the effect of reducing the temperature inside the cabinet.

Description

Technical Field

[0001] The present application relates to the technical field of power distribution cabinets, and in particular to a vortex tube cooling control cabinet or a PLC cabinet. Background Art

[0002] As the industrial industry becomes more and more developed, power distribution cabinets, electrical cabinets, switch cabinets, and PLC cabinets are increasingly used in industrial sites. However, during use, due to various restrictions on the environment, temperature, and installation location, high ambient temperature, heat generated by components inside the cabinet, limited ventilation, and narrow installation locations often cause high temperatures inside the cabinet, causing electrical equipment to malfunction and resulting in accidents.

[0003] Although some process designs have installed dry air or nitrogen for purge cooling, they are limited by the high inlet air temperature, so cooling cannot be achieved or cooling is limited, which cannot completely solve the reality of high temperature in the cabinet. Summary of the Invention

[0004] In order to reduce the temperature inside the cabinet, the present application provides a vortex tube cooling control electrical cabinet or PLC cabinet.

[0005] The present application provides a vortex tube cooling control cabinet or PLC cabinet that adopts the following technical solutions:

[0006] A vortex tube cooling control electrical cabinet or PLC cabinet includes a control cabinet and an air supply device, a vortex tube is arranged between the air supply device and the control cabinet, the cold air flow channel of the vortex tube is connected to the control cabinet, an exhaust port is opened on the upper part of the control cabinet, and a filter is provided to cover the exhaust port; a purge pipeline is provided in the hot air flow channel of the vortex tube, and the air outlet end of the purge pipeline is parallel to the filter and fits the surface of the filter.

[0007] Optionally, the exhaust port is opened on the top wall, side wall and cabinet door of the control cabinet and is close to each other. The purge pipeline includes a first tube body connected to the vortex tube and a second tube body connected to the first tube body. The second tube body extends toward the top along the side wall of the control cabinet and bends toward the top. A purge port is opened on the part of the second tube body corresponding to the filter, and the axis of the purge port is parallel to the filter; it also includes a guide member, which is used to guide the air after purging the filter to the filter on the cabinet door to purge the filter on the cabinet door.

[0008] Optionally, the guide member includes a guide pipe arranged on the top of the control cabinet, the guide pipe is L-shaped, the axes of the tube bodies on both sides of the guide pipe are parallel to the control cabinet top filter and the cabinet door filter respectively, the guide pipe is flat-mouthed, and the width of the guide pipe is greater than the width of the filter.

[0009] Optionally, an arc-shaped chamfer is provided at the bending portion of the guide tube.

[0010] Optionally, the second tube body is located in the middle of the top wall and side wall filter of the control cabinet, the purge port is located on both sides of the second tube body, and a cooling pipe is provided at the bottom of the second tube body. The cooling pipe is arranged along the second tube body and the first tube body and extends to the vortex tube. The cooling pipe is attached to the second tube body and the first tube body. An air inlet is provided on the surface of the cooling pipe facing the filter. After the cold air in the control cabinet is discharged through the filter, it enters the cooling pipe through the air inlet to cool the second tube body and the first tube body.

[0011] Optionally, the first tube body and the vortex tube are connected through a metal bellows, the second tube body is slidably arranged on the control cabinet, the second tube body slides in a direction parallel to the width of the control cabinet, and a driving member for driving the second tube body to slide is provided on the control cabinet.

[0012] Optionally, the filter is rotatably arranged in the exhaust port, the rotation axis of the filter is located at the center line of the filter, and a stabilizing member is also included, and the stabilizing member is used to make the filter lie flat in the exhaust port.

[0013] Optionally, the stabilizing member includes a stabilizing block arranged in the filter frame, the side wall of the exhaust port is provided with a plug-in slot for stable quick plug-in, and a spring is provided in the filter frame for driving the stabilizing block to slide into the plug-in slot.

[0014] Optionally, the end of the air guide pipe facing the cabinet door is flat and parallel to the bottom of the cabinet door.

[0015] Optionally, the cooling pipe includes a smooth portion with an air inlet and a spiral portion connected to the smooth portion, and the spiral portion is wound around the second tube body and the first tube body and fits with the second tube body and the first tube body.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. During the operation of the control cabinet, its temperature gradually increases. At this time, the air supply device supplies compressed gas into the vortex tube. The compressed gas rotates in the vortex tube, the temperature of the gas on the outside increases, and the temperature of the gas on the inside decreases. The hot air inside enters the control cabinet through the cold air flow channel to cool the components in the control cabinet. Under the action of the vortex tube, the intake air temperature is cooled, thereby facilitating the cooling of the control cabinet. At the same time, the vortex tube has the advantages of low cost, simplicity, high efficiency and reliability of the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a vortex tube cooling control cabinet or PLC cabinet according to an embodiment of the present application;

[0019] Figure 2This is a schematic structural diagram of a flow guide tube in a vortex tube cooling control cabinet or a PLC cabinet according to an embodiment of the present application;

[0020] Figure 3 This is a cross-sectional view of a control cabinet door in a vortex tube cooling control cabinet or a PLC cabinet according to an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the structure of a cooling pipe in a vortex tube temperature control cabinet or a PLC cabinet according to an embodiment of the present application;

[0022] Figure 5 yes Figure 3 Enlarged schematic diagram of part A.

[0023] Explanation of reference numerals: 1, control cabinet; 2, vortex tube; 3, cold air flow channel; 4, filter screen; 5, hot air flow channel; 6, purge line; 61, first tube body; 62, second tube body;

[0024] 7. Purge port; 8. Draft tube;

[0025] 9. Cooling pipe; 91. Smooth portion; 92. Spiral portion;

[0026] 10. Air inlet; 11. Metal bellows; 12. Drive motor; 13. Reciprocating screw; 14. Stabilizer block; 15. Spring. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-5 This application is described in further detail.

[0028] The embodiment of the present application discloses a vortex tube cooling control cabinet or PLC cabinet. Figure 1 The vortex tube cooling control cabinet or PLC cabinet includes a control cabinet 1 and an air supply device. A vortex tube 2 is arranged between the air supply device and the control cabinet 1. The air supply device is used to supply dry and clean pressurized air or nitrogen. The cold air flow channel 3 of the vortex tube 2 is connected to the control cabinet 1. An exhaust port is opened on the upper part of the control cabinet 1, and a filter 4 is provided to cover the exhaust port; the hot air flow channel 5 of the vortex tube 2 is provided with a purge pipeline 6, and the air outlet end of the purge pipeline 6 is parallel to the filter 4 and fits on the surface of the filter 4.

[0029] During the operation of the control cabinet 1, its temperature gradually increases. At this time, the air supply device supplies compressed gas into the vortex tube 2. The compressed gas rotates in the vortex tube 2, the temperature of the outer gas increases, and the temperature of the inner gas decreases. The hot air inside enters the control cabinet 1 through the cold air flow channel 3 to cool the components in the control cabinet 1. Under the action of the vortex tube 2, the intake air temperature is cooled, thereby facilitating the cooling of the control cabinet 1. At the same time, the vortex tube 2 has the advantages of low cost, simplicity, high efficiency and reliability of the process flow.

[0030] Reference Figure 1 and Figure 2 In the embodiment of the present application, the exhaust ports are opened on the top wall, side wall and cabinet door of the control cabinet 1 and are close to each other. The exhaust ports are opened on the top wall, side wall and cabinet door, so that the cold air can be discharged from all directions after flowing in the control cabinet 1. At the same time, after the cold air absorbs heat, the temperature rises gradually, so that it is convenient to be discharged from the exhaust port; the purge pipeline 6 includes a first tube body 61 connected to the vortex tube 2 and a second tube body 62 connected to the first tube body 61. The second tube body 62 extends toward the top along the side wall of the control cabinet 1 and bends toward the top. The part of the second tube body 62 corresponding to the filter screen 4 is provided with a purge port 7, and the axis of the purge port 7 is parallel to the filter screen 4; it also includes a flow guide. The flow element is used to guide the air after the filter 4 is purged to the filter 4 on the cabinet door to purge the filter 4 on the cabinet door; the air discharged from the hot air flow channel 5 of the vortex tube 2 passes through the first tube body 61 and the second tube body 62 and is removed through the purge port 7. The removed air acts on the surface of the filter 4 to remove impurities attached to the surface of the filter 4, thereby providing a ventilation effect for the control cabinet 1 and further reducing the possibility of high temperature of the control cabinet 1; further, the air temperature of the hot air flow channel 5 of the vortex tube 2 can reach 120°, so the air heats and softens the impurities on the filter 4. After the impurities are heated and softened, their adhesion decreases, thereby facilitating the air to remove impurities on the filter 4.

[0031] Reference Figure 1 and Figure 2 In the embodiment of the present application, the guide member includes a guide pipe 8 arranged on the top of the control cabinet 1. The guide pipe 8 is L-shaped, and the axes of the pipe bodies on both sides of the guide pipe 8 are parallel to the top filter 4 of the control cabinet 1 and the cabinet door filter 4 respectively. The guide pipe 8 is flat-mouthed, and the width of the guide pipe 8 is greater than the width of the filter 4; the air discharged through the purge port 7 enters the guide pipe 8 and is discharged through the backflow pipe. The air discharged through the guide pipe 8 purges the filter 4 on the cabinet door, and removes impurities from the filter 4 on the cabinet door. The operation is simple and convenient.

[0032] Reference Figure 1 and Figure 2 Furthermore, the bend of the guide tube 8 is provided with an arc-shaped chamfer; after the purge air enters the guide tube 8, it flows along the arc-shaped chamfer, reducing the possibility of the purge air impacting the bend of the guide tube 8 and flowing back, thereby facilitating the removal of impurities on the filter 4. Furthermore, the end of the guide tube 8 facing the cabinet door is flat and parallel to the bottom of the cabinet door. This flat shape of the end of the guide tube 8 increases the pressure of the purge air during removal, thereby increasing the purge pressure on impurities and facilitating the removal of impurities.

[0033] Reference Figure 3 and Figure 4, because the air temperature in the hot air flow channel 5 of the vortex tube 2 is high, it is easy to cause the temperature of the first tube body 61 and the second tube body 62 to rise, so that the first tube body 61 and the second tube body 62 have certain safety hazards. Therefore, in the embodiment of the present application, the second tube body 62 is located in the middle of the filter screen 4 on the top wall and side wall of the control cabinet 1, the purge port 7 is located on both sides of the second tube body 62, and a cooling pipe 9 is provided at the bottom of the second tube body 62. The cooling pipe 9 is arranged along the second tube body 62 and the first tube body 61 and extends to the vortex tube 2. The cooling pipe 9 is attached to the second tube body 62 and the first tube body 61 to cool An air inlet 10 is provided on the surface of the tube 9 facing the filter 4. After the cold air in the control cabinet 1 is discharged through the filter 4, it enters the cooling pipe 9 through the air inlet 10 to cool the second tube body 62 and the first tube body 61; after the cooling gas cools the components in the control cabinet 1, it moves out through the exhaust port, and the air discharged from the exhaust port enters the cooling pipe 9 through the air inlet 10 and flows along the cooling pipe 9. Since the cooling pipe 9 is attached to the second tube body 62 and the first tube body 61, the second tube body 62 and the first tube body 61 are cooled, thereby improving the safety of the first tube body 61 and the second tube body 62.

[0034] Reference Figure 3 and Figure 4 In order to improve the cooling effect of the cooling pipe 9 on the first tube body 61 and the second tube body 62, the cooling pipe 9 includes a smooth portion 91 with an air inlet 10 and a spiral portion 92 connected to the smooth portion 91. The spiral portion 92 is wound around the second tube body 62 and the first tube body 61 and fits with the second tube body 62 and the first tube body 61; the spiral portion 92 is wound around the second tube body 62 and the first tube body 61, thereby increasing the contact area between the cooling pipe 9 and the second tube body 62 and the first tube body 61, thereby improving the cooling effect of the cooling pipe 9 on the second tube body 62 and the first tube body 61.

[0035] Reference Figure 3 and Figure 5After the filter screen 4 is blown with hot air, some impurities may remain, and some impurities are likely to appear on the back of the filter screen 4. In order to facilitate the cleaning of the above impurities, in the embodiment of the present application, the first tube body 61 and the vortex tube 2 are connected through a metal bellows 11, and the second tube body 62 is slidably arranged on the control cabinet 1. The second tube body 62 slides in a direction parallel to the width of the control cabinet 1. The control cabinet 1 is provided with a driving member for driving the second tube body 62 to slide. The driving member includes a driving motor 12 and a reciprocating screw 13 arranged on the side wall of the control cabinet 1. The reciprocating screw 13 is coaxially arranged on the output shaft of the driving motor 12. A mounting block is fixedly provided on the second tube body 62, and the mounting block is threadedly connected to the reciprocating screw 13. When cleaning residual impurities, start the drive motor 12, and the drive motor 12 drives the reciprocating screw 13 to rotate. The rotation of the reciprocating screw 13 drives the mounting block to move, and the movement of the mounting block drives the second tube body 62 to move horizontally, so that the second tube body 62 is separated from the filter screen 4, and then the impurities on the filter screen 4 are wiped, thereby facilitating the removal of impurities on the filter screen 4.

[0036] Reference Figure 3 and Figure 5 In order to further improve the cleaning effect of the filter 4, the filter 4 is rotatably arranged in the exhaust port, and the rotating axis of the filter 4 is located at the center line of the filter 4. It also includes a stabilizing member, which is used to make the filter 4 flat in the exhaust port. The stabilizing member includes a stabilizing block 14 arranged in the frame of the filter 4. The side wall of the exhaust port is provided with a plug-in slot for stable quick plug-in, and a spring 15 is provided in the frame of the filter 4 to drive the stabilizing block 14 to slide into the plug-in slot; to perform deep cleaning of the filter 4, the stabilizing block 14 is dialed to remove the stabilizing block 14 from the plug-in slot, and then the filter 4 is rotated. The filter 4 rotates 180°, which is convenient for cleaning the surface of the filter 4, and the filter 4 is deeply cleaned.

[0037] The implementation principle of a vortex tube cooling control cabinet or PLC cabinet in the embodiment of the present application is as follows:

[0038] During the operation of the control cabinet 1, its temperature gradually increases. At this time, the air supply device supplies compressed gas into the vortex tube 2. The compressed gas rotates in the vortex tube 2, the temperature of the outer gas increases, and the temperature of the inner gas decreases. The hot air inside enters the control cabinet 1 through the cold air flow channel 3 to cool the components in the control cabinet 1. Under the action of the vortex tube 2, the intake air temperature is cooled, which facilitates the cooling of the control cabinet 1. At the same time, the vortex tube 2 has low cost, simplicity and high efficiency, and reliability of the process flow. The air discharged from the hot air flow channel 5 of the vortex tube 2 passes through the first tube body 61 and the second tube body 62 and is removed through the purge port 7. The removed air acts on the surface of the filter 4 to remove impurities attached to the surface of the filter 4, thereby providing a ventilation effect for the control cabinet 1 and further reducing the possibility of high temperature in the control cabinet 1.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A vortex tube cooling control cabinet or PLC cabinet, characterized by: The invention comprises a control cabinet (1) and an air supply device, wherein a vortex tube (2) is provided between the air supply device and the control cabinet (1), a cold air flow channel (3) of the vortex tube (2) is connected to the control cabinet (1), an exhaust port is provided on the upper portion of the control cabinet (1), and a filter (4) is provided to cover the exhaust port; a purge line (6) is provided in the hot air flow channel (5) of the vortex tube (2), and an air outlet end of the purge line (6) is parallel to the filter (4) and is attached to the surface of the filter (4); The exhaust ports are provided on the top wall, side walls and cabinet door of the control cabinet (1) and are close to each other. The purge pipeline (6) includes a first tube body (61) connected to the vortex tube (2) and a second tube body (62) connected to the first tube body (61). The second tube body (62) extends toward the top along the side wall of the control cabinet (1) and bends toward the top. The second tube body (62) is provided with a purge port (7) at a portion corresponding to the filter screen (4) on the top wall and the side wall. The axis of the purge port (7) is parallel to the corresponding filter screen (4). The air guide is also provided. The air guide is used to guide the air after the filter screen (4) on the top wall of the control cabinet (1) is purged to the filter screen (4) on the cabinet door, so as to purge the filter screen (4) on the cabinet door. The flow guide member comprises a flow guide pipe (8) arranged on the top of the control cabinet (1), the flow guide pipe (8) is L-shaped, and the axes of the pipe bodies on both sides of the flow guide pipe (8) are respectively parallel to the filter screen (4) on the top wall of the control cabinet (1) and the filter screen (4) on the cabinet door; A cooling pipe (9) is provided at the bottom of the second tube body (62), and the cooling pipe (9) is arranged along the second tube body (62) and the first tube body (61) and extends to the vortex tube (2). The cooling pipe (9) is attached to the second tube body (62) and the first tube body (61), and an air inlet (10) is provided on the surface of the cooling pipe (9) facing the filter (4) on the top wall and the side wall. After the cold air in the control cabinet (1) is discharged through the filter (4), it enters the cooling pipe (9) through the air inlet (10) to cool the second tube body (62) and the first tube body (61).

2. The scroll tube cooling control cabinet or PLC cabinet according to claim 1, characterized in that: The guide tube (8) is flat-mouthed, and the width of the guide tube (8) is greater than the width of the filter screen (4).

3. The scroll tube cooling control cabinet or PLC cabinet according to claim 2, characterized in that: The bend of the flow guide tube (8) is provided with an arc chamfer.

4. The scroll tube cooling control cabinet or PLC cabinet according to claim 1, characterized in that: The second tube body (62) is located in the middle of the filter screen (4) on the top wall and the side wall of the control cabinet (1), and the purge port (7) is located on both sides of the second tube body (62).

5. The scroll tube cooling control cabinet or PLC cabinet according to claim 4, characterized in that: The first tube body (61) and the vortex tube (2) are connected via a metal bellows (11); the second tube body (62) is slidably arranged on the control cabinet (1); the second tube body (62) slides in a direction parallel to the width of the control cabinet (1); and a driving member for driving the second tube body (62) to slide is provided on the control cabinet (1).

6. The scroll tube cooling control cabinet or PLC cabinet according to claim 5, characterized in that: The filter screen (4) is rotatably arranged in the exhaust port, the rotation axis of the filter screen (4) is located at the center line of the filter screen (4), and further comprises a stabilizing member, which is used to make the filter screen (4) flat in the exhaust port.

7. The scroll tube cooling control cabinet or PLC cabinet according to claim 6, characterized in that: The stabilizing member comprises a stabilizing block (14) arranged in the frame of the filter (4); a plug-in slot for stabilizing quick plug-in is provided on the side wall of the exhaust port; and a spring (15) for driving the stabilizing block (14) to slide into the plug-in slot is provided in the frame of the filter (4).

8. The scroll tube cooling control cabinet or PLC cabinet according to claim 2, characterized in that: The end of the guide pipe (8) facing the cabinet door is flat and parallel to the bottom of the cabinet door.

9. The scroll tube cooling control cabinet or PLC cabinet according to claim 4, characterized in that: The cooling pipe (9) comprises a smooth portion (91) with an air inlet (10) and a spiral portion (92) connected to the smooth portion (91); the spiral portion (92) is wound around the second tube body (62) and the first tube body (61) and is in contact with the second tube body (62) and the first tube body (61).

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