A switch cabinet anti-condensation device

Abstract

The present invention relates to the technical field of switch cabinets, and mainly to an anti-condensation device for a switch cabinet, comprising a cabinet body and a cabinet door connected to the outer end of the cabinet body, and also comprising an inner liner frame fixed in the cabinet body, a buffer cavity being separated by the inner liner frame and the cabinet body, electrical components being installed in the inner liner frame, an air suction component being installed on the top of the inner liner frame, and the gas in the inner liner frame is sucked into the buffer cavity through the air suction component; and a ventilation frame fixed at the bottom of the inner liner frame, a ventilation unit being installed in the ventilation frame, and gas circulation inside and outside the cabinet is achieved through the ventilation unit; and a dehumidification mechanism installed in the ventilation frame. The present invention optimizes the structure of a traditional switch cabinet, and utilizes a designed inner liner frame to form a buffer cavity, so as to prevent internal condensation from affecting the components installed inside. At the same time, an air suction component and a ventilation unit are provided in the switch cabinet to cooperate with each other, so that the gas in the buffer cavity can circulate with the external gas, thereby reducing the temperature difference between the inside and outside of the switch cabinet and reducing the generation of condensation.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinets, and in particular to an anti-condensation device for a switch cabinet. Background Art

[0002] A switchgear is an electrical device whose main function is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and energy conversion in the power system.

[0003] Existing switch cabinets are all metal cabinets, and the interior is used to install electrical components. The work of the electrical components will generate heat inside. When the outside temperature is low, it is easy to cause a large temperature difference between the inside and outside. Once the humidity of the gas inside the cabinet is too high, condensation is easy to appear on the inner wall of the cabinet;

[0004] The existing patent document CN104682222A discloses a solar anti-condensation device for a switch cabinet. In this solution, a traditional heating method is used to prevent condensation. However, this method cannot judge the condensation caused by the large temperature difference between the inside and outside of the cabinet, resulting in the inability to eliminate condensation. Because the humidity will decrease after condensation occurs when the water vapor content in the cabinet remains unchanged. Moreover, if the temperature in the cabinet is too high for a long time, the equipment in the cabinet will accelerate aging. Summary of the invention

[0005] The object of the present invention is to provide a switch cabinet anti-condensation device to solve the problem proposed in the above background technology that using heating to remove moisture in the gas will lead to high internal temperature and a series of adverse effects.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a switch cabinet anti-condensation device, comprising a cabinet body and a cabinet door connected to the outer end of the cabinet body, and also comprising an inner liner frame fixed in the cabinet body, a buffer cavity is separated by the inner liner frame and the cabinet body, electrical components are installed in the inner liner frame, an air suction component is installed on the top of the inner liner frame, and the gas in the inner liner frame is drawn into the buffer cavity through the air suction component; and a ventilation frame fixed to the bottom of the inner liner frame, a ventilation unit is installed in the ventilation frame, and gas circulation inside and outside the cabinet is achieved through the ventilation unit; and a dehumidification mechanism installed in the ventilation frame, which contacts with external gas through the dehumidification mechanism to remove moisture in the gas, and a ventilation pipe fixedly connected to the cabinet body, one end of the ventilation pipe is connected to the inert gas supply equipment, and the other end is used to transmit the inert gas into the cabinet.

[0007] Preferably, the ventilation unit includes a partition fixed in the ventilation frame, and air guides are fixed on both side walls of the ventilation frame. The two air guides are used to inhale external gas and discharge the gas in the buffer cavity into the cabinet. A driving mechanism for driving the two air guides is installed on the partition.

[0008] Preferably, the air guide component includes two rotating rods rotatably mounted on the partition, an air guide fan is fixed to the outer side of the rotating rods, an air guide shell that is sleeved on the outer side of the air guide fan is fixed to the inner wall of the ventilation frame, an air vent is provided on the air guide shell, and an air guide port is provided on the ventilation frame at a position corresponding to the air guide shell.

[0009] Preferably, the driving mechanism includes a driving gear fixed to the outside of a rotating rod, and the driving gears on the outsides of two rotating rods located on the same air guide part are meshed with each other. A linkage gear is fixed to the outside of one of the rotating rods on the two air guide parts, and a toothed belt is meshed on the outsides of the two linkage gears. An air guide motor is fixed to the inner wall of the ventilation frame, and the output end of the air guide motor is fixed to the outer end of one of the rotating rods through a coupling.

[0010] Preferably, the air suction component includes an air suction hood fixed to the top of the inner tank frame, the air suction hood is fixed to the inner wall of the cabinet, an exhaust fan is installed in the air suction hood, and an exhaust hole is opened in the air suction hood at the position of the buffer cavity.

[0011] Preferably, the cabinet body is provided with inclined plates at both ends of the top, and guide grooves are provided on the inclined plates.

[0012] Preferably, a reinforcing plate fixed to the inner wall of the cabinet is fixed on the outer side of the inner tank frame.

[0013] Preferably, the dehumidification mechanism comprises a U-shaped frame fixed in the ventilation frame, a screen plate is slidably inserted in the U-shaped frame, and the screen plate is located between two air guides.

[0014] Preferably, an incomplete gear is fixed to the outside of one of the rotating rods, an adjusting gear is rotatably mounted on the partition, the incomplete gear is meshed with the adjusting gear, an adjusting column plugged into the partition is fixed to one side of the screen plate, a protrusion matched with the adjusting column is fixed to the outside of the adjusting gear, and a spring sheet that abuts against the screen plate is fixed in the U-shaped frame.

[0015] Preferably, a plurality of drainage holes are provided at the bottom of the buffer cavity.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention optimizes the structure of the traditional switch cabinet and uses the designed inner liner frame to form a buffer cavity to prevent internal condensation from affecting the components installed inside. At the same time, an air intake component and a ventilation unit are arranged in the switch cabinet to cooperate with each other, so that the gas in the buffer cavity can circulate with the external gas, reducing the temperature difference between the inside and outside of the switch cabinet and reducing the generation of condensation;

[0018] 2. The dehumidification mechanism designed in the present invention can absorb moisture from the gas sucked in from the outside, thereby reducing the amount of gas with excessive moisture entering the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the present invention from another angle;

[0021] Figure 3 It is a side view of the interior of the buffer cavity after partial section of the present invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the cabinet of the present invention after partial section;

[0023] Figure 5 It is a schematic diagram of the internal structure of the cabinet body and the inner tank frame after the section view of the present invention;

[0024] Figure 6 It is a schematic diagram of the positional relationship between the driving mechanism and the dehumidification mechanism of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the driving mechanism of the ventilation frame of the present invention after partial section;

[0026] Figure 8 It is a schematic diagram of the structure of the ventilation unit after a partial cross-section of the ventilation frame of the present invention;

[0027] Fig. 9 This is a schematic diagram of the connection between the incomplete gear and the adjusting gear of the present invention;

[0028] Fig.10 It is a schematic diagram of the position relationship between the adjusting column and the protrusion of the present invention.

[0029] In the figure: 1. cabinet; 2. liner frame; 3. buffer chamber; 4. air suction component; 5. ventilation frame; 6. ventilation unit; 7. dehumidification mechanism; 8. partition; 9. air guide; 10. driving mechanism; 11. rotating rod; 12. air guide fan; 13. air guide shell; 14. air vent; 15. air guide; 16. driving gear; 17. linkage gear; 18. toothed belt; 19. air guide motor; 20. air suction hood; 21. exhaust fan; 22. exhaust hole; 23. inclined plate; 24. guide groove; 25. reinforcement plate; 26. U-shaped frame; 27. screen plate; 28. incomplete gear; 29. ​​adjusting gear; 30. adjusting column; 31. protrusion; 32. spring sheet; 33. drainage hole; 34. ventilation pipe. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1 - Figure 6 , a switch cabinet anti-condensation device shown in the figure includes a cabinet body 1 and a cabinet door connected to the outer end of the cabinet body 1, and also includes an inner tank frame 2 fixed in the cabinet body 1, a buffer chamber 3 is separated by the inner tank frame 2 and the cabinet body 1, electrical components are installed in the inner tank frame 2, and an air suction component 4 is installed on the top of the inner tank frame 2, and the gas in the inner tank frame 2 is sucked into the buffer chamber 3 through the air suction component 4; and a ventilation frame 5 fixed to the bottom of the inner tank frame 2, and a ventilation unit 6 is installed in the ventilation frame 5, and the air circulation inside and outside the cabinet body 1 is realized through the ventilation unit 6; and a dehumidification mechanism 7 installed in the ventilation frame 5, which contacts with external gas through the dehumidification mechanism 7 to remove moisture in the gas, and a ventilation pipe 34 fixedly connected to the cabinet body 1, one end of the ventilation pipe 34 is connected to the inert gas supply equipment, and the other end is used to transmit the inert gas to the cabinet body 1;

[0032] In this solution, a buffer chamber 3 is formed through the cooperation between the inner tank frame 2 and the cabinet 1. The external gas will first enter the buffer chamber 3. When the temperature difference between the inside and the outside is too large, the gas will first condense in the buffer chamber 3, and will not directly condense in the inner tank frame 2, thereby avoiding direct contact between internal components and condensation, thereby improving the protection of internal components. At the same time, the designed ventilation unit 6 and dehumidification mechanism 7 can not only improve the gas circulation performance inside and outside the cabinet 1, but also remove moisture contained in the gas to reduce the probability of condensation.

[0033] It should be noted that: in this solution, the inert gas is transmitted to the cabinet 1 through the ventilation pipe 34, so that the inert gas can not only realize gas exchange, but also protect the components in the cabinet 1.

[0034] For further information, see Figure 5 - Fig.10 The ventilation unit 6 includes a partition 8 fixed in the ventilation frame 5, and air guides 9 are fixed on both side walls of the ventilation frame 5. The two air guides 9 are used to inhale external gas and discharge the gas in the buffer chamber 3 into the cabinet 1. A driving mechanism 10 for driving the two air guides 9 is installed on the partition 8;

[0035] The air guide member 9 includes two rotating rods 11 rotatably mounted on the partition 8, an air guide fan 12 is fixed to the outer side of the rotating rod 11, an air guide shell 13 sleeved on the outer side of the air guide fan 12 is fixed to the inner wall of the ventilation frame 5, an air vent 14 is provided on the air guide shell 13, and an air guide port 15 is provided on the ventilation frame 5 at a position corresponding to the air guide shell 13;

[0036] It should be noted that, by utilizing two adjacent air guide fans 12 to rotate synchronously in opposite directions, external air enters the air guide shell 13 from the air guide port 15 and is then discharged through the air vent 14; the gas in the buffer chamber 3 enters the air guide shell 13 from the air vent 14 and is then discharged from the air guide port 15 into the inner tank frame 2.

[0037] At the same time, the driving mechanism 10 includes a driving gear 16 fixed to the outside of the rotating rod 11, and the driving gears 16 on the outside of the two rotating rods 11 located on the same air guide member 9 are meshed with each other. A linkage gear 17 is fixed to the outside of one of the rotating rods 11 on the two air guide members 9, and a toothed belt 18 is meshed on the outside of the two linkage gears 17. An air guide motor 19 is fixed to the inner wall of the ventilation frame 5, and the output end of the air guide motor 19 is fixed to the outer end of one of the rotating rods 11 through a coupling.

[0038] In this solution, the principle of achieving ventilation inside and outside the cabinet 1 to reduce the temperature difference between the inside and outside is:

[0039] The rotating rod 11 is driven to rotate by the air guide motor 19 in the driving mechanism 10, and the two adjacent driving gears 16 are meshed with each other. At the same time, under the action of the linkage gear 17 and the toothed belt 18, the two air guide parts 9 are operated synchronously, and the external air is started to be sucked into the ventilation frame 5. At the same time, the dehumidified gas in the ventilation frame 5 is introduced into the inner liner frame 2, so that the internal and external air flows are communicated, the temperature difference between the inside and the outside is reduced, and condensation is avoided inside.

[0040] For further information, see Figure 4 and Figure 5 The air suction component 4 includes an air suction cover 20 fixed to the top of the inner tank frame 2, the air suction cover 20 is fixed to the inner wall of the cabinet 1, an exhaust fan 21 is installed in the air suction cover 20, and the air suction cover 20 is provided with an exhaust hole 22 at the position of the buffer chamber 3;

[0041] The principle of the air intake component 4 adsorbing the internal gas: through the operation of the exhaust fan 21, the gas in the inner liner frame 2 is absorbed into the air intake hood 20, and then discharged to both sides through multiple exhaust holes 22, and the gas inside the inner liner frame 2 is transmitted to the buffer chamber 3, and circulated with the external gas, thereby reducing the temperature difference between the gas in the buffer chamber 3 and the external gas, reducing the condensation in the buffer chamber 3, and also reducing the temperature difference between the gas temperature in the buffer chamber 3 and the gas temperature in the inner liner frame 2, which can also reduce the probability of condensation in the inner liner frame 2.

[0042] For further information, see Figure 6 and Fig.10 The dehumidification mechanism 7 includes a U-shaped frame 26 fixed in the ventilation frame 5, a screen plate 27 is slidably inserted in the U-shaped frame 26, and the screen plate 27 is located between the two air guides 9.

[0043] In this solution, the designed screen plate 27 is a metal screen, and the specific shape can be similar to a sponge layer structure. When the external gas with high humidity passes through the screen plate 27, it can increase the area of ​​contact with the external gas, thereby directly absorbing the moisture with high humidity in the external gas, and flowing through gravity, gathering into small water droplets and falling, thereby removing moisture from the external gas.

[0044] It should also be noted that: a plurality of drainage holes 33 are provided at the bottom of the buffer chamber 3 so that the dripping small water droplets can be collected and discharged.

[0045] Specific process for preventing condensation in switch cabinet:

[0046] First, the internal gas is sucked into the buffer chamber 3 through the suction component 4;

[0047] Afterwards, the outside air is introduced into the buffer chamber 3 through the air guide 9 in the ventilation unit 6, and then the moisture in the outside air is first removed through the dehumidification mechanism 7, and then it is contacted and merged with the gas in the buffer chamber 3, so as to reduce the temperature difference between the buffer chamber 3 and the outside air and avoid condensation in the buffer chamber 3;

[0048] Afterwards, another air guide 9 of the ventilation unit 6 is operated to introduce the gas in the buffer chamber 3 into the inner liner frame 2, thereby enabling the gas to circulate between the buffer chamber 3 and the inner liner frame 2, further reducing the gas temperature difference between the buffer chamber 3 and the inner liner frame 2, and avoiding the occurrence of condensation.

[0049] In this solution, the entry of external gas into the inner liner frame 2 through the buffer chamber 3 is divided into two steps. First, the gas in the buffer chamber 3 is mixed and fused, and then mixed with the gas in the inner liner frame 2, so that the temperature difference between the inside and the outside will not be too different. Secondly, the external gas is contacted through the dehumidification mechanism 7 to absorb the moisture contained in the external gas, which can further avoid condensation after the gas flows in.

[0050] It should also be noted that the ventilation frame 5 in this solution is a rectangular frame, which is inclined at the bottom of both sides of the cabinet 1. The inclined design is mainly to prevent dust from entering the interior through the air guide port 15.

[0051] Example 2: Please refer to Fig. 9 and Fig.10This embodiment further explains the first embodiment, and the difference lies in that a shaking function is added to the screen plate 27, which can help the adsorbed water droplets to drip quickly.

[0052] Specifically, an incomplete gear 28 is fixed to the outside of one of the rotating rods 11, and two tooth blocks are provided on the outside of the incomplete gear 28. An adjusting gear 29 is rotatably installed on the partition 8, and the incomplete gear 28 is meshed with the adjusting gear 29. An adjusting column 30 that is plugged into the partition 8 is fixed on one side of the screen plate 27. The outside of the adjusting column 30 is hemispherical in design, and a protrusion 31 that is compatible with the adjusting column 30 is fixed to the outside of the adjusting gear 29. A spring sheet 32 ​​that is against the screen plate 27 is fixed in the U-shaped frame 26.

[0053] In this solution, when the driving mechanism 10 drives the rotating rod 11 to rotate, the incomplete gear 28 will rotate. Every time the incomplete gear 28 rotates one circle, it will drive the adjusting gear 29 to rotate one grid accordingly. With the drive of the incomplete gear 28, the adjusting gear 29 will rotate slowly until the protrusion 31 designed on its inner side contacts the adjusting column 30 and squeezes the adjusting column 30, so that the screen plate 27 moves along the U-shaped frame 26 and is reset under the action of the spring sheet 32. Through the one-up and one-reset operation, the screen plate 27 is shaken, which helps to shake off the water droplets attached to it and facilitates the adsorption of moisture in the external gas.

[0054] Example 3: Please refer to Figure 3-Figure 5 This embodiment further illustrates other embodiments, and the difference lies in that the structure of the cabinet 1 is optimized.

[0055] Specifically, the cabinet body 1 is provided with inclined plates 23 at both ends of the top, and a guide groove 24 is opened on the inclined plate 23. The design of the inclined plate 23 and the guide groove 24 helps the condensed water droplets on the top to slide down, wherein a reinforcing plate 25 fixed to the inner wall of the cabinet body 1 is fixed on the outer side of the inner tank frame 2, and the overall strength can be improved by the reinforcing plate 25.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A switch cabinet anti-condensation device, comprising: A cabinet body (1) and a cabinet door connected to the outer end of the cabinet body (1); It is characterized by further comprising: An inner liner frame (2) is fixed in the cabinet (1), a buffer chamber (3) is separated by the inner liner frame (2) and the cabinet (1), electrical components are installed in the inner liner frame (2), and an air suction component (4) is installed on the top of the inner liner frame (2), and the air in the inner liner frame (2) is sucked into the buffer chamber (3) through the air suction component (4); and, A ventilation frame (5) is fixed to the bottom of the inner tank frame (2), wherein a ventilation unit (6) is installed in the ventilation frame (5), and the ventilation unit (6) is used to realize gas circulation inside and outside the cabinet (1); and A dehumidification mechanism (7) installed in the ventilation frame (5), through which the dehumidification mechanism (7) contacts with external air to remove moisture from the air; and A ventilation pipe (34) fixedly connected to the cabinet (1), one end of the ventilation pipe (34) being connected to the inert gas supply device, and the other end being used to transmit the inert gas into the cabinet (1); the ventilation unit (6) comprising a partition (8) fixed in the ventilation frame (5), air guides (9) being fixed on both side walls of the ventilation frame (5), and being used for inhaling external gas and discharging gas in the buffer chamber (3) into the cabinet (1), the partition (8) being provided with a driving mechanism (10) for driving the two air guides (9); the air guides (9) comprising two rotating rods (11) rotatably mounted on the partition (8), an air guide fan (12) being fixed on the outer side of the rotating rod (11), an air guide shell (13) being sleeved on the outer side of the air guide fan (12) being fixed on the inner wall of the ventilation frame (5), and a ventilation opening (13) being provided on the air guide shell (13) The dehumidification mechanism (7) comprises a U-shaped frame (26) fixed in the ventilation frame (5), a screen plate (27) being slidably inserted in the U-shaped frame (26), and the screen plate (27) being located between two air guide members (9); an incomplete gear (28) is fixed on the outer side of one of the rotating rods (11), an adjusting gear (29) is rotatably mounted on the partition (8), the incomplete gear (28) meshing with the adjusting gear (29), an adjusting column (30) plugged into the partition (8) is fixed on one side of the screen plate (27), and a protrusion (31) matched with the adjusting column (30) is fixed on the outer side of the adjusting gear (29), and a spring sheet (32) abutting against the screen plate (27) is fixed in the U-shaped frame (26).

2. The switch cabinet anti-condensation device according to claim 1, characterized in that: The driving mechanism (10) comprises a driving gear (16) fixed on the outside of a rotating rod (11); the driving gears (16) on the outside of two rotating rods (11) on the same air guide (9) are meshed with each other; a linkage gear (17) is fixed on the outside of one of the rotating rods (11) on the two air guides (9); and a toothed belt (18) is meshed on the outside of the two linkage gears (17); an air guide motor (19) is fixed on the inner wall of the ventilation frame (5); and the output end of the air guide motor (19) is fixed to the outer end of one of the rotating rods (11) through a coupling.

3. The switch cabinet anti-condensation device according to claim 1, characterized in that: The air intake component (4) comprises an air intake hood (20) fixed on the top of the inner tank frame (2); the air intake hood (20) is fixed to the inner wall of the cabinet (1); an exhaust fan (21) is installed in the air intake hood (20); and an exhaust hole (22) is opened in the air intake hood (20) at the position of the buffer chamber (3).

4. The switch cabinet anti-condensation device according to claim 1, characterized in that: The cabinet (1) is provided with inclined plates (23) at both ends of the top, and guide grooves (24) are provided on the inclined plates (23).

5. The switch cabinet anti-condensation device according to claim 1, characterized in that: A reinforcing plate (25) fixed to the inner wall of the cabinet (1) is fixed on the outer side of the inner container frame (2).

6. The switch cabinet anti-condensation device according to claim 1, characterized in that: A plurality of drainage holes (33) are provided at the bottom of the buffer chamber (3).

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