A moisture absorption device for a frame-type amorphous alloy dry-type transformer and its usage method

Abstract

The present invention discloses a moisture absorption device for a frame-type amorphous alloy dry-type transformer and its usage method, belonging to the technical field of dry-type transformers. It includes a transformer outer shell, a transformer inner shell, an iron core, and a coil. The coil is wound around the iron core. The transformer inner shell is connected to the bottom plate, and the coil and the iron core are placed inside the inner shell. The transformer outer shell is sleeved outside the transformer inner shell, and the transformer outer shell and the transformer inner shell are respectively provided with first heat dissipation holes and second heat dissipation holes. For the moisture absorption device for a frame-type amorphous alloy dry-type transformer and its usage method proposed by the present invention, the shafts of the fan blades and the turbine rotate. The fan blades are used to open and close the second heat dissipation holes or adjust the angles to control the air flow rate, thereby realizing the control of the rotation angles of the fan blades. The suction pump generates negative pressure to absorb the gas in contact between the moisture absorption outer ring and the heat dissipation pipe, thereby absorbing the water vapor adsorbed on the inner wall of the heat dissipation pipe into the liquid storage tank. When the fan blades are in the closed state, the suction pump discharges the liquid in the liquid storage tank.

Description

Technical Field

[0001] The present invention relates to the technical field of dry-type transformers, and particularly relates to a moisture absorption device for a frame-type amorphous alloy dry-type transformer and a using method thereof. Background Art

[0002] Dry-type transformers are widely used in places such as local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Simply put, a dry-type transformer refers to a transformer in which the iron core and windings are not immersed in insulating oil.

[0003] The cooling methods are divided into natural air cooling (AN) and forced air cooling (AF). In the case of natural air cooling, the transformer can operate continuously at the rated capacity for a long time. In the case of forced air cooling, the output capacity of the transformer can be increased by 50%. It is suitable for intermittent overload operation or emergency accident overload operation; since the load loss and impedance voltage increase significantly during overload, it is in a non-economic operation state, so it should not be in long-term continuous overload operation.

[0004] Amorphous alloy uses an advanced super-rapid cooling technology to spray molten substances such as iron, cobalt, boron, and silicon onto a chassis with an extremely high rotational speed and rapidly cool them to form thin strips with a thickness of 0.02 mm - 0.04 mm. It has excellent soft magnetic properties, corrosion resistance, wear resistance, and high resistivity. The SCBH15 series of amorphous alloy dry-type transformers are contemporary advanced energy-saving dry-type amorphous alloy dry-type transformers, with the no-load loss ratio reduced by 75% and the load loss ratio reduced by 15%; they have the characteristics of maintenance-free, moisture and heat resistance, fire prevention, explosion prevention, small partial discharge, and strong heat dissipation capacity. Any place where ordinary dry-type amorphous alloy dry-type transformers are currently used (including airports, stations, urban subways, high-rise buildings, power plants, etc.) can be replaced by amorphous alloy dry-type transformers.

[0005] When a dry-type transformer is in use, it often needs to dissipate heat. When using the through-cooling method, it is easy for water vapor to enter, and without an effective moisture absorption device, it will affect the use. Summary of the Invention

[0006] The purpose of the present invention is to provide a moisture absorption device for a frame-type amorphous alloy dry-type transformer and a using method thereof to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A moisture absorption device for a frame-type amorphous alloy dry-type transformer, including a transformer outer shell, a transformer inner shell, an iron core, and a coil. The coil is wound around the iron core. The transformer inner shell is connected to the bottom plate. The coil and the iron core are placed inside the inner shell. The transformer outer shell is sleeved outside the transformer inner shell. The transformer outer shell and the transformer inner shell are respectively provided with a first heat dissipation hole and a second heat dissipation hole, and the first heat dissipation hole and the second heat dissipation hole are connected by a heat dissipation pipe;

[0008] A waterproof vapor component, an inner wall vapor absorption component and a support frame are provided inside the heat dissipation pipe. Among them, the support frame is installed at the connection of the second heat dissipation hole and the heat dissipation pipe, and the waterproof vapor component is installed on the support frame. The conduction area of the second heat dissipation hole is controlled by adjusting the angle of the waterproof vapor component. The inner wall vapor absorption component is arranged along the inside of the heat dissipation pipe and is used to absorb the incoming water vapor.

[0009] Further, the first heat dissipation holes and the second heat dissipation holes are grouped in pairs and are correspondingly arranged. And the number of the first heat dissipation holes and the second heat dissipation holes is not less than eight groups, and they are symmetrically arranged on the front and back surfaces of the transformer housing respectively.

[0010] Further, the waterproof vapor component includes an outer frame, a motor, a speed reducer, a worm, a turbine and a fan blade. The support frame abuts against the side wall of the outer frame. The outer frame is fixed on the inner wall of the second heat dissipation hole. The bottom end of the support frame is fixed on the bottom wall of the heat dissipation pipe. The two ends of the worm are installed on the outer frame. The bottom end of the worm is connected to the speed reducer. The speed reducer is connected to the motor. The speed reducer and the motor are both installed at the connection of the heat dissipation pipe;

[0011] The worm meshes with a plurality of turbines. The shaft connected to the turbine passes through the bearing of the outer frame. The fan blade is fixed on the shaft of the turbine. The fan blade rotates with the shaft of the turbine. The fan blade is used for opening and closing the second heat dissipation hole or adjusting the angle to control the air flow rate.

[0012] Further, the inner wall vapor absorption component includes a guide rod, a guide sleeve, a moisture absorption component and a power component;

[0013] One end of the guide rod is fixed on the support frame. The guide sleeve is sleeved on the guide rod. The power component is installed on the guide sleeve and is connected to the guide rod. The moisture absorption component is connected to the guide rod.

[0014] Further, the moisture absorption component includes a moisture absorption outer ring, a moisture absorption inner ring, a suction pump, a suction pipe and a liquid storage tank. The moisture absorption inner ring is sleeved on the guide sleeve and fixed. The liquid storage tank and the suction pump are fixed side by side on the support plate of the moisture absorption inner ring. The outer wall of the moisture absorption inner ring is connected to the moisture absorption outer ring through a suction pipe;

[0015] One end of the suction pump is connected to the inside of the liquid storage tank through a pipeline. The other end of the suction pump is connected to the inside of the moisture absorption inner ring through a pipeline and is communicated with the annular suction groove outside the moisture absorption outer ring through a suction pipe. Among them, the moisture absorption outer ring is attached to the inside of the heat dissipation pipe.

[0016] Further, the power component includes a servo motor, a gearbox, a gear and a rack. The servo motor and the gearbox are fixed side by side on the guide sleeve. The servo motor is connected to the gearbox. The shaft of the gearbox is connected to the gear;

[0017] The rack is embedded in the groove of the guide rod along the length direction. Among them, the gear meshes with the rack.

[0018] Another technology proposed by the present invention includes a method for using a moisture absorption device of a frame-type amorphous alloy dry-type transformer, comprising the following steps:

[0019] S1: Drive the reducer to rotate through the motor. During the rotation of the worm, drive the turbine and the fan blade to rotate synchronously. Utilize the rotation of the fan blade to achieve two states;

[0020] The first state: The rotation of the fan blade closes the second heat dissipation hole, thereby minimizing the entry of external water vapor into the dry-type transformer;

[0021] The second state: The fan blade rotates a certain angle, and the second heat dissipation hole is in an open state. Then, through the angle transformation and the opening diameter size of the second heat dissipation hole, adjust its heat dissipation efficiency;

[0022] S2: When the second heat dissipation hole is in an open state, drive the gearbox to rotate through the motor, drive the gear to move along the rack, and adjust the movement of the guide sleeve on the guide rod;

[0023] S3: The suction pump generates negative pressure to absorb the gas in contact between the moisture absorption outer ring and the heat dissipation pipe, thereby absorbing the water vapor adsorbed on the inner wall of the heat dissipation pipe into the liquid storage tank. When the fan blade is in a closed state, the suction pump discharges the liquid in the liquid storage tank.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. For a moisture absorption device of a frame-type amorphous alloy dry-type transformer and its using method proposed by the present invention, the worm meshes with multiple turbines. The shaft connected to the turbine passes through the bearing of the outer frame. The fan blade is fixed on the shaft of the turbine. The fan blade and the shaft of the turbine rotate. The fan blade is used to open and close the second heat dissipation hole or adjust the angle to control the air flow rate, thereby realizing the control of the rotation angle of the fan blade.

[0026] 2. For a moisture absorption device of a frame-type amorphous alloy dry-type transformer and its using method proposed by the present invention, the liquid storage tank and the suction pump are fixed side by side on the support plate of the moisture absorption inner ring. The outer wall of the moisture absorption inner ring is connected to the moisture absorption outer ring through a suction pipe; it is communicated with the annular suction groove outside the moisture absorption outer ring through the suction pipe. Among them, the moisture absorption outer ring is attached to the heat dissipation pipe. Through the purpose of attaching the moisture absorption outer ring to the heat dissipation pipe, under the negative pressure of the suction pump in the annular suction groove of the moisture absorption outer ring, the water vapor in the heat dissipation pipe will be absorbed.

[0027] 3. For a moisture absorption device of a frame-type amorphous alloy dry-type transformer and its using method proposed by the present invention, when the second heat dissipation hole is in an open state, drive the gearbox to rotate through the motor, drive the gear to move along the rack, and adjust the movement of the guide sleeve on the guide rod. The suction pump generates negative pressure to absorb the gas in contact between the moisture absorption outer ring and the heat dissipation pipe, thereby absorbing the water vapor adsorbed on the inner wall of the heat dissipation pipe into the liquid storage tank. When the fan blade is in a closed state, the suction pump discharges the liquid in the liquid storage tank. Brief Description of the Drawings

[0028] Figure 1 is the overall structure diagram of the present invention;

[0029] Figure 2 is the internal structure diagram of the present invention;

[0030] Figure 3 is the internal sectional view of the present invention;

[0031] Figure 4 is the front view of the waterproof and moisture-proof component of the present invention;

[0032] Figure 5 is the closed state diagram of the waterproof and moisture-proof component of the present invention;

[0033] Figure 6 is the open state diagram of the waterproof and moisture-proof component of the present invention;

[0034] Figure 7 is of the present invention Figure 3 enlarged view of part A.

[0035] In the figure: 1. Transformer housing; 11. First heat dissipation hole; 2. Transformer inner shell; 21. Second heat dissipation hole; 3. Iron core; 4. Coil; 5. Bottom plate; 6. Heat dissipation pipe; 7. Waterproof and moisture-proof component; 71. Outer frame; 72. Motor; 73. Reducer; 74. Worm; 75. Turbine; 76. Fan blade; 8. Inner wall moisture absorption component; 81. Guide rod; 82. Guide sleeve; 83. Moisture absorption component; 831. Moisture absorption outer ring; 832. Moisture absorption inner ring; 833. Absorption pump; 834. Suction pipe; 835. Liquid storage tank; 84. Power component; 841. Servo motor; 842. Gearbox; 843. Gear; 844. Rack; 9. Support frame. Detailed Description of the Invention

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figure 1, A moisture absorption device for a frame-type amorphous alloy dry-type transformer, comprising a transformer outer shell 1, a transformer inner shell 2, an iron core 3 and a coil 4. The coil 4 is wound around the iron core 3. The transformer inner shell 2 is connected to a bottom plate 5. The coil 4 and the iron core 3 are placed inside the inner shell. The transformer outer shell 1 is sleeved outside the transformer inner shell 2. First heat dissipation holes 11 and second heat dissipation holes 21 are respectively provided on the transformer outer shell 1 and the transformer inner shell 2, and the first heat dissipation holes 11 and the second heat dissipation holes 21 are connected by a heat dissipation pipe 6. Through the provided first heat dissipation holes 11, second heat dissipation holes 21 and heat dissipation pipe 6, the inside and outside of the transformer inner shell 2 are in a connected state, so that heat dissipation can be directly carried out;

[0038] Please refer to Figure 2 , A waterproof vapor component 7, an inner wall water vapor absorption component 8 and a support frame 9 are provided inside the heat dissipation pipe 6. Among them, the support frame 9 is installed at the connection of the second heat dissipation hole 21 and the heat dissipation pipe 6, and the waterproof vapor component 7 is installed on the support frame 9. The conduction area size of the second heat dissipation hole 21 is controlled by adjusting the angle of the waterproof vapor component 7. The inner wall water vapor absorption component 8 is arranged along the inside of the heat dissipation pipe 6 for absorbing the incoming water vapor.

[0039] The first heat dissipation holes 11 and the second heat dissipation holes 21 are set in pairs and correspondingly arranged, and the number of the first heat dissipation holes 11 and the second heat dissipation holes 21 is not less than eight groups, which are symmetrically arranged on the front and back surfaces of the transformer outer shell 1 respectively. Through the provided multi-group structure, the heat dissipation efficiency is improved.

[0040] Please refer to Figures 3 - 7 , The waterproof vapor component 7 includes an outer frame 71, a motor 72, a speed reducer 73, a worm 74, a turbine 75 and a fan blade 76. The support frame 9 abuts against the side wall of the outer frame 71. The outer frame 71 is fixed on the inner wall of the second heat dissipation hole 21. The bottom end of the support frame 9 is fixed on the bottom wall of the heat dissipation pipe 6. The outer frame 71 is fixed by the provided support frame 9. The two ends of the worm 74 are installed on the outer frame 71. The bottom end of the worm 74 is connected to the speed reducer 73. The speed reducer 73 is connected to the motor 72. The speed reducer 73 and the motor 72 are both installed on the heat dissipation pipe 6;

[0041] The worm 74 meshes with a plurality of turbines 75. The shaft connected to the turbine 75 passes through the bearing of the outer frame 71. The fan blade 76 is fixed on the shaft of the turbine 75. The fan blade 76 rotates with the shaft of the turbine 75. The fan blade 76 is used to open and close the second heat dissipation hole 21 or adjust the angle to control the air flow rate, so as to realize the control of the rotation angle of the fan blade 76.

[0042] The inner wall water vapor absorption component 8 includes a guide rod 81, a guide sleeve 82, a moisture absorption component 83 and a power component 84;

[0043] One end of the guiding rod 81 is fixed on the supporting frame 9. The guiding sleeve 82 is sleeved on the guiding rod 81. The power assembly 84 is installed on the guiding sleeve 82 and connected to the guiding rod 81. The moisture absorption assembly 83 is connected to the guiding rod 81.

[0044] The moisture absorption assembly 83 includes a moisture absorption outer ring 831, a moisture absorption inner ring 832, a suction pump 833, a suction pipe 834 and a liquid storage tank 835. The moisture absorption inner ring 832 is sleeved on the guiding sleeve 82 and fixed. The liquid storage tank 835 and the suction pump 833 are fixed side by side on the supporting plate of the moisture absorption inner ring 832. The outer wall of the moisture absorption inner ring 832 is connected to the moisture absorption outer ring 831 through the suction pipe 834.

[0045] One end of the suction pump 833 is connected to the inside of the liquid storage tank 835 through a pipeline. The other end of the suction pump 833 is connected to the inside of the moisture absorption inner ring 832 through a pipeline and is communicated with the annular suction groove outside the moisture absorption outer ring 831 through the suction pipe 834. Among them, the moisture absorption outer ring 831 is attached to the inside of the heat dissipation pipe 6. For the purpose of attaching the moisture absorption outer ring 831 to the heat dissipation pipe 6, under the negative pressure action of the suction pump 833 in the annular suction groove of the moisture absorption outer ring 831, the water vapor in the heat dissipation pipe 6 will be absorbed.

[0046] The power assembly 84 includes a servo motor 841, a gearbox 842, a gear 843 and a rack 844. The servo motor 841 and the gearbox 842 are fixed side by side on the guiding sleeve 82. The servo motor 841 is connected to the gearbox 842. The shaft of the gearbox 842 is connected to the gear 843.

[0047] The rack 844 is embedded in the groove of the guiding rod 81 along the length direction. Among them, the gear 843 meshes with the rack 844. By rotating the gear 843, the moisture absorption assembly 83 can move, so as to achieve the purpose of comprehensive moisture absorption.

[0048] A usage method of a moisture absorption device for a frame type amorphous alloy dry-type transformer includes the following steps:

[0049] Step 1: Drive the reduction gear 73 to rotate through the motor 72. During the rotation of the worm 74, the turbine 75 and the fan blade 76 are driven to rotate synchronously. By rotating the fan blade 76, two states are achieved.

[0050] The first state: When the fan blade 76 rotates to close the second heat dissipation hole 21, the entry of external water vapor into the dry-type transformer is minimized.

[0051] The second state: When the fan blade 76 rotates by a certain angle and the second heat dissipation hole 21 is in an open state, through the angle transformation, the heat dissipation efficiency is adjusted by the opening diameter size of the second heat dissipation hole 21.

[0052] Step 2: With the second heat dissipation hole 21 in the open state, the servo motor 841 drives the gearbox 842 to rotate, driving the gear 843 to move along the rack 844, and adjusting the movement of the guide sleeve 82 on the guide rod 81;

[0053] Step 3: The suction pump 833 generates negative pressure to absorb the gas between the moisture absorption outer ring 831 and the heat dissipation pipe 6, thereby absorbing the water vapor adsorbed on the inner wall of the heat dissipation pipe 6 into the liquid storage tank 835. When the fan blades 76 are in the closed state, the suction pump 833 discharges the liquid in the liquid storage tank 835.

[0054] In summary, for the moisture absorption device and its usage method of the frame-type amorphous alloy dry-type transformer of the present invention, since the inside and outside of the inner shell 2 of the transformer are in a communicating state, direct heat dissipation can be carried out. The support frame 9 is installed at the connection of the second heat dissipation hole 21 and the heat dissipation pipe 6, and the waterproof vapor assembly 7 is installed on the support frame 9. The conduction area of the second heat dissipation hole 21 is controlled by adjusting the angle of the waterproof vapor assembly 7. The inner wall water vapor absorption assembly 8 is arranged along the inside of the heat dissipation pipe 6 and is used to absorb the incoming water vapor. The fan blades 76 are fixed on the shaft of the turbine 75, and the fan blades 76 rotate with the shaft of the turbine 75. The fan blades 76 are used to open and close the second heat dissipation hole 21 or adjust the angle to control the air flow rate, thereby realizing the control of the rotation angle of the fan blades 76. By fitting the moisture absorption outer ring 831 with the heat dissipation pipe 6, under the negative pressure of the suction pump 833 in the annular suction groove of the moisture absorption outer ring 831, the water vapor in the heat dissipation pipe 6 will be absorbed.

[0055] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A moisture absorption device for a frame-type amorphous alloy dry-type transformer, characterized in that It includes a transformer outer shell (1), a transformer inner shell (2), an iron core (3), and a coil (4). The coil (4) is wound around the iron core (3). The transformer inner shell (2) is connected to a bottom plate (5). The coil (4) and the iron core (3) are placed inside the inner shell. The transformer outer shell (1) is sleeved outside the transformer inner shell (2). The transformer outer shell (1) and the transformer inner shell (2) are respectively provided with a first heat dissipation hole (11) and a second heat dissipation hole (21). And the first heat dissipation hole (11) and the second heat dissipation hole (21) are connected by a heat dissipation pipe (6). A waterproof vapor component (7), an inner wall water vapor absorption component (8), and a support frame (9) are arranged inside the heat dissipation pipe (6). Among them, the support frame (9) is installed at the connection of the second heat dissipation hole (21) and the heat dissipation pipe (6), and the waterproof vapor component (7) is installed on the support frame (9). The conduction area size of the second heat dissipation hole (21) is controlled by adjusting the angle of the waterproof vapor component (7). The inner wall water vapor absorption component (8) is arranged along the inside of the heat dissipation pipe (6) for absorbing the incoming water vapor. The inner wall water vapor absorption component (8) includes a guide rod (81), a guide sleeve (82), a moisture absorption component (83), and a power component (84). One end of the guide rod (81) is fixed on the support frame (9). The guide sleeve (82) is sleeved on the guide rod (81). The power component (84) is installed on the guide sleeve (82) and connected to the guide rod (81). The moisture absorption component (83) is connected to the guide rod (81). The moisture absorption component (83) includes a moisture absorption outer ring (831), a moisture absorption inner ring (832), a suction pump (833), a suction pipe (834), and a liquid storage tank (835). The moisture absorption inner ring (832) is sleeved on the guide sleeve (82) and fixed. The liquid storage tank (835) and the suction pump (833) are fixed side by side on the tray of the moisture absorption inner ring (832). The outer wall of the moisture absorption inner ring (832) is connected to the moisture absorption outer ring (831) through the suction pipe (834). One end of the suction pump (833) is connected to the inside of the liquid storage tank (835) through a pipe, and the other end of the suction pump (833) is connected to the inside of the moisture absorption inner ring (832) through a pipe and communicated with the annular suction groove outside the moisture absorption outer ring (831) through the suction pipe (834). Among them, the moisture absorption outer ring (831) is attached to the inside of the heat dissipation pipe (6).

2. The moisture absorption device of a frame-type amorphous alloy dry-type transformer according to claim 1, characterized in that, The first heat dissipation holes (11) and the second heat dissipation holes (21) are arranged in pairs and correspondingly set. And the number of the first heat dissipation holes (11) and the second heat dissipation holes (21) is not less than eight groups, which are symmetrically arranged on the front and back surfaces of the transformer outer shell (1) respectively.

3. The moisture absorption device of a frame-type amorphous alloy dry-type transformer as described in claim 1, characterized in that, The waterproof vapor component (7) includes an outer frame (71), a motor (72), a speed reducer (73), a worm (74), a turbine (75) and a fan blade (76). The support frame (9) abuts against the side wall of the outer frame (71). The outer frame (71) is fixed on the inner wall of the second heat dissipation hole (21). The bottom end of the support frame (9) is fixed on the bottom wall of the heat dissipation pipe (6). The two ends of the worm (74) are mounted on the outer frame (71). The bottom end of the worm (74) is connected to the speed reducer (73). The speed reducer (73) is connected to the motor (72). The speed reducer (73) and the motor (72) are both mounted on the heat dissipation pipe (6). The worm (74) meshes with a plurality of turbines (75). The shaft connected to the turbine (75) passes through the bearing of the outer frame (71). The fan blade (76) is fixed on the shaft of the turbine (75). The fan blade (76) rotates with the shaft of the turbine (75). The fan blade (76) is used to open and close the second heat dissipation hole (21) or adjust the angle to control the air flow rate.

4. The moisture absorption device of a frame-type amorphous alloy dry-type transformer as described in claim 1, characterized in that, The power component (84) includes a servo motor (841), a gearbox (842), a gear (843) and a rack (844). The servo motor (841) and the gearbox (842) are fixed side by side on the guide sleeve (82). The servo motor (841) is connected to the gearbox (842). The shaft of the gearbox (842) is connected to the gear (843). The rack (844) is embedded in the groove of the guide rod (81) along the length direction. Among them, the gear (843) meshes with the rack (844).

5. A method for using a moisture absorption device of a frame-type amorphous alloy dry-type transformer according to any one of claims 1-4, characterized in that, It includes the following steps: S1: Drive the speed reducer (73) to rotate through the motor (72). During the rotation of the worm (74), drive the turbine (75) and the fan blade (76) to rotate synchronously. Utilize the rotation of the fan blade (76) to reach two states; The first state: The fan blade (76) rotates to close the second heat dissipation hole (21), then minimize the entry of external water vapor into the dry-type transformer; The second state: The fan blade (76) rotates a certain angle, and the second heat dissipation hole (21) is in the open state. Then, through the angle change and the opening diameter size of the second heat dissipation hole (21), adjust its heat dissipation efficiency; S2: When the second heat dissipation hole (21) is in the open state, the servo motor (841) drives the gearbox (842) to rotate, drives the gear (843) to move along the rack (844), and adjusts the movement of the guide sleeve (82) on the guide rod (81); S3: The suction pump (833) generates negative pressure to absorb the gas where the moisture absorption outer ring (831) is in contact with the heat dissipation pipe (6), thereby absorbing the water vapor adsorbed on the inner wall of the heat dissipation pipe (6) into the liquid storage tank (835). When the fan blade (76) is in the closed state, the suction pump (833) discharges the liquid in the liquid storage tank (835).

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