Foggy day moisture-proof heat removal device for high-low voltage switch cabinet

Abstract

The invention discloses a foggy day moisture-proof heat removal device for a high-low voltage switch cabinet, which comprises a condensation box, a scraper, a first rotating shaft, an exhaust pipe and an air inlet pipe, a plurality of condensation pipes are fixedly connected to the middle part of the condensation box, the scraper is arranged in the condensation box and is in sliding connection with the condensation pipes, and the first rotating shaft is rotationally connected in the condensation box and is in sliding connection with the exhaust pipe. A reciprocating screw rod is fixedly connected to the middle of the first rotating shaft, one end of the reciprocating screw rod is sleeved with a lining, the lining is fixedly connected to the middle of the scraper blade, an exhaust pipe is fixedly connected to the top of the condensation box and communicates with the condensation box, and an air inlet pipe is fixedly connected to the bottom of the side wall of the condensation box and communicates with the condensation box; according to the invention, a liquid film on the surface of the condensation pipe can be scraped off through the design of the scraper plate, so that the condensation effect of the condensation pipe is ensured, and in addition, fluctuating negative pressure can be generated in the switch cabinet and the condensation box through the design of the negative pressure wind wheel and the rectangular gate plate, so that the air fluidity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment protection, in particular to a foggy weather moisture-proof and heat-removing device for high and low voltage switch cabinets. Background Art

[0002] High and low voltage switchgear is the core equipment for distributing, controlling, and protecting electrical energy in power systems. In foggy environments, the temperature difference between the inside and outside of the switchgear can easily cause condensation on the cabinet walls, which can degrade insulation performance and increase the risk of short circuits.

[0003] After searching, a Chinese patent with publication number CN113572038B discloses an intelligent switch cabinet dehumidifier and a dehumidifying switch cabinet, wherein the intelligent switch cabinet dehumidifier is arranged in a cabinet body, a filter plate is provided in the cabinet body, and the intelligent switch cabinet dehumidifier comprises a shell and a heat exchanger mounted on the outer wall of the cabinet body, and an air suction head movably arranged above the filter plate through a reciprocating structure. When the first driving mechanism is working, the air suction head is driven to perform a first reciprocating linear motion above the filter plate. During this process, the second driving mechanism is triggered, so that the air suction head performs a second reciprocating linear motion during the first reciprocating linear motion, and the first reciprocating linear motion is perpendicular to the second linear reciprocating space. Finally, since the two linear motions are performed simultaneously, the air suction head performs a sinusoidal reciprocating motion, and the humid air absorbed by the air suction component from the cabinet body through the air suction head is transferred to the heat exchanger for dehumidification treatment, and then the treated air is discharged back into the cabinet body;

[0004] In the above technology, although the humid air inside the switch cabinet is transported to the heat exchanger through the suction head to dehumidify the air, in actual use, when the humid air flows into the heat exchanger, it will condense into liquid on the heat exchange tube inside the heat exchanger, thereby achieving the dehumidification effect. However, during the long dehumidification process, a layer of liquid film will form on the surface of the heat exchange tube. This liquid film will prevent the humid air from directly contacting the heat exchange tube, thereby affecting the heat exchange effect and then affecting the dehumidification effect. Summary of the Invention

[0005] The object of the present invention is to provide a foggy weather moisture-proof and heat-removing device for high and low voltage switchgear, so as to solve the problem that the existing switchgear is inconvenient to dehumidify in foggy weather.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a foggy weather moisture-proof and heat-removing device for high and low voltage switchgear, comprising:

[0007] A condensation box, wherein a plurality of condensation pipes are fixedly connected to the middle of the condensation box;

[0008] A scraper is provided inside the condensation box and is slidably connected to the condensation tube;

[0009] A first rotating shaft is rotatably connected to the interior of the condensation box, a reciprocating screw is fixedly connected to the middle of the first rotating shaft, one end of the reciprocating screw is sleeved with a bushing, and the bushing is fixedly connected to the middle of the scraper;

[0010] The exhaust pipe is fixedly connected to the top of the condensation tank and communicated with the condensation tank;

[0011] The air inlet pipe is fixedly connected to the bottom of the side wall of the condensation tank and is communicated with the condensation tank.

[0012] Preferably, it also includes a water tank, one end of the water tank is connected to a water pump, the output end of the water pump is connected to a drain pipe, one end of the drain pipe is connected to a conduit, the bottom of the conduit is connected to an output pipe, one end of the top of the water tank is connected to a return pipe, one end of the return pipe is connected to a heat dissipation pipe, one end of the heat dissipation pipe is connected to a connecting pipe, one end of the output pipe and the connecting pipe are both connected to a rectangular box, and the two rectangular boxes are respectively arranged at the two ends of the outside of the condensation tank and are connected to the condensation pipe.

[0013] Preferably, both ends of the first rotating shaft extend into the interior of the rectangular box and are rotatably connected to the rectangular box, and both ends of the first rotating shaft are fixedly connected with semicircular gate plates.

[0014] Preferably, the bottom of the output pipe is located at an adjacent end of the rectangular box and is connected to a branch pipe, and one end of the branch pipe is connected to the connecting pipe.

[0015] Preferably, the branch pipe is fixedly connected to a fixing ring inside one end of the output pipe, a first spring telescopic rod is fixedly connected to the inside of the branch pipe below the fixing ring, and a blocking block is fixedly connected to the top of the first spring telescopic rod.

[0016] Preferably, a second rotating shaft is rotatably connected inside the conduit, a turbine blade is fixedly connected to the top of the second rotating shaft, one end of the side wall of the conduit is rotatably connected to the first transmission shaft, the bottom of the second rotating shaft and the end of the first transmission shaft located inside the conduit are both fixedly connected to a first bevel gear, the two first bevel gears are meshed with each other, one end of the first transmission shaft extends to the inside of the condensation box and is rotatably connected to the condensation box, one end of the first transmission shaft and the first rotating shaft are both fixedly connected to a synchronous wheel, and the two synchronous wheels are driven by a synchronous belt.

[0017] Preferably, one end of the interior of the condensation box is rotatably connected to a third rotating shaft, one end of the third rotating shaft extends to the outside of the condensation box and is fixedly connected to a fan, the fan is located adjacent to the heat dissipation pipe, and the first transmission shaft is located at one end inside the condensation box and the middle of the third rotating shaft and is fixedly connected to a second bevel gear, and the two second bevel gears are meshed with each other.

[0018] Preferably, a second transmission shaft is rotatably connected to one end of the condensation box inside the exhaust pipe, the second transmission shaft is rotatably connected to the condensation box, a negative pressure wind wheel is fixedly connected to the top of the second transmission shaft, and a third bevel gear is fixedly connected to the bottom of the second transmission shaft and one end of the first transmission shaft, the two third bevel gears are meshed with each other, and the third bevel gear is located between the second bevel gear and the synchronous wheel.

[0019] Preferably, the inner wall of the condensation box is slidably connected to a rectangular gate plate at the exhaust pipe, a groove is provided in the middle of the rectangular gate plate, both ends of the bottom of the rectangular gate plate are fixedly connected to connecting arms, one end of the two connecting arms is commonly fixedly connected to a connecting plate, both ends of the connecting plate are fixedly connected to a second spring telescopic rod, the second spring telescopic rod is fixedly connected to the condensation box, and the second transmission shaft is fixedly connected to a cam at the connecting plate.

[0020] Preferably, the bottom of the side wall of the condensation tank is connected to a drain pipe, and an electric valve is installed at one end of the drain pipe.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention transports the coolant in the water tank through a water pump, allowing the coolant to flow into the condenser through a drain pipe, a conduit, an output pipe and a rectangular box, thereby lowering the temperature of the condenser, so as to condense the moisture in the humid air into liquid, and at the same time lower the temperature of the air. When the coolant flows in the conduit, it drives the turbine blades to rotate, thereby driving the second rotating shaft to rotate. At this time, the first transmission shaft rotates together with the second rotating shaft under the transmission action of the two first bevel gears. When the first transmission shaft rotates, it drives the synchronous wheel and the synchronous belt transmission, thereby driving the first transmission shaft to rotate together, thereby driving the reciprocating screw to rotate. When the reciprocating screw rotates, it drives the bushing to reciprocate, thereby driving the scraper to reciprocate. During the movement, the scraper can scrape off the liquid film attached to the surface of the condenser, thereby improving the heat exchange effect of the condenser.

[0023] The present invention can control the flow path of the cooling liquid through the design of the semicircular gate plates, wherein the first rotating shaft drives the two semicircular gate plates to rotate when the first rotating shaft rotates. When the two semicircular gate plates are rotated to the water outlet of the output pipe and the water inlet of the connecting pipe respectively, the cooling liquid cannot flow into the condenser tube. At this time, the hydraulic pressure inside the output pipe will gradually increase, and the blockage in the branch pipe will move downward under the push of the hydraulic pressure. At this time, the cooling liquid in the output pipe will flow into the branch pipe through the hole in the middle of the fixed ring, and directly flow into the connecting pipe through the branch pipe, and then flow into the heat dissipation pipe for heat dissipation. At this time, the cooling liquid in the water tank that has not been completely dissipated can be further cooled, thereby ensuring the subsequent cooling of the condenser tube. When the two semicircular gate plates are respectively moved away from the water outlet of the output pipe and the water inlet of the connecting pipe, the cooling liquid in the output pipe will flow into the rectangular box and then flow into the condenser tube, thereby replacing the cooling liquid with a higher temperature in the condenser tube.

[0024] The present invention can generate fluctuating negative pressure inside the condensation box and the switch cabinet through the design of the negative pressure wind wheel and the rectangular gate plate, wherein the second transmission shaft rotates together with the first transmission shaft under the transmission action of the two third bevel gears, thereby driving the negative pressure wind wheel to rotate, so that air circulates in the switch cabinet and the condensation box, and when the second transmission shaft rotates, it drives the cam to rotate. When the protruding part of the cam contacts the connecting plate, it pushes the connecting plate, the connecting arm and the rectangular gate plate to move. At this time, the second spring telescopic rod will contract. When the rectangular gate plate moves to the bottom of the exhaust pipe inlet, it will block the air in the condensation box from flowing into the exhaust pipe, thereby allowing the condensation box to The negative pressure inside the condenser decreases. When the protrusion of the cam separates from the connecting plate, the second spring telescopic rod will rebound and push the connecting plate, the connecting arm and the rectangular gate plate to move. When the rectangular gate plate is moved away from the air inlet of the exhaust pipe, the negative pressure in the condenser box will increase. During the reciprocating movement of the rectangular gate plate, fluctuating negative pressure can be generated in the condenser box and the switch cabinet. The pressure fluctuation promotes air turbulence in the switch cabinet and enhances the diffusion capacity of cold air, so that the air in the dead corners inside the switch cabinet can flow smoothly. At the same time, the dehumidified and cooled air in the condenser box can flow smoothly to the dead corners inside the switch cabinet, thereby ensuring the dehumidification and cooling effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the connection structure between the present invention and the switch cabinet;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 3 Schematic diagram of the side cross-section structure of the condensation box in the present invention;

[0028] Figure 4 Schematic diagram of the side cross-section structure of the rectangular box in the present invention;

[0029] Figure 5 Schematic diagram of the connection structure between the bushing and the scraper in the present invention;

[0030] Figure 6 Schematic diagram of the side cross-section structure of the conduit and branch pipe in the present invention;

[0031] Figure 7 Schematic diagram of the side cross-section structure of the exhaust pipe in the present invention;

[0032] Figure 8 It is a structural schematic diagram of the positional relationship between the cam and the connecting plate in the present invention.

[0033] In the figure: 1, condenser box; 2, condenser tube; 3, scraper; 4, first rotating shaft; 5, reciprocating screw; 6, bushing; 7, exhaust pipe; 8, intake pipe; 9, water tank; 10, water pump; 11, drain pipe; 12, guide tube; 13, output pipe; 14, return pipe; 15, heat pipe; 16, connecting pipe; 17, rectangular box; 18, semicircular gate; 19, branch pipe; 20, fixing ring; 21, first spring telescopic rod; 22, block; 23, first Second rotating shaft; 24, turbine blades; 25, first transmission shaft; 26, first bevel gear; 27, synchronous wheel; 28, synchronous belt; 29, third rotating shaft; 30, fan; 31, second bevel gear; 32, second transmission shaft; 33, negative pressure wind wheel; 34, third bevel gear; 35, rectangular gate; 36, groove; 37, connecting arm; 38, connecting plate; 39, second spring telescopic rod; 40, cam; 41, drain pipe; 42, electric valve. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] See also Figures 1-8 The present invention provides a technical solution: a fog-proof moisture-proof and heat-removing device for high and low voltage switchgear, comprising a condensation box 1, a scraper 3, a first rotating shaft 4, an exhaust pipe 7 and an air intake pipe 8. A plurality of condensation pipes 2 are fixedly connected to the middle of the condensation box 1. The scraper 3 is arranged inside the condensation box 1 and is slidably connected to the condensation pipe 2. The first rotating shaft 4 is rotatably connected to the inside of the condensation box 1. A reciprocating screw rod 5 is fixedly connected to the middle of the first rotating shaft 4. A bushing 6 is sleeved at one end of the reciprocating screw rod 5. The bushing 6 is fixedly connected to the middle of the scraper 3. The exhaust pipe 7 is fixedly connected to the top of the condensation box 1 and is communicated with the condensation box 1. The air intake pipe 8 is fixedly connected to the bottom of the side wall of the condensation box 1 and is communicated with the condensation box 1.

[0036] Specifically, when in use, the condensation box 1 needs to be fixedly connected to the side wall of the switch cabinet, and the exhaust pipe 7 is connected to the top of the switch cabinet, and the air inlet pipe 8 is connected to the bottom of the side wall of the switch cabinet. When there is foggy and humid weather, the humid air inside the switch cabinet is drawn into the condensation box 1. At this time, the humid air inside the switch cabinet will flow into the condensation box 1 through the air inlet pipe 8 and contact with the condensation pipe 2. Since the switch cabinet generates heat when in use, the temperature of the humid air will be relatively high. When the humid air with higher temperature contacts the condensation pipe 2 with lower temperature, it will condense into liquid, thereby removing moisture from the air. After the air contacts the condensation pipe 2, the heat in the air will be absorbed by the condensation pipe 2, thereby achieving a cooling effect. At this time, the dehumidified and cooled air will flow back into the switch cabinet through the exhaust pipe 7, and the cooled air can radiate the electrical components inside the switch cabinet. To cool down, after the condenser 2 has been used for a period of time, a liquid film will be formed on its surface. This liquid film will prevent the humid air from directly contacting the heat exchange tube, thereby affecting the heat exchange effect and then affecting the dehumidification effect. At this time, it is necessary to drive the first rotating shaft 4 to rotate, thereby driving the reciprocating screw 5 to rotate. When the reciprocating screw 5 rotates, it will drive the bushing 6 to move back and forth, thereby driving the scraper 3 to move back and forth. During the movement, the scraper 3 can scrape off the liquid film attached to the surface of the condenser 2, thereby improving the heat exchange effect of the condenser 2. A shuttle is installed inside the bushing 6, and the shuttle is slidably connected to the guide groove of the reciprocating screw 5. When the reciprocating screw 5 rotates, the shuttle will move back and forth under the guidance of the guide groove, thereby driving the bushing 6 to move back and forth. Driving the bushing 6 to move back and forth by the reciprocating screw 5 is a conventional technical means in this field and will not be explained in detail here.

[0037] like Figures 1 to 2 As shown, it also includes a water tank 9, one end of the water tank 9 is connected to a water pump 10, the output end of the water pump 10 is connected to a drain pipe 11, one end of the drain pipe 11 is connected to a conduit 12, the bottom of the conduit 12 is connected to an output pipe 13, one end of the top of the water tank 9 is connected to a return pipe 14, one end of the return pipe 14 is connected to a heat dissipation pipe 15, one end of the heat dissipation pipe 15 is connected to a connecting pipe 16, one end of the output pipe 13 and the connecting pipe 16 are both connected to rectangular boxes 17, the two rectangular boxes 17 are respectively provided at the two ends of the outside of the condensation tank 1 and are connected to the condensation pipe 2;

[0038] Specifically, when dehumidifying and cooling the air inside the switch cabinet, the coolant needs to be transported to the condenser 2. At this time, the water pump 10 is turned on. Under the action of the water pump 10, the coolant in the water tank 9 will flow into the condenser 2 through the drain pipe 11, the conduit 12, the output pipe 13 and the rectangular box 17 at one end of the output pipe 13, thereby reducing the temperature of the condenser 2. When the coolant passes through the condenser 2, it will absorb part of the heat of the air. At this time, the heat of the coolant will increase. After the coolant flows through the condenser 2, it will flow into the rectangular box 17 at one end of the connecting pipe 16, and then it will flow into the heat dissipation pipe 15 through the connecting pipe 16, thereby cooling the coolant with increased temperature. The surface of the heat dissipation pipe 15 is provided with multiple fins to increase the heat exchange area, thereby improving the heat dissipation effect. After the coolant passes through the heat dissipation pipe 15, it will pass through the return pipe 14 into the water tank 9.

[0039] like Figures 4 to 6 As shown, both ends of the first rotating shaft 4 extend into the interior of the rectangular box 17 and are rotatably connected to the rectangular box 17. Semicircular gate plates 18 are fixedly connected to both ends of the first rotating shaft 4. The bottom of the output tube 13 is located at one end adjacent to the rectangular box 17 and is connected to a branch tube 19. One end of the branch tube 19 is connected to the connecting tube 16. The branch tube 19 is located inside one end of the output tube 13 and is fixedly connected to a fixing ring 20. A first spring telescopic rod 21 is fixedly connected to the inside of the branch tube 19 below the fixing ring 20. A blocking block 22 is fixedly connected to the top of the first spring telescopic rod 21.

[0040] Specifically, since the coolant with increased temperature may not be completely dissipated after passing through the heat dissipation pipe 15 and flows into the water tank 9, thereby affecting the subsequent cooling effect on the condenser 2. At the same time, the temperature of the coolant will not immediately become very high when the coolant flows through the condenser 2. Therefore, the design of the semicircular gate 18 allows the coolant to stay in the condenser 2 for a period of time. When the first rotating shaft 4 rotates, it will drive the two semicircular gates 18 to rotate. When the two semicircular gates 18 rotate to the water outlet of the output pipe 13 and the water inlet position of the connecting pipe 16 respectively, the coolant cannot flow into the condenser 2. At this time, the hydraulic pressure inside the output pipe 13 will gradually increase under the continuous delivery of the water pump 10. Under the push of the hydraulic pressure, the block 22 in the branch pipe 19 will move downward. At this time, the first spring telescopic rod 21 will contract. At this time, the coolant in the output pipe 13 will flow into the branch pipe 19 through the hole in the middle of the fixing ring 20, and directly flow into the connecting pipe 16 through the branch pipe 19, and then flow into the heat dissipation pipe 15. The cooling liquid in the water tank 9 that has not been completely cooled can be further cooled to ensure the subsequent cooling of the condenser 2. When the two semicircular gates 18 are moved away from the water outlet of the output pipe 13 and the water inlet of the connecting pipe 16, the cooling liquid in the output pipe 13 will flow into the rectangular box 17, and then into the condenser 2, and push the cooling liquid with increased temperature in the condenser 2 to flow into the rectangular box 17 at one end of the connecting pipe 16, so that the cooling liquid with increased temperature can pass through the rectangular box 17. The connecting pipe 16, the heat dissipation pipe 15 and the return pipe 14 return to the water tank 9 to replace the coolant in the condenser 2, thereby ensuring the condensation effect of the condenser 2. When the two semicircular gates 18 are respectively moved away from the water outlet of the output pipe 13 and the water inlet of the connecting pipe 16, the hydraulic pressure in the output pipe 13 will gradually decrease. At this time, the first spring telescopic rod 21 will rebound and push the block 22 to block the hole in the middle of the fixing ring 20, thereby preventing the coolant with lower temperature from flowing into the branch pipe 19.

[0041] like Figures 4 to 6 As shown, the inside of the conduit 12 is rotatably connected to a second rotating shaft 23, the top of the second rotating shaft 23 is fixedly connected to a turbine blade 24, one end of the side wall of the conduit 12 is rotatably connected to a first transmission shaft 25, the bottom of the second rotating shaft 23 and one end of the first transmission shaft 25 located inside the conduit 12 are both fixedly connected to a first bevel gear 26, the two first bevel gears 26 are meshed with each other, one end of the first transmission shaft 25 extends into the interior of the condensation tank 1 and is rotatably connected to the condensation tank 1, one end of the first transmission shaft 25 and the first rotating shaft 4 are both fixedly connected to a synchronous wheel 27, and the two synchronous wheels 27 are driven by a synchronous belt 28;

[0042] Specifically, when the coolant flows in the conduit 12, it will drive the turbine blades 24 to rotate, thereby driving the second rotating shaft 23 to rotate. At this time, the first transmission shaft 25 will rotate together with the second rotating shaft 23 under the transmission action of the two first bevel gears 26. At this time, the first rotating shaft 4 will rotate together with the first transmission shaft 25 under the transmission action of the synchronous wheel 27 and the synchronous belt 28, thereby driving the reciprocating screw 5 to rotate.

[0043] like Figures 2 to 4 As shown, one end of the interior of the condenser box 1 is rotatably connected to a third rotating shaft 29, one end of the third rotating shaft 29 extends to the outside of the condenser box 1 and is fixedly connected to a fan 30. The fan 30 is located adjacent to the heat dissipation pipe 15. The first transmission shaft 25 is located at one end inside the condenser box 1 and the middle of the third rotating shaft 29 are fixedly connected to a second bevel gear 31. The two second bevel gears 31 are meshed with each other.

[0044] Specifically, when the first transmission shaft 25 rotates, it will drive the second bevel gear 31 to rotate, wherein the third rotating shaft 29 will rotate together with the first transmission shaft 25 under the transmission action of the two second bevel gears 31, thereby driving the fan 30 to rotate. When the fan 30 rotates, it can accelerate the air flow on the surface of the heat pipe 15, thereby improving the heat dissipation efficiency of the heat pipe 15.

[0045] like Figures 7 and 8 As shown, the exhaust pipe 7 is located inside the condensation box 1 and is rotatably connected to a second transmission shaft 32 at one end. The second transmission shaft 32 is rotatably connected to the condensation box 1. A negative pressure wind wheel 33 is fixedly connected to the top of the second transmission shaft 32. The bottom of the second transmission shaft 32 and one end of the first transmission shaft 25 are fixedly connected to a third bevel gear 34. The two third bevel gears 34 are meshed with each other. The third bevel gear 34 is located between the second bevel gear 31 and the synchronous wheel 27; the inner wall of the condensation box 1 is located at the exhaust pipe 7 and is slidably connected to a rectangular gate plate 35. A groove 36 is provided in the middle of the rectangular gate plate 35. The two ends of the bottom of the rectangular gate plate 35 are respectively fixedly connected to connecting arms 37. One end of the two connecting arms 37 is commonly fixedly connected to a connecting plate 38. The two ends of the connecting plate 38 are respectively fixedly connected to second spring telescopic rods 39. The second spring telescopic rod 39 is fixedly connected to the condensation box 1. The second transmission shaft 32 is fixedly connected to a cam 40 at the connecting plate 38.

[0046] Specifically, when the first transmission shaft 25 rotates, it will drive the third bevel gear 34 to rotate. At this time, the second transmission shaft 32 will rotate along with the first transmission shaft 25 under the transmission action of the two third bevel gears 34, thereby driving the negative pressure fan wheel 33 to rotate. When the negative pressure fan wheel 33 rotates, it can extract the dehumidified and cooled air in the condensation box 1 and transport it to the inside of the switch cabinet through the exhaust pipe 7. At this time, negative pressure will be generated inside the condensation box 1. Under the action of negative pressure, the humid and high-temperature air inside the switch cabinet will flow into the condensation box 1 through the air inlet pipe 8, so that the air can be discharged between the switch cabinet and the condensation box. The air circulates in the condensation box 1. Since the exhaust pipe 7 and the air inlet pipe 8 are fixed in position on the switch cabinet, it is difficult to ensure the air flow in the dead corners inside the switch cabinet (such as the gaps between electrical components) when the negative pressure impeller 33 rotates. In this way, the humid and high-temperature air in the dead corners is difficult to flow into the condensation box 1 for dehumidification and cooling. At the same time, the air in the condensation box 1 that has been dehumidified and cooled is also difficult to flow to the dead corners inside the switch cabinet. Therefore, the negative pressure inside the condensation box 1 is adjusted by the design of the cam 40 and the rectangular gate 35. When the second transmission shaft 32 rotates, The cam 40 is driven to rotate. When the protruding portion of the cam 40 contacts the connecting plate 38, it pushes the connecting plate 38, the connecting arm 37 and the rectangular gate 35 to move. At this time, the second spring telescopic rod 39 will contract. When the rectangular gate 35 moves below the air inlet of the exhaust pipe 7, it will block the air in the condensation box 1 from flowing into the exhaust pipe 7, thereby reducing the negative pressure in the condensation box 1. The design of the groove 36 prevents the second transmission shaft 32 from blocking the movement of the rectangular gate 35. When the protruding portion of the cam 40 separates from the connecting plate 38, the second spring telescopic rod 39 will rebound. And push the connecting plate 38, the connecting arm 37 and the rectangular gate 35 to move. When the rectangular gate 35 is moved away from the air inlet of the exhaust pipe 7, the negative pressure in the condensation box 1 will increase. During the reciprocating movement of the rectangular gate 35, a fluctuating negative pressure can be generated in the condensation box 1 and the switch cabinet. The pressure fluctuation promotes air turbulence in the switch cabinet and enhances the diffusion capacity of cold air, so that the air in the dead corners inside the switch cabinet can flow smoothly. At the same time, the dehumidified and cooled air in the condensation box 1 can flow smoothly to the dead corners inside the switch cabinet, thereby ensuring the dehumidification and cooling effects.

[0047] like Figure 2 As shown, the bottom of the side wall of the condensation tank 1 is connected to a drain pipe 41, and an electric valve 42 is installed at one end of the drain pipe 41;

[0048] Specifically, when the condenser 2 condenses the moisture in the humid air into liquid, the liquid moisture will drip to the bottom of the condensation box 1. When a certain amount of moisture accumulates inside the condensation box 1, the electric valve 42 can be opened to allow the moisture to be discharged smoothly through the drain pipe 41. When the moisture in the condensation box 1 is emptied, the electric valve 42 is closed to prevent the external humid air from flowing into the condensation box 1. In actual use, a liquid level sensor can be installed in the condensation box 1 to control the opening and closing of the electric valve 42.

[0049] Working principle: When in use, when there is heavy fog and humid weather, the water pump 10 is turned on. Under the action of the water pump 10, the coolant in the water tank 9 will flow into the condenser 2 through the drain pipe 11, the conduit 12, the output pipe 13 and the rectangular box 17 at one end of the output pipe 13, thereby lowering the temperature of the condenser 2 so as to condense the moisture in the humid air into liquid. When the coolant passes through the condenser 2, it will absorb part of the heat of the air. At this time, the heat of the coolant will increase. When the coolant flows through the condenser 2, it will flow into the rectangular box 17 at one end of the connecting pipe 16, and then it will flow into the heat pipe 15 through the connecting pipe 16, thereby cooling the coolant with increased temperature. To cool down, after the coolant passes through the heat pipe 15, it will pass through the water tank 9 of the return pipe 14. When the coolant flows in the conduit 12, it will drive the turbine blades 24 to rotate, thereby driving the second rotating shaft 23 to rotate. At this time, the first transmission shaft 25 will rotate together with the second rotating shaft 23 under the transmission action of the two first bevel gears 26. When the first transmission shaft 25 rotates, it will drive the second bevel gear 31 to rotate. Among them, the third rotating shaft 29 will rotate together with the first transmission shaft 25 under the transmission action of the two second bevel gears 31, thereby driving the fan 30 to rotate. When the fan 30 rotates, it can accelerate the air flow on the surface of the heat pipe 15, thereby improving the heat dissipation efficiency of the heat pipe 15;

[0050] When the first transmission shaft 25 rotates, it drives the third bevel gear 34 to rotate. At this time, the second transmission shaft 32 rotates along with the first transmission shaft 25 under the transmission action of the two third bevel gears 34, thereby driving the negative pressure wind wheel 33 to rotate. When the negative pressure wind wheel 33 rotates, it can extract the dehumidified and cooled air in the condensation box 1 and transport it to the inside of the switch cabinet through the exhaust pipe 7. At this time, negative pressure will be generated inside the condensation box 1. Under the action of negative pressure, the humid and high-temperature air inside the switch cabinet will flow into the condensation box 1 through the air inlet pipe 8, so that the air circulates in the switch cabinet and the condensation box 1. The humid air inside the switch cabinet will flow into the condensation box 1 through the air inlet pipe 8 and come into contact with the condensation pipe 2. Since the switch cabinet generates heat when in use, the temperature of the humid air will be relatively high. When the high-temperature humid air comes into contact with the low-temperature condensation pipe 2, it will condense into liquid, thereby removing the moisture in the air. After the air comes into contact with the condensation pipe 2, the heat in the air will be absorbed by the condensation pipe 2, thereby achieving a cooling effect. At this time, the dehumidified and cooled air will flow back into the switch cabinet through the exhaust pipe 7. The cooled air can cool the electrical components inside the switch cabinet.

[0051] When the first transmission shaft 25 rotates, it will drive the synchronous wheel 27 and the synchronous belt 28 to drive, thereby driving the first transmission shaft 25 to rotate together, thereby driving the reciprocating screw 5 to rotate, and the reciprocating screw 5 will drive the bushing 6 to move back and forth when it rotates, thereby driving the scraper 3 to move back and forth, and the scraper 3 can scrape off the liquid film attached to the surface of the condenser 2 during the movement, thereby improving the heat exchange effect of the condenser 2. When the first rotating shaft 4 rotates, it will drive the two semicircular gates 18 to rotate. When the two semicircular gates When the water pump 10 rotates to the water outlet of the output pipe 13 and the water inlet of the connecting pipe 16 respectively, the coolant cannot flow into the condenser 2. At this time, the hydraulic pressure inside the output pipe 13 will gradually increase under the continuous delivery of the water pump 10. Under the push of the hydraulic pressure, the block 22 in the branch pipe 19 will move downward. At this time, the first spring telescopic rod 21 will contract. At this time, the coolant in the output pipe 13 will flow into the branch pipe 19 through the hole in the middle of the fixing ring 20, and directly flow into the connecting pipe 16 through the branch pipe 19. Then The coolant in the water tank 9 that has not been completely cooled can be further cooled, thereby ensuring the subsequent cooling of the condenser 2. When the two semicircular gates 18 are moved away from the water outlet of the output pipe 13 and the water inlet of the connecting pipe 16, the coolant in the output pipe 13 will flow into the rectangular box 17, and then into the condenser 2, and push the coolant with increased temperature in the condenser 2 to flow into the rectangular box 17 at one end of the connecting pipe 16, so that the coolant with increased temperature can be cooled. The liquid can flow back into the water tank 9 through the connecting pipe 16, the heat dissipation pipe 15 and the return pipe 14, thereby replacing the coolant in the condenser 2, thereby ensuring the condensation effect of the condenser 2. When the two semicircular gates 18 are respectively moved away from the water outlet of the output pipe 13 and the water inlet of the connecting pipe 16, the hydraulic pressure in the output pipe 13 will gradually decrease. At this time, the first spring telescopic rod 21 will rebound and push the blocking block 22 to block the hole in the middle of the fixing ring 20, thereby preventing the coolant with lower temperature from flowing into the branch pipe 19.

[0052] When the second transmission shaft 32 rotates, it drives the cam 40 to rotate. When the protrusion of the cam 40 contacts the connecting plate 38, it pushes the connecting plate 38, the connecting arm 37 and the rectangular gate 35 to move. At this time, the second spring telescopic rod 39 will contract. When the rectangular gate 35 moves to the bottom of the air inlet of the exhaust pipe 7, it will block the air in the condensation box 1 from flowing into the exhaust pipe 7, thereby reducing the negative pressure in the condensation box 1. When the protrusion of the cam 40 separates from the connecting plate 38, the second spring telescopic rod 39 will rebound and push the connecting plate 38, the connecting arm 37 and the rectangular gate 35 to move. The connecting arm 37 and the rectangular gate plate 35 move. When the rectangular gate plate 35 is removed from the air inlet of the exhaust pipe 7, the negative pressure in the condensation box 1 will increase. During the reciprocating movement of the rectangular gate plate 35, a fluctuating negative pressure can be generated in the condensation box 1 and the switch cabinet. The pressure fluctuation promotes air turbulence in the switch cabinet and enhances the diffusion capacity of the cold air, so that the air in the dead corners inside the switch cabinet can flow smoothly. At the same time, the dehumidified and cooled air in the condensation box 1 can flow smoothly to the dead corners inside the switch cabinet, thereby ensuring the dehumidification and cooling effects.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foggy weather moisture-proof and heat-removing device for high and low voltage switchgear, characterized in that: include: A condensation box (1), wherein a plurality of condensation tubes (2) are fixedly connected to the middle portion of the condensation box (1); A scraper (3) is arranged inside the condensation box (1) and is slidably connected to the condensation pipe (2); A first rotating shaft (4) is rotatably connected to the interior of the condensation box (1); a reciprocating screw rod (5) is fixedly connected to the middle of the first rotating shaft (4); a bushing (6) is sleeved on one end of the reciprocating screw rod (5); and the bushing (6) is fixedly connected to the middle of the scraper (3); An exhaust pipe (7) is fixedly connected to the top of the condensation tank (1) and communicates with the condensation tank (1); The air inlet pipe (8) is fixedly connected to the bottom of the side wall of the condensation box (1) and is communicated with the condensation box (1).

2. The foggy weather moisture-proof and heat-removing device for high and low voltage switchgear according to claim 1, characterized in that: The invention also includes a water tank (9), one end of the water tank (9) is connected to a water pump (10), the output end of the water pump (10) is connected to a drain pipe (11), one end of the drain pipe (11) is connected to a conduit (12), the bottom of the conduit (12) is connected to an output pipe (13), one end of the top of the water tank (9) is connected to a return pipe (14), one end of the return pipe (14) is connected to a heat dissipation pipe (15), one end of the heat dissipation pipe (15) is connected to a connecting pipe (16), one end of each of the output pipe (13) and the connecting pipe (16) is connected to a rectangular box (17), and the two rectangular boxes (17) are respectively arranged at the two ends of the outside of the condensation tank (1) and are connected to the condensation pipe (2).

3. The foggy weather moisture-proof and heat-removing device for high and low voltage switchgear according to claim 2, characterized in that: Both ends of the first rotating shaft (4) extend into the interior of the rectangular box (17) and are rotatably connected to the rectangular box (17). Both ends of the first rotating shaft (4) are fixedly connected with semicircular gate plates (18).

4. The foggy weather moisture-proof and heat-removing device for high and low voltage switchgear according to claim 3, characterized in that: The bottom of the output pipe (13) is located adjacent to one end of the rectangular box (17) and is connected to a branch pipe (19), and one end of the branch pipe (19) is connected to the connecting pipe (16).

5. The foggy weather moisture-proof and heat-removing device for high and low voltage switchgear according to claim 4, characterized in that: The branch pipe (19) is fixedly connected to a fixing ring (20) inside one end of the output pipe (13); a first spring telescopic rod (21) is fixedly connected to the inside of the branch pipe (19) below the fixing ring (20); and a blocking block (22) is fixedly connected to the top of the first spring telescopic rod (21).

6. The foggy weather moisture-proof and heat-removing device for high and low voltage switchgear according to claim 5, characterized in that: The inside of the conduit (12) is rotatably connected to a second rotating shaft (23), the top of the second rotating shaft (23) is fixedly connected to a turbine blade (24), one end of the side wall of the conduit (12) is rotatably connected to a first transmission shaft (25), the bottom of the second rotating shaft (23) and one end of the first transmission shaft (25) located inside the conduit (12) are both fixedly connected to a first bevel gear (26), the two first bevel gears (26) are meshed with each other, one end of the first transmission shaft (25) extends to the inside of the condensation box (1) and is rotatably connected to the condensation box (1), one end of the first transmission shaft (25) and the first rotating shaft (4) are both fixedly connected to a synchronous wheel (27), and the two synchronous wheels (27) are driven by a synchronous belt (28).

7. The foggy weather moisture-proof and heat-removing device for high and low voltage switchgear according to claim 6, characterized in that: One end of the interior of the condenser box (1) is rotatably connected to a third rotating shaft (29), one end of the third rotating shaft (29) extends to the outside of the condenser box (1) and is fixedly connected to a fan (30), and the fan (30) is located adjacent to the heat dissipation pipe (15). The first transmission shaft (25) is located at one end of the interior of the condenser box (1) and the middle of the third rotating shaft (29) are both fixedly connected to a second bevel gear (31), and the two second bevel gears (31) are meshed with each other.

8. The foggy weather moisture-proof and heat-removing device for high and low voltage switchgear according to claim 7, characterized in that: A second transmission shaft (32) is rotatably connected to one end of the condensation box (1) inside the exhaust pipe (7); the second transmission shaft (32) is rotatably connected to the condensation box (1); a negative pressure wind wheel (33) is fixedly connected to the top of the second transmission shaft (32); a third bevel gear (34) is fixedly connected to the bottom of the second transmission shaft (32) and one end of the first transmission shaft (25); the two third bevel gears (34) are meshed with each other, and the third bevel gear (34) is located between the second bevel gear (31) and the synchronous wheel (27).

9. The foggy weather moisture-proof and heat-removing device for high and low voltage switchgear according to claim 8, characterized in that: A rectangular gate plate (35) is slidably connected to the inner wall of the condensation box (1) at the exhaust pipe (7), a groove (36) is provided in the middle of the rectangular gate plate (35), connecting arms (37) are fixedly connected to the two ends of the bottom of the rectangular gate plate (35), one end of the two connecting arms (37) is fixedly connected to a connecting plate (38), and the two ends of the connecting plate (38) are fixedly connected to second spring telescopic rods (39), the second spring telescopic rod (39) is fixedly connected to the condensation box (1), and the second transmission shaft (32) is fixedly connected to a cam (40) at the connecting plate (38).

10. The foggy weather moisture-proof and heat-removing device for high and low voltage switchgear according to claim 9, characterized in that: The bottom of the side wall of the condensation box (1) is connected to a drain pipe (41), and an electric valve (42) is installed at one end of the drain pipe (41).

Images