A smart low-voltage switchgear for a potassium sulfate production line

Abstract

This invention discloses an intelligent low-voltage switchgear for a potassium sulfate production line, belonging to the field of potassium sulfate production technology. It includes a cabinet, with an auxiliary plate bolted to the rear side of the cabinet. An electric telescopic rod is fixedly connected inside the auxiliary plate, and a material box is bolted to the rear side of the cabinet. Furthermore, a circulating cooling pipe is fixedly connected to the rear side of the cabinet. When cooling is required, the electric telescopic rod is activated, and an air supply pipe supplies air to the material box. A movable plate then forces low-temperature air into the circulating cooling pipe. The airflow and the circulating cooling pipe cool the cabinet. Simultaneously, the pressure plate is pushed by the airflow, causing the baffle to rotate reciprocally, intermittently opening and closing the heat dissipation mesh at the baffle position. Meanwhile, the airbag expels heat from inside the cabinet through the air inlet and outlet pipes, creating a multi-layered heat dissipation structure inside the cabinet. Furthermore, when the fan operates, it disrupts the air stagnation layer, allowing the cool air to better cool the cabinet.

Description

Technical Field

[0001] This invention relates to the field of potassium sulfate production technology, specifically to an intelligent low-voltage switchgear for a potassium sulfate production line. Background Technology

[0002] Potassium sulfate is a high-quality, chlorine-free potassium fertilizer that can improve crop yield and quality, enhance stress resistance, and is suitable for chlorine-sensitive crops such as tobacco, fruit trees, and vegetables. It is also used in industrial manufacturing, pharmaceuticals, and glass production. Potassium sulfate production involves continuous operation and stringent parameters, requiring the use of a DCS control cabinet and an intelligent low-voltage switchgear. The DCS control cabinet enables centralized monitoring and automatic adjustment of the process, precisely controlling the reaction and crystallization processes to ensure safety, stability, and reduce energy consumption. The intelligent low-voltage switchgear ensures safe power supply and intelligent start-stop of the equipment. Together, they ensure stable and efficient production. However, during prolonged high-load operation, the internal temperature of the intelligent low-voltage switchgear rises, necessitating heat dissipation protection. For example, Chinese utility model patent application number 202022277309.9, filed on October 14, 2020, describes a heat-dissipating low-voltage switchgear. When dissipating heat from the inside of the switchgear, an exhaust fan operates, drawing gas from the switchgear through inlet one and inlet two into the distribution pipe one and the distribution pipe two. The gas enters the guide pipe and is discharged through the outlet, thus extracting the hot air from the low-voltage switchgear body and accelerating heat dissipation, thereby improving heat dissipation efficiency. There is also a Chinese utility model patent application with application number 201921422148.9, filed on 2019-08-29, which describes an automatic heat dissipation low-voltage switchgear that effectively dissipates and cools the equipment inside. This low-voltage switchgear does not accumulate heat during operation; the heat is effectively transferred to the outside of the cabinet, extending the service life of the equipment and maintaining its effective operation. And there is a Chinese utility model patent application with application number 202121634852.8, filed on 2021-07-17, which describes a high-efficiency heat dissipation low-voltage switchgear. It installs two axial flow fan covers on the front lower door and rear upper door of the low-voltage switchgear to further ventilate and dissipate heat inside the cabinet, preventing excessively high internal temperatures from affecting normal operation.

[0003] In complex and high-voltage operating conditions, a single heat dissipation effect is insufficient to achieve efficient heat dissipation of intelligent low-voltage switchgear. The device in the above application has a single heat dissipation structure and poor heat dissipation effect during use, making it difficult to guarantee the normal operation of the intelligent low-voltage switchgear. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent low-voltage switchgear for a potassium sulfate production line, in order to solve the problem mentioned in the background art that the heat dissipation structure is simple and the heat dissipation effect is poor, making it difficult to ensure the normal operation of the intelligent low-voltage switchgear in the future.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent low-voltage switchgear for a potassium sulfate production line, comprising a cabinet, an auxiliary plate bolted to the rear side of the cabinet, an electric telescopic rod fixedly connected inside the auxiliary plate, a material box bolted to the rear side of the cabinet, and a circulating cooling pipe fixedly connected to the rear side of the cabinet; a baffle connected to the cabinet via a reciprocating assembly, which opens the heat dissipation vents on the surface of the cabinet at high temperatures to improve heat dissipation; an outer pipe fixedly connected to the outer wall of the cabinet, with an inner rod movably installed inside the outer pipe; a protective frame fixedly connected to the outer wall of the cabinet, with an airbag bonded to the inner wall of the protective frame, and an air blowing pipe provided on the surface of the airbag; and a rotating shaft rotatably connected to the inner wall of the cabinet via a rotating assembly, with a fan fixedly connected to the end of the rotating shaft, and an air guide pipe fixedly connected to the inner wall of the cabinet.

[0006] Preferably, the output end of the electric telescopic rod is fixedly connected to a docking plate, and the lower surface of the docking plate is connected to a movable plate via a long rod. The upper surface of the movable plate is fixedly connected to an air supply pipe, which is connected to the output end of an external air supply device to provide low-temperature air into the material box.

[0007] Preferably, the movable plate is slidably disposed inside the material box, and a limiting post is fixedly connected to the inner wall of the material box, and the limiting post and the movable plate are slidably connected.

[0008] Preferably, a force-bearing plate is fixedly connected to the lower surface of the inner rod, the circulating cooling pipe has a bent structure, and the end of the circulating cooling pipe is initially in contact with the lower surface of the force-bearing plate.

[0009] Preferably, the reciprocating assembly includes a connecting shaft rotatably disposed on the outside of the cabinet, and the connecting shaft is fixedly connected to the baffle. In addition, an external rod is fixedly connected to the surface of the baffle.

[0010] Preferably, both sides of the inner rod are rotatably connected to levers. Furthermore, the surface of the levers is in contact with the inner wall of the outer rod, and the contact position between the outer rod and the levers is inclined. In addition, the cabinet is provided with a heat dissipation mesh at the position of the baffle.

[0011] Preferably, a push plate is fixedly connected to the end of the inner rod, and the end of the push plate is in contact with the lower surface of the airbag, while the air blowing tubes are evenly distributed on the surface of the airbag.

[0012] Preferably, an air inlet pipe is provided on the upper side of the airbag, and both the air inlet pipe and the air blowing pipe are located inside the cabinet. At the same time, a one-way valve is provided on the surface of both the air inlet pipe and the air blowing pipe.

[0013] Preferably, the rotating assembly includes a rack plate fixedly connected to the surface of the inner rod, a gear meshing with the rack plate is fixedly connected to the end of the rotating shaft, and a protective cover is fixedly connected to the outer wall of the cabinet, covering the rack plate and the gear.

[0014] Preferably, the end of the air guide tube is located inside the outer tube, and a return spring is fixedly connected to the inner wall of the outer tube, and the other side of the return spring is fixedly connected to the upper surface of the force plate.

[0015] Compared with the prior art, the beneficial effects of this invention are as follows: Adopting a novel structural design, when cooling of the cabinet is required, the electric telescopic rod is activated, and simultaneously, the air supply pipe supplies air to the material box. The movable plate then forces low-temperature air into the circulating cooling pipe. At this time, the airflow and the circulating cooling pipe cool the cabinet. Simultaneously, the force plate is pushed by the airflow, causing the baffle to rotate back and forth, intermittently opening and closing the heat dissipation mesh at the baffle position. At the same time, the airbag expels heat from inside the cabinet through the air inlet pipe and the air outlet pipe, giving the cabinet a multi-layered heat dissipation structure. Furthermore, when the fan is working, it can disrupt the air stagnation layer, allowing the cool air to better cool the cabinet. The specific details are as follows:

[0016] (1) The intelligent low-voltage switch cabinet of the potassium sulfate production line is equipped with a temperature sensor controller on the inner wall of the cabinet and is connected to the electric telescopic rod by an electrical signal. After the internal temperature of the cabinet exceeds the set value, the electric telescopic rod is started, and at the same time the air supply pipe supplies air to the material box. At this time, the movable plate presses the low-temperature air into the circulating cooling pipe, and the low-temperature air and the circulating cooling pipe provide efficient cooling for the cabinet.

[0017] Furthermore, the circulating cooling pipes are distributed in a bent pattern, which increases the contact area between the circulating cooling pipes and the cabinet, allowing for better heat dissipation.

[0018] (2) In the intelligent low-voltage switch cabinet of the potassium sulfate production line, after the airflow enters the inner tube, the force plate will be pushed. At this time, under the action of the force plate, the airflow and the reset spring, it will make reciprocating linear motion in the vertical direction. Then the inner rod will drive the baffle to rotate through the lever and the outer rod. Then the heat dissipation net at the baffle position will open intermittently. At this time, the hot air inside the cabinet will be discharged through the heat dissipation net, and the cabinet will have multiple cooling effects.

[0019] Furthermore, as the inner rod moves, the airbag is intermittently squeezed by the push plate. When the baffle opens, the airbag blows air through the air pipe to expel the hot air inside the cabinet. This not only optimizes the cooling effect, but also the airflow carries away impurities from the surface of the heat dissipation mesh, causing the impurities to fall to the outside of the cabinet, leaving no impurities inside. This, in special environments, prevents the electronic components inside the cabinet from being corroded.

[0020] (3) When the inner rod moves in the vertical direction, it will drive the rack plate to move synchronously in the vertical direction. Then, the rotating shaft will rotate inside the cabinet under the action of the rack plate and gear. At this time, the fan will rotate synchronously, so that the fan can efficiently break the air stagnation layer and make the cold air better contact with the hot air inside the cabinet, thus optimizing the heat dissipation effect.

[0021] Furthermore, within the cabinet, the fan works in conjunction with the cold air and airbags to achieve multiple cooling effects, avoiding the limitations of single-mode heat dissipation. This allows the cabinet to function better, while also preventing external impurities from entering the cabinet, thus avoiding corrosion and extending the overall lifespan of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connection structure between the cabinet and the material box of the present invention;

[0023] Figure 2 This is a schematic diagram of the connection structure between the cabinet body and the electric telescopic rod of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection structure between the material box and the limiting post of the present invention;

[0025] Figure 4 This is a schematic diagram of the working structure of the movable plate of the present invention;

[0026] Figure 5 This is a schematic diagram of the outer tube in a cross-sectional state according to the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0028] Figure 7 This is a schematic diagram of the baffle in its unfolded state according to the present invention;

[0029] Figure 8 This is a schematic diagram of the connection structure between the airbag and the protective frame of the present invention;

[0030] Figure 9 This is a schematic diagram of the shaft and gear connection structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the connection structure between the cabinet and the fan in this invention.

[0032] In the diagram: 1. Cabinet; 2. Auxiliary plate; 3. Electric telescopic rod; 4. Connecting plate; 5. Air supply pipe; 6. Material box; 7. Circulating cooling pipe; 8. Movable plate; 9. Limiting post; 10. Outer pipe; 11. Inner rod; 12. Force plate; 13. Push plate; 14. Connecting shaft; 15. Baffle; 16. External rod; 17. Lever; 18. Protective frame; 19. Airbag; 20. Air blowing pipe; 21. Protective cover; 22. Rotating shaft; 23. Fan; 24. Gear; 25. Rack plate; 26. Air guide pipe; 27. Return spring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-10 The present invention provides the following technical solution: an intelligent low-voltage switchgear for a potassium sulfate production line.

[0035] Example 1: The movable plate 8 allows cold air to quickly enter the interior of cabinet 1, effectively cooling cabinet 1. Figures 1-4 As shown, the cabinet includes a cabinet body 1, an auxiliary plate 2 is bolted to the rear side of the cabinet body 1, and an electric telescopic rod 3 is fixedly connected inside the auxiliary plate 2. A material box 6 is bolted to the rear side of the cabinet body 1. In addition, a circulating cooling pipe 7 is fixedly connected to the rear side of the cabinet body 1. The end of the air guide pipe 26 is located inside the outer pipe 10, and a return spring 27 is fixedly connected to the inner wall of the outer pipe 10. The other side of the return spring 27 is fixedly connected to the upper surface of the force plate 12.

[0036] The output end of the electric telescopic rod 3 is fixedly connected to the docking plate 4, and the lower surface of the docking plate 4 is connected to the movable plate 8 via a long rod. The upper surface of the movable plate 8 is fixedly connected to the air supply pipe 5, which is connected to the output end of the external air supply device to supply low-temperature air into the material box 6.

[0037] The movable plate 8 is slidably disposed inside the material box 6, and the inner wall of the material box 6 is fixedly connected to the limiting post 9, and the limiting post 9 and the movable plate 8 are slidably connected; the lower surface of the inner rod 11 is fixedly connected to the force plate 12, the circulating cooling pipe 7 is a bent structure, and the end of the circulating cooling pipe 7 is initially in contact with the lower surface of the force plate 12.

[0038] A temperature sensor controller is installed on the inner wall of the cabinet 1, which is electrically connected to the electric telescopic rod 3. After the internal temperature of the cabinet 1 exceeds the set value, the air supply pipe 5 first supplies air to the material box 6, and then the electric telescopic rod 3 is activated. At this time, the movable plate 8 pressurizes the low-temperature air into the circulating cooling pipe 7. The low-temperature air and the circulating cooling pipe 7 efficiently cool the cabinet 1. At the same time, the circulating cooling pipe 7 is bent, which increases the contact area between the circulating cooling pipe 7 and the cabinet 1, and can better remove heat.

[0039] Example 2: Unlike Example 1, the reciprocating assembly allows the baffle 15 to open and close intermittently, thus rapidly expelling hot air from inside the cabinet 1 under air pressure. Figures 5-7 As shown, the baffle 15 is connected to the cabinet 1 via a reciprocating assembly. When the temperature is high, it opens the heat dissipation vents on the surface of the cabinet 1 to improve the heat dissipation effect. In addition, an outer tube 10 is fixedly connected to the outer wall of the cabinet 1, and an inner rod 11 is movably arranged inside the outer tube 10. The reciprocating assembly includes a connecting shaft 14 rotatably arranged on the outside of the cabinet 1, and the connecting shaft 14 is fixedly connected to the baffle 15. In addition, an external rod 16 is fixedly connected to the surface of the baffle 15.

[0040] Both sides of the inner rod 11 are rotatably connected to levers 17. Furthermore, the surface of the levers 17 is in contact with the inner wall of the outer rod 16, and the contact position between the outer rod 16 and the levers 17 is inclined. In addition, the cabinet 1 is provided with a heat dissipation mesh at the position of the baffle 15.

[0041] When cold air enters the outer tube 10, it pushes the force plate 12 and inner rod 11 inside the outer tube 10. When the force plate 12 and inner rod 11 are pushed, they rise (at this time, the return spring 27 is squeezed). When the air duct 26 is opened, cold air enters the cabinet 1 and cools the cabinet 1. At this time, the force plate 12 and inner rod 11 descend and reset under the action of the return spring 27 (when the force plate 12 resets, the electric telescopic rod 3 also drives the movable plate 8 to reset). Consequently, the force plate 12 and the inner rod 11 will reciprocate linearly in the vertical direction. At this time, the inner rod 11 will drive the baffle 15 to work through the lever 17 and the outer rod 16. When the lever 17 rises, the lever 17 drives the baffle 15 and the connecting shaft 14 to rotate through the outer rod 16. When the lever 17 falls, the baffle 15 and the connecting shaft 14 rotate under their own gravity. As a result, the heat dissipation mesh at the position of the baffle 15 opens intermittently, which better realizes air convection and optimizes the heat dissipation effect of the cabinet 1.

[0042] Example 3: Unlike Example 2, the airbag 19 allows for better transfer of air from inside cabinet 1 to the outside, thus aiding in cooling. Figure 8 As shown,

[0043] The protective frame 18 is fixedly connected to the outer wall of the cabinet 1, and an airbag 19 is bonded to the inner wall of the protective frame 18, and an air blowing pipe 20 is provided on the surface of the airbag 19.

[0044] The end of the inner rod 11 is fixedly connected to a push plate 13, and the end of the push plate 13 is in contact with the lower surface of the airbag 19. Meanwhile, the air blowing pipes 20 are evenly distributed on the surface of the airbag 19. An air inlet pipe is provided on the upper side of the airbag 19, and both the air inlet pipe and the air blowing pipe 20 are located inside the cabinet 1. Meanwhile, one-way valves are provided on the surface of both the air inlet pipe and the surface of the air blowing pipe 20.

[0045] When the inner rod 11 rises, it drives the push plate 13 to rise synchronously. When the push plate 13 rises, it squeezes the airbag 19 on the inner wall of the protective frame 18. At this time, the airbag 19 blows air through the air pipe 20, which discharges the air inside the airbag 19 to the outside of the cabinet 1. At the same time, the air pipe 20 can blow away impurities on the surface of the heat dissipation mesh, preventing impurities from falling into the interior of the cabinet 1. When the inner rod 11 and the push plate 13 descend, the push plate 13 no longer squeezes the airbag 19. At this time, the airbag 19 expands under its own physical properties, and then the airbag 19 draws in the hot air inside the cabinet 1 through the air inlet pipe (when the airbag 19 is squeezed, the hot air is discharged through the air pipe 20). That is, the airbag 19 and the air pipe 20 can efficiently discharge the hot air inside the cabinet 1 and remove impurities from the heat dissipation mesh. When the airbag 19 is working, the one-way valve makes the airflow direction from the air inlet pipe to the airbag 19 and then to the air pipe 20, so that the airflow will not reverse.

[0046] Example 4: Unlike Example 3, the rotating component allows fan 23 to rotate reciprocally, effectively breaking up air stagnation layers, such as... Figure 9 and Figure 10 As shown, the rotating shaft 22 is rotatably connected to the inner wall of the cabinet 1 via a rotating assembly, and a fan 23 is fixedly connected to the end of the rotating shaft 22. An air duct 26 is fixedly connected to the inner wall of the cabinet 1. The rotating assembly includes a rack plate 25 fixedly connected to the surface of the inner rod 11. A gear 24 that meshes with the rack plate 25 is fixedly connected to the end of the rotating shaft 22. A protective cover 21 is fixedly connected to the outer wall of the cabinet 1, and the protective cover 21 covers the rack plate 25 and the gear 24.

[0047] When the inner rod 11 moves vertically, it drives the rack plate 25 to move synchronously vertically. Then, the rotating shaft 22 rotates inside the cabinet 1 under the action of the rack plate 25 and the gear 24. At this time, the fan 23 rotates synchronously. The fan 23 can efficiently break the air stagnation layer, allowing the cold air to better contact the hot air inside the cabinet 1, thus optimizing the heat dissipation effect. In the cabinet 1, the fan 23, together with the cold air and the air bag 19, has multiple cooling effects, avoiding the limitations of single heat dissipation, allowing the cabinet 1 to work better, and also preventing external impurities from entering the cabinet 1, avoiding corrosion, and extending the overall service life of the device.

[0048] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart low-voltage switch cabinet for a potassium sulfate production line, comprising a cabinet (1), an auxiliary plate (2) is bolted to the rear side of the cabinet (1), and an electric telescopic rod (3) is fixedly connected inside the auxiliary plate (2), and a material box (6) is bolted to the rear side of the cabinet (1). In addition, a circulating cooling pipe (7) is fixedly connected to the rear side of the cabinet (1). Its features are: The baffle (15) is connected to the cabinet (1) via a reciprocating assembly. When the temperature is high, the heat dissipation vent on the surface of the cabinet (1) is opened to improve the heat dissipation effect. In addition, an outer tube (10) is fixedly connected to the outer wall of the cabinet (1), and an inner rod (11) is movably installed inside the outer tube (10). The protective frame (18) is fixedly connected to the outer wall of the cabinet (1), and an airbag (19) is bonded to the inner wall of the protective frame (18), and an air blowing pipe (20) is provided on the surface of the airbag (19). A rotating shaft (22) is rotatably connected to the inner wall of the cabinet (1) via a rotating assembly, and a fan (23) is fixedly connected to the end of the rotating shaft (22), and an air duct (26) is fixedly connected to the inner wall of the cabinet (1).

2. The intelligent low-voltage switchgear for a potassium sulfate production line according to claim 1, characterized in that: The output end of the electric telescopic rod (3) is fixedly connected to a docking plate (4), and the lower surface of the docking plate (4) is connected to a movable plate (8) via a long rod. The upper surface of the movable plate (8) is fixedly connected to an air supply pipe (5), which is connected to the output end of an external air supply device to supply low-temperature air to the inside of the material box (6).

3. The intelligent low-voltage switchgear for a potassium sulfate production line according to claim 2, characterized in that: The movable plate (8) is slidably disposed inside the material box (6), and a limiting post (9) is fixedly connected to the inner wall of the material box (6), and the limiting post (9) and the movable plate (8) are slidably connected.

4. The intelligent low-voltage switchgear for a potassium sulfate production line according to claim 1, characterized in that: The lower surface of the inner rod (11) is fixedly connected to the force plate (12), the circulating cooling pipe (7) is a bent structure, and the end of the circulating cooling pipe (7) is initially attached to the lower surface of the force plate (12).

5. The intelligent low-voltage switchgear for a potassium sulfate production line according to claim 1, characterized in that: The reciprocating assembly includes a connecting shaft (14) rotatably disposed on the outside of the cabinet (1), and the connecting shaft (14) is fixedly connected to the baffle (15). In addition, an external rod (16) is fixedly connected to the surface of the baffle (15).

6. The intelligent low-voltage switchgear for a potassium sulfate production line according to claim 5, characterized in that: Both sides of the inner rod (11) are rotatably connected to levers (17). Furthermore, the surface of the lever (17) is in contact with the inner wall of the outer rod (16), and the contact position between the outer rod (16) and the lever (17) is inclined. In addition, the cabinet (1) is provided with a heat dissipation mesh at the position of the baffle (15).

7. The intelligent low-voltage switchgear for a potassium sulfate production line according to claim 1, characterized in that: The end of the inner rod (11) is fixedly connected to a push plate (13), and the end of the push plate (13) is in contact with the lower surface of the airbag (19), while the air blowing pipes (20) are evenly distributed on the surface of the airbag (19).

8. The intelligent low-voltage switchgear for a potassium sulfate production line according to claim 1, characterized in that: An air inlet pipe is provided on the upper side of the airbag (19), and both the air inlet pipe and the blowing pipe (20) are located inside the cabinet (1). At the same time, a one-way valve is provided on the surface of the air inlet pipe and the surface of the blowing pipe (20).

9. The intelligent low-voltage switchgear for a potassium sulfate production line according to claim 1, characterized in that: The rotating assembly includes a rack plate (25) fixedly connected to the surface of the inner rod (11), and a gear (24) that meshes with the rack plate (25) is fixedly connected to the end of the rotating shaft (22). A protective cover (21) is fixedly connected to the outer wall of the cabinet (1), and the protective cover (21) covers the rack plate (25) and the gear (24).

10. The intelligent low-voltage switchgear for a potassium sulfate production line according to claim 4, characterized in that: The end of the air guide tube (26) is located inside the outer tube (10), and a return spring (27) is fixedly connected to the inner wall of the outer tube (10), and the other side of the return spring (27) is fixedly connected to the upper surface of the force plate (12).

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