Power distribution network safety protection device

Abstract

The invention discloses a power distribution network safety protection device, and relates to the technical field of power distribution network safety. A PLC and a temperature and humidity sensor are installed in the box body, a wiring hole is formed in the upper end of the left side of the box body, a bottom plate is fixed to the lower side of the box body, a rotating assembly is installed on the upper side of the bottom plate, an exhaust assembly is installed on the rear side of the box body, and a sealing assembly is installed on the rear side of the interior of the box body; a flow guide assembly is installed in the middle of the box body, an air outlet assembly is installed below the flow guide assembly, the air outlet assembly is connected with a rotating assembly, a cooling assembly and a refrigerating assembly are installed on the left side of the box body, and the cooling assembly is matched with the refrigerating assembly; the temperature control assembly comprises a conical air inlet barrel, a connecting pipe, an air inlet fan, a first protective net, an electric heating pipe and a first temperature sensor, the temperature and humidity in the box body can be effectively controlled, and faults are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution network safety, and in particular to a power distribution network safety protection device. Background Art

[0002] The distribution network is composed of overhead lines, cables, towers, distribution transformers, disconnectors, reactive power compensators and some ancillary facilities, and plays an important role in distributing electric energy in the power grid. The intelligent distribution network system power distribution automation system consists of three major parts: the main station, the communication system, and the automated monitoring terminal equipment, forming a complete information transmission and processing system to achieve remote management of the distribution network operation. Among them, the distribution box is an important component, and it is equipped with many important electronic components. The safety of electronic components is the key to determining the safety and reliability of power supply. Since the electronic components inside the distribution box are more sensitive to temperature and humidity, and the temperature and humidity inside the distribution box directly determine the aging speed of the electronic components and the replacement frequency of equipment parts, especially the humidity of the distribution box, a distribution box with high humidity not only affects the service life of the electronic components, but also easily leads to the degradation of the performance of the insulating material inside the distribution box, which in turn causes short circuits, leakage and other faults. For this reason, we propose a distribution network safety protection device. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a power distribution network safety protection device, which can effectively control the temperature and humidity inside the box to avoid causing malfunctions and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a power distribution network safety protection device, comprising a box and a temperature control component; Box: A PLC controller and a temperature and humidity sensor are installed inside, a wiring hole is opened at the upper end of the left side of the box, a bottom plate is fixed to the lower side of the box, a rotating assembly is installed on the upper side of the bottom plate, an exhaust assembly is installed on the rear side of the box, a sealing assembly is installed on the rear side of the box, a flow guide assembly is installed in the middle of the box, an air outlet assembly is installed below the flow guide assembly, and the air outlet assembly is connected to the rotating assembly, a cooling assembly and a refrigeration assembly are installed on the left side of the box, and the cooling assembly and the refrigeration assembly cooperate with each other; Temperature control component: comprising a conical air inlet barrel, a connecting pipe, an air inlet fan, a first protective net, an electric heating pipe and a first temperature sensor. Two corresponding air inlets are provided at the lower ends of the left and right sides of the box body. A conical air inlet barrel is fixed inside the air inlet. Both conical air inlet barrels are connected to the flow guide component. A connecting pipe is fixed inside the conical air inlet barrel. An air inlet fan is installed inside the connecting pipe. A first protective net is fixed to the right end of the connecting pipe. Evenly distributed mounting holes are provided in the pipe wall of the right connecting pipe. An electric heating pipe is installed inside the mounting hole. A first temperature sensor is installed inside the right connecting pipe. The cooling component is connected to the connecting pipe on the left. The temperature and humidity inside the box body are controlled by setting a temperature and humidity control component. Among them: the input end of the PLC controller is electrically connected to the output end of the external power supply, the output end of the PLC controller is electrically connected to the input ends of the air intake fan and the electric heating tube respectively, and the first temperature sensor and the temperature and humidity sensor are both electrically connected to the PLC controller in both directions.

[0005] Furthermore, the cooling component includes a fixed ring, a water tank, a water pump, a water inlet pipe and a return pipe. A fixed ring is fixed on the circumferential surface of the left connecting pipe, a water storage chamber is arranged inside the fixed ring, a water storage tank is fixed on the left side of the box body, a water pump is installed inside the water tank, a water inlet pipe is fixed in the water outlet of the water pump, the rear end of the water inlet pipe is fixed to the upper end of the circumferential surface of the fixed ring, a return pipe is fixed to the lower end of the circumferential surface of the fixed ring, the water inlet pipe and the return pipe are both connected to the water storage chamber, the front end of the return pipe is fixed to the inside of the reflux port arranged on the upper side of the water tank, the input end of the water pump is electrically connected to the output end of the PLC controller, and the air entering the inside of the left connecting pipe is cooled by setting a cooling component.

[0006] Furthermore, the refrigeration component includes a second temperature sensor, a mounting bracket, a heat dissipation fan and a semiconductor refrigeration sheet. A groove is provided on the left side of the water tank, a semiconductor refrigeration sheet is installed inside the groove, the heat dissipation end of the semiconductor refrigeration sheet is located outside the groove, and the cooling end of the semiconductor refrigeration sheet is located inside the groove. A mounting bracket is fixed to the left side of the water tank, two heat dissipation fans are installed inside the mounting bracket, and the two heat dissipation fans correspond to the heat dissipation ends of the semiconductor refrigeration sheet. A through hole is provided at the upper end of the left side of the water tank, a second temperature sensor is installed inside the through hole, the second temperature sensor is electrically connected to the PLC controller in both directions, the input ends of the heat dissipation fan and the semiconductor refrigeration sheet are electrically connected to the output end of the PLC controller, and the water inside the water tank is cooled by setting up the refrigeration component.

[0007] Furthermore, the guide assembly includes a fixing bar, a U-shaped guide tube and a solenoid valve. Two corresponding fixing bars are fixed on the left and right sides of the inside of the box. A fixing hole is opened in the middle of the fixing bar. A U-shaped guide tube is fixed inside the two fixing holes. Two corresponding solenoid valves are installed on the surface of the U-shaped guide tube. The input end of the solenoid valve is electrically connected to the output end of the PLC controller. The air entering the inside of the box is guided by setting the guide assembly.

[0008] Furthermore, the air outlet assembly includes a rotating tube, a U-shaped air outlet pipe and an air outlet, a rotating hole is opened in the middle of the U-shaped guide tube, the interior of the rotating hole is rotatably connected with a rotating tube, the rotating tube is located between two solenoid valves, a U-shaped air outlet pipe is fixed to the lower end of the rotating tube, the U-shaped air outlet pipe is communicated with the rotating tube, and the surface of the U-shaped air outlet pipe is opened with evenly distributed air outlets, and the external air is evenly injected into the interior of the box by setting the air outlet assembly.

[0009] Furthermore, the rotating assembly includes a motor, a gear, a connecting plate, a swivel and a gear ring. A connecting groove is provided on the rear side of the inner part of the box body, a motor is installed inside the connecting groove, a gear is fixed on the output shaft of the motor, a fixing groove is provided on the upper side of the bottom plate, a connecting plate is fixed inside the fixing groove, an annular groove is provided on the upper side of the connecting plate, a swivel is rotatably connected inside the annular groove, a gear ring is fixed on the upper end of the swivel, the gear ring is meshed with the gear, the U-shaped air outlet pipe is fixed at the upper end of the swivel, the input end of the motor is electrically connected to the output end of the PLC controller, and the U-shaped air outlet pipe is driven to rotate by setting the rotating assembly.

[0010] Furthermore, the sealing assembly includes an installation groove, an electric telescopic rod and a sealing plate. Two corresponding installation grooves are opened on the rear side of the box body. The electric telescopic rod is installed inside the installation groove. A sealing plate is fixed on the telescopic arm of the electric telescopic rod. The input end of the electric telescopic rod is electrically connected to the output end of the PLC controller. The two exhaust rings are sealed by setting the sealing assembly.

[0011] Furthermore, the exhaust assembly includes an exhaust ring, an exhaust fan and a second protective net. An exhaust hole is opened at the lower end of the installation groove, an exhaust ring is fixed inside the exhaust hole, an exhaust fan is installed inside the exhaust ring, a second protective net is fixed at the rear end of the exhaust ring, the sealing plate and the exhaust ring correspond to each other, the input end of the exhaust fan is electrically connected to the output end of the PLC controller, and the air inside the box is discharged by setting the exhaust assembly.

[0012] Furthermore, a baffle is hinged on the front side of the box body, an observation port is opened on the front side of the baffle, a transparent plate is fixed inside the observation port, and the box body is sealed by setting the baffle.

[0013] Furthermore, a mounting grille is fixed on the upper side of the bottom plate, and the mounting grille is located inside the U-shaped air outlet pipe. When in use, the electrical components required can be installed on the side of the mounting grille.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the distribution network safety protection device has the following advantages: 1. The temperature and humidity inside the box are continuously detected by setting a temperature and humidity sensor. When the temperature inside is too high, the PLC controller opens the solenoid valve on the left, the air intake fan on the left and the two exhaust fans. After the air intake fan on the left is started, the external air is drawn into the inside of the U-shaped air outlet pipe through the connecting pipe on the left, and then sprayed into the inside of the box through the evenly distributed air outlets. After the two exhaust fans are started, the air inside the box is drawn out. In this case, the inside of the box can be ventilated, thereby preliminarily reducing the temperature inside the box. 2. By setting the cooling component and the refrigeration component, when the temperature inside the box is too high, the PLC controller will also automatically control the semiconductor refrigeration plate and the two cooling fans. After the two cooling fans are started, the semiconductor refrigeration plate is cooled. After the semiconductor refrigeration plate is turned on, the water inside the water storage tank is cooled. After cooling, the PLC controller automatically controls the water pump to inject the cooled water into the water storage cavity set inside the fixed ring, and then re-enters the water storage tank through the return pipe. In this case, the cooling water circulation can be carried out. During the cooling water circulation process, the temperature of the connecting pipe on the left can be reduced. In this case, the temperature of the air entering from the connecting pipe on the left can be reduced. The air with reduced temperature enters the box, which can further reduce the temperature inside the box, thereby effectively avoiding damage to the electrical components inside the box. 3. By setting the temperature control component, when the humidity inside the box is high, the PLC controller will automatically open the solenoid valve on the right, the air intake fan on the right, the two exhaust fans and all the electric heating tubes. After the air intake fan and the two exhaust fans on the right are started, the inside of the box will be ventilated. After all the electric heating tubes are started, the air entering the inside of the connecting pipe on the right will be dried. The dry air entering the inside of the box can quickly reduce the humidity inside the box, thereby avoiding damage to the electrical components inside the box due to excessive humidity; 4. By setting a rotating assembly, the motor can be started to rotate the gear during the ventilation process, the gear rotation drives the gear ring to rotate, the gear ring rotation drives the rotating ring to rotate, the rotating ring rotation drives the U-shaped air outlet pipe to rotate, and the ventilation efficiency can be improved during the rotation process; 5. By setting up the sealing component, when the temperature and humidity inside the box are appropriate, the PLC controller will automatically control the two electric telescopic rods to work. The two electric telescopic rods drive the two sealing plates downward to seal the two exhaust rings. At the same time, the PLC controller will also control the two solenoid valves to close. In this way, the external environment can be effectively prevented from affecting the operation of the electrical components inside the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front structure of the present invention; Figure 2 A is an enlarged view of the present invention; Figure 3 A front sectional view of the present invention; Figure 4 B is an enlarged view of the present invention; Figure 5 A schematic diagram of the cooling assembly structure of the present invention; Figure 6 A schematic diagram of the structure of the rotating assembly of the present invention; Figure 7 It is a left side sectional view of the present invention.

[0016] In the figure: 1 box, 2 temperature control component, 21 conical air inlet barrel, 22 connecting pipe, 24 air inlet fan, 25 first protective net, 26 electric heating pipe, 27 first temperature sensor, 3 cooling component, 31 fixing ring, 32 water storage tank, 33 water pump, 34 water inlet pipe, 35 return pipe, 4 refrigeration component, 41 second temperature sensor, 42 mounting frame, 43 cooling fan, 44 semiconductor refrigeration plate, 5 guide component, 51 fixing bar, 52 U-shaped guide pipe, 53 solenoid valve, 6 exhaust component, 61 rotating pipe, 62 U-shaped exhaust pipe, 63 outlet, 7 rotating component, 71 motor, 72 gear, 73 connecting plate, 74 rotating ring, 75 gear ring, 8 sealing component, 81 mounting groove, 82 electric telescopic rod, 83 sealing plate, 9 exhaust component, 91 exhaust ring, 92 exhaust fan, 93 second protective net, 10 bottom plate, 11 PLC controller, 12 temperature and humidity sensor, 13 baffle, 14 transparent plate, 15 wiring hole, 16 installation grille. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-7,This embodiment provides a technical solution: a distribution network safety protection device, including a box 1 and a temperature control component 2; Box body 1: A PLC controller 11 and a temperature and humidity sensor 12 are installed inside, a wiring hole 15 is opened at the upper end of the left side of the box body 1, a bottom plate 10 is fixed to the lower side of the box body 1, a rotating component 7 is installed on the upper side of the bottom plate 10, an exhaust component 9 is installed on the rear side of the box body 1, a sealing component 8 is installed on the rear side of the box body 1, a guide component 5 is installed in the middle of the box body 1, an air outlet component 6 is installed below the guide component 5, and the air outlet component 6 is connected to the rotating component 7, a cooling component 3 and a refrigeration component 4 are installed on the left side of the box body 1, the cooling component 3 and the refrigeration component 4 cooperate, the cooling component 3 includes a fixing ring 31, a water storage tank 32, a water pump 33, a water inlet pipe 34 and a return pipe 35, a fixing ring 31 is fixed on the circumferential surface of the connecting pipe 22 on the left side, and a fixing ring 31 is fixed on the circumferential surface of the connecting pipe 22 on the left side. A water storage cavity is arranged inside the fixed ring 31, a water storage tank 32 is fixed on the left side of the box body 1, a water pump 33 is installed inside the water storage tank 32, a water inlet pipe 34 is fixed inside the water outlet of the water pump 33, a rear end of the water inlet pipe 34 is fixed to the upper end of the circumferential surface of the fixed ring 31, a return pipe 35 is fixed to the lower end of the circumferential surface of the fixed ring 31, the water inlet pipe 34 and the return pipe 35 are both communicated with the water storage cavity, the front end of the return pipe 35 is fixed inside the reflux port arranged on the upper side of the water storage tank 32, the input end of the water pump 33 is electrically connected to the output end of the PLC controller 11, the refrigeration component 4 includes a second temperature sensor 41, a mounting frame 42, a heat dissipation fan 43 and a semiconductor refrigeration sheet 44, a groove is provided on the left side of the water storage tank 32, a semiconductor refrigeration sheet 44 is installed inside the groove, and a semiconductor refrigeration sheet 44 is installed inside the semiconductor refrigeration sheet 44. The heat dissipation end of the conductor refrigeration sheet 44 is located outside the groove, and the cooling end of the semiconductor refrigeration sheet 44 is located inside the groove. A mounting frame 42 is fixed on the left side of the water storage tank 32, and two heat dissipation fans 43 are installed inside the mounting frame 42. The two heat dissipation fans 43 correspond to the heat dissipation ends of the semiconductor refrigeration sheet 44. A through hole is opened at the upper end of the left side of the water storage tank 32, and a second temperature sensor 41 is installed inside the through hole. The second temperature sensor 41 is bidirectionally electrically connected to the PLC controller 11. The input ends of the heat dissipation fan 43 and the semiconductor refrigeration sheet 44 are electrically connected to the output end of the PLC controller 11. The guide component 5 includes a fixing bar 51, a U-shaped guide pipe 52 and a solenoid valve 53. Two corresponding fixing bars 51 are fixed on the left and right sides of the inside of the box body 1. A fixing hole is provided in the middle of the fixed bar 51, and a U-shaped air guide pipe 52 is fixed inside the two fixing holes. Two corresponding solenoid valves 53 are installed on the surface of the U-shaped air guide pipe 52, and the input end of the solenoid valve 53 is electrically connected to the output end of the PLC controller 11. The air outlet component 6 includes a rotating pipe 61, a U-shaped air outlet pipe 62 and an air outlet 63. A rotating hole is provided in the middle of the U-shaped air guide pipe 52, and the rotating pipe 61 is rotatably connected inside the rotating hole. The rotating pipe 61 is located between the two solenoid valves 53. A U-shaped air outlet pipe 62 is fixed at the lower end of the rotating pipe 61, and the U-shaped air outlet pipe 62 is communicated with the rotating pipe 61. The surface of the U-shaped air outlet pipe 62 is provided with evenly distributed air outlets 63. The rotating component 7 includes a motor 71, a gear 72, a connecting plate 73, a rotating ring 74 and a gear ring 75.A connecting groove is provided on the rear side of the interior of the box body 1, and a motor 71 is installed inside the connecting groove. A gear 72 is fixed on the output shaft of the motor 71. A fixing groove is provided on the upper side of the bottom plate 10, and a connecting plate 73 is fixed inside the fixing groove. An annular groove is provided on the upper side of the connecting plate 73, and a swivel 74 is rotatably connected inside the annular groove. A gear ring 75 is fixed on the upper end of the swivel 74, and the gear ring 75 is meshed with the gear 72. The U-shaped air outlet pipe 62 is fixed to the upper end of the swivel 74. The input end of the motor 71 is electrically connected to the output end of the PLC controller 11. The sealing component 8 includes a mounting groove 81, an electric telescopic rod 82 and a sealing plate 83. Two corresponding mounting grooves 81 are provided on the rear side of the interior of the box body 1, and an electric telescopic rod 82 is installed inside the mounting groove 81. A sealing plate 83 is fixed on the telescopic arm of the electric telescopic rod 82, and the input end of the electric telescopic rod 82 is electrically connected to the output end of the PLC controller 11. The exhaust component 9 includes an exhaust An air ring 91, an exhaust fan 92 and a second protective net 93, an exhaust hole is opened at the lower end of the installation groove 81, an exhaust ring 91 is fixed inside the exhaust hole, an exhaust fan 92 is installed inside the exhaust ring 91, a second protective net 93 is fixed at the rear end of the exhaust ring 91, the sealing plate 83 corresponds to the exhaust ring 91, the input end of the exhaust fan 92 is electrically connected to the output end of the PLC controller 11, the air inside the box body 1 is discharged by setting the exhaust component 9, the two exhaust rings 91 are sealed by setting the sealing component 8, the U-shaped air outlet pipe 62 is driven to rotate by setting the rotating component 7, the external air is uniformly injected into the interior of the box body 1 by setting the air outlet component 6, the air entering the interior of the box body 1 is guided by setting the guide component 5, the water inside the water storage tank 32 is cooled by setting the refrigeration component 4, and the air entering the left connecting pipe 22 is cooled by setting the cooling component 3; Temperature control component 2: comprising a conical air inlet barrel 21, a connecting pipe 22, an air inlet fan 24, a first protective net 25, an electric heating pipe 26 and a first temperature sensor 27. Two corresponding air inlets are provided at the lower ends of the left and right sides of the box body 1. A conical air inlet barrel 21 is fixed inside the air inlet. Both conical air inlet barrels 21 are connected to the flow guide component 5. A connecting pipe 22 is fixed inside the conical air inlet barrel 21. An air inlet fan 24 is installed inside the connecting pipe 22. A first protective net 25 is fixed to the right end of the connecting pipe 22. Evenly distributed mounting holes are provided in the pipe wall of the right connecting pipe 22. An electric heating pipe 26 is installed inside the mounting hole. A first temperature sensor 27 is installed inside the right connecting pipe 22. The cooling component 3 is connected to the connecting pipe 22 on the left. The temperature and humidity inside the box body 1 are controlled by setting the temperature and humidity control component 2. Among them: the input end of the PLC controller 11 is electrically connected to the output end of the external power supply, the output end of the PLC controller 11 is electrically connected to the input ends of the intake fan 24 and the electric heating tube 26 respectively, and the first temperature sensor 27 and the temperature and humidity sensor 12 are both bidirectionally electrically connected to the PLC controller 11.

[0019] The front side of the box body 1 is hinged with a baffle 13 , the front side of the baffle 13 is provided with an observation port, a transparent plate 14 is fixed inside the observation port, and the box body 1 is sealed by setting the baffle 13 .

[0020] Wherein: a mounting grille 16 is fixed on the upper side of the bottom plate 10 , and the mounting grille 16 is located inside the U-shaped air outlet pipe 62 , and the electrical components required for use can be mounted on the side of the mounting grille 16 during use.

[0021] The working principle of a distribution network safety protection device provided by the present invention is as follows: first, the electrical components required for the distribution network installation are installed on the side of the installation grille 16. After the installation, the appropriate temperature and humidity thresholds inside the box 1 are set inside the PLC controller 11. After the input is completed, the temperature and humidity sensor 12 located inside the box 1 will continue to detect the temperature and humidity inside the box 1. When the temperature inside is too high, the PLC controller 11 opens the solenoid valve 53 on the left, the air intake fan 24 on the left and the two exhaust fans 92. After the air intake fan 24 on the left is started, the external air is drawn into the inside of the U-shaped outlet pipe 62 through the connecting pipe 22 on the left, and then sprayed into the inside of the box 1 through the evenly distributed air outlets 53. After the two exhaust fans 92 are started, The air inside the box is extracted, so that the interior of the box 1 can be ventilated, thereby preliminarily reducing the temperature inside the box 1. When the temperature inside the box 1 is too high, the PLC controller 11 will also automatically control the semiconductor refrigeration sheet 44 and the two cooling fans 43. After the two cooling fans 43 are started, the semiconductor refrigeration sheet 44 is dissipated. After the semiconductor refrigeration sheet 44 is turned on, the water inside the water tank 32 is cooled. After cooling, the PLC controller 11 automatically controls the water pump 33 to inject the cooled water into the water storage cavity set inside the fixed ring 31, and then re-enters the water storage tank 32 through the reflux pipe 35. In this case, the cooling water circulation can be carried out, and the connecting pipe 22 on the left side can be lowered during the cooling water circulation process. , in this case, the temperature of the air entering from the left connecting pipe 22 can be reduced, and the air with reduced temperature enters the interior of the box 1, which can further reduce the temperature inside the box 1, thereby effectively avoiding damage to the electrical components inside the box 1. When the humidity inside the box 1 is high, the PLC controller will automatically open the solenoid valve 53 on the right, the air intake fan 24 on the right, the two exhaust fans 92 and all the electric heating tubes 26. After the air intake fan 24 and the two exhaust fans 92 on the right are started, the interior of the box 1 is ventilated. After all the electric heating tubes 26 are started, the air entering the right connecting pipe 22 is dried. The dry air enters the interior of the box 1 and can quickly reduce the humidity inside the box 1, thereby avoiding In order to prevent the electrical components inside the box 1 from being damaged due to excessive humidity, the motor can be started during the ventilation process to rotate the gear 72, which drives the gear ring 75 to rotate, which drives the swivel 74 to rotate, and the swivel 74 drives the U-shaped air outlet pipe 62 to rotate. The ventilation efficiency can be improved during its rotation. When the temperature and humidity inside the box 1 are appropriate, the PLC controller 11 will automatically control the two electric telescopic rods 82 to work, and the two electric telescopic rods 82 will work to drive the two sealing plates 83 downward to seal the two exhaust rings 91. At the same time, the PLC controller 11 will also control the two solenoid valves 53 to close. In this case, the external environment can be effectively prevented from affecting the operation of the electrical components inside the box 1.During the cooling process of the semiconductor cooling sheet 44, the second temperature sensor 41 continuously detects the temperature inside the water storage tank 32 to prevent the water temperature inside the water storage tank 32 from being too low. During the operation of the electric heating tube 26, the first temperature sensor 27 continuously detects the internal temperature of the right connecting tube 22 to prevent the internal temperature from being too high and affecting the operation of the electrical components inside the box 1.

[0022] It is worth noting that the PLC controller 10 disclosed in the above embodiment is specifically a Siemens S7-200 model, and the electric heating tube 26, the first temperature sensor 27, the second temperature sensor 41, the solenoid valve 53, the intake fan 24, the exhaust fan 92, the temperature and humidity sensor 12, the heat dissipation fan 43, the water pump 33, and the semiconductor cooling plate 44 can be freely configured according to the actual application scenario. The PLC controller 10 controls the electric heating tube 26, the solenoid valve 53, the intake fan 24, the exhaust fan 92, the heat dissipation fan 43, the water pump 33 and the semiconductor cooling plate 44 using methods commonly used in the prior art.

[0023] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A distribution network safety protection device, characterized in that: It comprises a box body (1) and a temperature control component (2); Box (1): a PLC controller (11) and a temperature and humidity sensor (12) are installed inside, a wiring hole (15) is opened at the upper end of the left side of the box (1), a bottom plate (10) is fixed on the lower side of the box (1), a rotating assembly (7) is installed on the upper side of the bottom plate (10), an exhaust assembly (9) is installed on the rear side of the box (1), a sealing assembly (8) is installed on the rear side of the box (1), a flow guide assembly (5) is installed in the middle of the box (1), an air outlet assembly (6) is installed below the flow guide assembly (5), and the air outlet assembly (6) is connected to the rotating assembly (7), and a cooling assembly (3) and a refrigeration assembly (4) are installed on the left side of the box (1), and the cooling assembly (3) and the refrigeration assembly (4) cooperate with each other; Temperature control component (2): comprising a conical air inlet barrel (21), a connecting pipe (22), an air inlet fan (24), a first protective net (25), an electric heating pipe (26) and a first temperature sensor (27); two corresponding air inlets are provided at the lower ends of the left and right sides of the box body (1); a conical air inlet barrel (21) is fixed inside the air inlet; both conical air inlet barrels (21) are connected to the flow guide component (5); a connecting pipe (22) is fixed inside the conical air inlet barrel (21); an air inlet fan (24) is installed inside the connecting pipe (22); a first protective net (25) is fixed at the right end inside the connecting pipe (22); evenly distributed mounting holes are provided in the pipe wall of the right connecting pipe (22); an electric heating pipe (26) is installed inside the mounting hole; a first temperature sensor (27) is installed inside the right connecting pipe (22); and the cooling component (3) is connected to the left connecting pipe (22); The input end of the PLC controller (11) is electrically connected to the output end of an external power supply, the output end of the PLC controller (11) is electrically connected to the input ends of an air intake fan (24) and an electric heating pipe (26), respectively, and the first temperature sensor (27) and the temperature and humidity sensor (12) are both electrically connected to the PLC controller (11) in a bidirectional manner.

2. A power distribution network safety protection device according to claim 1, characterized in that: The cooling assembly (3) comprises a fixing ring (31), a water storage tank (32), a water pump (33), a water inlet pipe (34) and a return pipe (35); a fixing ring (31) is fixed on the circumferential surface of the left connecting pipe (22); a water storage cavity is provided inside the fixing ring (31); a water storage tank (32) is fixed on the left side of the box body (1); a water pump (33) is installed inside the water storage tank (32); a water outlet of the water pump (33) is fixed inside the water outlet A water inlet pipe (34) is provided, the rear end of the water inlet pipe (34) being fixed to the upper end of the circumferential surface of the fixing ring (31), a return pipe (35) being fixed to the lower end of the circumferential surface of the fixing ring (31), the water inlet pipe (34) and the return pipe (35) both being in communication with the water storage chamber, the front end of the return pipe (35) being fixed to the inside of a return port provided on the upper side of the water storage tank (32), and the input end of the water pump (33) being electrically connected to the output end of the PLC controller (11).

3. A power distribution network safety protection device according to claim 2, characterized in that: The refrigeration assembly (4) comprises a second temperature sensor (41), a mounting frame (42), a heat dissipation fan (43) and a semiconductor refrigeration sheet (44); a groove is provided on the left side of the water storage tank (32); a semiconductor refrigeration sheet (44) is installed inside the groove; a heat dissipation end of the semiconductor refrigeration sheet (44) is located outside the groove; a refrigeration end of the semiconductor refrigeration sheet (44) is located inside the groove; a mounting frame (42) is fixed on the left side of the water storage tank (32); two heat dissipation fans (43) are installed inside the mounting frame (42); the two heat dissipation fans (43) correspond to the heat dissipation ends of the semiconductor refrigeration sheet (44); a through hole is provided on the upper end of the left side of the water storage tank (32); a second temperature sensor (41) is installed inside the through hole; the second temperature sensor (41) is bidirectionally electrically connected to the PLC controller (11); the input ends of the heat dissipation fan (43) and the semiconductor refrigeration sheet (44) are electrically connected to the output end of the PLC controller (11).

4. A power distribution network safety protection device according to claim 1, characterized in that: The flow guide assembly (5) comprises a fixing strip (51), a U-shaped flow guide tube (52) and a solenoid valve (53); two corresponding fixing strips (51) are fixed on the left and right sides of the interior of the box (1); a fixing hole is provided in the middle of the fixing strip (51); a U-shaped flow guide tube (52) is fixed inside the two fixing holes; two corresponding solenoid valves (53) are installed on the surface of the U-shaped flow guide tube (52); an input end of the solenoid valve (53) is electrically connected to an output end of a PLC controller (11).

5. A power distribution network safety protection device according to claim 4, characterized in that: The air outlet assembly (6) comprises a rotating tube (61), a U-shaped air outlet pipe (62) and an air outlet (63); a rotating hole is provided in the middle of the U-shaped flow guide pipe (52); the rotating tube (61) is rotatably connected inside the rotating hole; the rotating tube (61) is located between the two solenoid valves (53); a U-shaped air outlet pipe (62) is fixed to the lower end of the rotating tube (61); the U-shaped air outlet pipe (62) is in communication with the rotating tube (61); and the surface of the U-shaped air outlet pipe (62) is provided with evenly distributed air outlets (63).

6. A power distribution network safety protection device according to claim 5, characterized in that: The rotating assembly (7) comprises a motor (71), a gear (72), a connecting plate (73), a rotating ring (74) and a gear ring (75); a connecting groove is provided at the rear side of the interior of the housing (1); a motor (71) is installed inside the connecting groove; a gear (72) is fixed to the output shaft of the motor (71); a fixing groove is provided at the upper side of the bottom plate (10); a connecting plate (73) is fixed inside the fixing groove; an annular groove is provided at the upper side of the connecting plate (73); a rotating ring (74) is rotatably connected inside the annular groove; a gear ring (75) is fixed at the upper end of the rotating ring (74); the gear ring (75) is meshed with the gear (72); the U-shaped air outlet pipe (62) is fixed at the upper end of the rotating ring (74); and an input end of the motor (71) is electrically connected to an output end of a PLC controller (11).

7. A power distribution network safety protection device according to claim 1, characterized in that: The sealing assembly (8) comprises a mounting groove (81), an electric telescopic rod (82) and a sealing plate (83); two corresponding mounting grooves (81) are provided on the rear side of the interior of the box body (1); the electric telescopic rod (82) is installed inside the mounting groove (81); the sealing plate (83) is fixed on the telescopic arm of the electric telescopic rod (82); and the input end of the electric telescopic rod (82) is electrically connected to the output end of the PLC controller (11).

8. A power distribution network safety protection device according to claim 7, characterized in that: The exhaust assembly (9) comprises an exhaust ring (91), an exhaust fan (92) and a second protective net (93); an exhaust hole is provided at the lower end of the interior of the mounting groove (81); an exhaust ring (91) is fixed inside the exhaust hole; an exhaust fan (92) is installed inside the exhaust ring (91); a second protective net (93) is fixed at the rear end of the interior of the exhaust ring (91); the sealing plate (83) and the exhaust ring (91) correspond to each other; and an input end of the exhaust fan (92) is electrically connected to an output end of a PLC controller (11).

9. A power distribution network safety protection device according to claim 1, characterized in that: A baffle (13) is hingedly connected to the front side of the box body (1), an observation port is provided on the front side of the baffle (13), and a transparent plate (14) is fixed inside the observation port.

10. A power distribution network safety protection device according to claim 5, characterized in that: A mounting grille (16) is fixed to the upper side of the bottom plate (10), and the mounting grille (16) is located inside the U-shaped air outlet pipe (62).

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