High-safety station explosion-proof transformer and use method

Abstract

The invention discloses a high-safety station explosion-proof transformer and a using method, and relates to the technical field of transformers. The explosion-proof transformer comprises a transformer body arranged in an explosion-proof shell, a plurality of cooling fins are arranged on the side portion of the transformer body, the explosion-proof transformer further comprises a pressure relief unit, the pressure relief unit comprises a plurality of pressure relief boxes arranged in the explosion-proof shell, and a pressure relief assembly is arranged in each pressure relief box; a pressure monitoring sensor for monitoring and releasing the internal pressure of the transformer main body is arranged in the pressure relief assembly, and an adjusting assembly and a heat dissipation assembly are arranged on each pressure relief box. The transformer has the advantages that multi-point pressure monitoring can be carried out on the interior of the transformer body, whether high voltage occurs in the transformer body or not is monitored in real time, targeted pressure relief and explosion prevention can be carried out on a high-voltage part after the high voltage is monitored, the heat dissipation range and the heat dissipation efficiency can be improved in a targeted mode according to the pressure relief condition, and the heat dissipation efficiency is improved. Synchronous explosion-proof treatment of the inside and the outside is realized, and the explosion-proof safety is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a substation explosion-proof transformer with high safety and a usage method thereof. Background Art

[0002] A substation transformer is a transformer dedicated to power equipment stations such as substations and distribution rooms. When the transformer is actually in use, it will generate a lot of heat. If the transformer works in a high-temperature environment for a long time, there is a risk of explosion. Therefore, an explosion-proof structure is usually set on the transformer to improve its operation safety;

[0003] Existing explosion-proof transformers use various methods to achieve explosion-proof protection. For example, an explosion-proof transformer with the publication number CN106024277A includes a transformer body. Drainage ports arranged at equal distances are opened at the top of the transformer body. A first funnel and a second funnel are respectively arranged at the top of the transformer body. Filter nets are fixedly connected inside both the first funnel and the second funnel. A temperature sensor, a toolbox and a condenser are respectively arranged inside the transformer body. The top of the temperature sensor and the top of the toolbox are fixedly connected to the inner wall of the transformer body. A power supply and a microprocessor are respectively arranged inside the toolbox. The bottom of the condenser is fixedly connected to the inner bottom wall of the transformer body;

[0004] Existing explosion-proof transformers usually achieve explosion-proof by monitoring temperature and cooling. When the transformer is actually in use, a large pressure will be generated inside it due to the increase in temperature. If the pressure is too large and exceeds the limit value, there is a risk of explosion. For example, in the above-mentioned existing technology for reference, this device only monitors the temperature of the transformer body, but does not perform real-time pressure monitoring on the inside of the transformer body, and cannot judge whether the inside of the transformer is in a high-pressure and explosion-prone state. At the same time, this device uses a water pipe arranged inside the transformer body for water cooling, and the water pipe is prone to leakage. When leaking, it will directly damage the inside of the transformer body, which has certain limitations;

[0005] Therefore, it is urgent to design a substation explosion-proof transformer with high safety and a usage method thereof to solve the above problems. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a substation explosion-proof transformer with high safety and a usage method thereof, which solves the problems put forward in the above background art.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A substation explosion-proof transformer with high safety includes a transformer body arranged inside an explosion-proof shell, and a plurality of heat dissipation fins are arranged on the side of the transformer body. It further includes:

[0008] The pressure relief unit includes a plurality of pressure relief boxes arranged inside the explosion-proof housing, and a pressure relief component is arranged in each pressure relief box. A pressure monitoring sensor for monitoring and releasing the internal pressure of the transformer body is arranged in the pressure relief component. Targeted explosion-proof pressure relief for each area inside the transformer body is achieved through the pressure relief component. An adjustment component and a heat dissipation component are arranged on each pressure relief box, and both the adjustment component and the heat dissipation component are activated when the corresponding pressure relief component is triggered;

[0009] A plurality of folding baffles are arranged in the adjustment component. The unfolded state of the folding baffles is adjusted through the adjustment component to improve the pressure relief efficiency of the transformer body. A plurality of air blowing pipes are arranged in the heat dissipation component. Airflow is generated through the heat dissipation component and blown to a plurality of heat dissipation fins through the plurality of air blowing pipes to improve the heat dissipation effect of the heat dissipation fins.

[0010] Preferably, the pressure relief component includes a pressure relief main pipe, and a communication pipe is fixedly connected between the pressure relief main pipe and the pressure relief box. A plurality of pressure relief branch pipes are fixedly connected between the pressure relief main pipe and the transformer body, and a pressure monitoring sensor for monitoring the internal pressure of the transformer body is arranged in each pressure relief branch pipe. A buffer mechanism is arranged in the pressure relief box.

[0011] Preferably, the buffer mechanism includes a pressure relief plate and a lifting pressure plate slidably installed in the pressure relief box. Two support springs are fixedly installed between the pressure relief plate and the lifting pressure plate. The air inlet end of the communication pipe is located above the pressure relief plate. A control valve is arranged in each pressure relief branch pipe. Synthetic ester oil is filled in the pressure relief box below the lifting pressure plate.

[0012] Preferably, the adjustment component includes a support top plate fixedly installed inside the explosion-proof housing. A displacement plate is slidably installed on the support top plate. A driven mechanism is installed between the displacement plate and the pressure relief box. A plurality of driven rollers are rotatably installed on the support top plate. A transmission toothed rod is fixedly installed on the displacement plate. A transmission gear is fixedly installed on each driven roller, and a plurality of transmission gears are engaged with the transmission toothed rod. A deviation mechanism is jointly installed between the plurality of driven rollers and the explosion-proof housing.

[0013] Preferably, the driven mechanism includes a liquid guide pipe fixedly connected in the pressure relief box for conducting synthetic ester oil. A piston frame is slidably installed in the liquid guide pipe, and the upper end of the piston frame is fixedly installed on the displacement plate.

[0014] Preferably, the deviation mechanism includes a plurality of heat dissipation openings opened on the explosion-proof housing, and each heat dissipation opening is located between two corresponding heat dissipation fins. A folding baffle is fixedly installed in each heat dissipation opening. An air guiding heat dissipation fin is fixedly installed on each driven roller, and a linkage plate matched with the air guiding heat dissipation fin is fixedly installed on each folding baffle.

[0015] Preferably, the heat dissipation component includes a heat dissipation pipe disposed inside the explosion-proof housing, and a liquid separation pipe for conducting synthetic ester oil is fixedly connected between the heat dissipation pipe and the pressure relief box. A triggering mechanism and a wind guiding mechanism are disposed inside the heat dissipation pipe, wherein the triggering mechanism is used to drive the wind guiding mechanism to start and generate an air flow to circulate and dissipate heat from the transformer body inside the explosion-proof housing.

[0016] Preferably, the triggering mechanism includes a fixed disk fixedly installed inside the heat dissipation pipe. A servo motor is fixedly installed on the fixed disk. A pushing disk is slidably installed inside the heat dissipation pipe, and a triggering rod is fixedly installed on the pushing disk. A triggering button cooperating with the triggering rod is fixedly installed on the fixed disk to control the opening and closing state of the servo motor through the triggering button.

[0017] Preferably, the wind guiding mechanism includes a driving roller fixedly installed on the driving end of the servo motor, and a plurality of wind impellers for generating an air flow are fixedly installed on the driving roller. A separating disk for blocking is fixedly installed inside the heat dissipation pipe;

[0018] An air intake dust filtering box for supplementing air is fixedly connected between the heat dissipation pipe and the explosion-proof housing. A wind guiding box is fixedly installed inside the explosion-proof housing, and an upper air pipe for upward air supply is fixedly connected between the wind guiding box and the heat dissipation pipe. A plurality of blowing pipes for blowing and dissipating heat are fixedly connected to the lower part of the wind guiding box, and each blowing pipe is located between two adjacent heat dissipation fins.

[0019] A usage method of a high-safety station-use explosion-proof transformer for the above-mentioned high-safety station-use explosion-proof transformer includes the following steps:

[0020] S1. Targeted pressure monitoring is performed on the inside of the transformer body through a plurality of pressure monitoring sensors to monitor in real time whether the pressure inside the transformer body exceeds the standard;

[0021] S2. When it is detected that the pressure is relatively high, targeted air release and pressure relief are performed on this area through the pressure relief component;

[0022] S3. While pressure relief is being carried out, the unfolded states of a plurality of folding baffles inside the adjustment component are adjusted through the pressure relief component according to the magnitude of the pressure to improve the natural heat dissipation efficiency inside the transformer body;

[0023] S4. While pressure relief is being carried out, the heat dissipation component is driven to start through the pressure relief component according to the magnitude of the pressure, and targeted blowing and heat dissipation are performed on the heat dissipation fins through a plurality of blowing pipes, thereby promoting the pressure relief of the transformer body through cooling and improving the explosion-proof safety of the transformer body.

[0024] The present invention provides a high-safety station-use explosion-proof transformer and a usage method. It has the following beneficial effects:

[0025] 1. When the explosion-proof transformer used in this station is actually in use, multiple pressure monitoring sensors arranged around it can monitor the pressure inside the main body of the transformer in real time, so as to quickly judge whether there is a high-pressure situation inside the main body of the transformer, and can specifically judge the high-pressure position, which is convenient for real-time adjustment.

[0026] 2. When the explosion-proof transformer used in this station is actually in use, when the high-pressure position inside the main body of the transformer is detected, the air at this high-pressure position can be introduced into the pressure relief box through the corresponding pressure relief branch pipe, the pressure relief main pipe and the connecting pipe, and then targeted pressure relief and explosion protection can be carried out for the specific high-pressure position, the pressure relief position is more accurate and the safety is higher.

[0027] 3. When the explosion-proof transformer used in this station is actually in use, it can flexibly adjust the positions of multiple air guide heat dissipation fins according to the pressure relief situation when there is high pressure, thereby effectively improving the heat dissipation efficiency of the corresponding heat dissipation fins, and can also specifically adjust the folding width of the folding baffle, that is, it can automatically adjust the heat dissipation and pressure relief range according to the pressure size, further improving the explosion-proof effect.

[0028] 4. When the explosion-proof transformer used in this station is actually in use, it can flexibly control the start of the servo motor according to the pressure relief situation, and can generate circulating air in the explosion-proof shell through the cooperation of multiple wind impellers, and can specifically blow air to dissipate heat from the heat dissipation fins, that is, it can quickly increase the heat dissipation efficiency of the heat dissipation fins and achieve effective heat dissipation and explosion protection.

[0029] In summary, the present invention can perform multi-point pressure monitoring on the inside of the main body of the transformer, and then can monitor in real time whether there is a high-pressure situation inside the main body of the transformer. After detecting high pressure, it can perform targeted pressure relief and explosion protection on the high-pressure part, and can specifically increase the heat dissipation range and heat dissipation efficiency according to the pressure relief situation, realizing synchronous explosion protection treatment inside and outside, and the explosion-proof safety is higher.

[0030] Other features and advantages of the present invention will be described in the following specification, and part of them will be obvious from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the written specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following further describes in detail the specific embodiments of the present invention with reference to the drawings, where:

[0032] Figure 1 is a schematic structural diagram of a high-safety explosion-proof transformer for substation proposed by the present invention;

[0033] Figure 2 is Figure 1 a schematic structural diagram after rotating a certain angle;

[0034] Figure 3 is Figure 1 the internal structure schematic diagram of the explosion-proof enclosure in

[0035] Figure 4 is Figure 3 the structure schematic diagram after removing the explosion-proof enclosure in

[0036] Figure 5 is Figure 4 the structure schematic diagram after removing the transformer main body;

[0037] Figure 6 is Figure 5 the upper structure schematic diagram of the pressure relief box in

[0038] Figure 7 is Figure 5 the structure schematic diagram of the pressure relief box and the liquid guide pipe in

[0039] Figure 8 is Figure 7 the internal structure schematic diagram of the pressure relief box in

[0040] Figure 9 is Figure 7 the structure schematic diagram of the support top plate and the liquid guide pipe in

[0041] Figure 10 is Figure 9 the structure schematic diagram after rotating a certain angle;

[0042] Figure 11 is Figure 10 the top view of the upper structure of the support top plate and the transmission gear in

[0043] Figure 12 is Figure 6 the structure schematic diagram of the heat dissipation pipe and the air guide box in

[0044] Figure 13 is Figure 12 the internal structure schematic diagram of the heat dissipation pipe in

[0045] Figure 14 is Figure 13 the enlarged structure diagram of part A in

[0046] In the figure: 1 explosion-proof housing, 2 transformer main body, 3 heat dissipation fins, 4 air intake and dust filtering box, 5 heat dissipation port, 6 pressure relief box, 7 support top plate, 8 folding baffle, 9 heat dissipation pipe, 10 air guiding box, 11 main pressure relief pipe, 12 liquid guiding pipe, 13 pressure relief branch pipe, 14 piston frame, 15 pressure monitoring sensor, 16 connecting pipe, 17 pressure relief plate, 18 support spring, 19 lifting pressure plate, 20 displacement plate, 21 driven roller, 22 air intake and heat dissipation fins, 23 transmission gear, 24 transmission rack, 25 linkage plate, 26 air blowing pipe, 27 liquid distribution pipe, 28 upper air pipe, 29 air impeller, 30 pushing disk, 31 trigger rod, 32 trigger button, 33 fixed disk, 34 servo motor, 35 driving roller, 36 partition disk. Specific implementation mode

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0048] Embodiment 1: Refer to Figures 1-4 , a station explosion-proof transformer with high safety, including a transformer main body 2 arranged in an explosion-proof housing 1, and a plurality of heat dissipation fins 3 are arranged on the side of the transformer main body 2. The plurality of heat dissipation fins 3 are symmetrically arranged around the transformer main body 2, and the heat dissipation fins 3 are used to quickly dissipate the heat inside the transformer main body 2;

[0049] The explosion-proof housing 1 is made of high-strength metal (such as cast iron or aluminum alloy), can withstand the internal explosion pressure and prevent the spread of flames, and can achieve better explosion-proof efficiency;

[0050] Temperature sensors are arranged in both the transformer main body 2 and the explosion-proof housing 1, and the temperatures of the transformer main body 2 and the explosion-proof housing 1 are monitored in real time through the temperature sensors.

[0051] This station explosion-proof transformer further includes:

[0052] A pressure relief unit, including a plurality of pressure relief boxes 6 arranged in the explosion-proof housing 1. The number of pressure relief boxes 6 is set to four, which are respectively arranged at the four corners of the transformer main body 2, and a pressure relief component is arranged in each pressure relief box 6. The dead corners of the transformer main body 2 can be monitored for pressure specifically through the plurality of pressure relief components, and then the overall pressure can be judged whether it is overloaded through the local pressure.

[0053] An adjustment component and a heat dissipation component are arranged on each pressure relief box 6, and both the adjustment component and the heat dissipation component are started under the trigger of the corresponding pressure relief component;

[0054] The adjustment component is used to adjust the ventilation and heat dissipation range of the explosion-proof housing 1, thereby improving the natural heat dissipation efficiency of the explosion-proof housing 1. At the same time, it can also improve the heat dissipation range of the heat dissipation fins 3 thereon, enhancing the overall heat dissipation and ventilation effect of the transformer body 2;

[0055] The heat dissipation component can generate circulating cold air for heat dissipation inside the explosion-proof housing 1, that is, it can blow air for heat dissipation specifically to the transformer body 2 and the heat dissipation fins 3 thereon, quickly improving the heat dissipation efficiency of the heat dissipation fins 3, enabling the transformer body 2 to quickly cool down and dissipate heat, and achieving the purpose of reducing the internal pressure of the transformer body 2 through cooling.

[0056] Embodiment 2: Refer to Figures 3-8 , the different technical solution of this embodiment compared with Embodiment 1 is that: a pressure monitoring sensor 15 for monitoring and releasing the internal pressure of the transformer body 2 is provided in the pressure relief component, and targeted explosion-proof pressure relief for each area inside the transformer body 2 is realized through the pressure relief component;

[0057] The pressure relief component includes a pressure relief main pipe 11, and a connecting pipe 16 is fixedly connected between the pressure relief main pipe 11 and the pressure relief box 6. A plurality of pressure relief branch pipes 13 are fixedly connected between the pressure relief main pipe 11 and the transformer body 2, and a pressure monitoring sensor 15 for monitoring the internal pressure of the transformer body 2 is provided in each pressure relief branch pipe 13;

[0058] The number of pressure monitoring sensors 15 is set to be multiple, which can perform targeted pressure monitoring at different positions inside the transformer body 2, that is, it can monitor whether the internal pressure of the transformer body 2 exceeds the standard and whether pressure relief is required.

[0059] A buffer mechanism is provided in the pressure relief box 6. The buffer mechanism includes a pressure relief plate 17 and a lifting pressure plate 19 slidably installed in the pressure relief box 6. Two support springs 18 are fixedly installed between the pressure relief plate 17 and the lifting pressure plate 19, and the air inlet end of the connecting pipe 16 is located above the pressure relief plate 17. A control valve is provided in each pressure relief branch pipe 13;

[0060] If the pressure monitoring sensor 15 monitors that the internal pressure of the transformer body 2 is too high and needs to be adjusted, at this time, the corresponding pressure relief branch pipe 13 on the pressure monitoring sensor 15 can be opened, so that the air in the high-pressure area inside the transformer body 2 can be introduced into the pressure relief main pipe 11 through the pressure relief branch pipe 13 and directly introduced into the pressure relief box 6 through the connecting pipe 16, completing the automatic pressure relief of this high-pressure part.

[0061] In a further embodiment, the use of the pressure relief branch pipe 13 for targeted pressure relief can effectively improve the pressure relief efficiency, achieve targeted pressure relief and explosion prevention inside the transformer main body 2, and at the same time, it will not affect other areas inside the transformer main body 2 during pressure relief, thus not affecting the overall operation of the transformer main body 2. At the same time, air backfill and replenishment can also be carried out through the pressure relief branch pipe 13, that is, targeted backfill and replenishment can be carried out when the air pressure inside the transformer main body 2 is insufficient.

[0062] When the air in the pressure relief box 6 increases due to pressure relief, when the air increases, it will squeeze the pressure relief plate 17 to move downward in the pressure relief box 6. When the pressure relief plate 17 moves downward, it will drive the support spring 18 to be compressed and move downward synchronously, and then drive the lifting pressure plate 19 to move downward;

[0063] Synthetic ester oil is filled in the lower part of the lifting pressure plate 19 in the pressure relief box 6. When the lifting pressure plate 19 moves downward, it will squeeze the synthetic ester oil below it, so that the excess synthetic ester oil is automatically pressed out.

[0064] Embodiment Three: Refer to Figures 2-3 And Figures 6-14 , the different technical solution of this embodiment compared with Embodiment Two is that: a plurality of folding baffles 8 are arranged in the adjusting assembly, and the unfolded state of the folding baffles 8 is adjusted through the adjusting assembly to improve the pressure relief efficiency of the transformer main body 2;

[0065] The adjusting assembly includes a support top plate 7 fixedly installed in the explosion-proof housing 1, and a displacement plate 20 is slidably installed on the support top plate 7. A driven mechanism is installed between the displacement plate 20 and the pressure relief box 6. The driven mechanism includes a liquid guide pipe 12 fixedly connected in the pressure relief box 6 for conducting synthetic ester oil. A piston frame 14 is slidably installed in the liquid guide pipe 12, and the upper end of the piston frame 14 is fixedly installed on the displacement plate 20;

[0066] When the synthetic ester oil in the pressure relief box 6 is extruded, it will be poured into the liquid guide pipe 12, thereby pushing the piston frame 14 in the liquid guide pipe 12 to move. When the piston frame 14 moves, it will drive the displacement plate 20 fixed on it to move synchronously, that is, the displacement plate 20 can be driven to slide on the support top plate 7.

[0067] After the synthetic ester oil is introduced into the liquid guide pipe 12, and since the liquid guide pipe 12 is located below the plurality of heat dissipation fins 3, at this time, the synthetic ester oil in the liquid guide pipe 12 will absorb the heat on the heat dissipation fins 3, that is, the heat dissipation efficiency of the heat dissipation fins 3 can be improved.

[0068] A plurality of driven rollers 21 are rotatably installed on the support top plate 7, a transmission rack 24 is fixedly installed on the displacement plate 20, a transmission gear 23 is fixedly installed on each driven roller 21, and a plurality of transmission gears 23 are all engaged with the transmission rack 24;

[0069] When the displacement plate 20 moves, it drives the transmission rack 24 thereon to move. When the transmission rack 24 moves, it drives a plurality of transmission gears 23 meshed therewith to rotate synchronously, thereby driving a corresponding plurality of driven rollers 21 to rotate;

[0070] A displacement mechanism is jointly installed between the plurality of driven rollers 21 and the explosion-proof housing 1. The displacement mechanism includes a plurality of heat dissipation openings 5 opened on the explosion-proof housing 1, and each heat dissipation opening 5 is located between two corresponding heat dissipation fins 3. A folding baffle 8 is fixedly installed in each heat dissipation opening 5. An air guiding heat dissipation fin 22 is fixedly installed on each driven roller 21, and a linkage plate 25 matched with the air guiding heat dissipation fin 22 is fixedly installed on each folding baffle 8;

[0071] When the plurality of driven rollers 21 rotate, they drive the plurality of air guiding heat dissipation fins 22 to rotate, so as to adjust the deflection angle of the air guiding heat dissipation fins 22, making them more vulnerable to wind, thereby improving the heat dissipation efficiency;

[0072] When the air guiding heat dissipation fin 22 rotates, it pushes the linkage plate 25 to move. When the linkage plate 25 moves, it drives the folding baffle 8 thereon to move, so as to drive the folding baffle 8 to move and compress, thereby reducing the shielding range of the folding baffle 8 for the heat dissipation opening 5, thus increasing the heat dissipation and ventilation range of the heat dissipation opening 5, further improving the overall ventilation efficiency of the explosion-proof housing 1, and improving the heat dissipation efficiency of the heat dissipation fins 3 and the air guiding heat dissipation fins 22. In this way, the temperature of the explosion-proof housing 1 and the transformer body 2 is reduced by heat dissipation, and the explosion risk of the transformer body 2 is reduced.

[0073] In a further embodiment, a plurality of air blowing pipes 26 are arranged in the heat dissipation assembly. The heat dissipation assembly generates an air flow and blows it to the plurality of heat dissipation fins 3 through the plurality of air blowing pipes 26 to improve the heat dissipation effect of the heat dissipation fins 3;

[0074] The heat dissipation assembly includes a heat dissipation pipe 9 arranged in the explosion-proof housing 1, and a liquid separation pipe 27 for conducting synthetic ester oil is fixedly connected between the heat dissipation pipe 9 and the pressure relief box 6. A triggering mechanism and a wind guiding mechanism are arranged in the heat dissipation pipe 9, wherein the triggering mechanism is used to drive the wind guiding mechanism to start and generate an air flow to circulate and dissipate heat from the transformer body 2 in the explosion-proof housing 1.

[0075] The triggering mechanism includes a fixed disk 33 fixedly installed in the heat dissipation pipe 9. A servo motor 34 is fixedly installed on the fixed disk 33. A pushing disk 30 is slidably installed in the heat dissipation pipe 9. A triggering rod 31 is fixedly installed on the pushing disk 30, and a triggering button 32 matched with the triggering rod 31 is fixedly installed on the fixed disk 33. The opening and closing state of the servo motor 34 is controlled by the triggering button 32;

[0076] When the synthetic ester oil in the pressure relief box 6 is extruded, it will pour into the heat dissipation pipe 9 and accumulate on the side of the push plate 30 in the heat dissipation pipe 9. As the synthetic ester oil gradually increases, the push plate 30 will gradually move under the push of the synthetic ester oil, thereby driving the trigger rod 31 to gradually move. When the trigger rod 31 moves to touch the trigger button 32, the trigger button 32 will be triggered at this time, and then the servo motor 34 will be controlled to start.

[0077] The air guiding mechanism includes a driving roller 35 fixedly installed on the driving end of the servo motor 34, and a plurality of air impellers 29 for generating air currents are fixedly installed on the driving roller 35. A partition plate 36 for blocking is fixedly installed in the heat dissipation pipe 9;

[0078] When the servo motor 34 starts, it will drive the driving roller 35 on it to rotate. When the driving roller 35 rotates, it will drive the plurality of air impellers 29 on it to rotate. When the plurality of air impellers 29 rotate, air currents will be generated inside the heat dissipation pipe 9;

[0079] A wind guiding and dust filtering box 4 for supplementing air is fixedly connected between the heat dissipation pipe 9 and the explosion-proof shell 1. A wind guiding box 10 is fixedly installed in the explosion-proof shell 1, and an upper air pipe 28 for guiding air upward is fixedly connected between the wind guiding box 10 and the heat dissipation pipe 9. A plurality of air blowing pipes 26 for blowing air for heat dissipation are fixedly connected to the lower part of the wind guiding box 10, and each air blowing pipe 26 is located between two adjacent heat dissipation fins 3;

[0080] When the air impellers 29 rotate, they will suck the cold air outside the explosion-proof shell 1 into the heat dissipation pipe 9 through the wind guiding and dust filtering box 4, and after forming air currents in the heat dissipation pipe 9, they will be introduced into the wind guiding box 10 through the upper air pipe 28. When the air in the wind guiding box 10 increases, it will blow vertically downward through the plurality of air blowing pipes 26;

[0081] A plurality of circulating air grooves are provided in the explosion-proof shell 1. The air currents in the air blowing pipes 26 will blow on the two heat dissipation fins 3 on both sides of them specifically, which can quickly improve the heat dissipation efficiency of the heat dissipation fins 3. At the same time, the air currents generated by the blowing of the air blowing pipes 26 will circulate in the circulating air grooves in the explosion-proof shell 1, and can further accelerate the heat dissipation effect of the explosion-proof shell 1 and the transformer body 2 when flowing, thereby quickly reducing the temperature of the transformer body 2, realizing the internal voltage reduction of the transformer body 2, reducing the risk of its explosion, and realizing effective explosion-proof protection.

[0082] Return cylinders are provided in both the heat dissipation pipe 9 and the liquid guide pipe 12. The synthetic ester oil poured into the heat dissipation pipe 9 and the liquid guide pipe 12 is pushed back into the pressure relief box 6 through the return cylinders, which is convenient for re-adjusting heat dissipation and explosion protection.

[0083] The specific explosion-proof principle of the explosion-proof transformer used in this station is:

[0084] By using the pressure monitoring sensor 15 to conduct targeted pressure monitoring at different positions inside the transformer main body 2, it is possible to monitor whether the pressure inside the transformer main body 2 exceeds the standard and whether pressure relief is required;

[0085] When the pressure monitoring sensor 15 detects that the pressure inside the transformer main body 2 is too high and needs to be adjusted, the corresponding pressure relief branch pipe 13 on the pressure monitoring sensor 15 can be opened at this time. The air in the high-pressure area inside the transformer main body 2 can be introduced into the pressure relief main pipe 11 through the pressure relief branch pipe 13 and directly introduced into the pressure relief box 6 through the connecting pipe 16, thus completing the automatic pressure relief of this high-pressure part;

[0086] When the air in the pressure relief box 6 increases due to pressure relief, it will squeeze the pressure relief plate 17 to move downward inside the pressure relief box 6. When the pressure relief plate 17 moves downward, it will drive the support spring 18 to be compressed and move downward synchronously, and then drive the lifting pressure plate 19 to move downward. When the lifting pressure plate 19 moves downward, it will squeeze the synthetic ester oil below it to be automatically pressed out.

[0087] When the synthetic ester oil in the pressure relief box 6 is extruded, it will be poured into the liquid guide pipe 12, thereby pushing the piston frame 14 in the liquid guide pipe 12 to move. When the piston frame 14 moves, it will drive the displacement plate 20 to move synchronously, that is, to slide on the support top plate 7;

[0088] When the displacement plate 20 moves, it will drive the transmission rack 24 to move. When the transmission rack 24 moves, it will drive a plurality of transmission gears 23 and a plurality of driven rollers 21 to rotate. When the plurality of driven rollers 21 rotate, they will drive a plurality of air guiding and heat dissipating fins 22 to rotate, and the deflection angle of the air guiding and heat dissipating fins 22 can be adjusted to make it more susceptible to wind, thereby improving its heat dissipation efficiency.

[0089] When the air guiding and heat dissipating fins 22 rotate, they will push the linkage plate 25 to move. When the linkage plate 25 moves, it will drive the folding baffle 8 on it to move and compress, thereby reducing the shielding range of the folding baffle 8 for the heat dissipation port 5, increasing the heat dissipation and ventilation range of the heat dissipation port 5, improving the overall ventilation efficiency of the explosion-proof enclosure 1, and improving the heat dissipation efficiency of the heat dissipation fins 3 and the air guiding and heat dissipating fins 22. In this way, the temperature of the explosion-proof enclosure 1 and the transformer main body 2 can be reduced by means of heat dissipation and cooling, and the explosion risk of the transformer main body 2 can be reduced.

[0090] When the synthetic ester oil in the pressure relief box 6 is extruded, it will be poured into the heat dissipation pipe 9 and will accumulate on the side of the push plate 30 in the heat dissipation pipe 9. As the synthetic ester oil gradually increases, the push plate 30 will gradually move under the push of the synthetic ester oil and drive the trigger rod 31 to touch the trigger button 32. At this time, the trigger button 32 will be triggered, and then the servo motor 34 will be controlled to start;

[0091] When the servo motor 34 starts, it drives the driving roller 35 to rotate. When the driving roller 35 rotates, it drives a plurality of wind impellers 29 thereon to rotate. When the wind impellers 29 rotate, they suck the cold air outside the explosion-proof shell 1 into the heat dissipation pipe 9 through the air intake and dust filtering box 4, and form an air flow in the heat dissipation pipe 9, and then introduce it into the air guiding box 10 through the upper air pipe 28. When the air in the air guiding box 10 increases, it will blow vertically downward through a plurality of air blowing pipes 26;

[0092] The air flow in the air blowing pipe 26 will blow on the two heat dissipation fins 3 on both sides thereof specifically, which can quickly improve the heat dissipation efficiency of the heat dissipation fins 3. At the same time, the air flow generated by the blowing of the air blowing pipe 26 will circulate in the circulation air groove in the explosion-proof shell 1, and can further accelerate the heat dissipation effect of the explosion-proof shell 1 and the transformer main body 2 during the flow, thereby quickly reducing the temperature of the transformer main body 2, realizing the internal voltage reduction of the transformer main body 2, reducing the risk of its explosion, and realizing effective explosion-proof protection.

[0093] The embodiment of the present invention also provides a use method of a high-safety station explosion-proof transformer for the above-mentioned high-safety station explosion-proof transformer, including the following steps:

[0094] S1. Specifically monitor the pressure inside the transformer main body 2 through a plurality of pressure monitoring sensors 15, and real-time monitor whether the pressure inside the transformer main body 2 exceeds the standard;

[0095] S2. If it is monitored that the pressure is relatively high, perform targeted air release and pressure relief in this area through the pressure relief component;

[0096] S3. While relieving the pressure, adjust the unfolded state of a plurality of folding baffles 8 in the adjustment component according to the pressure magnitude through the pressure relief component, and improve the natural heat dissipation efficiency inside the transformer main body 2;

[0097] S4. While relieving the pressure, drive the heat dissipation component to start according to the pressure magnitude through the pressure relief component, and perform targeted blowing and heat dissipation on the heat dissipation fins 3 through a plurality of air blowing pipes 26, and then promote the pressure relief of the transformer main body 2 by cooling, and improve the explosion-proof safety of the transformer main body 2.

[0098] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A high-security station explosion-proof transformer, comprising a transformer main body (2) arranged inside an explosion-proof shell (1), and a plurality of heat dissipation fins (3) are arranged on the side of the transformer main body (2), characterized in that, It further includes: A pressure relief unit, which includes a plurality of pressure relief boxes (6) arranged inside the explosion-proof housing (1), and a pressure relief component is arranged in each pressure relief box (6). A pressure monitoring sensor (15) for monitoring and releasing the internal pressure of the transformer body (2) is arranged in the pressure relief component. Targeted explosion-proof pressure relief for each area inside the transformer body (2) is achieved through the pressure relief component. An adjustment component and a heat dissipation component are arranged on each pressure relief box (6), and both the adjustment component and the heat dissipation component are activated when the corresponding pressure relief component is triggered; A plurality of folding baffles (8) are arranged in the adjustment component. The unfolded state of the folding baffles (8) is adjusted through the adjustment component to improve the pressure relief efficiency of the transformer body (2). A plurality of air blowing pipes (26) are arranged in the heat dissipation component. An air flow is generated through the heat dissipation component and blown to a plurality of heat dissipation fins (3) through the plurality of air blowing pipes (26) to improve the heat dissipation effect of the heat dissipation fins (3).

2. The high-security station explosion-proof transformer according to claim 1, wherein The pressure relief component includes a pressure relief main pipe (11), and a communication pipe (16) is fixedly connected between the pressure relief main pipe (11) and the pressure relief box (6). A plurality of pressure relief branch pipes (13) are fixedly connected between the pressure relief main pipe (11) and the transformer body (2), and a pressure monitoring sensor (15) for monitoring the internal pressure of the transformer body (2) is arranged in each pressure relief branch pipe (13). A buffer mechanism is arranged in the pressure relief box (6).

3. The high-security station explosion-proof transformer according to claim 2, wherein, The buffer mechanism includes a pressure relief plate (17) and a lifting pressure plate (19) slidably installed in the pressure relief box (6). Two support springs (18) are fixedly installed between the pressure relief plate (17) and the lifting pressure plate (19). The air inlet end of the communication pipe (16) is located above the pressure relief plate (17). A control valve is arranged in each pressure relief branch pipe (13). Synthetic ester oil is filled in the pressure relief box (6) below the lifting pressure plate (19).

4. The high-security station explosion-proof transformer according to claim 3, characterized in that, The adjustment component includes a support top plate (7) fixedly installed inside the explosion-proof housing (1), and a displacement plate (20) is slidably installed on the support top plate (7). A driven mechanism is installed between the displacement plate (20) and the pressure relief box (6). A plurality of driven rollers (21) are rotatably installed on the support top plate (7). A transmission rack (24) is fixedly installed on the displacement plate (20). A transmission gear (23) is fixedly installed on each driven roller (21), and a plurality of transmission gears (23) are all engaged with the transmission rack (24). A deviation mechanism is jointly installed between the plurality of driven rollers (21) and the explosion-proof housing (1).

5. A highly secure substation explosion-proof transformer according to claim 4, characterized in that, The driven mechanism includes a liquid guide pipe (12) fixedly connected inside the pressure relief box (6) for conducting synthetic ester oil. A piston frame (14) is slidably installed in the liquid guide pipe (12), and the upper end of the piston frame (14) is fixedly installed on the displacement plate (20).

6. A highly secure substation explosion-proof transformer according to claim 4, characterized in that, The offset mechanism includes a plurality of heat dissipation openings (5) formed in the explosion-proof housing (1), and each heat dissipation opening (5) is located between two corresponding heat dissipation fins (3). A folding baffle (8) is fixedly installed in each heat dissipation opening (5). An air guiding heat dissipation fin (22) is fixedly installed on each driven roller (21), and a linkage plate (25) cooperating with the air guiding heat dissipation fin (22) is fixedly installed on each folding baffle (8).

7. The high-security on-site explosion-proof transformer according to claim 6, characterized in that, The heat dissipation component includes a heat dissipation pipe (9) arranged in the explosion-proof housing (1), and a liquid separation pipe (27) for conducting synthetic ester oil is fixedly connected between the heat dissipation pipe (9) and the pressure relief box (6). A triggering mechanism and a wind guiding mechanism are arranged in the heat dissipation pipe (9), wherein the triggering mechanism is used to drive the wind guiding mechanism to start and generate an air flow to circulate and dissipate heat from the transformer body (2) in the explosion-proof housing (1).

8. A highly secure on-site explosion-proof transformer according to claim 7, characterized in that, The triggering mechanism includes a fixed disk (33) fixedly installed in the heat dissipation pipe (9). A servo motor (34) is fixedly installed on the fixed disk (33). A pushing disk (30) is slidably installed in the heat dissipation pipe (9), and a triggering rod (31) is fixedly installed on the pushing disk (30). A trigger button (32) cooperating with the triggering rod (31) is fixedly installed on the fixed disk (33), and the on-off state of the servo motor (34) is controlled by the trigger button (32).

9. The high-security substation explosion-proof transformer according to claim 8, characterized in that, The wind guiding mechanism includes a driving roller (35) fixedly installed on the driving end of the servo motor (34), and a plurality of wind impellers (29) for generating an air flow are fixedly installed on the driving roller (35). A partition disk (36) for blocking is fixedly installed in the heat dissipation pipe (9); An air guiding dust filtering box (4) for supplementing air is fixedly connected between the heat dissipation pipe (9) and the explosion-proof housing (1). An air guiding box (10) is fixedly installed in the explosion-proof housing (1), and an upper air pipe (28) for upward air supply is fixedly connected between the air guiding box (10) and the heat dissipation pipe (9). A plurality of air blowing pipes (26) for blowing and dissipating heat are fixedly connected to the lower part of the air guiding box (10), and each air blowing pipe (26) is located between two adjacent heat dissipation fins (3).

10. A method for using a high-security substation explosion-proof transformer, which is used for the high-security substation explosion-proof transformer according to any one of claims 1-9, characterized in that, Including the following steps: S1. Targeted pressure monitoring is carried out on the inside of the transformer body (2) through a plurality of pressure monitoring sensors (15) to monitor in real time whether the internal pressure of the transformer body (2) exceeds the standard; S2. When it is detected that the pressure is relatively high, targeted air release and pressure relief are carried out in this area through the pressure relief component; S3. While relieving the pressure, the unfolding state of a plurality of folding baffles (8) in the adjusting component is adjusted through the pressure relief component according to the pressure magnitude, so as to improve the natural heat dissipation efficiency inside the transformer body (2); S4. While relieving the pressure, the heat dissipation component is driven to start through the pressure relief component according to the pressure magnitude, and the heat dissipation fins (3) are subjected to targeted blowing and heat dissipation through a plurality of air blowing pipes (26), so as to promote the pressure relief of the transformer body (2) by cooling and improve the explosion-proof safety of the transformer body (2).

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