A high-safety explosion-proof transformer for station use and its use method

Abstract

The present invention discloses a high-safety explosion-proof transformer for stations and a method for using the same, and relates to the technical field of transformers. The present invention includes a transformer main body arranged in an explosion-proof housing, and a plurality of heat dissipation fins are arranged on the side of the transformer main body, and also includes: a pressure relief unit, including a plurality of pressure relief boxes arranged in the explosion-proof housing, and each pressure relief box is provided with a pressure relief assembly, and the pressure relief assembly is provided with a pressure monitoring sensor for monitoring and releasing the internal pressure of the transformer main body, and each of the pressure relief boxes is provided with an adjustment assembly and a heat dissipation assembly. The advantage is that the present invention can perform multi-point pressure monitoring on the inside of the transformer main body, and then monitor in real time whether there is high pressure inside the transformer main body, and after monitoring the high pressure, the high-pressure part can be targeted for pressure relief and explosion protection, and the heat dissipation range and heat dissipation efficiency can be targetedly improved according to the pressure relief situation, thereby achieving synchronous explosion-proof treatment inside and outside, and having higher explosion-proof safety.

Description

Technical Field

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

[0002] Station transformers are specially used in power equipment stations such as substations and distribution rooms. Transformers generate a lot of heat during actual use. Transformers are prone to explosion risks if they work in a high-temperature environment for a long time. Therefore, explosion-proof structures are usually installed on transformers to improve their operating safety.

[0003] Existing explosion-proof transformers use a variety of methods to achieve explosion-proof protection, such as an explosion-proof transformer with publication number CN106024277A, which includes a transformer body, a top of the transformer body having drain outlets arranged at equal distances, a first funnel and a second funnel respectively provided on the top of the transformer body, a filter fixedly connected to the interior of the first funnel and the second funnel, a temperature sensor, a tool box and a condenser respectively provided inside the transformer body, the top of the temperature sensor and the top of the tool box both being fixedly connected to the inner wall of the transformer body, a power supply and a microprocessor respectively provided inside the tool box, and the bottom of the condenser being fixedly connected to the inner bottom wall of the transformer body;

[0004] Existing explosion-proof transformers usually achieve explosion-proofness by temperature monitoring and cooling. However, when the transformer is actually in use, a large pressure will be generated inside the transformer due to the increase in temperature. If the pressure is too high and exceeds the limit value, there is a risk of explosion. For example, the above-mentioned referenced prior art only monitors the temperature of the transformer body, but does not monitor the pressure inside the transformer body in real time. It is impossible to determine whether the inside of the transformer is in a high-pressure and explosive state. At the same time, the device uses a water pipe set inside the transformer body for water cooling, and the water pipe is prone to leakage. Leakage will cause direct damage to the inside of the transformer body, which has certain limitations.

[0005] Therefore, it is urgent to design a high-safety explosion-proof transformer for station use and a method of use to solve the above problems. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the present invention provides a highly safe explosion-proof transformer for station use and a method of use, which solves the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-safety explosion-proof transformer for station use, comprising a transformer body disposed in an explosion-proof housing, with a plurality of heat dissipation fins disposed on the side of the transformer body, and further comprising:

[0008] The pressure relief unit includes multiple pressure relief boxes arranged in an explosion-proof housing, each of which is provided with a pressure relief assembly, and the pressure relief assembly is provided with a pressure monitoring sensor for monitoring the internal pressure of the transformer body. The pressure relief assembly is used to achieve targeted explosion-proof pressure relief in various areas inside the transformer body. Each of the pressure relief boxes is provided with an adjustment assembly and a heat dissipation assembly, and both the adjustment assembly and the heat dissipation assembly are activated when triggered by the corresponding pressure relief assembly;

[0009] A plurality of folding baffles are provided in the adjustment component, and the unfolding state of the folding baffles is adjusted by the adjustment component to improve the pressure relief efficiency of the transformer body. A plurality of blowing pipes are provided in the heat dissipation component, and wind airflow is generated by the heat dissipation component and blown to a plurality of heat dissipation fins through the plurality of blowing pipes, thereby improving the heat dissipation effect of the heat dissipation fins.

[0010] Preferably, the pressure relief assembly includes a pressure relief main pipe, and a connecting 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 each pressure relief branch pipe is provided with a pressure monitoring sensor for monitoring the internal pressure of the transformer body, and a buffer mechanism is provided in the pressure relief box.

[0011] Preferably, the buffer mechanism includes a pressure relief plate and a lifting plate slidably installed in the pressure relief box, and two support springs are fixedly installed between the pressure relief plate and the lifting plate, and the air inlet end of the connecting pipe is located at the upper part of the pressure relief plate, and a control valve is provided in each of the pressure relief branch pipes, and the lower part of the lifting plate in the pressure relief box is filled with synthetic ester oil.

[0012] Preferably, the adjustment assembly includes a supporting top plate fixedly mounted in the explosion-proof casing, and a displacement plate is slidably mounted on the supporting top plate, a driven mechanism is installed between the displacement plate and the pressure relief box, a plurality of driven rollers are rotatably mounted on the supporting top plate, a transmission gear rod is fixedly mounted on the displacement plate, a transmission gear is fixedly mounted on each of the driven rollers, and a plurality of transmission gears are engaged with the transmission gear rod, and a biasing mechanism is commonly installed between the plurality of driven rollers and the explosion-proof casing.

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

[0014] Preferably, the biasing mechanism includes a plurality of heat dissipation ports opened on the explosion-proof casing, and each heat dissipation port is located between two corresponding heat dissipation fins, a folding baffle is fixedly installed in each heat dissipation port, an air-inducing heat sink is fixedly installed on each driven roller, and a linkage plate that cooperates with the air-inducing heat sink is fixedly installed on each folding baffle.

[0015] Preferably, the heat dissipation assembly includes a heat dissipation pipe arranged in an explosion-proof casing, and a liquid distribution pipe for conducting synthetic ester oil is fixedly connected between the heat dissipation pipe and the pressure relief box. A trigger mechanism and an air guide mechanism are provided in the heat dissipation pipe, wherein the trigger mechanism is used to drive the air guide mechanism to start and generate wind power and airflow to circulate and dissipate heat for the transformer body in the explosion-proof casing.

[0016] Preferably, the trigger mechanism includes a fixed plate fixedly installed in the heat dissipation tube, a servo motor is fixedly installed on the fixed plate, a push plate is slidably installed in the heat dissipation tube, a trigger rod is fixedly installed on the push plate, and a trigger button cooperating with the trigger rod is fixedly installed on the fixed plate, and the opening and closing state of the servo motor is controlled by the trigger button.

[0017] Preferably, the air guide mechanism includes a driving roller fixedly mounted on the driving end of the servo motor, and a plurality of wind impellers for generating wind flow are fixedly mounted on the driving roller, and a partition plate for blocking is fixedly mounted in the heat dissipation pipe;

[0018] An induced draft dust filter box for replenishing air is fixedly connected between the heat dissipation pipe and the explosion-proof shell, an air guide box is fixedly installed in the explosion-proof shell, and an upper air duct for upper wind is fixedly connected between the air guide box and the heat dissipation pipe, and a plurality of blowing pipes for blowing air for heat dissipation are fixedly connected to the lower part of the air guide box, and each blowing pipe is located between two adjacent heat dissipation fins.

[0019] A method for using a high-safety explosion-proof transformer for a station, which is used for the above-mentioned high-safety explosion-proof transformer for a station, comprises the following steps:

[0020] S1. Use multiple pressure monitoring sensors to conduct targeted pressure monitoring inside the transformer body to monitor in real time whether the internal pressure of the transformer body exceeds the standard;

[0021] S2. When the monitored pressure is high, the pressure relief component is used to release air and relieve pressure in the area;

[0022] S3, pressure relief. At the same time, the pressure relief component is used to adjust the expansion state of multiple folding baffles in the regulating component according to the pressure, thereby improving the natural heat dissipation efficiency inside the transformer body;

[0023] S4, pressure relief. At the same time, the heat dissipation component is driven to start through the pressure relief component according to the pressure size, and the heat dissipation fins are blown with targeted air through multiple blowing pipes to dissipate heat, thereby promoting the pressure relief of the transformer body by cooling, and improving the explosion-proof safety of the transformer body.

[0024] The present invention provides a highly safe explosion-proof transformer for station use and a method for using the transformer. It has the following beneficial effects:

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

[0026] 2. When the explosion-proof transformer used in this station is actually used, when the high-voltage position inside the transformer body is monitored, the air at the high-voltage position can be introduced into the pressure relief box through the corresponding pressure relief branch pipe, pressure relief main pipe and connecting pipe, so that targeted pressure relief and explosion protection can be carried out at the specific high-voltage position, and the pressure relief position is more accurate and safer.

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

[0028] 4. When the explosion-proof transformer used in this station is actually used, it can flexibly control the start-up of the servo motor according to the pressure relief situation, and can generate circulating air in the explosion-proof casing through the cooperation of multiple wind impellers, and can carry out targeted blowing and heat dissipation on the heat dissipation fins, which can quickly increase the heat dissipation efficiency of the heat dissipation fins and achieve effective heat dissipation and explosion protection.

[0029] To sum up, the present invention can perform multi-point pressure monitoring inside the transformer body, and then monitor in real time whether high pressure occurs inside the transformer body. After monitoring the high pressure, the high-pressure part can be targeted for pressure relief and explosion prevention, and the heat dissipation range and heat dissipation efficiency can be targetedly improved according to the pressure relief situation, thereby realizing synchronous explosion-proof treatment inside and outside, and having higher explosion-proof safety.

[0030] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

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

[0033] Figure 2 for Figure 1 Schematic diagram of the structure after rotating a certain angle;

[0034] Figure 3 for Figure 1 Schematic diagram of the internal structure of the explosion-proof housing;

[0035] Figure 4 for Figure 3 Schematic diagram of the structure after removing the explosion-proof shell;

[0036] Figure 5 for Figure 4 Schematic diagram of the structure after removing the transformer body;

[0037] Figure 6 for Figure 5 Schematic diagram of the upper structure of the middle pressure relief box;

[0038] Figure 7 for Figure 5 Schematic diagram of the structure of the middle pressure relief box and the catheter;

[0039] Figure 8 for Figure 7 Schematic diagram of the internal structure of the middle pressure relief box;

[0040] Figure 9 for Figure 7 Schematic diagram of the structure of the middle support top plate and the liquid guide tube;

[0041] Figure 10 for Figure 9 Schematic diagram of the structure after rotating a certain angle;

[0042] Figure 11 for Figure 10 A top view of the upper structure of the middle support top plate and transmission gear;

[0043] Figure 12 for Figure 6 Schematic diagram of the structure of the heat dissipation pipe and air guide box;

[0044] Figure 13 for Figure 12 Schematic diagram of the internal structure of the heat dissipation pipe;

[0045] Figure 14 for Figure 13 A magnified view of the structure of part A in the middle.

[0046] In the figure: 1 explosion-proof housing, 2 transformer body, 3 heat sink fin, 4 induced draft dust filter box, 5 heat dissipation port, 6 pressure relief box, 7 support top plate, 8 folding baffle, 9 heat dissipation pipe, 10 air guide box, 11 pressure relief main pipe, 12 liquid guide pipe, 13 pressure relief branch pipe, 14 piston rack, 15 pressure monitoring sensor, 16 connecting pipe, 17 pressure relief plate, 18 support spring, 19 lifting and lowering plate, 20 displacement plate, 21 driven roller, 22 induced draft heat sink, 23 transmission gear, 24 transmission gear rod, 25 linkage plate, 26 blowing pipe, 27 liquid distribution pipe, 28 upper air duct, 29 fan impeller, 30 push plate, 31 trigger lever, 32 trigger button, 33 fixed plate, 34 servo motor, 35 drive roller, 36 partition plate. DETAILED DESCRIPTION

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

[0048] Example 1: Reference Figures 1-4 A high-safety explosion-proof transformer for station use includes a transformer body 2 disposed in an explosion-proof housing 1, and a plurality of heat dissipation fins 3 are provided on the side of the transformer body 2. The plurality of heat dissipation fins 3 are symmetrically arranged around the four sides of the transformer body 2, and the heat dissipation fins 3 are used to quickly dissipate the heat inside the transformer body 2;

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

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

[0051] The explosion-proof transformers used in this station also include:

[0052] The pressure relief unit includes a plurality of pressure relief boxes 6 arranged in the explosion-proof housing 1. The number of the pressure relief boxes 6 is set to four, which are respectively arranged at the four corners of the transformer body 2, and each pressure relief box 6 is provided with a pressure relief component. The multiple pressure relief components can be used to perform targeted pressure monitoring on the dead corners of the transformer body 2, and then judge whether the overall pressure is overloaded by the local pressure.

[0053] Each pressure relief box 6 is provided with an adjustment component and a heat dissipation component, and both the adjustment component and the heat dissipation component are activated when triggered by 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 efficiency of natural heat dissipation of the explosion-proof housing 1, and at the same time, it can increase the heat dissipation range of the heat dissipation fins 3 thereon, thereby improving the overall heat dissipation and ventilation effect of the transformer body 2;

[0055] The heat dissipation component can generate circulating heat dissipation cold air inside the explosion-proof housing 1, which can be used to blow air to dissipate heat in a targeted manner on the transformer body 2 and the heat dissipation fins 3 thereon, thereby quickly improving the heat dissipation efficiency of the heat dissipation fins 3, and allowing the transformer body 2 to quickly cool down and dissipate heat, and achieve the purpose of reducing the pressure inside the transformer body 2 by cooling.

[0056] Example 2: Reference Figure 3-Figure 8 The difference between this embodiment and the first embodiment is that a pressure monitoring sensor 15 for monitoring the internal pressure of the transformer body 2 is provided in the pressure relief assembly, and the targeted explosion-proof pressure relief of each area inside the transformer body 2 is achieved through the pressure relief assembly;

[0057] The pressure relief assembly 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 each pressure relief branch pipe 13 is provided with a pressure monitoring sensor 15 for monitoring the internal pressure of the transformer body 2;

[0058] The number of pressure monitoring sensors 15 is set to be multiple, and targeted pressure monitoring can be performed on different positions in the transformer body 2, so as to monitor whether the pressure inside 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, which includes a pressure relief plate 17 and a lifting plate 19 slidably mounted in the pressure relief box 6, and two support springs 18 are fixedly installed between the pressure relief plate 17 and the lifting plate 19, and the air inlet end of the connecting pipe 16 is located above the pressure relief plate 17, and a control valve is provided in each pressure relief branch pipe 13;

[0060] If the pressure monitoring sensor 15 detects that the pressure inside the transformer 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, so that the air in the high-pressure area of ​​the transformer body 2 can be introduced into the pressure relief main pipe 11 through the pressure relief branch pipe 13, and then directly introduced into the pressure relief box 6 through the connecting pipe 16, thereby completing the automatic pressure relief of the 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 efficiency of pressure relief, realize targeted pressure relief and explosion prevention inside the transformer main body 2, and at the same time, the pressure relief will not affect other areas inside the transformer main body 2, and thus will not affect the overall operation of the transformer main body 2. At the same time, the pressure relief branch pipe 13 can also be used to backfill the air, that is, targeted backfilling can be performed when the air pressure in the transformer main body 2 is insufficient.

[0062] When the air in the pressure relief box 6 increases due to pressure relief, the increased air 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, thereby driving the lifting plate 19 to move downward;

[0063] The lower portion of the pressure relief box 6 located below the lifting plate 19 is filled with synthetic ester oil. When the lifting plate 19 moves downward, the synthetic ester oil below it is squeezed, so that excess synthetic ester oil is automatically squeezed out.

[0064] Example 3: Reference Figure 2-Figure 3 as well as Figure 6-Figure 14 The difference between this embodiment and the second embodiment is that: a plurality of folding baffles 8 are provided in the adjustment component, and the unfolding state of the folding baffles 8 is adjusted by the adjustment component to improve the pressure relief efficiency of the transformer body 2;

[0065] The adjustment assembly includes a support top plate 7 fixedly mounted within the explosion-proof housing 1, with a displacement plate 20 slidably mounted 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 tube 12 fixedly connected to the pressure relief box 6 for conducting synthetic ester oil. A piston rack 14 is slidably mounted within the liquid guide tube 12, and the upper end of the piston rack 14 is fixedly mounted on the displacement plate 20.

[0066] When the synthetic ester oil in the pressure relief box 6 is squeezed out, it will be poured into the liquid guide tube 12, thereby pushing the piston rack 14 in the liquid guide tube 12 to move. When the piston rack 14 moves, it will drive the displacement plate 20 fixed thereon to move synchronously, thereby driving the displacement plate 20 to slide on the support top plate 7.

[0067] After the synthetic ester oil is introduced into the liquid conduit 12 , and because the liquid conduit 12 is located below the plurality of heat sinks 3 , the synthetic ester oil in the liquid conduit 12 will absorb the heat on the heat sinks 3 , thereby improving the heat dissipation efficiency of the heat sinks 3 .

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

[0069] When the displacement plate 20 moves, it drives the transmission gear rod 24 thereon to move. When the transmission gear rod 24 moves, it drives the multiple transmission gears 23 meshing with it to rotate synchronously, thereby driving the corresponding multiple driven rollers 21 to rotate.

[0070] A biasing mechanism is installed between the multiple driven rollers 21 and the explosion-proof housing 1. The biasing mechanism includes multiple heat dissipation ports 5 opened on the explosion-proof housing 1, and each heat dissipation port 5 is located between two corresponding heat dissipation fins 3. A folding baffle 8 is fixedly installed in each heat dissipation port 5. An air-inducing heat sink 22 is fixedly installed on each driven roller 21, and a linkage plate 25 that cooperates with the air-inducing heat sink 22 is fixedly installed on each folding baffle 8.

[0071] When the multiple driven rollers 21 rotate, they drive the multiple induced air radiating fins 22 to rotate, and the deflection angle of the induced air radiating fins 22 can be adjusted to make them more susceptible to wind, thereby improving their heat dissipation efficiency;

[0072] When the induced draft heat sink 22 rotates, it 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, which can drive the folding baffle 8 to move and compress, thereby reducing the blocking range of the folding baffle 8 on the heat dissipation port 5, thereby increasing the heat dissipation and ventilation range of the heat dissipation port 5, thereby 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 induced draft heat sink 22, so as to reduce the temperature of the explosion-proof housing 1 and the transformer body 2 by heat dissipation and cooling, thereby reducing the explosion risk of the transformer body 2.

[0073] In a further embodiment, a plurality of blowing pipes 26 are provided in the heat dissipation assembly, and wind airflow is generated by the heat dissipation assembly and blown to the plurality of heat dissipation fins 3 via the plurality of blowing pipes 26, thereby improving 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 casing 1, and a liquid distribution pipe 27 for conducting synthetic ester oil is fixedly connected between the heat dissipation pipe 9 and the pressure relief box 6. A trigger mechanism and an air guide mechanism are provided in the heat dissipation pipe 9, wherein the trigger mechanism is used to drive the air guide mechanism to start and generate wind power and airflow to circulate and dissipate heat for the transformer body 2 in the explosion-proof casing 1.

[0075] The trigger mechanism includes a fixed plate 33 fixedly mounted in the heat pipe 9, a servo motor 34 fixedly mounted on the fixed plate 33, a push plate 30 slidably mounted in the heat pipe 9, a trigger rod 31 fixedly mounted on the push plate 30, and a trigger button 32 fixedly mounted on the fixed plate 33 that cooperates with the trigger rod 31. The trigger button 32 controls the on / off state of the servo motor 34.

[0076] When the synthetic ester oil in the pressure relief box 6 is squeezed out, it will be poured into the heat dissipation tube 9 and will accumulate on the side of the push plate 30 in the heat dissipation tube 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, and the servo motor 34 will be controlled to start it.

[0077] The wind guide mechanism includes a driving roller 35 fixedly mounted on the driving end of the servo motor 34, and a plurality of wind impellers 29 for generating wind power and airflow are fixedly mounted on the driving roller 35, and a partition plate 36 for blocking is fixedly mounted in the heat dissipation pipe 9;

[0078] When the servo motor 34 is started, it drives the driving roller 35 thereon to rotate. When the driving roller 35 rotates, it drives the multiple impellers 29 thereon to rotate. When the multiple impellers 29 rotate, wind force and airflow are generated inside the heat dissipation pipe 9.

[0079] An air filter box 4 for replenishing air is fixedly connected between the heat dissipation pipe 9 and the explosion-proof housing 1. An air guide box 10 is fixedly installed in the explosion-proof housing 1. An upper air duct 28 for upper air is fixedly connected between the air guide box 10 and the heat dissipation pipe 9. A plurality of blowing pipes 26 for blowing air and dissipating heat are fixedly connected to the lower part of the air guide box 10, and each blowing pipe 26 is located between two adjacent heat dissipation fins 3.

[0080] When the impeller 29 rotates, it draws cold air from outside the explosion-proof housing 1 into the heat dissipation pipe 9 through the induced draft dust box 4. After forming a wind flow in the heat dissipation pipe 9, the wind flow is introduced into the air guide box 10 through the upper air pipe 28. When the air in the air guide box 10 increases, it is blown vertically downward through the multiple blowing pipes 26.

[0081] A plurality of circulating air slots are provided in the explosion-proof housing 1, and the wind flow in the blowing pipe 26 will blow air to the two heat dissipating fins 3 on both sides thereof in a targeted manner, thereby quickly improving the heat dissipation efficiency of the heat dissipating fins 3. At the same time, the wind flow generated by the blowing pipe 26 will circulate in the circulating air slots in the explosion-proof housing 1, and can further accelerate the heat dissipation effect of the explosion-proof housing 1 and the transformer main body 2 during the flow, thereby quickly reducing the temperature of the transformer main body 2, realizing internal pressure reduction of the transformer main body 2, reducing the risk of its explosion, and realizing effective explosion-proof protection.

[0082] The heat dissipation pipe 9 and the liquid guide pipe 12 are both provided with a liquid return cylinder, which pushes the synthetic ester oil poured into the heat dissipation pipe 9 and the liquid guide pipe 12 back into the pressure relief box 6 to facilitate further heat dissipation and explosion-proof adjustment.

[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 perform targeted pressure monitoring at different locations within the transformer body 2, it is possible to detect whether the pressure inside the transformer body 2 exceeds the standard and whether pressure relief is required;

[0085] If the pressure monitoring sensor 15 detects that the pressure inside the transformer body 2 is too high and needs to be adjusted, the corresponding pressure relief branch 13 on the pressure monitoring sensor 15 can be opened, so that the air in the high-pressure area of ​​the transformer body 2 can be introduced into the pressure relief main pipe 11 through the pressure relief branch 13, and then directly introduced into the pressure relief box 6 through the connecting pipe 16, thereby completing the automatic pressure relief of the high-pressure area;

[0086] When the air in the pressure relief box 6 increases due to pressure relief, the pressure relief plate 17 will be squeezed 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, thereby driving the lifting plate 19 to move downward. When the lifting plate 19 moves downward, it will squeeze the synthetic ester oil below it and automatically press it out.

[0087] When the synthetic ester oil in the pressure relief box 6 is squeezed out, it will flow into the liquid guide tube 12, thereby pushing the piston rack 14 in the liquid guide tube 12 to move. When the piston rack 14 moves, it will drive the displacement plate 20 to move synchronously, even if it slides on the support top plate 7;

[0088] When the displacement plate 20 moves, it drives the transmission gear rod 24 to move. When the transmission gear rod 24 moves, it drives multiple transmission gears 23 and multiple driven rollers 21 to rotate. When the multiple driven rollers 21 rotate, they drive multiple induced air heat sinks 22 to rotate, so that the deflection angle of the induced air heat sink 22 can be adjusted to make it more susceptible to wind, thereby improving its heat dissipation efficiency.

[0089] When the induced draft heat sink 22 rotates, it pushes the linkage plate 25 to move. When the linkage plate 25 moves, it drives the folding baffle 8 on it to move and compress, thereby reducing the blocking range of the folding baffle 8 on 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 housing 1, and improving the heat dissipation efficiency of the heat dissipation fins 3 and the induced draft heat sink 22, so as to reduce the temperature of the explosion-proof housing 1 and the transformer body 2 by heat dissipation and cooling, and reduce the explosion risk of the transformer body 2.

[0090] When the synthetic ester oil in the pressure relief box 6 is squeezed out, it flows into the heat dissipation tube 9 and accumulates on the side of the push plate 30 inside the heat dissipation tube 9. As the synthetic ester oil gradually increases, the push plate 30 gradually moves under the push of the synthetic ester oil, driving the trigger rod 31 until it touches the trigger button 32. At this time, the trigger button 32 is triggered, thereby controlling the servo motor 34 to start.

[0091] When the servo motor 34 is started, it drives the driving roller 35 to rotate. When the driving roller 35 rotates, it drives the multiple impellers 29 on it to rotate. When the impellers 29 rotate, they draw the cold air outside the explosion-proof housing 1 into the heat dissipation pipe 9 through the induced draft dust box 4. After forming a wind force airflow in the heat dissipation pipe 9, it is introduced into the air guide box 10 through the upper air pipe 28. When the air in the air guide box 10 increases, it is blown vertically downward through the multiple blowing pipes 26.

[0092] The wind flow in the blowing pipe 26 will blow air in a targeted manner on the two heat dissipation fins 3 on both sides thereof, thereby quickly improving the heat dissipation efficiency of the heat dissipation fins 3. At the same time, the wind flow generated by the blowing pipe 26 will circulate in the circulating air trough in the explosion-proof casing 1, and can further accelerate the heat dissipation effect of the explosion-proof casing 1 and the transformer main body 2 during the flow, thereby quickly reducing the temperature of the transformer main body 2, realizing the internal pressure 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 further provides a method for using a high-safety explosion-proof transformer for a station, which is used for the above-mentioned high-safety explosion-proof transformer for a station, comprising the following steps:

[0094] S1, through multiple pressure monitoring sensors 15, the transformer body 2 is targeted for pressure monitoring, and the internal pressure of the transformer body 2 is monitored in real time to see if it exceeds the standard;

[0095] S2. When the monitored pressure is high, the pressure relief component is used to release air and relieve pressure in the area;

[0096] S3, while releasing pressure, the pressure relief component adjusts the expansion state of the multiple folding baffles 8 in the regulating component according to the pressure, thereby improving the natural heat dissipation efficiency inside the transformer body 2;

[0097] S4, pressure relief. At the same time, the heat dissipation component is driven to start by the pressure relief component according to the pressure size, and the heat dissipation fins 3 are blown and cooled in a targeted manner through multiple blowing pipes 26, thereby promoting the pressure relief of the transformer body 2 by cooling, and improving the explosion-proof safety of the transformer body 2.

[0098] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A high-safety explosion-proof transformer for station use, comprising a transformer 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 body (2), characterized in that: Also includes: A pressure relief unit comprises a plurality of pressure relief boxes (6) arranged in an explosion-proof housing (1), each pressure relief box (6) being provided with a pressure relief assembly, and a pressure monitoring sensor (15) for monitoring the internal pressure of a transformer body (2) being provided in the pressure relief assembly, and achieving targeted explosion-proof pressure relief in various areas inside the transformer body (2) through the pressure relief assembly, each of the pressure relief boxes (6) being provided with an adjustment assembly and a heat dissipation assembly, and both the adjustment assembly and the heat dissipation assembly being activated when triggered by the corresponding pressure relief assembly; The adjustment assembly includes a support top plate (7) fixedly mounted in the explosion-proof housing (1), and a displacement plate (20) is slidably mounted on the support top plate (7), a driven mechanism is mounted between the displacement plate (20) and the pressure relief box (6), a plurality of driven rollers (21) are rotatably mounted on the support top plate (7), a transmission gear rod (24) is fixedly mounted on the displacement plate (20), a transmission gear (23) is fixedly mounted on each of the driven rollers (21), and the plurality of transmission gears (23) are meshed with the transmission gear rod (24), and a biasing mechanism is commonly mounted between the plurality of driven rollers (21) and the explosion-proof housing (1); The deflection mechanism comprises a plurality of heat dissipation openings (5) provided 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-inducing heat dissipation fin (22) is fixedly installed on each driven roller (21); and a linkage plate (25) that cooperates with the air-inducing heat dissipation fin (22) is fixedly installed on each folding baffle (8); A plurality of folding baffles (8) are provided in the adjustment component, and the unfolded state of the folding baffles (8) is adjusted by the adjustment component to improve the pressure relief efficiency of the transformer body (2). A plurality of blowing pipes (26) are provided in the heat dissipation component, and wind flow is generated by the heat dissipation component and blown to the plurality of heat dissipation fins (3) through the plurality of blowing pipes (26), thereby improving the heat dissipation effect of the heat dissipation fins (3).

2. A high-safety explosion-proof transformer for station use according to claim 1, characterized in that: The pressure relief assembly comprises 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 each pressure relief branch pipe (13) is provided with a pressure monitoring sensor (15) for monitoring the internal pressure of the transformer body (2), and a buffer mechanism is provided in the pressure relief box (6).

3. A high-safety explosion-proof transformer for station use according to claim 2, characterized in that: The buffer mechanism comprises a pressure relief plate (17) and a lifting plate (19) which are slidably mounted in the pressure relief box (6); two support springs (18) are fixedly mounted between the pressure relief plate (17) and the lifting plate (19); an air inlet end of the connecting pipe (16) is located above the pressure relief plate (17); a control valve is provided in each of the pressure relief branch pipes (13); and a portion of the pressure relief box (6) located below the lifting plate (19) is filled with synthetic ester oil.

4. A high-safety explosion-proof transformer for station use according to claim 3, characterized in that: The driven mechanism comprises a liquid guide tube (12) fixedly connected to the pressure relief box (6) for conducting synthetic ester oil, a piston rack (14) being slidably mounted in the liquid guide tube (12), and an upper end of the piston rack (14) being fixedly mounted on a displacement plate (20).

5. A high-safety explosion-proof transformer for station use according to claim 4, characterized in that: The heat dissipation assembly comprises a heat dissipation pipe (9) arranged in an explosion-proof housing (1), and a liquid distribution pipe (27) for conducting synthetic ester oil is fixedly connected between the heat dissipation pipe (9) and the pressure relief box (6). A trigger mechanism and an air guide mechanism are arranged in the heat dissipation pipe (9), wherein the trigger mechanism is used to drive the air guide mechanism to start and generate wind power and airflow to circulate and dissipate heat to the transformer body (2) in the explosion-proof housing (1).

6. A high-safety explosion-proof transformer for station use according to claim 5, characterized in that: The trigger mechanism comprises a fixed disk (33) fixedly mounted in the heat dissipation tube (9), a servo motor (34) fixedly mounted on the fixed disk (33), a push disk (30) slidably mounted in the heat dissipation tube (9), a trigger rod (31) fixedly mounted on the push disk (30), and a trigger button (32) matched with the trigger rod (31) fixedly mounted on the fixed disk (33), and the on / off state of the servo motor (34) is controlled by the trigger button (32).

7. A high-safety explosion-proof transformer for station use according to claim 6, characterized in that: The wind guide mechanism includes a driving roller (35) fixedly mounted on the driving end of a servo motor (34), and a plurality of wind impellers (29) for generating wind power and airflow are fixedly mounted on the driving roller (35), and a partition plate (36) for blocking is fixedly mounted in the heat dissipation pipe (9); An air filter box (4) for replenishing air is fixedly connected between the heat dissipation pipe (9) and the explosion-proof housing (1); an air guide box (10) is fixedly installed in the explosion-proof housing (1); and an upper air duct (28) for upper air is fixedly connected between the air guide box (10) and the heat dissipation pipe (9); a plurality of blowing pipes (26) for blowing air for heat dissipation are fixedly connected to the lower part of the air guide box (10), and each blowing pipe (26) is located between two adjacent heat dissipation fins (3).

8. A method for using a high-safety explosion-proof transformer for a station, used for the high-safety explosion-proof transformer for a station as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1, performing targeted pressure monitoring on the interior of the transformer body (2) through a plurality of pressure monitoring sensors (15), and monitoring in real time whether the pressure inside the transformer body (2) exceeds a standard; S2. When the monitored pressure is high, the pressure relief component is used to release air and relieve pressure in the area; S3, while releasing pressure, adjusting the unfolded state of multiple folding baffles (8) in the pressure relief assembly according to the pressure level, thereby improving the natural heat dissipation efficiency inside the transformer body (2); S4, pressure relief. Simultaneously, the heat dissipation component is driven to start up through the pressure relief component according to the pressure level, and targeted air blowing is performed on the heat dissipation fins (3) through a plurality of air blowing pipes (26), thereby promoting the pressure relief of the transformer body (2) by cooling, thereby improving the explosion-proof safety of the transformer body (2).

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