A fireproof and explosion-proof safety transformer

Abstract

The present invention discloses a fireproof and explosion-proof safety transformer, which relates to the technical field of transformers. An outer row fixed pipe is connected through one side of the top of an embedded fixed box, a downward pressure spring is fixed on the top of the inner side of the outer row fixed pipe, an I-shaped clamping frame is fixed on the bottom end of the downward pressure spring, a clamping sealing ring is fixed at the position of the inner side of the outer row fixed pipe corresponding to the I-shaped clamping frame, a plurality of exhaust fixing holes are equidistantly provided on the outer end of the outer row fixed pipe, and an isolation double-layer sleeve is symmetrically welded on the top of the inner side of the embedded fixed box, which effectively solves the problem in the prior art that transformer oil overflows and pollutes the environment due to the external discharge of hot steam, recycles resources, reduces resource waste, and replenishes transformer oil in real time to ensure the stability of internal protection. At the same time, internal fire extinguishing components are used to directly extinguish the internal fire, avoiding high-voltage deflagration and explosion due to internal fire.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, in particular to a fireproof and explosion-proof safety transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core. Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc.

[0003] The patent with application number 201921299913.2 mentions "a safe and fireproof transformer". The patent realizes automatic fire extinguishing by fixing the annular frame and fire extinguishing ball to the shell, minimizing the damage and buying time for further rescue.

[0004] However, when the transformer is used now, the transformer oil inside the transformer will produce oil vapor when heated. When the internal pressure is too high, the pressure will be relieved. At this time, the oil vapor is discharged, and the amount of transformer oil is reduced. At the same time, the oil consumption will lead to a decrease in the heat absorption and heat exchange effect, affecting the stability of the transformer operation. In addition, there is no fire extinguishing device inside the transformer, which makes it easy for the internal coil to explode when it catches fire, resulting in large-scale damage to electrical equipment near the transformer. Summary of the Invention

[0005] The present invention provides a fireproof and explosion-proof safety transformer, which can effectively solve the problem raised in the above background technology that when the current transformer is used, the transformer oil inside the transformer will generate oil vapor when heated, and the pressure will be relieved when the internal pressure is too high. At this time, the oil vapor is discharged, and the amount of transformer oil is reduced. At the same time, the consumption of oil will lead to a decrease in the heat absorption and heat exchange effect, affecting the stability of the transformer operation. In addition, there is no fire extinguishing device inside the transformer, which makes it easy for the internal coil to deflagrate and explode when it catches fire, resulting in large-scale damage to electrical equipment near the transformer.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a fireproof and explosion-proof safety transformer, comprising an embedded fixed box, a transformer coil is fixed inside the embedded fixed box, a plurality of insulators are evenly installed on the top of the embedded fixed box, and a double-protection component is provided at the side end of the embedded fixed box;

[0007] The double-protection assembly includes an external fixed pipe;

[0008] An outer row fixing pipe is connected through one side of the top of the embedded fixing box, a downward pressure spring is fixed to the top of the inner side of the outer row fixing pipe, and an I-shaped clamping frame is fixed to the bottom end of the downward pressure spring;

[0009] A snap-fit ​​sealing ring is fixed on the inner side of the outer row fixed tube, and an exhaust fixing hole is opened on the outer end of the outer row fixed tube;

[0010] An isolation double-layer sleeve is welded to the top of the inner side of the embedded fixed box, a compression spring is fixed to the middle of the inner side of the isolation double-layer sleeve, a compression sealing plate is fixed to the bottom end of the compression spring, and a T-shaped clamping rod is fixed to the top end of the compression sealing plate;

[0011] The top of the embedded fixed box is connected to an outer row limiting cylinder, the top of the outer row limiting cylinder is connected to an injection fixed tube, one end of the injection fixed tube is connected to a storage fixed box, a porous separation plate is fixed on the inside of the isolation double-layer sleeve, and an outer row positioning hole is opened at the side end of the isolation double-layer sleeve.

[0012] According to the above technical solution, the bottom end of the embedded fixed box is fixedly connected to the outer protective fixed box by fixing bolts, and the bottom ends of the embedded fixed box and the outer protective fixed box are both connected through an external exhaust treatment pipe, and the bottom end of the external exhaust treatment pipe is sleeved with a combined fixed pipe, and the bottom end of the combined fixed pipe is connected through a centralized vacuum barrel;

[0013] Fire extinguishing buckets are fixed on both sides of the top of the outer protection fixed box, and a spray pipe rack is connected between the two fire extinguishing buckets.

[0014] According to the above technical solution, an isolation baffle is fixedly connected to the top of the embedded fixed box at the position corresponding to the external fixed pipe, one end of the isolation baffle is connected through a reflux centralizing pipe, and one end of the reflux centralizing pipe is connected through a reflux centralizing box;

[0015] A processing spring is fixed to the bottom inner end of the injection pipe rack, an alignment and pressing frame is fixed to the top of the processing spring, a contact switch is fixed to the top of the alignment and pressing frame, and a combined isolation box is fixed to the bottom end of the outer protection fixing box;

[0016] A battery is fixed inside the combined isolation box, and a limiting valve is embedded and installed at one end of the injection fixed pipe and the injection pipe rack.

[0017] According to the above technical solution, the I-type clamping frame is slidably installed on the inner side of the outer fixed pipe, the clamping sealing ring is sleeved and connected with the I-type clamping frame, and the outer fixed pipe is sleeved and placed on the inner side of the isolation spoiler;

[0018] The reflux concentration box is snap-fitted and installed on the top of the inner fixed box and the outer fixed box, the pressed sealing plate is slidably sleeved on the inner side of the isolation double-layer sleeve, and the T-shaped snap-fit ​​rod is sleeved and combined with the outer row limit tube.

[0019] According to the above technical solution, the T-shaped engaging rod slides through the side end of the porous separation plate, and the side end of the centralized vacuum barrel is fixedly connected to the bottom end of the outer protection fixed box.

[0020] According to the above technical solution, the injection pipe rack is placed inside the embedded fixed box, and the alignment pressing frame and the contact switch are both slidably placed inside the injection pipe rack.

[0021] According to the above technical solution, one end of the contact switch is fitted with one end of the injection pipe rack;

[0022] The input ends of the contact switch and the limiting valve are both electrically connected to the output end of the external controller, and the input end of the external controller is electrically connected to the output end of the battery.

[0023] According to the above technical solution, a linkage assembly is provided at the side end of the outer protection fixing box;

[0024] The linkage assembly includes a supporting annular plate;

[0025] A supporting annular plate is fixed to the side end of the outer guard fixed box, a protective support cover is hinged on the top of the supporting annular plate, a plurality of circulating direct blowing pipes are equidistantly connected to the side end of the protective support cover, a circulating fan is embedded in the inner side of the circulating direct blowing pipe, a notch closing plate is slidably connected to the top end of the protective support cover, a clamping support cylinder is symmetrically penetrated and connected to the top end of the clamping support cylinder, an external pressure-stabilizing tube is penetrated and connected to the top end of the external pressure-stabilizing tube, one end of the external pressure-stabilizing tube is penetrated and connected to a condensation reflux box, and a reflux closing tube is penetrated and connected to the side end of the condensation reflux box;

[0026] The outer end of the embedded fixed box is sleeved with a heat dissipation fixed frame, and the inner end of the outer fixed box is equidistantly connected with a plurality of contact exchange plates, and the side ends of the plurality of contact exchange plates are welded with exchange inlet and outlet frames;

[0027] The side end of the embedded fixed box is connected with a circulation pipe rack, and the bottom end of the outer protection fixed box is installed with a circulation pump through a motor seat at a position corresponding to the circulation pipe rack. The side end of the outer protection fixed box is connected with an inlet and outlet pipe rack, and the bottom end of the outer protection fixed box is installed with an inlet and outlet pump through a motor seat at a position corresponding to the inlet and outlet pipe rack.

[0028] The bottom end of the combined isolation box is fixedly connected to a porous support frame.

[0029] According to the above technical solution, the condensation reflux box is fixedly connected to the top of the outer protective fixed box, the side end of the protective support cover is fitted with the side end of the outer protective fixed box, and the reflux closed pipe is placed through the inner side of the outer protective fixed box.

[0030] According to the above technical solution, one end of the circulation pump is fixedly connected to one end of the circulation pipe rack through an adapter, and the inlet and outlet pumps are combined with the inlet and outlet pipe racks through an adapter;

[0031] The input ends of the circulating fan, circulating pump and inlet and outlet pumps are all electrically connected to the output end of the external controller.

[0032] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0033] 1. It is equipped with a double-proof component. The downward pressure spring and air pressure push the I-type clamping frame and the clamping sealing ring to separate. The external fixed pipe and the exhaust fixed hole are used to discharge hot steam. The isolation baffle and the reflux central pipe are used for isolation and recovery. The external extrusion and internal air pressure are coordinated to control the internal pressure stability. The isolation components are used for isolation and interception treatment to avoid the transformer oil from being discharged while the transformer oil is recovered to achieve resource recycling. The compression spring and the internal oil level are used to push the compression sealing plate to move. The T-shaped clamping rod and the external limit cylinder are used to control the storage fixed box and the external positioning hole to inject transformer oil into the transformer box. The internal transformer oil level is controlled to ensure that the coil is always immersed in the transformer oil, achieving steady heat exchange and ensuring stable operation of the transformer.

[0034] The limiting valve controls the external treatment pipe and the combined fixed pipe to discharge the transformer oil into the inner side of the centralized vacuum barrel. The treatment spring drives the alignment pressing frame and the contact switch to separate from the injection pipe rack. The limiting valve then opens the injection pipe rack, allowing the fire extinguishing agent to flow through the fire extinguishing barrel and the injection pipe rack into the box body, extinguishing the fire inside the box and achieving internal fire protection. This prevents the box body from deflagration and explosion caused by internal high temperature due to coil fire, thus ensuring the effectiveness and efficiency of protection.

[0035] By isolating the exhaust components and the recycling components and cooperating with each other to control the internal pressure, the internal transformer oil level is controlled by the pressing components, and the internal fire extinguishing components and the oil drain components control the internal stability. This effectively solves the problem in the existing technology that transformer oil overflows and pollutes the environment due to the discharge of hot steam. At the same time, resources are recycled and utilized to reduce resource waste, and the transformer oil is replenished in real time to ensure the stability of internal protection. At the same time, the internal fire extinguishing components are used to directly extinguish the fire inside to avoid high-voltage deflagration and explosion due to internal fire, thereby ensuring the stable operation of the transformer and protecting nearby electrical equipment and the environment, thereby improving the safety of the transformer.

[0036] 2. A linkage component is provided. The circulating pump and the circulating pipe rack drive the transformer oil inside the embedded fixed box to circulate, balancing the heat at various points inside. The heat is then conducted outwards by the heat dissipation fixed frame. The liquid coolant inside the outer fixed box is driven to circulate through the inlet and outlet pipe rack and the inlet and outlet pump. The liquid coolant is gradually discharged from the inside to the outside by the contact exchange plate, the exchange inlet and outlet rack and the heat dissipation fixed frame. In addition, the two-stage heat cycle is used to further achieve overall heat exchange and balanced processing, increase the heat conduction area, and avoid heat concentration in a single location, which may lead to single-point overheating and fire. The heat exchange efficiency is improved while ensuring stable operation inside and outside the transformer.

[0037] The circulating fan and the circulating direct blowing pipe drive the air flow, and the flowing air is used to directly blow the terminal position to reduce the heat at the connection point and ensure stable operation. The hot steam is discharged by engaging the support tube and the external discharge voltage-stabilizing tube, and air cooling is used. The reflux treatment is carried out in conjunction with the condensation return box and the reflux closing pipe to ensure the stability of the internal pressure. At the same time, the liquid reflux is reused to avoid the occurrence of bursting of the outer protective fixed box due to high pressure, which effectively improves the safety and stability of the transformer operation.

[0038] In summary, through the cooperation of dual-protection components and linkage components, and the use of circulating treatment and recycling and supplementary treatment of cooling components, the cooling effect is guaranteed and the transformer overheating is avoided. Through the cooperation of isolation components, the transformer is prevented from polluting the surrounding environment during operation. At the same time, the use of multi-stage explosion-proof components is used to avoid the internal pressure of the transformer causing deformation and damage to its body. Through the cooperation of multiple components, the fire and explosion prevention effects of the transformer are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0040] In the attached figure:

[0041] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0042] Figure 2 It is a structural schematic diagram of the dual-protection component of the present invention;

[0043] Figure 3 This is a schematic diagram of the installation structure of the storage fixed box of the present invention;

[0044] Figure 4 This is a schematic diagram of the installation structure of the reflux concentrator of the present invention;

[0045] Figure 5 The present invention Figure 4 A magnified schematic diagram of the A structure;

[0046] Figure 6 This is a schematic diagram of the installation structure of the centralized vacuum barrel of the present invention;

[0047] Figure 7 The present invention Figure 6 A magnified schematic diagram of the B structure;

[0048] Figure 8 It is a schematic diagram of the installation structure of the alignment and pressing frame of the present invention;

[0049] Figure 9It is a schematic structural diagram of the linkage assembly of the present invention;

[0050] Numbers in the figure: 1, embedded fixed box; 2, transformer coil; 3, insulator;

[0051] 4. Double protection components; 401. External discharge fixed pipe; 402. Downward pressure spring; 403. I-type clamping frame; 404. Clamping sealing ring; 405. Exhaust fixing hole; 406. Isolation baffle; 407. Reflux central pipe; 408. Reflux central box; 409. Isolation double-layer sleeve; 410. Compression spring; 411. Compression sealing plate; 412. T-type clamping rod; 413. External discharge limit cylinder; 414. Injection fixed pipe; 41 5. Storage fixing box; 416. Multi-porous separation plate; 417. External positioning hole; 418. External protection fixing box; 419. External treatment pipe; 420. Combined fixing pipe; 421. Centralized vacuum tank; 422. Fire extinguisher; 423. Injection pipe rack; 424. Treatment spring; 425. Alignment pressing rack; 426. Contact switch; 427. Combined isolation box; 428. Battery; 429. Fixing bolt; 430. Limiting valve;

[0052] 5. Linkage assembly; 501. Support annular plate; 502. Protective support cover; 503. Circulating direct blowing pipe; 504. Circulating fan; 505. Notch closing plate; 506. Engaging support cylinder; 507. External discharge voltage-stabilizing tube; 508. Condensation reflux box; 509. Reflux closing tube; 510. Heat dissipation fixing frame; 511. Contact exchange plate; 512. Exchange inlet and outlet frame; 513. Circulating pipe rack; 514. Circulating pump; 515. Inlet and outlet pipe rack; 516. Inlet and outlet pump; 517. Porous support frame. DETAILED DESCRIPTION

[0053] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0054] Example: Figure 1-9 As shown, the present invention provides a technical solution, a fireproof and explosion-proof safety transformer, comprising an embedded fixed box 1, a transformer coil 2 is fixed inside the embedded fixed box 1, a plurality of insulators 3 are equidistantly installed on the top of the embedded fixed box 1, and a double-protection component 4 is provided at the side end of the embedded fixed box 1;

[0055] The double-protection assembly 4 includes an external discharge fixed pipe 401, a downward pressure spring 402, an I-shaped clamping frame 403, a clamping sealing ring 404, an exhaust fixing hole 405, an isolation baffle 406, a reflux concentration pipe 407, a reflux concentration box 408, an isolation double-layer sleeve 409, a pressing spring 410, a pressing sealing plate 411, a T-shaped clamping rod 412, an external discharge limiting cylinder 413, an injection fixed pipe 414, a storage fixed box 415, a porous separation plate 416, an external discharge positioning hole 417, an outer protection fixed box 418, an external discharge treatment pipe 419, a combined fixed pipe 420, a centralized vacuum barrel 421, a fire extinguishing barrel 422, an injection pipe frame 423, a treatment spring 424, an alignment pressing frame 425, a contact switch 426, a combined isolation box 427, a battery 428, a fixing bolt 429 and a limiting valve 430;

[0056] An outer row of fixed tubes 401 is connected to one side of the top of the embedded fixed box 1, a downward pressure spring 402 is fixed to the top of the inner side of the outer row of fixed tubes 401, an I-type clamping frame 403 is fixed to the bottom of the downward pressure spring 402, a clamping sealing ring 404 is fixed to the position of the I-type clamping frame 403 on the inner side of the outer row of fixed tubes 401, the I-type clamping frame 403 is slidably installed on the inner side of the outer row of fixed tubes 401, and the clamping sealing ring 404 is sleeved and connected with the I-type clamping frame 403, so that the internal isolation and protection can be carried out steadily, and the operation is convenient. Elastic limiting is used to realize internal pressure relief processing. Several exhaust fixing holes 405 are equidistantly opened at the outer end of the external fixed pipe 401. An isolation baffle 406 is fixedly connected to the top of the embedded fixed box 1 corresponding to the position of the external fixed pipe 401. The external fixed pipe 401 is sleeved and placed on the inside of the isolation baffle 406. The gas discharged by pressure relief can be intercepted to avoid direct discharge of oil and gas to pollute the environment. A reflux collecting pipe 407 is connected to one end of the isolation baffle 406. A reflux collecting pipe 407 is connected to one end of the reflux collecting pipe 407. In the middle box 408, an isolation double-layer sleeve 409 is symmetrically welded on the top of the inner side of the embedded fixed box 1. A compression spring 410 is fixed to the middle of the inner side of the isolation double-layer sleeve 409. A compression sealing plate 411 is fixed to the bottom of the compression spring 410. The compression sealing plate 411 is slidably sleeved on the inner side of the isolation double-layer sleeve 409, so that the sliding sleeve and sealing treatment are steadily carried out to ensure the stability of the sliding alignment and the support alignment. A T-shaped clamping rod 412 is fixed on the top of the compression sealing plate 411. The top of the embedded fixed box 1 is connected to the position of the T-shaped clamping rod 412. An outer row limiting cylinder 413 is connected through it, and an injection fixing pipe 414 is connected to the top of the outer row limiting cylinder 413. One end of the injection fixing pipe 414 is connected to a storage fixing box 415. A porous separation plate 416 is fixed to the inside of the isolation double-layer sleeve 409. A T-shaped clamping rod 412 is sleeved and assembled with the outer row limiting cylinder 413. The T-shaped clamping rod 412 slides through the side end of the porous separation plate 416, so that it can cooperate steadily during the sealing process and alignment sliding. An outer row positioning hole 417 is opened on the side end of the isolation double-layer sleeve 409;

[0057] The bottom end of the embedded fixed box 1 is fixedly connected to the outer protection fixed box 418 by fixing bolts 429, and the reflux concentration box 408 is snap-fitted and installed on the top of the embedded fixed box 1 and the outer protection fixed box 418 to achieve stable support and fixation. The bottom end of the embedded fixed box 1 and the bottom end of the outer protection fixed box 418 are both penetrated by an external exhaust treatment pipe 419, and the bottom end of the external exhaust treatment pipe 419 is sleeved with a combined fixed pipe 420. The bottom end of the combined fixed pipe 420 is penetrated by a centralized vacuum barrel 421, and the side end of the centralized vacuum barrel 421 is fixedly connected to the bottom end of the outer protection fixed box 418 to ensure the stability of the support. Fire extinguishing buckets 422 are fixed on both sides of the top of the outer protection fixed box 418, and an injection pipe rack 423 is penetrated between the two fire extinguishing buckets 422. It is placed inside the embedded fixed box 1 so that it can be operated steadily when the spray is discharged. A processing spring 424 is fixed to the bottom end of the inner side of the injection pipe rack 423, and a positioning pressing frame 425 is fixed to the top of the processing spring 424. A contact switch 426 is fixed to the top of the positioning pressing frame 425. The positioning pressing frame 425 and the contact switch 426 are both slidably placed on the inner side of the injection pipe rack 423. One end of the contact switch 426 is fitted with one end of the injection pipe rack 423 to achieve steady positioning support and ensure the stability of the equipment control linkage. A combined isolation box 427 is fixed to the bottom end of the outer protective fixed box 418, and a battery 428 is fixed inside the combined isolation box 427. A limiting valve 430 is embedded and installed at one end of the injection fixed pipe 414 and the injection pipe rack 423;

[0058] For stable operation of the device, the input ends of the contact switch 426 and the limiting valve 430 are electrically connected to the output end of the external controller, and the input end of the external controller is electrically connected to the output end of the battery 428.

[0059] A linkage assembly 5 is provided at the side end of the outer protection fixed box 418, and the linkage assembly 5 includes a supporting annular plate 501, a protective support cover 502, a circulating direct blowing pipe 503, a circulating fan 504, a notch closing plate 505, a clamping support cylinder 506, an external discharge voltage-stabilizing pipe 507, a condensation reflux box 508, a reflux closing pipe 509, a heat dissipation fixing frame 510, a contact exchange plate 511, an exchange inlet and outlet frame 512, a circulating pipe rack 513, a circulating pump 514, an inlet and outlet pipe rack 515, an inlet and outlet pump 516 and a porous support frame 517;

[0060] The side end of the outer protection fixing box 418 is fixed with a supporting annular plate 501, and the top of the supporting annular plate 501 is hinged with a protective support cover 502. The side end of the protective support cover 502 is fitted with the side end of the outer protection fixing box 418 to ensure the stability of the support positioning and support fixation. The side end of the protective support cover 502 is equidistantly connected with a number of circulating direct blowing pipes 503. The inner side of the circulating direct blowing pipe 503 is embedded with a circulating fan 504. The top of the protective support cover 502 is slidably connected with a slotted closing plate 503. 05. The top of the outer protection fixed box 418 is symmetrically connected with a clamping support cylinder 506, the top of the clamping support cylinder 506 is connected with an external pressure-stabilizing tube 507, one end of the external pressure-stabilizing tube 507 is connected with a condensation reflux box 508, and the side end of the condensation reflux box 508 is connected with a reflux closed tube 509. The condensation reflux box 508 is fixedly clamped on the top of the outer protection fixed box 418, and the reflux closed tube 509 is placed inside the outer protection fixed box 418 to realize reflux treatment;

[0061] The outer end of the embedded fixed box 1 is sleeved with a heat dissipation fixed frame 510, the inner end of the outer protective fixed box 418 is equidistantly penetrated with a number of contact exchange plates 511, and the side ends of the several contact exchange plates 511 are welded with exchange inlet and outlet frames 512. The side end of the embedded fixed box 1 is penetrated with a circulation pipe rack 513, and the bottom end of the outer protective fixed box 418 is connected to the position of the circulation pipe rack 513 through a motor seat. The side end of the outer protective fixed box 418 is penetrated with an inlet and outlet pipe rack 515, and the bottom end of the outer protective fixed box 418 is installed with an inlet and outlet pump 516 through a motor seat. One end of the circulation pump 514 is fixedly connected to one end of the circulation pipe rack 513 through an adapter, and the inlet and outlet pump 516 is combined with the inlet and outlet pipe rack 515 through an adapter to achieve steady circulation linkage. The bottom end of the combined isolation box 427 is fixedly connected to a porous support frame 517;

[0062] For stable operation of the equipment, the input ends of the circulation fan 504 , the circulation pump 514 and the inlet and outlet pump 516 are all electrically connected to the output end of the external controller.

[0063] The working principle and use process of the present invention are as follows: during the operation of the transformer, the battery 428 is used for power supply processing, and the battery 428 is charged through the transformer, the transformer is connected to the input and output cables through the connection port of the insulator 3, and the transformer coil 2 is used for voltage transformation processing. During the voltage transformation process, the transformer oil inside the embedded fixed box 1 will absorb the heat generated by the transformer coil 2. At this time, the circulating pump 514 and the circulating pipe rack 513 drive the internal transformer oil to circulate, thereby balancing the heat at various points inside and avoiding the heat concentration. A single position causes a single point of overheating and fire inside. At the same time, the heat is transferred along the embedded fixed box 1 to the side of the external heat dissipation fixed frame 510, and the liquid coolant inside the outer fixed box 418 absorbs the heat at the position of the heat dissipation fixed frame 510, and transfers the heat to the side of the contact exchange plate 511. The heat is conducted outward through the contact exchange plate 511 and the exchange inlet and outlet frame 512. At this time, the inlet and outlet pipe rack 515 and the inlet and outlet pump 516 are used to drive the liquid coolant inside the outer fixed box 418 to circulate and achieve heat uniformity again. Balanced treatment is performed to ensure the maximum heat dissipation area and the best heat dissipation effect, and to avoid overheating caused by continuous accumulation of heat. The wiring components at the top of the embedded fixed box 1 are protected by the protective support cover 502, the supporting annular plate 501 and the slot closing plate 505. The circulating fan 504 and the circulating direct blowing pipe 503 drive the air flow inside the protective support cover 502, and use the flowing air to directly blow the terminal position to reduce the heat at the wiring, further ensuring the stability of operation. Heat exchange in the outer protective fixed box 418 When the liquid coolant is heated, it generates hot steam. The hot steam flows along the engaging support cylinder 506 and the external pressure-stabilizing tube 507 into the inner side of the condensation return box 508, and is condensed by the condensation return box 508. The condensed liquid coolant flows back to the inner side of the outer protection fixed box 418 along the reflux closed tube 509, ensuring the stability of the internal pressure and avoiding the situation that the outer protection fixed box 418 bursts due to high pressure, thereby effectively improving the safety and stability of the transformer operation. The transformer is installed by the porous support frame 517 to ensure the stability of the bottom support.

[0064] The transformer oil inside the transformer will generate hot steam when heated. When the internal air pressure reaches the limit value, the air pressure will push the I-type clamping frame 403 at the position of the external fixed pipe 401, so that the I-type clamping frame 403 is separated from the clamping sealing ring 404. At this time, the downward pressure spring 402 is compressed, and the hot steam enters the inner side of the isolation baffle 406 along the clamping sealing ring 404, the external fixed pipe 401 and the exhaust fixed hole 405. The hot steam is gradually condensed in the isolation baffle 406 under the influence of external cooling components. The condensed transformer oil will enter the inner side of the return collection box 408 along the return collection pipe 407, realizing the transformer oil recovery and processing, and at the same time stabilizing the internal pressure to avoid low or high pressure situations. At the same time, it isolates the internal and external environments to prevent the external environment from affecting the insulation state inside the transformer. When the internal transformer When the transformer oil drops below the limit value, the compression sealing plate 411 and the T-shaped clamping rod 412 are driven by the compression spring 410 to move downward along the isolation double-layer sleeve 409 to open the external discharge limit cylinder 413. At this time, the limiting valve 430 is opened to inject the fixed pipe 414, and the transformer oil enters the side end of the porous separation plate 416 at the position of the isolation double-layer sleeve 409 along the storage fixed box 415, the injection fixed pipe 414 and the external discharge limit cylinder 413. The oil is separated by the porous separation plate 416 and discharged through the external discharge positioning hole 417 to achieve the filling of the transformer oil in the embedded fixed box 1, avoiding the situation that the transformer coil 2 is overheated and unstable in operation due to insufficient transformer oil resulting in insufficient internal heat dissipation speed. At the same time, the use of automated processing can reduce the number of maintenance times by staff and alleviate the cumbersomeness of operation and maintenance.

[0065] When a coil fire occurs inside the transformer, the limiting valve 430 opens the combined fixed pipe 420 and closes the injection fixed pipe 414. At this time, the transformer oil in the embedded fixed box 1 flows along the external treatment pipe 419 and the combined fixed pipe 420 into the inner side of the centralized vacuum barrel 421. When the liquid level moves downward, the treatment spring 424 drives the positioning pressing frame 425 to move downward along the injection pipe frame 423, so that the contact switch 426 is separated from the injection pipe frame 423. At this time, the limiting valve 430 opens the injection pipe frame 423 located at the position of the fire extinguishing barrel 422. The difluorochloromonobromomethane fire extinguishing agent is used. The fire extinguishing agent flows along the injection pipe frame 423 into the inner side of the embedded fixed box 1, and is sprayed from top to bottom to achieve fire extinguishing treatment, thereby promptly cutting off the fire spreading from the inside to the outside of the transformer, minimizing losses, and achieving self-extinguishing within a short time of the fire, ensuring environmental safety.

[0066] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fireproof and explosion-proof safety transformer, comprising an embedded fixed box (1), characterized in that: A transformer coil (2) is fixed inside the embedded fixing box (1), a plurality of insulators (3) are equidistantly installed on the top of the embedded fixing box (1), and a double-protection component (4) is provided on the side end of the embedded fixing box (1); The double-protection component (4) includes an outer fixed tube (401); An outer row fixed tube (401) is connected through one side of the top of the embedded fixed box (1), a downward pressure spring (402) is fixed to the top of the inner side of the outer row fixed tube (401), and an I-shaped clamping frame (403) is fixed to the bottom end of the downward pressure spring (402); A snap-fit ​​sealing ring (404) is fixed on the inner side of the outer fixed tube (401), and an exhaust fixing hole (405) is provided at the outer end of the outer fixed tube (401); An isolation double-layer sleeve (409) is welded to the top inner side of the embedded fixed box (1), a compression spring (410) is fixed to the middle inner side of the isolation double-layer sleeve (409), a compression sealing plate (411) is fixed to the bottom end of the compression spring (410), and a T-shaped locking rod (412) is fixed to the top end of the compression sealing plate (411); The top of the embedded fixed box (1) is connected to an outer row limiting cylinder (413), the top of the outer row limiting cylinder (413) is connected to an injection fixed tube (414), one end of the injection fixed tube (414) is connected to a storage fixed box (415), a porous separation plate (416) is fixed on the inner side of the isolation double-layer sleeve (409), and an outer row positioning hole (417) is opened at the side end of the isolation double-layer sleeve (409).

2. A fireproof and explosion-proof safety transformer according to claim 1, characterized in that: The bottom end of the embedded fixing box (1) is fixedly connected to the outer protection fixing box (418) via a fixing bolt (429); the bottom ends of the embedded fixing box (1) and the outer protection fixing box (418) are both penetrated and connected to an external treatment pipe (419); the bottom end of the external treatment pipe (419) is sleeved with a combined fixing pipe (420); the bottom end of the combined fixing pipe (420) is penetrated and connected to a centralized vacuum barrel (421); Fire extinguishing buckets (422) are fixed on both sides of the top of the outer protection fixed box (418), and an injection pipe rack (423) is connected through the two fire extinguishing buckets (422).

3. A fireproof and explosion-proof safety transformer according to claim 2, characterized in that: An isolation baffle (406) is fixedly connected to the top of the embedded fixed box (1) at a position corresponding to the external fixed pipe (401), one end of the isolation baffle (406) is connected through a reflux concentration pipe (407), and one end of the reflux concentration pipe (407) is connected through a reflux concentration box (408); A processing spring (424) is fixed to the bottom inner end of the injection pipe rack (423), a positioning pressing frame (425) is fixed to the top end of the processing spring (424), a contact switch (426) is fixed to the top end of the positioning pressing frame (425), and a combined isolation box (427) is fixed to the bottom end of the outer protection fixing box (418); A battery (428) is fixed inside the combined isolation box (427), and a limiting valve (430) is embedded and installed at one end of the injection fixed pipe (414) and the injection pipe rack (423).

4. The fireproof and explosion-proof safety transformer according to claim 3, characterized in that: The I-shaped snap-fit ​​frame (403) is slidably mounted on the inner side of the outer fixed tube (401), the snap-fit ​​sealing ring (404) is sleeved and connected to the I-shaped snap-fit ​​frame (403), and the outer fixed tube (401) is sleeved and placed on the inner side of the isolation spoiler (406); The reflux concentration box (408) is snap-fitted and installed on the top of the embedded fixed box (1) and the outer protective fixed box (418), the pressed sealing plate (411) is slidably sleeved on the inner side of the isolation double-layer sleeve (409), and the T-shaped snap-fit ​​rod (412) is sleeved and assembled with the outer row limit cylinder (413).

5. The fireproof and explosion-proof safety transformer according to claim 2, characterized in that: The T-shaped engaging rod (412) slides through the side end of the porous separation plate (416), and the side end of the centralized vacuum barrel (421) is fixedly connected to the bottom end of the outer protection fixing box (418).

6. The fireproof and explosion-proof safety transformer according to claim 3, characterized in that: The injection pipe rack (423) is placed inside the embedded fixed box (1), and the alignment pressing rack (425) and the contact switch (426) are both slidably placed inside the injection pipe rack (423).

7. The fireproof and explosion-proof safety transformer according to claim 3, characterized in that: One end of the contact switch (426) is fitted to one end of the injection pipe rack (423); The input ends of the contact switch (426) and the limiting valve (430) are both electrically connected to the output end of the external controller, and the input end of the external controller is electrically connected to the output end of the battery (428).

8. The fireproof and explosion-proof safety transformer according to claim 7, characterized in that: A linkage assembly (5) is provided at the side end of the outer protection fixing box (418); The linkage assembly (5) comprises a supporting annular plate (501); A supporting annular plate (501) is fixed to the side end of the outer protective fixed box (418), a protective supporting cover (502) is hinged on the top end of the supporting annular plate (501), a plurality of circulating direct blowing pipes (503) are equidistantly connected to the side end of the protective supporting cover (502), a circulating fan (504) is embedded and installed inside the circulating direct blowing pipe (503), a slotted closing plate (505) is slidably connected to the top end of the protective supporting cover (502), a clamping support tube (506) is symmetrically connected to the top end of the outer protective fixed box (418), an external pressure-stabilizing tube (507) is connected to the top end of the clamping support tube (506), one end of the external pressure-stabilizing tube (507) is connected to the condensation reflux box (508), and a reflux closing tube (509) is connected to the side end of the condensation reflux box (508); The outer end of the embedded fixing box (1) is sleeved with a heat dissipation fixing frame (510), the inner end of the outer protection fixing box (418) is equidistantly penetrated and connected with a plurality of contact exchange sheets (511), and the side ends of the plurality of contact exchange sheets (511) are welded with exchange inlet and outlet frames (512); The side end of the embedded fixed box (1) is connected through a circulating pipe rack (513), the bottom end of the outer guard fixed box (418) is connected through a circulating pump (514) at a position corresponding to the circulating pipe rack (513) through a motor base, the side end of the outer guard fixed box (418) is connected through an inlet and outlet pipe rack (515), and the bottom end of the outer guard fixed box (418) is connected through a motor base at a position corresponding to the inlet and outlet pipe rack (515). The bottom end of the combined isolation box (427) is fixedly connected to a porous support frame (517).

9. The fireproof and explosion-proof safety transformer according to claim 8, characterized in that: The condensation reflux box (508) is fixedly connected to the top of the outer protective fixed box (418), the side end of the protective support cover (502) is fitted with the side end of the outer protective fixed box (418), and the reflux closed pipe (509) is placed through the inner side of the outer protective fixed box (418).

10. The fireproof and explosion-proof safety transformer according to claim 8, characterized in that: One end of the circulation pump (514) is fixedly connected to one end of the circulation pipe rack (513) via an adapter, and the inlet and outlet pump (516) is combined with the inlet and outlet pipe rack (515) via an adapter; The input ends of the circulation fan (504), the circulation pump (514) and the inlet and outlet pump (516) are all electrically connected to the output end of the external controller.

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