70 results about "Explosion protection" patented technology

The invention relates to the technical field of explosion prevention, and discloses an explosion splash protection structure, which comprises a fixed frame, a first fixed part and a second fixed part, and is characterized in that the fixed frame comprises a top frame, at least three support columns for supporting the top frame, and the first fixed part and the second fixed part are used for supporting the top frame; the first fixing piece and the second fixing piece are fixedly connected to the top frame and / or the supporting columns. And the protective net bodies are arranged between every two adjacent supporting columns, and the protective net bodies are connected with the fixing frame through first fixing pieces and second fixing pieces correspondingly. The protection structure provided by the invention can realize certain deflection and buffering on explosion splashes, so that a better interception effect on the explosion splashes is achieved.

The utility model discloses an experimental device for anti-explosion protection of an arch dam, and belongs to the field of simulation explosion tests. The experimental device comprises a fixing mechanism, an explosive module, a displacement sensor module and an acceleration sensor module, wherein the fixing mechanism is used for supporting a high polymer plate; the explosive module is arranged above the high polymer plate and is used for carrying out an anti-explosion test on the high polymer plate; the displacement sensor module and the acceleration sensor module are fixedly mounted on the high polymer plate; the shock wave sensor modules are symmetrically arranged on the two sides of the high polymer plate. According to the experimental device, shock wave sensor modules are installed on the upper side and the lower side of a high polymer plate, an explosive module is installed above the high polymer plate, the explosive module is detonated through an exploder, shock waves on the explosion facing face and the explosion backing face of the high polymer plate are detected through the shock wave sensor modules on the two sides, and displacement data are tested through a displacement sensor module. Acceleration data are tested through the acceleration sensor module, so that comprehensive anti-explosion analysis is carried out on the high polymer plate, and the method is more comprehensive and fine.

1. Name of the product in this design: Explosion-proof ball. 2. Application of this design: This design is for explosion protection. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses a kind of anti-explosion protection devices when gas cylinder is inflated, belong to anti-explosion safety technical field, including explosion-proof cabinet and the cabinet door being rotationally arranged at the opening of the explosion-proof cabinet, the side of the cabinet door towards cabinet is provided with explosion-proof mechanism, the explosion-proof mechanism includes: explosion-proof bucket, the explosion-proof bucket is detachably fixed on the cabinet door;The anti-explosion protection device when the gas cylinder is inflated is directly installed on the cabinet door that can be rotated outward, and the bottom plate driven by cylinder and the clamping limiting structure composed of C-shaped clamping rod are arranged at the bottom of explosion-proof bucket, realize the coherent operation of "open door just put bottle, close door just anti-explosion, one key just jacking ": when cabinet door is opened, explosion-proof bucket is stretched out cabinet body, and operator can put gas cylinder vertically into without exploring into narrow space, whole process does not need manual lifting or secondary handling, significantly reduce labor intensity, simultaneously avoid the explosion risk caused by gas cylinder dumping or impact during inflation process.

The invention relates to the technical field of anti-explosion controllers, in particular to a display device with an anti-impact anti-explosion protection function, which comprises an anti-explosion rear shell and an anti-explosion panel, a sealed anti-explosion cavity is formed between the anti-explosion rear shell and the anti-explosion panel, a liquid crystal screen is arranged on the anti-explosion panel, the liquid crystal screen is connected with a touch screen and window glass, and the anti-explosion panel is connected with the touch screen and the window glass. A glass body of the window glass is explosion-proof glass, due to the fact that the window glass is thick and heavy, a large gap needs to be reserved in the installation process so that it can be guaranteed that the position of the window glass can be adjusted, meanwhile, a large glue solution flowing gap can be formed, a thick buffer layer can be formed after glue injection is completed, 6101 type epoxy resin glue is selected as the glue solution, and the glass body is not damaged. The window glass has low initial viscosity and high aging resistance after curing, and in the mounting process, the gap between the window glass and the window glass mounting groove is filled with the supporting framework, so that the position of the window glass is controlled.

A limiting circuit, particularly for a power supply, includes a first reverse-polarized Zener diode connected and configured to limit a voltage between two output terminals depending on a first breakdown voltage, a second reverse-polarized Zener connected and configured to limit a voltage between two output terminals depending on a second breakdown voltage, a semiconductor switch coupled in series with the second Zener diode to open or close depending on a switching signal, a first shunt resistor coupled in a load path and with the first and second Zener diodes to carry the load current and the currents flowing through the first and second Zener diodes, and a comparating device configured to generate the switching signal depending on a voltage drop over the first shunt resistor.

The utility model relates to the technical field of smelting furnaces, and discloses a smelting furnace with an explosion-proof device, which comprises a smelting furnace body, a sliding door is arranged on the front side of the smelting furnace body, an observation window is arranged on the outer surface of the sliding door, and a pressure relief mechanism is arranged on the side wall of the smelting furnace body. According to the smelting furnace with the explosion-proof device, a plurality of groups of volute spiral springs in mirror symmetry and a movable sleeve are in linkage design, when the pressure in the furnace is abnormal, generated high-temperature and high-pressure airflow pushes a semicircular baffle to rotate, pressure relief work is gradually completed in a multi-stage pipeline, and cooling is achieved in a cooling box in cooperation with a U-shaped pipe; and the structure has the characteristics of multi-stage buffering and quick response, so that the detonation risk caused by an instantaneous pressure peak value can be avoided, the pressure balance in the furnace can be maintained through directional pressure relief, and the safety redundancy in the smelting process is remarkably improved.

The invention discloses a flexible portable explosion protection device capable of being rapidly inflated, folded and unfolded, and relates to the field of explosion impact protection. The device comprises a protection structure, a bracelet, an unlocking button and a gas generator, the protection structure is divided into a folded state and an unfolded state, the protection structure is in a cuboid or cylindrical shape in the folded state and covers the shoulders and the chest after being unfolded, and the gas generator releases gas to drive the protection structure to be rapidly unfolded by pressing the unlocking button; the protective structure is made of a fiber reinforced flexible resin composite material plate, and a high-storage-ratio design is realized by combining a Sanpu paper folding technology. According to the invention, the survivability of a protected object under the attack of unmanned aerial vehicle bombs or short-distance grenades and grenade fragments can be remarkably improved, and the device has the advantages of light weight, quick response, comprehensive protection and efficient storage.

1. Name of the product in this design: Tracked Robot. 2. Application of this design: Robots used in fire fighting, explosion protection, inspection, transportation and other operations. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention relates to the technical field of explosion protection, and discloses an anti-explosion protection device which comprises a vibration reduction partition and a buffer mechanism. The vibration reduction partition comprises a vibration reduction frame and a vibration reduction assembly, a vibration reduction cavity is formed in the vibration reduction frame, the vibration reduction assembly is arranged in the vibration reduction cavity, the vibration reduction assembly comprises elastic pieces and a mass block, the elastic pieces are supported between the vibration reduction frame and the mass block, and the elastic pieces are supported on the two opposite sides of the mass block in the anti-explosion direction of the vibration reduction frame. A deformation gap for deformation of the vibration reduction frame is reserved between the mass block and the vibration reduction frame. The buffering mechanism comprises a mounting assembly, energy absorption connecting pieces and buffering assemblies, the mounting assembly comprises a mounting frame and a connecting frame, one end of each buffering assembly is hinged to the mounting frame, the other end of each buffering assembly is hinged to the connecting frame, each buffering assembly is connected with the corresponding energy absorption connecting piece, and the buffering assemblies are used for being folded under the condition that the damping partition is impacted. And the energy absorption connecting piece is driven to generate elastic deformation.

The utility model discloses an easily assembled anti-explosion cable reel, the anti-explosion cable reel carries out modular design to internal anti-explosion protection electrical component, integrates protection switch in an independent anti-explosion inner bag assembly, can carry out preassembly and test before loading into cable reel body, only needs to put the preassembled whole anti-explosion inner bag assembly from the installation mouth into the accommodation cavity, then through the inner bag flange, one -time fixed to the push hand frame and cable reel body, can greatly reduce the part quantity and complexity of on -line assembly, reduces assembly difficulty and work hour, is favorable to scale production, and moreover seals the component that the electric spark is most likely to produce in the anti -explosion inner bag cavity formed by anti -explosion inner bag assembly completely, makes protection switch action executing mechanism and external environment isolated, significantly promotes the safety level in the flammable and explosive environment, can control the on -off electricity of whole cable reel safely through handle switch outside, satisfies anti -explosion requirement, and also satisfies the operation convenience requirement.

Outdoor unit (1) for a heat displacement system, comprising a housing and at least two housing sections separated from one another, wherein a ventilation duct, a fan (5) and an air-flowable heat exchanger are arranged in a first housing section (2), and wherein the ventilation duct has a non-closable inlet area and a non-closable outlet area for outside air, and wherein a refrigerant compressor and an expansion valve as well as connections for fluid lines for at least one heat sink and at least one heat source are arranged in a second housing section (3), and wherein a separating device is provided between the first and the second housing section, which separates the two gas spaces of the first and the second housing section and optionally further housing sections from one another, the separating device having a non-closable connecting opening (6) in the lower area,which hydraulically connects the first housing section (2) with the second housing section (3), wherein the fan (5) is designed and equipped to run continuously without stopping, and has its own uninterruptible power supply and explosion protection equipment, and the non-closable connecting opening (6) in the separating device is hydraulically connected to the suction side of the fan (5), and the second housing section (3) has an air inlet opening for outside air.

This invention discloses a method and system for configuring the cooling capacity of a battery compartment air conditioning system based on thermal runaway simulation, specifically relating to the field of battery compartment thermal management safety technology. It addresses the problem that existing air conditioning cooling capacity configuration methods only consider a single heat load while neglecting the coordination of multiple safety objectives. By establishing a battery thermal runaway simulation model to obtain distribution data of heat load, combustible gas concentration, and cabin pressure, multi-objective conflict analysis is used to identify logical conflicts between cooling, explosion protection, and smoke extraction objectives. The impact of these conflicts on system performance is assessed, and the interference relationship between the air conditioning and smoke extraction systems is quantified. Finally, the air conditioning cooling capacity configuration value that coordinates multiple safety objectives is determined. This achieves coordinated operation of the air conditioning system with the gas control and smoke extraction systems, effectively improving the overall safety protection capability of the battery compartment.

The inert gas explosion-proof protection system for the ultra-large oil tanker is applied to the field of ships, dynamic adjustment of the water seal depth is achieved through a segmentation barrel and a hydraulic cylinder, in the gas injection sealing stage, the segmentation barrel and a gas injection pipe are matched to lift up seawater on the upper portion of a tower body, the seawater below the segmentation barrel is made to conduct water seal on the gas injection pipe, and the water seal effect is achieved. Therefore, the water seal depth of the gas injection pipe is reduced, the back pressure which needs to be overcome when the air blower conveys inert gas is reduced, the operation power of the air blower is reduced, the purposes of saving energy and reducing consumption are achieved, and during static sealing, the water seal effect is further improved by increasing the water seal depth. Besides, through a safety pipe and a normally-open solenoid valve on the hydraulic cylinder, under the condition of sudden power failure, the self weight of the segmentation barrel and the weight of seawater in the segmentation barrel are utilized, so that the segmentation barrel moves downwards to return to the initial position and automatically returns to the water seal depth required by static sealing, and the safety and the water seal effect of the water seal tower after power failure are improved.

Battery characterized in that it comprises: a housing in which a receiving chamber is formed, wherein an explosion protection valve is provided on a side surface of the housing, and the explosion protection valve is configured to be opened at a preset pressure value; an electrode arrangement that is provided in the recording chamber; a support element provided between the side surface of the housing on which the explosion protection valve is located and the electrode assembly, wherein the support element comprises a support body having an annular shape and a vent channel enclosed and formed by the support body, wherein the vent channel is configured to cover the explosion protection valve, a plurality of projecting sections extending towards the vent channel are provided on two side sections of the support body along a width direction of the support body, and the plurality of projecting sections are arranged at intervals on the same side section along a length direction of the support element.

The invention discloses a transformer bushing explosion-proof method and system. The anti-explosion method for the transformer bushing comprises the following steps: acquiring data of internal oil pressure, hydrogen dissolved quantity and discharge energy of the transformer bushing; data of internal oil pressure, hydrogen dissolved amount and discharge energy of the transformer bushing are compared with corresponding preset thresholds; and when at least two data of the internal oil pressure, the hydrogen dissolved amount and the discharge energy are greater than or equal to the corresponding preset threshold values, controlling a circuit breaker corresponding to the transformer bushing to be disconnected so as to stop supplying the fault arc energy to the transformer bushing. According to the anti-explosion method and system for the transformer bushing, anti-explosion monitoring on the transformer bushing is realized.

The invention discloses a full-automatic ultralow-temperature anti-explosion nitrogen spraying device and system, and relates to the technical field of industrial cooling anti-explosion equipment.The full-automatic ultralow-temperature anti-explosion nitrogen spraying device comprises a nitrogen extraction module, a multi-stage cooling module, a spraying execution module, an intelligent control module and an anti-explosion protection module; and the PSA molecular sieve nitrogen making unit is connected with the air filtering pretreatment device through a pipeline. According to the full-automatic ultralow-temperature anti-explosion nitrogen spraying device and system, nitrogen is prepared on site through PSA molecular sieve nitrogen preparation, liquid nitrogen does not need to be stored, continuous operation is met, and cost and consumption are reduced; multi-stage cooling is matched with the adjustable spraying head, so that the cooling range is wide, and the accuracy is high; the risk of frostbite of personnel is eradicated through intelligent remote control, and safety and reliability are improved through an anti-explosion protection and alarm unit; the integrated design simplifies the process, and the emergency cut-off module and the multi-nozzle layout adapt to various industrial cooling and explosion-proof scenes and are safe and efficient.

The invention discloses an underground automatic explosion-proof device dismounting touch locking method and a safety mechanism, and relates to the field of coal mine underground explosion-proof safety. The safety mechanism comprises a protective shell, a protective shell safety pin, a trigger device safety pin, a dowel bar and a shaft sleeve, the dowel bar is slidably arranged in the shaft sleeve, and the shaft sleeve is in threaded connection in the protective shell. The dowel bar, the shaft sleeve and the protective shell are provided with a first limiting hole, a second limiting hole and a third limiting hole which are coaxial, the second limiting hole is provided with an internal thread Mb, the external thread mb of the safety pin is matched with the internal thread Mb, the front ends of the two safety pins are mutually locked through connecting threads Mc / mc, one pin is screwed in to push the other pin to be screwed out, and it is ensured that one pin is always locked. The dowel bar is locked by a safety pin of the trigger device during transportation, the protective shell is locked by a safety pin of the protective shell during installation, and the trigger device needs to be locked firstly during disassembly. The safety mechanism solves the problems that a traditional safety mechanism is prone to loosening and false triggering, unlocking and locking are achieved, operation uncertainty is reduced, the safety mechanism is suitable for underground gas / coal dust explosion protection, and safety and environmental adaptability are remarkably improved.

The invention discloses an inflatable tunnel explosion-proof device with a double-layer bag body structure, and belongs to the field of explosion protection in a closed or semi-closed space. According to the structure, a plurality of inflation interference cones are fixedly connected to the front surface of a flexible sealing pressure relief main bag, the roots of the inflation interference cones communicate with one another through inflation channels, a plurality of pressure relief holes are formed in the front surface of the flexible sealing pressure relief main bag, and each pressure relief film is attached to the inner surface of the flexible sealing pressure relief main bag and covers the corresponding pressure relief hole. The pressure relief film is partially and fixedly connected with the inner surface of the flexible sealing pressure relief main bag, and the sealing auxiliary bag is fixedly attached to the peripheral side face of the flexible sealing pressure relief main bag in a shape follow-up mode. When the explosion-proof device is used, the flexible inflation supporting frameworks in the inflation interference cone, the sealing auxiliary bag and the flexible sealing pressure relief main bag are inflated, so that the explosion-proof device is unfolded. After being inflated, the explosion-proof device can be attached to the tunnel wall in shape and achieve tight plugging, a gap between the bag body and the tunnel wall is eliminated, and the overall protection effect is improved. The explosion protection device is suitable for sudden explosion protection in a closed or semi-closed space.

The invention relates to a method, device and equipment, and the method comprises the steps: arranging a pressure taking end in a sealing cavity, collecting and outputting a pressure signal to an external pressure monitoring unit, and enabling the external pressure monitoring unit to be provided with a power supply loop and a pressure signal collection channel which are independent of an airtight detector, the interlocking output channel is electrically connected with an interlocking component which is used for stopping detection, cutting off gas supply and releasing pressure; based on a pressure signal collected by an external pressure monitoring unit, the pressure in the sealing cavity is monitored in real time, and whether the pressure exceeds a preset safety threshold value or not is judged; when the external pressure monitoring unit judges that the pressure exceeds a preset safety threshold value and the airtight detector does not output alarm state information, the interlocking output channel drives the interlocking component to execute the steps of stopping detection, cutting off gas supply and releasing pressure so as to terminate the abnormal pressure increasing process. The redundancy and safety of the system are improved, and equipment damage and safety accidents are effectively prevented.

The gas positive pressure explosion-proof device comprises a cabinet body, a bottom partition plate, a top partition plate and a gas tank cabinet, wherein the bottom partition plate and the top partition plate are connected to the inner wall of the cabinet body; a mounting frame is connected to the bottom of the bottom partition plate, a circulating heat dissipation mechanism is arranged on the surface of the mounting frame, one end of a heat exchange pipe of the circulating heat dissipation mechanism is connected into the gas tank cabinet, a positioning frame is connected into the gas tank cabinet, and a clamping assembly for rapidly mounting the compressed gas tank is arranged on the surface of the positioning frame; a heat dissipation guide cylinder is connected to the surface of the top partition plate, an air guide fan is embedded in the heat dissipation guide cylinder, and a dustproof exhaust hood capable of adjusting the air displacement is arranged on one side of the air guide fan and located on the surface of the cabinet body; according to the invention, the temperature in the cabinet caused by work or environmental factors can be effectively reduced, heat accumulation is avoided, the operation safety of the cabinet body is improved, the compressed gas tank is modularly installed, the disassembly and assembly process of the gas tank is simplified, and the daily maintenance, overhaul or replacement efficiency is improved.

1. Name of the product in this design: Explosion-proof ring (box cover). 2. Purpose of this design: To be installed on the explosion-proof box cover and cooperate with the explosion-proof ring on the box to achieve sealing and explosion protection. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention discloses an explosion-proof fan motor for use in complex environments, relating to the field of fan motors. It solves the problem that existing explosion-proof fan motors for complex environments struggle to balance explosion protection and efficient heat dissipation, resulting in insufficient heat dissipation efficiency during motor operation. The invention includes a housing, a rotor shaft, a circulation mechanism, and a dust removal mechanism. The circulation mechanism includes a heat dissipation pipe and a driving component, while the dust removal mechanism includes a cleaning ring. This invention controls the flow of fluid from one side to the other inside the housing through the driving component within the circulation mechanism, and delivers it to the heat dissipation pipe at one end, dissipating heat to the outside through the heat dissipation pipe, and circulating it within the heat dissipation pipe to the other end of the housing, achieving internal airflow circulation. When the rotor shaft rotates, the dust removal mechanism drives the cleaning ring to slowly slide back and forth along the outer wall of the heat dissipation pipe, removing impurities adhering to the heat dissipation pipe and the outer wall of the housing. At the same time, it can prevent accumulated impurities from affecting the movement of the cleaning ring itself, thereby improving heat dissipation efficiency.

The invention discloses a bulletproof anti-collision intelligent repair coating structure for an oil storage container, and relates to the technical field of explosion prevention. The intelligent repairing coating structure sequentially comprises at least one self-repairing combined layer, a third polyurea layer and a bottom coating arranged on the outer side face of the oil storage container in a coating mode from outside to inside. The self-repairing combined layer comprises a first polyurea layer, a second polyurea layer is located on the inner side of the first polyurea layer, and oil absorption expansion resin particles with the volume ratio of 10-30% are mixed in the second polyurea layer; a third polyurea layer is arranged between the self-repairing combined layer closest to the oil storage container side and the bottom coating; the elastic elongation of the third polyurea layer is not larger than that of the second polyurea layer, and the elastic elongation of the second polyurea layer is not larger than that of the first polyurea layer. The bulletproof and anti-collision composite material has the characteristics of high mechanical strength and good bulletproof and anti-collision effects.

The application discloses an explosion-proof environment-friendly electric heating oil guide furnace and a working method, relates to the technical field of organic heat carrier heating equipment, and comprises a heat conducting oil main circulation loop, an explosion-proof nitrogen sealing protection system, a multi-parameter monitoring interlocking system and an environment-friendly oil gas separation unit; the heat conducting oil main circulation loop is sequentially and serially provided with an inlet filter, an inlet stop valve, an inlet temperature sensor, an oil gas separator, a circulating pump, an electric heating pipe, an outlet temperature sensor, an outlet stop valve and a vortex flow meter along the heat conducting oil circulation flow direction; the oil outlet of the vortex flow meter is in communication with the oil inlet of an external temperature control device; the oil inlet of the inlet filter is in communication with the oil return port of the external temperature control device; and a closed liquid phase circulation loop is formed. The explosion-proof environment-friendly electric heating oil guide furnace and the working method have the advantages that system-level explosion protection and waste gas-free full-closed environment-friendly treatment are realized, the operation safety is improved, and the service life of the equipment is remarkably prolonged.

The utility model belongs to the technical field of anti-explosion protection, and discloses an anti-explosion delivery window applied to material conveying of an anti-explosion compartment, which comprises inner side cushion frames arranged at the edges of the inner side and the outer side of an anti-explosion window, and an upper pressing frame, a side pressing frame and a lower pressing frame are arranged on one side, far away from a wall body, of each inner side cushion frame. An L-shaped notch is formed in the inner side of the lower plate edge of the upper pressing frame, the L-shaped notch and the inner side cushion frame form a first limiting groove with a downward opening, the lower pressing frame comprises a lower pressing plate and a cushion block, a second limiting groove with an upward opening is formed among the upper side of the lower pressing plate, the cushion block and the inner side cushion frame, and an anti-explosion window plate is jointly arranged in the first limiting groove and the second limiting groove in a sliding mode; the driving air cylinder is arranged on the wall body and is used for driving the anti-explosion window plate to slide. When the anti-explosion window plate on one side of the anti-explosion window is in the open state, the anti-explosion window plate on the other side of the anti-explosion window is in the closed state, the interior of the anti-explosion chamber is isolated from the external space, and therefore the influence of internal explosion on the outside in the material conveying process is effectively avoided.

The utility model relates to the technical field of biological detection, and discloses a lightning protection and explosion prevention detection device for fire-fighting equipment, which comprises a protection box, a fixing assembly is arranged outside the protection box, a box door is rotatably connected outside the protection box, and a lock catch assembly is arranged outside the box door; the fixing assembly comprises a connecting block, the connecting block is fixedly connected to the outer side of the protection box, an arc-shaped fixing block is fixedly connected to the outer portion of the connecting block, a movable block is slidably connected to the middle of the arc-shaped fixing block, a locking bolt is arranged in the middle of the arc-shaped fixing block, and a hole groove is formed in the middle of the movable block. According to the utility model, the movable block can be fixed with the arc-shaped fixed block by rotating the locking bolt along the arc-shaped fixed block, so that the protection box is not easy to shake or displace after being fixed, the accuracy and reliability of detection data are ensured, and the influence on the detection result due to the shaking of the device is avoided.

The invention relates to the field of refrigerating devices, in particular to an energy-saving cooling and refrigerating device for wine essence raw materials. According to the energy-saving cooling and refrigerating device for the wine essence raw materials, the multiple cooling cabins with the independent areas and the cabin covers capable of bouncing automatically are arranged in the underground cold storage, only leaked gas in the cooling cabins with the high concentration is diluted and rapidly released, and when a large amount of leaked gas is generated within a short time, the leaked gas can be rapidly released; the device can be matched with an inert gas pressurization cabin to enhance the dilution effect and quickly release leaked gas to a long distance, and the cabin cover can also cooperate with the inert gas pressurization cabin and the buried cylinder to provide impact buffering protection for an exploded cooling cabin. The technical defect that the refrigeration energy consumption is increased due to the fact that external fresh air is continuously conveyed into the refrigeration warehouse and leaked gas is released in time during the cooling storage period of the wine essence raw materials is overcome, the anti-explosion protection effect is achieved, and damage to surrounding personnel and articles when the leaked gas explodes is reduced.

The invention belongs to the technical field of oil-immersed transformers, and particularly relates to a nitrogen-filled sealed oil-immersed transformer which comprises an oil-immersed transformer body, an oil storage pillow, an oil pillow support and an oil pillow pipeline, the inner wall of the oil storage pillow is fixedly connected with a first high-temperature-resistant rubber interlayer, and the upper surface of the oil storage pillow is fixedly connected with a hollow outer cover. By means of the full-sealed nitrogen charging pressure self-adaptive structure, the inherent defects that a traditional respirator is prone to being blocked, moisture absorption fails, and moisture invades into insulating oil are thoroughly overcome, the risk that an oil tank bursts due to internal short-circuit faults is fundamentally eradicated through double anti-explosion protection of mechanical passive millisecond pressure relief and active volume expansion, and the service life of the oil tank is prolonged. And meanwhile, the overall structure can be directly adapted to transformation and reinstallation of an existing outdoor oil-immersed transformer, structural reconstruction of a transformer body is not needed, the overhaul and maintenance process is simple and convenient, and the transformer has extremely high practicability, safety and popularization value.

Cover assembly comprising: a connection; a body, wherein the body comprises a first connection section and a second connection section, wherein the first connection section is connected to the connection and the second connection section is connected to a side of the first connection section facing away from the connection; wherein an explosion protection structure is formed at a connection point of the first connection section and the second connection section.